Results 41 to 50 of about 4,809 (187)
New leptons and old lepton numbers
Nuclear Physics B, 1976 Abstract We discuss, within the framework of SU(2) × U(1) gauge theories, possible relationships between the new leptons and the old ones. The importance of the radiative decays U− → e−γ and U− → μ−γ in experimentally determining these relationships is stressed.
F. Wilczek, A. Zee
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Journal of High Energy Physics, 2019 In this paper, motivated by the observation that the Standard Model predictions are now above the experimental data for the mass difference ΔM s(d), we perform a detailed study of B s(d) − B ¯ $$ \overline{B} $$ s(d) mixing and B s → μ + μ − decay in the
Quan-Yi Hu +3 more
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Fortschritte der Physik, Volume 74, Issue 4, April 2026.Abstract String theory has strong implications for cosmology, implying the absence of a cosmological constant, ruling out single‐field slow‐roll inflation, and that black holes decay. The origins of these statements are elucidated within the string‐theoretical swampland programme.
Kay Lehnert
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Journal of High Energy Physics, 2018 Given that the two-Higgs-doublet model of type III (2HDM-III) has the potential to address the RD* $$ {R}_{D^{\left(*\right)}} $$ anomalies while the resolution to the RK* $$ {R}_{K^{\left(*\right)}} $$ deficits requires new degrees of freedom within ...
Shao-Ping Li +3 more
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The global geometrical property of jet events in high-energy nuclear collisions
European Physical Journal C: Particles and Fields, 2020 We present the first theoretical study of medium modifications of the global geometrical pattern, i.e., transverse sphericity ( $$S_{\perp }$$ S ⊥ ) distribution of jet events with parton energy loss in relativistic heavy-ion collisions.
Shi-Yong Chen +4 more
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Vector meson spectral function in a dynamical AdS/QCD model
European Physical Journal C: Particles and Fields, 2022 By using gauge/gravity duality, we calculate the spectral function of the heavy vector mesons with the presence of an intense magnetic field in a hot and dense medium.
Yan-Qing Zhao, Defu Hou
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Journal of Geophysical Research: Space Physics, Volume 131, Issue 3, March 2026.Abstract Cherenkov detectors have been used in space for decades to measure Galactic Cosmic Rays (GCRs), Solar Energetic Particles (SEPs) and trapped particles. We present proof‐of‐concept GRAS/Geant4 simulations to both show that a cubic fused silica Cherenkov detector with SiPM in LEO has a good sensitivity to SEP and GCR protons as a function of cut‐
C. S. W. Davis +6 more
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Mass splitting and spin alignment for $$\phi $$ ϕ mesons in a magnetic field in NJL model
European Physical Journal C: Particles and FieldsBased on the Nambu–Jona–Lasinio (NJL) model, we develop a framework for calculating the spin alignment of vector mesons and applied it to study $$\phi $$ ϕ mesons in a magnetic field.
Xin-Li Sheng +3 more
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The decomposition of neutron-antineutron oscillation operators
Journal of High Energy Physics, 2023 We study the systematic decomposition of the dimension nine neutron-antineutron oscillation operators at tree and one-loop levels. We discuss the topologies’ generation and the assignment of the chiral quarks.
Shao-Long Chen, Yu-Qi Xiao
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Large leptonic flavour mixing and the mass spectrum of leptons [PDF]
Physics Letters B, 1998 Latex 10 ...
Fritzsch, Harald, Xing, Zhi-zhong
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