Results 31 to 40 of about 68,795 (225)
Lepton Number Violation: Seesaw Models and Their Collider Tests [PDF]
Frontiers of Physics, 2017 The Majorana nature of neutrinos is strongly motivated from the theoretical and phenomenological point of view. A plethora of neutrino mass models, known collectively as Seesaw models, exist that could generate both a viable neutrino mass spectrum and ...
Yi-Fu Cai, T. Han, Tong Li, R. Ruiz
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Search for medium response to jet quenching via hadron chemistry around the quenched jets [PDF]
EPJ Web of ConferencesWe present a unique signal of medium response to jet quenching: the enhancement of baryon-to-meson ratios for associated particles at intermediate transverse momentum around the triggered quenched jets.
Luo Ao +4 more
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Review of lepton universality tests in B decays [PDF]
Journal of Physics G: Nuclear and Particle Physics, 2018 Several measurements of tree- and loop-level b-hadron decays performed in the recent years hint at a possible violation of Lepton Universality. This article presents an experimental and theoretical overview of the current status of the field.
S. Bifani +3 more
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Two paths towards precision at a very high energy lepton collider [PDF]
Journal of High Energy Physics, 2020 We illustrate the potential of a very high energy lepton collider (from 10 to 30 TeV center of mass energy) to explore new physics indirectly in the vector boson fusion double Higgs production process and in direct diboson production at high energy ...
D. Buttazzo, R. Franceschini, A. Wulzer
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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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CP asymmetry in the angular distribution of τ → KS πν τ decays
Journal of High Energy Physics, 2020 In this work, we study the C P asymmetry in the angular distribution of τ → K S πν τ decays, taking into account the known C P violation in K 0 − K ¯ 0 $$ {K}^0-{\overline{K}}^0 $$ mixing. It is pointed out for the first time that, once the well-measured
Feng-Zhi Chen +2 more
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Probing new physics in class-I B-meson decays into heavy-light final states
Journal of High Energy Physics, 2021 With updated experimental data and improved theoretical calculations, several significant deviations are being observed between the Standard Model predictions and the experimental measurements of the branching ratios of B ¯ s 0 → D s ∗ + L ...
Fang-Min Cai +3 more
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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
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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
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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
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