Results 41 to 50 of about 200,828 (293)
European Physical Journal C: Particles and Fields, 2017 The rare baryonic decay $$\Lambda _b\rightarrow \Lambda (\rightarrow p\pi ^-)\mu ^+\mu ^-$$ Λ b → Λ ( → p π - ) μ + μ - provides valuable complementary information compared to the corresponding mesonic $$b\rightarrow s\mu ^+\mu ^-$$ b → s μ + μ ...
Quan-Yi Hu, Xin-Qiang Li, Ya-Dong Yang
doaj +1 more source
Freeze-in Dirac neutrinogenesis: thermal leptonic CP asymmetry
European Physical Journal C: Particles and Fields, 2020 We present a freeze-in realization of the Dirac neutrinogenesis in which the decaying particle that generates the lepton-number asymmetry is in thermal equilibrium.
Shao-Ping Li +3 more
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Rare top-quark decays $$t \rightarrow cg(g)$$ t → c g ( g ) in the aligned two-Higgs-doublet model
European Physical Journal C: Particles and Fields, 2022 We update the Standard Model (SM) predictions for the branching ratios of the rare top-quark decays $$t \rightarrow cg(g)$$ t → c g ( g ) , and evaluate the maximum rates that can be reached in the aligned as well as in the four conventional two-Higgs ...
Fang-Min Cai +3 more
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Radiative lepton decays and the substructure of leptons [PDF]
Proceedings of International Europhysics Conference on High Energy Physics — PoS(hep2001), 2001 5 pages, to appear in the proceedings of the International Europhysics Conference on High Energy Physics, July 12-18 2001 ...
openaire +3 more sources
European Physical Journal C: Particles and Fields, 2022 We extend the contents of the standard model (SM) by introducing TeV-scale scalar leptoquarks to generate neutrino masses and explain some current observed deviations from the SM predictions, including the anomalous magnetic moments of charged leptons ...
Shao-Long Chen +2 more
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Michel parameters in radiative muon decay [PDF]
, 2016 Radiative muon and tau lepton decays are described within the model-independent approach with the help of generalized Michel parameters. The exact dependence on charged lepton masses is taken into account.
Arbuzov, A. B., Kopylova, T. V.
core +2 more sources
Physics Letters B, 1996 It is assumed that three lepton families $( _e, e)$, $( _ , )$, $( _ , )$ carry charges, which are sources of electronic, muonic and tauonic massless vector particles, respectively. Various manifestations of these hypothetical photons are discussed.
openaire +3 more sources
Axionlike Particles, Lepton-Flavor Violation, and a New Explanation of a_{μ} and a_{e}. [PDF]
Physical Review Letters, 2019 Axionlike particles (ALPs) with lepton-flavor-violating couplings can be probed in exotic muon and tau decays. The sensitivity of different experiments depends strongly on the ALP mass and its couplings to leptons and photons.
M. Bauer +4 more
semanticscholar +1 more source
Interpreting hints for lepton flavor universality violation [PDF]
, 2017 We interpret the recent hints for lepton flavor universality violation in rare $B$ meson decays. Based on a model-independent effective Hamiltonian approach, we determine regions of new physics parameter space that give a good description of the ...
W. Altmannshofer, P. Stangl, D. Straub
semanticscholar +1 more source
Current status and muon g − 2 explanation of lepton portal dark matter [PDF]
Journal of High Energy Physics, 2020 In this paper, we summarize phenomenology in lepton portal dark matter (DM) models, where DM couples to leptons and extra leptons/sleptons. There are several possible setups: a DM field is either a complex/real scalar or a Dirac/Majorana fermion, and ...
Junichiro Kawamura +2 more
semanticscholar +1 more source