Pub Date : 2025-02-27DOI: 10.1103/physrevd.111.035029
Rebeca Gonzalez Suarez, Baibhab Pattnaik, José Zurita
We examine the possibility to detect new SM-neutral vector bosons (Z′) that couple exclusively to leptons in the electron-positron mode of the Future Circular Collider (FCC-ee). Focusing on the Z′ production with a radiated photon search channel, we show that the FCC-ee can significantly extend the unprobed parameter space by increasing the exclusion in the coupling by one to two orders of magnitude in the kinematically allowed mass range (from 10 to 365 GeV), with the leading sensitivity being driven by the muon channel. In doing so, it outperforms other proposed lepton collider options such as CLIC and ILC in this range of masses. Further, we discuss the possibility of improving the sensitivity of the FCC-ee to this model through the modification of the dilepton invariant mass resolution and the photon energy resolution. The impact of systematic uncertainties on the expected sensitivities is also studied. Published by the American Physical Society2025
{"title":"Leptophilic Z′ bosons at the FCC-ee: Discovery opportunities","authors":"Rebeca Gonzalez Suarez, Baibhab Pattnaik, José Zurita","doi":"10.1103/physrevd.111.035029","DOIUrl":"https://doi.org/10.1103/physrevd.111.035029","url":null,"abstract":"We examine the possibility to detect new SM-neutral vector bosons (Z</a:mi>′</a:mo></a:msup></a:math>) that couple exclusively to leptons in the electron-positron mode of the Future Circular Collider (FCC-ee). Focusing on the <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:msup><c:mi>Z</c:mi><c:mo>′</c:mo></c:msup></c:math> production with a radiated photon search channel, we show that the FCC-ee can significantly extend the unprobed parameter space by increasing the exclusion in the coupling by one to two orders of magnitude in the kinematically allowed mass range (from 10 to 365 GeV), with the leading sensitivity being driven by the muon channel. In doing so, it outperforms other proposed lepton collider options such as CLIC and ILC in this range of masses. Further, we discuss the possibility of improving the sensitivity of the FCC-ee to this model through the modification of the dilepton invariant mass resolution and the photon energy resolution. The impact of systematic uncertainties on the expected sensitivities is also studied. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"27 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143517883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-27DOI: 10.1103/physrevd.111.034045
Matias Doradau, Ramiro Tomas Martinez, Rodolfo Sassot, Marco Stratmann
We revisit the notion of nuclear parton-to-pion fragmentation functions at next-to-leading order accuracy as an effective description of hadroproduction in nuclear environments such as in semi-inclusive lepton-nucleus deep-inelastic scattering and in single inclusive proton-nucleus collisions. We assess their viability in the face of very precise data collected for the latter at the CERN-LHC over the past decade as well as recent measurements of the former carried out by the CLAS experiment at JLab. Published by the American Physical Society2025
{"title":"Pion nuclear fragmentation functions revisited","authors":"Matias Doradau, Ramiro Tomas Martinez, Rodolfo Sassot, Marco Stratmann","doi":"10.1103/physrevd.111.034045","DOIUrl":"https://doi.org/10.1103/physrevd.111.034045","url":null,"abstract":"We revisit the notion of nuclear parton-to-pion fragmentation functions at next-to-leading order accuracy as an effective description of hadroproduction in nuclear environments such as in semi-inclusive lepton-nucleus deep-inelastic scattering and in single inclusive proton-nucleus collisions. We assess their viability in the face of very precise data collected for the latter at the CERN-LHC over the past decade as well as recent measurements of the former carried out by the CLAS experiment at JLab. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"23 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143517880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-27DOI: 10.1103/physrevd.111.035027
