A. Leoncini, L. A. Afanasieva, P. Belli, R. Bernabei, Yu. A. Borovlev, F. Cappella, V. Caracciolo, R. Cerulli, N. Cherubini, F. A. Danevich, V. Ya. Degoda, A. Incicchitti, D. V. Kasperovych, Ya. P. Kogut, V. Merlo, G. P. Podust, O. G. Polischuk, A. G. Postupaeva, V. N. Shlegel, V. I. Tretyak
{"title":"Study of Dark Matter with Directionality Approach Using ZnWO4 Crystal Scintillators","authors":"A. Leoncini, L. A. Afanasieva, P. Belli, R. Bernabei, Yu. A. Borovlev, F. Cappella, V. Caracciolo, R. Cerulli, N. Cherubini, F. A. Danevich, V. Ya. Degoda, A. Incicchitti, D. V. Kasperovych, Ya. P. Kogut, V. Merlo, G. P. Podust, O. G. Polischuk, A. G. Postupaeva, V. N. Shlegel, V. I. Tretyak","doi":"10.31526/lhep.2022.348","DOIUrl":"https://doi.org/10.31526/lhep.2022.348","url":null,"abstract":"","PeriodicalId":36085,"journal":{"name":"Letters in High Energy Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69995381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"On the Question of the Analysis ofJ/ψ→ρπ→π+π−π0","authors":"K. Yu. Todyshev","doi":"10.31526/lhep.2022.329","DOIUrl":"https://doi.org/10.31526/lhep.2022.329","url":null,"abstract":"","PeriodicalId":36085,"journal":{"name":"Letters in High Energy Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69995348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Review on Dark Energy Problem and Modified Gravity Theories","authors":"K. Bamba","doi":"10.31526/lhep.2022.352","DOIUrl":"https://doi.org/10.31526/lhep.2022.352","url":null,"abstract":"","PeriodicalId":36085,"journal":{"name":"Letters in High Energy Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69995405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Neutrino Portal to Freeze-in Dark Matter","authors":"P. Bhupal Dev","doi":"10.31526/lhep.2022.356","DOIUrl":"https://doi.org/10.31526/lhep.2022.356","url":null,"abstract":"","PeriodicalId":36085,"journal":{"name":"Letters in High Energy Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69995437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Embedding theorems, which have a long history in the general theory of relativity, are used in this paper to account for two of the more troubling aspects of Morris-Thorne wormholes: (1) the origin of exotic matter and the amount needed to sustain a wormhole, and (2) the enormous radial tension that is characteristic of wormholes with moderately sized throats. Attributing the latter to exotic matter ignores the fact that exotic matter was introduced for a completely different reason and is usually present in only small quantities.
{"title":"Using Embedding Theorems to Account for the Extreme Properties of Traversable Wormholes","authors":"Peter K. F. Kuhfittig","doi":"10.31526/lhep.2022.244","DOIUrl":"https://doi.org/10.31526/lhep.2022.244","url":null,"abstract":"Embedding theorems, which have a long history in the general theory of relativity, are used in this paper to account for two of the more troubling aspects of Morris-Thorne wormholes: (1) the origin of exotic matter and the amount needed to sustain a wormhole, and (2) the enormous radial tension that is characteristic of wormholes with moderately sized throats. Attributing the latter to exotic matter ignores the fact that exotic matter was introduced for a completely different reason and is usually present in only small quantities.","PeriodicalId":36085,"journal":{"name":"Letters in High Energy Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69995277","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We review the main results of our investigations motivated by the tadpole potentials of ten–dimensional strings with broken supersymmetry. While these are at best partial indications, it is hard to resist the feeling that they do capture some lessons of String Theory. For example, these very tadpole potentials lead to weak-string-coupling cosmologies that appear to provide clues on the onset of the inflation from an initial fast roll. The transition, if