Pub Date : 2023-05-31DOI: 10.1103/physrevc.107.054314
F. Minato, T. Naito, O. Iwamoto
{"title":"Nuclear many-body effects on particle emission following muon capture on Si28 and ","authors":"F. Minato, T. Naito, O. Iwamoto","doi":"10.1103/physrevc.107.054314","DOIUrl":"https://doi.org/10.1103/physrevc.107.054314","url":null,"abstract":"","PeriodicalId":48700,"journal":{"name":"Physical Review C","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91396360","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 : 2023-03-14DOI: 10.1103/physrevc.107.034305
T. Myo, K. Katō
{"title":"Soft dipole resonance in C8 and its isospin symmetry with ","authors":"T. Myo, K. Katō","doi":"10.1103/physrevc.107.034305","DOIUrl":"https://doi.org/10.1103/physrevc.107.034305","url":null,"abstract":"","PeriodicalId":48700,"journal":{"name":"Physical Review C","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2023-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91397498","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 : 2022-04-04DOI: 10.1103/physrevc.105.045801
B. Lehnert, M. Hult, G. Lutter, G. Marissens, S. Oberstedt, H. Stroh, J. Kotila, A. Oberstedt, K. Zuber
{"title":"Constraints on partial half-lives of Ce136 and ","authors":"B. Lehnert, M. Hult, G. Lutter, G. Marissens, S. Oberstedt, H. Stroh, J. Kotila, A. Oberstedt, K. Zuber","doi":"10.1103/physrevc.105.045801","DOIUrl":"https://doi.org/10.1103/physrevc.105.045801","url":null,"abstract":"","PeriodicalId":48700,"journal":{"name":"Physical Review C","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2022-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88631190","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 : 2022-03-28DOI: 10.1103/physrevc.105.034332
J. Henderson, G. Hackman, P. Ruotsalainen, J. Holt, Steven Ragnar Stroberg, C. Andreoiu, G. Ball, N. Bernier, M. Bowry, R. Caballero-Folch, S. Cruz, A. Diaz Varela, L. Evitts, R. Frederick, A. Garnsworthy, M. Holl, J. Lassen, J. Measures, B. Olaizola, E. O’Sullivan, O. Paetkau, J. Park, J. Smallcombe, C. E. Svensson, K. Whitmore, C. Y. Wu
{"title":"Coulomb excitation of the |Tz|=12","authors":"J. Henderson, G. Hackman, P. Ruotsalainen, J. Holt, Steven Ragnar Stroberg, C. Andreoiu, G. Ball, N. Bernier, M. Bowry, R. Caballero-Folch, S. Cruz, A. Diaz Varela, L. Evitts, R. Frederick, A. Garnsworthy, M. Holl, J. Lassen, J. Measures, B. Olaizola, E. O’Sullivan, O. Paetkau, J. Park, J. Smallcombe, C. E. Svensson, K. Whitmore, C. Y. Wu","doi":"10.1103/physrevc.105.034332","DOIUrl":"https://doi.org/10.1103/physrevc.105.034332","url":null,"abstract":"","PeriodicalId":48700,"journal":{"name":"Physical Review C","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2022-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76427686","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 : 2021-09-13DOI: 10.1103/physrevc.104.035803
G. Quintero Angulo, L. C. Suárez González, A. Pérez Martínez, H. Pérez Rojas
{"title":"Magnetized vector boson gas at any temperature","authors":"G. Quintero Angulo, L. C. Suárez González, A. Pérez Martínez, H. Pérez Rojas","doi":"10.1103/physrevc.104.035803","DOIUrl":"https://doi.org/10.1103/physrevc.104.035803","url":null,"abstract":"","PeriodicalId":48700,"journal":{"name":"Physical Review C","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2021-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74656337","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 : 2021-06-14DOI: 10.1103/physrevc.103.064608
P. Ducru, B. Forget, V. Sobes, G. Hale, M. Paris
{"title":"Shadow poles in the alternative parametrization of \u0000R\u0000-matrix theory","authors":"P. Ducru, B. Forget, V. Sobes, G. Hale, M. Paris","doi":"10.1103/physrevc.103.064608","DOIUrl":"https://doi.org/10.1103/physrevc.103.064608","url":null,"abstract":"","PeriodicalId":48700,"journal":{"name":"Physical Review C","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2021-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87281698","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 : 2021-05-03DOI: 10.1103/physrevc.103.054601
P. Wen, C. Lin, R. Nazmitdinov, S. Vinitsky, O. Chuluunbaatar, A. Gusev, A. Nasirov, H. Jia, A. Gózdz
{"title":"Potential roots of the deep subbarrier heavy-ion fusion hindrance phenomenon within the sudden approximation approach","authors":"P. Wen, C. Lin, R. Nazmitdinov, S. Vinitsky, O. Chuluunbaatar, A. Gusev, A. Nasirov, H. Jia, A. Gózdz","doi":"10.1103/physrevc.103.054601","DOIUrl":"https://doi.org/10.1103/physrevc.103.054601","url":null,"abstract":"","PeriodicalId":48700,"journal":{"name":"Physical Review C","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2021-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81325393","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 : 2021-02-22DOI: 10.1103/PHYSREVC.103.025204