Prudhvi N. Bhattiprolu, Robert McGehee, Evan Petrosky, Aaron Pierce
A dark sink uses dark-sector interactions to siphon energy from dark matter to lighter dark degrees of freedom, i.e., dark radiation. Here, we extend dark matter models containing a dark sink to sub-MeV masses. We consider a dark sink model where the dark matter is charged under a light dark photon that has kinetic mixing with the Standard Model. For sub-MeV dark matter masses, plasmon decays are the dominant mechanism for transferring energy to the dark sector. Relative to a standard freeze-in cosmology, reproducing the observed dark matter density in a dark sink structure requires an increase in the dark matter couplings to the Standard Model, and hence increased direct detection cross sections. These models provide benchmarks for current and upcoming direct detection experiments. Accounting for plasmon effects, we derive the range of possible dark matter masses and cross sections for dark sink models in the sub-MeV regime. We make the reezen code available to reproduce our benchmarks; it may be of use for other freeze-in scenarios, including those where plasmon decays to the dark matter are important. Published by the American Physical Society2025
{"title":"Sub-MeV dark sink dark matter","authors":"Prudhvi N. Bhattiprolu, Robert McGehee, Evan Petrosky, Aaron Pierce","doi":"10.1103/physrevd.111.035027","DOIUrl":"https://doi.org/10.1103/physrevd.111.035027","url":null,"abstract":"A dark sink uses dark-sector interactions to siphon energy from dark matter to lighter dark degrees of freedom, i.e., dark radiation. Here, we extend dark matter models containing a dark sink to sub-MeV masses. We consider a dark sink model where the dark matter is charged under a light dark photon that has kinetic mixing with the Standard Model. For sub-MeV dark matter masses, plasmon decays are the dominant mechanism for transferring energy to the dark sector. Relative to a standard freeze-in cosmology, reproducing the observed dark matter density in a dark sink structure requires an increase in the dark matter couplings to the Standard Model, and hence increased direct detection cross sections. These models provide benchmarks for current and upcoming direct detection experiments. Accounting for plasmon effects, we derive the range of possible dark matter masses and cross sections for dark sink models in the sub-MeV regime. We make the reezen code available to reproduce our benchmarks; it may be of use for other freeze-in scenarios, including those where plasmon decays to the dark matter are important. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"66 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143517886","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-27DOI: 10.1103/physrevd.111.034047
Adam Freese
Gravitational form factors are often interpreted as providing access to stresses inside hadrons, in particular through Fourier transforms of the form factors D and c¯. Some researchers, however, have expressed skepticism of this interpretation. I revisit the question, and argue that it is indeed appropriate to interpret these quantities as stress distributions. I consider the hydrogen atom’s ground state as a familiar example, and use the pilot wave interpretation of quantum mechanics to give the distributions a clear meaning. A striking result is that c¯—rather than D—quantifies the force law binding the system, which can be understood through Cauchy’s first law of motion. Published by the American Physical Society2025