accessible to us, would offer a natural explanation for the lack of power manifested by the CMB at large angular scales. In addition, the same tadpole potentials can drive spontaneous compactifications to lower–dimensional Minkowski spaces at corresponding length scales. Furthermore, the cosmological solutions exhibit an intriguing “instability of isotropy” that, if taken at face value, would point to an accidental origin of compactification. Finally, symmetric static AdS× S solutions driven by the tadpole potentials also exist, but they are unstable due to mixings induced by their internal fluxes. On the other hand, the original Dudas–Mourad solution is perturbatively stable, and we have gathered some detailed evidence that instabilities induced by internal fluxes can be held under control in a similar class of weak–coupling type–I IB compactifications to Minkowski space. Invited contribution to the special issue of Letters in High Energy Physics (LHEP) on “Swampland and String Theory Landscape”, edited by I. Antoniadis, K. Benakli and E. Dudas
我们回顾了由破缺超对称十维弦的蝌蚪势所激发的主要研究结果。虽然这些充其量只是部分迹象，但很难不让人觉得它们确实抓住了弦理论的一些教训。例如，这些蝌蚪势导致了弱弦耦合宇宙学，它似乎提供了从最初的快速滚动开始的暴胀的线索。如果我们能观测到这种转变，就能很自然地解释宇宙微波背景在大角度尺度上表现出的能量不足。此外，相同的蝌蚪电位可以驱动相应长度尺度下的低维闵可夫斯基空间的自发紧化。此外，宇宙学解表现出一种有趣的“各向同性不稳定性”，如果从表面上看，这将指向紧化的偶然起源。最后，也存在由蝌蚪电位驱动的对称静态adsxs溶液，但由于其内部通量引起的混合而不稳定。另一方面，原始的Dudas-Mourad解是微扰稳定的，并且我们已经收集了一些详细的证据，证明由内通量引起的不稳定性可以在类似Minkowski空间的一类弱耦合i型IB紧化中被控制。应邀为《高能物理快报》(LHEP)关于“沼泽和弦理论景观”的特刊撰稿，由I. Antoniadis, K. Benakli和E. Dudas编辑
{"title":"String (In)Stability Issues with Broken Supersymmetry","authors":"J. Mourad, A. Sagnotti","doi":"10.31526/lhep.2021.219","DOIUrl":"https://doi.org/10.31526/lhep.2021.219","url":null,"abstract":"We review the main results of our investigations motivated by the tadpole potentials of ten–dimensional strings with broken supersymmetry. While these are at best partial indications, it is hard to resist the feeling that they do capture some lessons of String Theory. For example, these very tadpole potentials lead to weak-string-coupling cosmologies that appear to provide clues on the onset of the inflation from an initial fast roll. The transition, if accessible to us, would offer a natural explanation for the lack of power manifested by the CMB at large angular scales. In addition, the same tadpole potentials can drive spontaneous compactifications to lower–dimensional Minkowski spaces at corresponding length scales. Furthermore, the cosmological solutions exhibit an intriguing “instability of isotropy” that, if taken at face value, would point to an accidental origin of compactification. Finally, symmetric static AdS× S solutions driven by the tadpole potentials also exist, but they are unstable due to mixings induced by their internal fluxes. On the other hand, the original Dudas–Mourad solution is perturbatively stable, and we have gathered some detailed evidence that instabilities induced by internal fluxes can be held under control in a similar class of weak–coupling type–I IB compactifications to Minkowski space. Invited contribution to the special issue of Letters in High Energy Physics (LHEP) on “Swampland and String Theory Landscape”, edited by I. Antoniadis, K. Benakli and E. Dudas","PeriodicalId":36085,"journal":{"name":"Letters in High Energy Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48577925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A review of the Higgs portal-vector dark matter interpretation of the spin-independent darkmatter nucleon elastic scattering cross section is presented, where the invisible Higgs decay width measured at the LHC is used. Effective Field Theory and ultraviolet complete models are discussed. LHC interpretations show only the scalar and Majorana dark-matter scenarios; we propose to include interpretation for vector dark matter in the EFT and UV completions theoretical framework. In addition, our studies suggest an extension of the LHC dark matter interpretations to the sub-GeV regime.