M. Schäfer, B. Bazak, N. Barnea, J. A. Mares
The nature of the $mathrm{ensuremath{Lambda}}nn$ and $_{mathrm{ensuremath{Lambda}}}^{3}mathrm{H}^{*}({J}^{ensuremath{pi}}=3/{2}^{+},phantom{rule{4pt}{0ex}}I=0)$ states is investigated within a pionless effective field theory at leading order, constrained by the low-energy $mathrm{ensuremath{Lambda}}N$ scattering data and hypernuclear three- and four-body data. Bound-state solutions are obtained using the stochastic variational method, and the continuum region is studied by employing two independent methods: the inverse analytic continuation in the coupling constant method and the complex scaling method. Our calculations yield both the $mathrm{ensuremath{Lambda}}nn$ and $_{mathrm{ensuremath{Lambda}}}^{3}mathrm{H}^{*}$ states unbound. We conclude that the excited state $_{mathrm{ensuremath{Lambda}}}^{3}mathrm{H}^{*}$ is a virtual state and the $mathrm{ensuremath{Lambda}}nn$ pole located close to the three-body threshold in a complex energy plane could convert to a true resonance with $mathrm{Re}(E)g0$ for some considered $mathrm{ensuremath{Lambda}}N$ interactions. Finally, the stability of resonance solutions is discussed and limits of the accuracy of performed calculations are assessed.
{"title":"Nature of the \u0000Λnn(Jπ=1/2+,\u0000 \u0000I=1)\u0000 and \u0000Λ3H*(Jπ=3/2+,\u0000 \u0000I=0)\u0000 states","authors":"M. Schäfer, B. Bazak, N. Barnea, J. A. Mares","doi":"10.1103/PHYSREVC.103.025204","DOIUrl":"https://doi.org/10.1103/PHYSREVC.103.025204","url":null,"abstract":"The nature of the $mathrm{ensuremath{Lambda}}nn$ and $_{mathrm{ensuremath{Lambda}}}^{3}mathrm{H}^{*}({J}^{ensuremath{pi}}=3/{2}^{+},phantom{rule{4pt}{0ex}}I=0)$ states is investigated within a pionless effective field theory at leading order, constrained by the low-energy $mathrm{ensuremath{Lambda}}N$ scattering data and hypernuclear three- and four-body data. Bound-state solutions are obtained using the stochastic variational method, and the continuum region is studied by employing two independent methods: the inverse analytic continuation in the coupling constant method and the complex scaling method. Our calculations yield both the $mathrm{ensuremath{Lambda}}nn$ and $_{mathrm{ensuremath{Lambda}}}^{3}mathrm{H}^{*}$ states unbound. We conclude that the excited state $_{mathrm{ensuremath{Lambda}}}^{3}mathrm{H}^{*}$ is a virtual state and the $mathrm{ensuremath{Lambda}}nn$ pole located close to the three-body threshold in a complex energy plane could convert to a true resonance with $mathrm{Re}(E)g0$ for some considered $mathrm{ensuremath{Lambda}}N$ interactions. Finally, the stability of resonance solutions is discussed and limits of the accuracy of performed calculations are assessed.","PeriodicalId":48700,"journal":{"name":"Physical Review C","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2021-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84950319","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 : 2021-02-01DOI: 10.1103/PHYSREVC.103.024601
Phan Nhut Huan, Nguyen Le Anh, Bui Minh Loc, I. Vidaña
Differential cross sections of $(p,n)$ and $(^{3}mathrm{He},t)$ charge-exchange reactions leading to the excitation of the isobaric analog state (IAS) of the target nucleus are calculated with the distorted wave Born approximation. The $G$-matrix double-folding method is employed to determine the nucleus-nucleus optical potential within the framework of the Lane model. $G$ matrices are obtained from a Brueckner-Hartree-Fock calculation using the Argonne Av18 nucleon-nucleon potential. Target densities have been taken from Skyrme-Hartree-Fock calculations which predict values for the neutron skin thickness of heavy nuclei compatible with current existing data. Calculations are compared with experimental data of the reactions $(p,n)mathrm{IAS}$ on $^{14}mathrm{C}$ at ${E}_{mathrm{lab}}=135$ MeV and $^{48}mathrm{Ca}$ at ${E}_{mathrm{lab}}=134$ MeV and ${E}_{mathrm{lab}}=160$ MeV, and $(^{3}mathrm{He},t)mathrm{IAS}$ on $^{58}mathrm{Ni},$ $^{90}mathrm{Zr},$ and $^{208}mathrm{Pb}$ at ${E}_{mathrm{lab}}=420$ MeV. Experimental results are well described without the necessity of any rescaling of the strength of the optical potential. A clear improvement in the description of the differential cross sections for the $(^{3}mathrm{He},t)mathrm{IAS}$ reactions on $^{58}mathrm{Ni}$ and $^{90}mathrm{Zr}$ targets is found when the neutron excess density is used to determine the transition densities. Our results show that the density and isospin dependences of the $G$ matrices play a non-negligible role in the description of the experimental data.