{"title":"Quantum stresses in the hydrogen atom","authors":"Adam Freese","doi":"10.1103/physrevd.111.034047","DOIUrl":"https://doi.org/10.1103/physrevd.111.034047","url":null,"abstract":"Gravitational form factors are often interpreted as providing access to stresses inside hadrons, in particular through Fourier transforms of the form factors D</a:mi></a:mrow></a:math> and <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:mover accent=\"true\"><c:mi>c</c:mi><c:mo stretchy=\"false\">¯</c:mo></c:mover></c:math>. Some researchers, however, have expressed skepticism of this interpretation. I revisit the question, and argue that it is indeed appropriate to interpret these quantities as stress distributions. I consider the hydrogen atom’s ground state as a familiar example, and use the pilot wave interpretation of quantum mechanics to give the distributions a clear meaning. A striking result is that <g:math xmlns:g=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><g:mover accent=\"true\"><g:mi>c</g:mi><g:mo stretchy=\"false\">¯</g:mo></g:mover></g:math>—rather than <k:math xmlns:k=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><k:mi>D</k:mi></k:math>—quantifies the force law binding the system, which can be understood through Cauchy’s first law of motion. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"31 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143517931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-27DOI: 10.1103/physrevd.111.035026
Hooman Davoudiasl, Peter B. Denton
Current laboratory bounds imply that protons are extremely long-lived. However, this conclusion may not hold for all time and in all of space. We find that the proton lifetime can be ∼15 orders of magnitude shorter in the relatively recent past on Earth or at the present time elsewhere in the Milky Way. A number of terrestrial and astrophysical constraints are examined and potential signals are outlined. We also sketch possible models that could lead to spatial or temporal variations in the proton lifetime. A positive signal could be compelling evidence for a new long range force of nature, with important implications for the limitations of fundamental inferences based solely on laboratory measurements. Published by the American Physical Society2025
{"title":"How fast can protons decay?","authors":"Hooman Davoudiasl, Peter B. Denton","doi":"10.1103/physrevd.111.035026","DOIUrl":"https://doi.org/10.1103/physrevd.111.035026","url":null,"abstract":"Current laboratory bounds imply that protons are extremely long-lived. However, this conclusion may not hold for all time and in all of space. We find that the proton lifetime can be ∼</a:mo>15</a:mn></a:math> orders of magnitude shorter in the relatively recent past on Earth or at the present time elsewhere in the Milky Way. A number of terrestrial and astrophysical constraints are examined and potential signals are outlined. We also sketch possible models that could lead to spatial or temporal variations in the proton lifetime. A positive signal could be compelling evidence for a new long range force of nature, with important implications for the limitations of fundamental inferences based solely on laboratory measurements. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"33 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143518502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-27DOI: 10.1103/physrevd.111.046027
Qiang Wen, Mingshuai Xu, Haocheng Zhong