{"title":"Higgs Portal Vector Dark Matter Interpretation: Review of EffectiveField Theory Approach and Ultraviolet Complete Models","authors":"M. Zaazoua, L. Truong, K. Assamagan, F. Fassi","doi":"10.31526/lhep.2022.270","DOIUrl":"https://doi.org/10.31526/lhep.2022.270","url":null,"abstract":"A review of the Higgs portal-vector dark matter interpretation of the spin-independent darkmatter nucleon elastic scattering cross section is presented, where the invisible Higgs decay width measured at the LHC is used. Effective Field Theory and ultraviolet complete models are discussed. LHC interpretations show only the scalar and Majorana dark-matter scenarios; we propose to include interpretation for vector dark matter in the EFT and UV completions theoretical framework. In addition, our studies suggest an extension of the LHC dark matter interpretations to the sub-GeV regime.","PeriodicalId":36085,"journal":{"name":"Letters in High Energy Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42274111","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We formulate the Lagrangian of the Newtonian cosmology where the cosmological constant is also introduced. Following the affine quantization procedure, the Hamiltonian operator is derived. The wave functions of the Newtonian universe and the corresponding eigenvalues for the case of matter dominated by a negative cosmological constant are given.
{"title":"Quantum Newtonian Cosmology Revisited","authors":"L. Gouba","doi":"10.31526/LHEP.2022.321","DOIUrl":"https://doi.org/10.31526/LHEP.2022.321","url":null,"abstract":"We formulate the Lagrangian of the Newtonian cosmology where the cosmological constant is also introduced. Following the affine quantization procedure, the Hamiltonian operator is derived. The wave functions of the Newtonian universe and the corresponding eigenvalues for the case of matter dominated by a negative cosmological constant are given.","PeriodicalId":36085,"journal":{"name":"Letters in High Energy Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41771588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Formal solutions of any-order mass, angular-momentum, dipole perturbations on the Schwarzschild background spacetime are derived in a gauge-invariant manner. Once we accept the proposal in [K. Nakamura, Class. Quantum Grav. {bf 38} (2021), 145010.], we can extend the gauge-invariant linear perturbation theory on the Schwarzschild background spacetime including the monopole ($l=0$) and dipole ($l=1$) modes to any-order perturbations of the same background spacetime through the arguments in [K. Nakamura, Class. Quantum Grav. {bf 31} (2014), 135013.]. As a result of this resolution, we reached to a simple derivation of the above formal solutions of any order.
{"title":"Formal Solutions of Any-Order Mass, Angular-Momentum, andDipole Perturbations on the Schwarzschild Background Spacetime","authors":"Kouji Nakamura","doi":"10.31526/lhep.2021.215","DOIUrl":"https://doi.org/10.31526/lhep.2021.215","url":null,"abstract":"Formal solutions of any-order mass, angular-momentum, dipole perturbations on the Schwarzschild background spacetime are derived in a gauge-invariant manner. Once we accept the proposal in [K. Nakamura, Class. Quantum Grav. {bf 38} (2021), 145010.], we can extend the gauge-invariant linear perturbation theory on the Schwarzschild background spacetime including the monopole ($l=0$) and dipole ($l=1$) modes to any-order perturbations of the same background spacetime through the arguments in [K. Nakamura, Class. Quantum Grav. {bf 31} (2014), 135013.]. As a result of this resolution, we reached to a simple derivation of the above formal solutions of any order.","PeriodicalId":36085,"journal":{"name":"Letters in High Energy Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41630777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Explaining the Results of EDGES Observation of 21 cm Line with Dark Matter-Dark Energy and Dark Matter-Baryon Interactions","authors":"Upala Mukhopadhyay, D. Majumdar, Kanan K. Datta","doi":"10.31526/lhep.2021.208","DOIUrl":"https://doi.org/10.31526/lhep.2021.208","url":null,"abstract":"","PeriodicalId":36085,"journal":{"name":"Letters in High Energy Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47738560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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