{"title":"Excitation of isobaric analog states from \u0000(p,n)\u0000 and \u0000(He3,t)\u0000 charge-exchange reactions within the \u0000G\u0000-matrix folding method","authors":"Phan Nhut Huan, Nguyen Le Anh, Bui Minh Loc, I. Vidaña","doi":"10.1103/PHYSREVC.103.024601","DOIUrl":"https://doi.org/10.1103/PHYSREVC.103.024601","url":null,"abstract":"Differential cross sections of $(p,n)$ and $(^{3}mathrm{He},t)$ charge-exchange reactions leading to the excitation of the isobaric analog state (IAS) of the target nucleus are calculated with the distorted wave Born approximation. The $G$-matrix double-folding method is employed to determine the nucleus-nucleus optical potential within the framework of the Lane model. $G$ matrices are obtained from a Brueckner-Hartree-Fock calculation using the Argonne Av18 nucleon-nucleon potential. Target densities have been taken from Skyrme-Hartree-Fock calculations which predict values for the neutron skin thickness of heavy nuclei compatible with current existing data. Calculations are compared with experimental data of the reactions $(p,n)mathrm{IAS}$ on $^{14}mathrm{C}$ at ${E}_{mathrm{lab}}=135$ MeV and $^{48}mathrm{Ca}$ at ${E}_{mathrm{lab}}=134$ MeV and ${E}_{mathrm{lab}}=160$ MeV, and $(^{3}mathrm{He},t)mathrm{IAS}$ on $^{58}mathrm{Ni},$ $^{90}mathrm{Zr},$ and $^{208}mathrm{Pb}$ at ${E}_{mathrm{lab}}=420$ MeV. Experimental results are well described without the necessity of any rescaling of the strength of the optical potential. A clear improvement in the description of the differential cross sections for the $(^{3}mathrm{He},t)mathrm{IAS}$ reactions on $^{58}mathrm{Ni}$ and $^{90}mathrm{Zr}$ targets is found when the neutron excess density is used to determine the transition densities. Our results show that the density and isospin dependences of the $G$ matrices play a non-negligible role in the description of the experimental data.","PeriodicalId":48700,"journal":{"name":"Physical Review C","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2021-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1103/PHYSREVC.103.024601","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72543614","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 : 2021-01-28DOI: 10.1103/PHYSREVC.103.L012501
J. de Vries, A. Gnech, S. Shain
Electric dipole moments of nuclei, diamagnetic atoms, and certain molecules are induced by CP-violating nuclear forces. Naive dimensional analysis predicts these forces to be dominated by long-range one-pion-exchange processes, with short-range forces entering only at next-to-next-to-leading order in the chiral expansion. Based on renormalization arguments we argue that a consistent picture of CP-violating nuclear forces requires a leading-order short-distance operator contributing to ${}^1S_0$-${}^3P_0$ transitions, due to the attractive and singular nature of the strong tensor force in the ${}^3P_0$ channel. The short-distance operator leads to $mathcal O(1)$ corrections to static and oscillating, relevant for axion searches, electric dipole moments. We discuss strategies how the finite part of the associated low-energy constant can be determined in the case of CP violation from the QCD theta term by the connection to charge-symmetry violation in nuclear systems.
{"title":"Renormalization of \u0000CP\u0000-violating nuclear forces","authors":"J. de Vries, A. Gnech, S. Shain","doi":"10.1103/PHYSREVC.103.L012501","DOIUrl":"https://doi.org/10.1103/PHYSREVC.103.L012501","url":null,"abstract":"Electric dipole moments of nuclei, diamagnetic atoms, and certain molecules are induced by CP-violating nuclear forces. Naive dimensional analysis predicts these forces to be dominated by long-range one-pion-exchange processes, with short-range forces entering only at next-to-next-to-leading order in the chiral expansion. Based on renormalization arguments we argue that a consistent picture of CP-violating nuclear forces requires a leading-order short-distance operator contributing to ${}^1S_0$-${}^3P_0$ transitions, due to the attractive and singular nature of the strong tensor force in the ${}^3P_0$ channel. The short-distance operator leads to $mathcal O(1)$ corrections to static and oscillating, relevant for axion searches, electric dipole moments. We discuss strategies how the finite part of the associated low-energy constant can be determined in the case of CP violation from the QCD theta term by the connection to charge-symmetry violation in nuclear systems.","PeriodicalId":48700,"journal":{"name":"Physical Review C","volume":null,"pages":null},"PeriodicalIF":3.1,"publicationDate":"2021-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89174685","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}
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