In the context of the AdS/CFT, it was recently proposed that the boundary partial entanglement entropy structure can be represented by the so-called partial entanglement entropy (PEE) threads in the AdS bulk, which are bulk geodesics with the density determined by the boundary PEE structure [. and .]. In Poincaré anti–de Sitter (AdS) space, it was shown that the PEE threads cover the AdS space uniformly, such that the number of intersections between any bulk surface and the bulk PEE threads is always given by the area of the surface divided by 4G. In this paper, we investigate the configurations of PEE threads when the boundary state is in the island phase. The island phase was studied in the context of the holographic Weyl transformed CFT2, which has been shown to capture all the main features of AdS/BCFT (Boundary Conformal Field Theory). Compared with AdS3/CFT2, in the island phase instead of modifying the distribution of the bulk PEE threads, we should replace the boundary points with the corresponding cutoff spheres. Then the two-point functions and the four-point functions of twist operators can be reproduced by identifying the bulk homologous surfaces anchored on the corresponding cutoff spheres that has the minimal number of intersections with the bulk PEE threads. This gives us a better understanding about the PEE structure in the island phase and reproduces the island formula for entanglement entropy by allowing homologous surfaces to anchor on any cutoff spheres. Furthermore, it gives a demonstration for the two basic proposals and a better understanding for the entanglement contribution that makes the foundation to compute the balanced partial entanglement entropy [.], which reproduces the entanglement wedge cross section in the island phase. Published by the American Physical Society2025
{"title":"Partial entanglement entropy threads in the island phase","authors":"Qiang Wen, Mingshuai Xu, Haocheng Zhong","doi":"10.1103/physrevd.111.046027","DOIUrl":"https://doi.org/10.1103/physrevd.111.046027","url":null,"abstract":"In the context of the AdS/CFT, it was recently proposed that the boundary partial entanglement entropy structure can be represented by the so-called partial entanglement entropy (PEE) threads in the AdS bulk, which are bulk geodesics with the density determined by the boundary PEE structure [. and .]. In Poincaré anti–de Sitter (AdS) space, it was shown that the PEE threads cover the AdS space uniformly, such that the number of intersections between any bulk surface and the bulk PEE threads is always given by the area of the surface divided by 4</a:mn>G</a:mi></a:mrow></a:math>. In this paper, we investigate the configurations of PEE threads when the boundary state is in the island phase. The island phase was studied in the context of the holographic Weyl transformed <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:mrow><c:msub><c:mrow><c:mi>CFT</c:mi></c:mrow><c:mrow><c:mn>2</c:mn></c:mrow></c:msub></c:mrow></c:math>, which has been shown to capture all the main features of AdS/BCFT (Boundary Conformal Field Theory). Compared with <e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><e:mrow><e:msub><e:mrow><e:mi>AdS</e:mi></e:mrow><e:mrow><e:mn>3</e:mn></e:mrow></e:msub><e:mo>/</e:mo><e:msub><e:mrow><e:mi>CFT</e:mi></e:mrow><e:mn>2</e:mn></e:msub></e:mrow></e:math>, in the island phase instead of modifying the distribution of the bulk PEE threads, we should replace the boundary points with the corresponding cutoff spheres. Then the two-point functions and the four-point functions of twist operators can be reproduced by identifying the bulk homologous surfaces anchored on the corresponding cutoff spheres that has the minimal number of intersections with the bulk PEE threads. This gives us a better understanding about the PEE structure in the island phase and reproduces the island formula for entanglement entropy by allowing homologous surfaces to anchor on any cutoff spheres. Furthermore, it gives a demonstration for the two basic proposals and a better understanding for the entanglement contribution that makes the foundation to compute the balanced partial entanglement entropy [.], which reproduces the entanglement wedge cross section in the island phase. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"30 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143517882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-27DOI: 10.1103/physrevd.111.035028
Asli M. Abdullahi, Jaime Hoefken Zink, Matheus Hostert, Daniele Massaro, Silvia Pascoli
The MiniBooNE low-energy excess stands as an unexplained anomaly in short-baseline neutrino oscillation experiments. It has been shown that it can be explained in the context of dark sector models. Here, we provide an overview of the possible new-physics solutions based on electron, photon, and dilepton final states. We systematically discuss the various production mechanisms for dark particles in neutrino-nucleus scattering. Our main result is a comprehensive fit to the MiniBooNE energy spectrum in the parameter space of dark neutrino models, where short-lived heavy neutral leptons are produced in neutrino interactions and decay to e+e− pairs inside the detector. For the first time, other experiments will be able to directly confirm or rule out dark neutrino interpretations of the MiniBooNE low-energy excess. Published by the American Physical Society2025
{"title":"Panorama of new-physics explanations to the MiniBooNE excess","authors":"Asli M. Abdullahi, Jaime Hoefken Zink, Matheus Hostert, Daniele Massaro, Silvia Pascoli","doi":"10.1103/physrevd.111.035028","DOIUrl":"https://doi.org/10.1103/physrevd.111.035028","url":null,"abstract":"The MiniBooNE low-energy excess stands as an unexplained anomaly in short-baseline neutrino oscillation experiments. It has been shown that it can be explained in the context of dark sector models. Here, we provide an overview of the possible new-physics solutions based on electron, photon, and dilepton final states. We systematically discuss the various production mechanisms for dark particles in neutrino-nucleus scattering. Our main result is a comprehensive fit to the MiniBooNE energy spectrum in the parameter space of dark neutrino models, where short-lived heavy neutral leptons are produced in neutrino interactions and decay to e</a:mi>+</a:mo></a:msup>e</a:mi>−</a:mo></a:msup></a:math> pairs inside the detector. For the first time, other experiments will be able to directly confirm or rule out dark neutrino interpretations of the MiniBooNE low-energy excess. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"31 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143517884","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-27DOI: 10.1103/physrevd.111.034046
Meng-Yuan Li, Wen-Tao Lyu, Li-Juan Liu, En Wang
We have investigated the process Λ</a:mi>c</a:mi>+</a:mo></a:msubsup>→</a:mo>π</a:mi>+</a:mo></a:msup>η</a:mi>n</a:mi></a:math> by taking into account the contributions from the nucleon resonance <e:math xmlns:e="http://www.w3.org/1998/Math/MathML" display="inline"><e:mi>N</e:mi><e:mo stretchy="false">(</e:mo><e:mn>1535</e:mn><e:mo stretchy="false">)</e:mo></e:math> and the scalar meson <i:math xmlns:i="http://www.w3.org/1998/Math/MathML" display="inline"><i:msub><i:mi>a</i:mi><i:mn>0</i:mn></i:msub><i:mo stretchy="false">(</i:mo><i:mn>980</i:mn><i:mo stretchy="false">)</i:mo></i:math>, which could be dynamically generated by the interaction of the <m:math xmlns:m="http://www.w3.org/1998/Math/MathML" display="inline"><m:mi>S</m:mi></m:math>-wave pseudoscalar meson-octet baryon and the <o:math xmlns:o="http://www.w3.org/1998/Math/MathML" display="inline"><o:mi>S</o:mi></o:math>-wave pseudoscalar meson-pseudoscalar meson, respectively. Our results show that, in <q:math xmlns:q="http://www.w3.org/1998/Math/MathML" display="inline"><q:mi>η</q:mi><q:mi>n</q:mi></q:math> invariant mass distribution, there is a significant near-threshold enhancement structure, which could be associated with <s:math xmlns:s="http://www.w3.org/1998/Math/MathML" display="inline"><s:mi>N</s:mi><s:mo stretchy="false">(</s:mo><s:mn>1535</s:mn><s:mo stretchy="false">)</s:mo></s:math>. On the other hand, one can find a clear cusp structure of <w:math xmlns:w="http://www.w3.org/1998/Math/MathML" display="inline"><w:msub><w:mi>a</w:mi><w:mn>0</w:mn></w:msub><w:mo stretchy="false">(</w:mo><w:mn>980</w:mn><w:mo stretchy="false">)</w:mo></w:math> in π</ab:mi>+</ab:mo></ab:msup>η</ab:mi></ab:math> invariant mass distribution. We further estimate the ratio <cb:math xmlns:cb="http://www.w3.org/1998/Math/MathML" display="inline"><cb:mrow><cb:mi>R</cb:mi><cb:mo>=</cb:mo><cb:mi mathvariant="script">B</cb:mi><cb:mo stretchy="false">(</cb:mo><cb:msubsup><cb:mrow><cb:mi mathvariant="normal">Λ</cb:mi></cb:mrow><cb:mrow><cb:mi>c</cb:mi></cb:mrow><cb:mrow><cb:mo>+</cb:mo></cb:mrow></cb:msubsup><cb:mo stretchy="false">→</cb:mo><cb:msub><cb:mrow><cb:mi>a</cb:mi></cb:mrow><cb:mrow><cb:mn>0</cb:mn></cb:mrow></cb:msub><cb:mo stretchy="false">(</cb:mo><cb:mn>980</cb:mn><cb:msup><cb:mrow><cb:mo stretchy="false">)</cb:mo></cb:mrow><cb:mrow><cb:mo>+</cb:mo></cb:mrow></cb:msup><cb:mi>n</cb:mi><cb:mo stretchy="false">)</cb:mo><cb:mo>/</cb:mo><cb:mi mathvariant="script">B</cb:mi><cb:mo stretchy="false">(</cb:mo><cb:msubsup><cb:mrow><cb:mi mathvariant="normal">Λ</cb:mi></cb:mrow><cb:mrow><cb:mi>c</cb:mi></cb:mrow><cb:mrow><cb:mo>+</cb:mo></cb:mrow></cb:msubsup><cb:mo stretchy="false">→</cb:mo><cb:msup><cb:mrow><cb:mi>π</cb:mi></cb:mrow><cb:mrow><cb:mo>+</cb:mo></cb:mrow></cb:msup><cb:mi>η</cb:mi><cb:mi>n</cb:mi><cb:mo stretchy="false">)</cb:mo><cb:mo>≈</cb:mo><cb:mn>0.313</cb:mn></cb:mrow></cb:math>. Our results can be tested by BESIII, Belle II, and the proposed Super Tau-Charm Facility experiments in the
{"title":"Roles of the N(1535) and a0(980) in the process Λc+→π+ηn","authors":"Meng-Yuan Li, Wen-Tao Lyu, Li-Juan Liu, En Wang","doi":"10.1103/physrevd.111.034046","DOIUrl":"https://doi.org/10.1103/physrevd.111.034046","url":null,"abstract":"We have investigated the process Λ</a:mi>c</a:mi>+</a:mo></a:msubsup>→</a:mo>π</a:mi>+</a:mo></a:msup>η</a:mi>n</a:mi></a:math> by taking into account the contributions from the nucleon resonance <e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><e:mi>N</e:mi><e:mo stretchy=\"false\">(</e:mo><e:mn>1535</e:mn><e:mo stretchy=\"false\">)</e:mo></e:math> and the scalar meson <i:math xmlns:i=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><i:msub><i:mi>a</i:mi><i:mn>0</i:mn></i:msub><i:mo stretchy=\"false\">(</i:mo><i:mn>980</i:mn><i:mo stretchy=\"false\">)</i:mo></i:math>, which could be dynamically generated by the interaction of the <m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><m:mi>S</m:mi></m:math>-wave pseudoscalar meson-octet baryon and the <o:math xmlns:o=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><o:mi>S</o:mi></o:math>-wave pseudoscalar meson-pseudoscalar meson, respectively. Our results show that, in <q:math xmlns:q=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><q:mi>η</q:mi><q:mi>n</q:mi></q:math> invariant mass distribution, there is a significant near-threshold enhancement structure, which could be associated with <s:math xmlns:s=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><s:mi>N</s:mi><s:mo stretchy=\"false\">(</s:mo><s:mn>1535</s:mn><s:mo stretchy=\"false\">)</s:mo></s:math>. On the other hand, one can find a clear cusp structure of <w:math xmlns:w=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><w:msub><w:mi>a</w:mi><w:mn>0</w:mn></w:msub><w:mo stretchy=\"false\">(</w:mo><w:mn>980</w:mn><w:mo stretchy=\"false\">)</w:mo></w:math> in π</ab:mi>+</ab:mo></ab:msup>η</ab:mi></ab:math> invariant mass distribution. We further estimate the ratio <cb:math xmlns:cb=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><cb:mrow><cb:mi>R</cb:mi><cb:mo>=</cb:mo><cb:mi mathvariant=\"script\">B</cb:mi><cb:mo stretchy=\"false\">(</cb:mo><cb:msubsup><cb:mrow><cb:mi mathvariant=\"normal\">Λ</cb:mi></cb:mrow><cb:mrow><cb:mi>c</cb:mi></cb:mrow><cb:mrow><cb:mo>+</cb:mo></cb:mrow></cb:msubsup><cb:mo stretchy=\"false\">→</cb:mo><cb:msub><cb:mrow><cb:mi>a</cb:mi></cb:mrow><cb:mrow><cb:mn>0</cb:mn></cb:mrow></cb:msub><cb:mo stretchy=\"false\">(</cb:mo><cb:mn>980</cb:mn><cb:msup><cb:mrow><cb:mo stretchy=\"false\">)</cb:mo></cb:mrow><cb:mrow><cb:mo>+</cb:mo></cb:mrow></cb:msup><cb:mi>n</cb:mi><cb:mo stretchy=\"false\">)</cb:mo><cb:mo>/</cb:mo><cb:mi mathvariant=\"script\">B</cb:mi><cb:mo stretchy=\"false\">(</cb:mo><cb:msubsup><cb:mrow><cb:mi mathvariant=\"normal\">Λ</cb:mi></cb:mrow><cb:mrow><cb:mi>c</cb:mi></cb:mrow><cb:mrow><cb:mo>+</cb:mo></cb:mrow></cb:msubsup><cb:mo stretchy=\"false\">→</cb:mo><cb:msup><cb:mrow><cb:mi>π</cb:mi></cb:mrow><cb:mrow><cb:mo>+</cb:mo></cb:mrow></cb:msup><cb:mi>η</cb:mi><cb:mi>n</cb:mi><cb:mo stretchy=\"false\">)</cb:mo><cb:mo>≈</cb:mo><cb:mn>0.313</cb:mn></cb:mrow></cb:math>. Our results can be tested by BESIII, Belle II, and the proposed Super Tau-Charm Facility experiments in the ","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"130 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143517887","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-27DOI: 10.1103/physrevd.111.035031
Valerie Domcke, Sebastian A. R. Ellis, Joachim Kopp
We argue that dielectric haloscopes like MADMAX, originally designed for detecting axion dark matter, are also very promising gravitational wave detectors. Operated in resonant mode at frequencies around O(10GHz), these detectors benefit from enhanced gravitational wave to photon conversion at the surfaces of a stack of thin dielectric disks. Since the gravitational wave is relativistic, there is an additional enhancement of the signal compared to the axion case due to increased conversion probability of gravitational waves to photons in the vacuum between the disks. A gravitational wave search using a dielectric haloscope imposes stringent requirements on the disk thickness and placement, but relaxed requirements on the disk smoothness. An advantage is the possibility of a broadband or hybrid resonant/broadband operation mode, which extends the frequency range down to O(100MHz). We show that strain sensitivities down to 10−21Hz−1/2×(10GHz/f) will be possible in the coming years for the broadband setup, while a resonant setup optimized for gravitational waves could even reach 3×10−23Hz−1/2×(10GHz/f) with current technology. Published by the American Physical Society2025
{"title":"Dielectric haloscopes as gravitational wave detectors","authors":"Valerie Domcke, Sebastian A. R. Ellis, Joachim Kopp","doi":"10.1103/physrevd.111.035031","DOIUrl":"https://doi.org/10.1103/physrevd.111.035031","url":null,"abstract":"We argue that dielectric haloscopes like MADMAX, originally designed for detecting axion dark matter, are also very promising gravitational wave detectors. Operated in resonant mode at frequencies around O</a:mi>(</a:mo>10</a:mn></a:mtext></a:mtext>GHz</a:mi>)</a:mo></a:mrow></a:math>, these detectors benefit from enhanced gravitational wave to photon conversion at the surfaces of a stack of thin dielectric disks. Since the gravitational wave is relativistic, there is an additional enhancement of the signal compared to the axion case due to increased conversion probability of gravitational waves to photons in the vacuum between the disks. A gravitational wave search using a dielectric haloscope imposes stringent requirements on the disk thickness and placement, but relaxed requirements on the disk smoothness. An advantage is the possibility of a broadband or hybrid resonant/broadband operation mode, which extends the frequency range down to <f:math xmlns:f=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><f:mrow><f:mi mathvariant=\"script\">O</f:mi><f:mo stretchy=\"false\">(</f:mo><f:mn>100</f:mn><f:mtext> </f:mtext><f:mtext> </f:mtext><f:mi>MHz</f:mi><f:mo stretchy=\"false\">)</f:mo></f:mrow></f:math>. We show that strain sensitivities down to <k:math xmlns:k=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><k:mrow><k:msup><k:mrow><k:mn>10</k:mn></k:mrow><k:mrow><k:mo>−</k:mo><k:mn>21</k:mn></k:mrow></k:msup><k:mtext> </k:mtext><k:mtext> </k:mtext><k:msup><k:mrow><k:mi>Hz</k:mi></k:mrow><k:mrow><k:mo>−</k:mo><k:mn>1</k:mn><k:mo>/</k:mo><k:mn>2</k:mn></k:mrow></k:msup><k:mo>×</k:mo><k:mo stretchy=\"false\">(</k:mo><k:mn>10</k:mn><k:mtext> </k:mtext><k:mtext> </k:mtext><k:mi>GHz</k:mi><k:mo>/</k:mo><k:mi>f</k:mi><k:mo stretchy=\"false\">)</k:mo></k:mrow></k:math> will be possible in the coming years for the broadband setup, while a resonant setup optimized for gravitational waves could even reach <o:math xmlns:o=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><o:mrow><o:mn>3</o:mn><o:mo>×</o:mo><o:msup><o:mrow><o:mn>10</o:mn></o:mrow><o:mrow><o:mo>−</o:mo><o:mn>23</o:mn></o:mrow></o:msup><o:mtext> </o:mtext><o:mtext> </o:mtext><o:msup><o:mrow><o:mi>Hz</o:mi></o:mrow><o:mrow><o:mo>−</o:mo><o:mn>1</o:mn><o:mo>/</o:mo><o:mn>2</o:mn></o:mrow></o:msup><o:mo>×</o:mo><o:mo stretchy=\"false\">(</o:mo><o:mn>10</o:mn><o:mtext> </o:mtext><o:mtext> </o:mtext><o:mi>GHz</o:mi><o:mo>/</o:mo><o:mi>f</o:mi><o:mo stretchy=\"false\">)</o:mo></o:mrow></o:math> with current technology. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"70 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143517881","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-02-26DOI: 10.1103/physrevd.111.036034
F. Blaschke, T. Romańczukiewicz, K. Sławińska, A. Wereszczyński
Using renormalization group theory we show that oscillons in (1+1) dimensions can be obtained, at the leading nonlinear order, from Q-balls of universal complex field theories. For potentials with a nonzero cubic or quartic term the universal Q-ball theory is well approximated by the integrable complex sine-Gordon model. This allows us to generalize the usual perturbative expansion by Fodor beyond the simplest unmodulated oscillon case. Concretely, we explain the characteristic amplitude modulations of excited oscillons as an effect of formation of a two-Q-ball (two-oscillon) bound state. Published by the American Physical Society2025
{"title":"Oscillons from Q -balls","authors":"F. Blaschke, T. Romańczukiewicz, K. Sławińska, A. Wereszczyński","doi":"10.1103/physrevd.111.036034","DOIUrl":"https://doi.org/10.1103/physrevd.111.036034","url":null,"abstract":"Using renormalization group theory we show that oscillons in (1</a:mn>+</a:mo>1</a:mn></a:mrow></a:math>) dimensions can be obtained, at the leading nonlinear order, from <c:math xmlns:c=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><c:mi>Q</c:mi></c:math>-balls of universal complex field theories. For potentials with a nonzero cubic or quartic term the universal <e:math xmlns:e=\"http://www.w3.org/1998/Math/MathML\" display=\"inline\"><e:mi>Q</e:mi></e:math>-ball theory is well approximated by the integrable complex sine-Gordon model. This allows us to generalize the usual perturbative expansion by Fodor beyond the simplest unmodulated oscillon case. Concretely, we explain the characteristic amplitude modulations of excited oscillons as an effect of formation of a two-Q-ball (two-oscillon) bound state. <jats:supplementary-material> <jats:copyright-statement>Published by the American Physical Society</jats:copyright-statement> <jats:copyright-year>2025</jats:copyright-year> </jats:permissions> </jats:supplementary-material>","PeriodicalId":20167,"journal":{"name":"Physical Review D","volume":"51 1","pages":""},"PeriodicalIF":5.0,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143506819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：