Results 31 to 40 of about 211,027 (308)
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
semanticscholar +1 more source
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
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
Softly broken lepton numbers and maximal neutrino mixing [PDF]
, 2001 We consider lepton mixing in an extension of the Standard Model with three right-handed neutrino singlets. We require that the three lepton numbers L_e, L_\mu, and L_\tau be separately conserved in the Yukawa couplings, and we assume that they are softly
Grimus, W., Lavoura, L.
core +2 more sources
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
doaj +1 more source
Universality of Quark-Lepton Mass Matrix [PDF]
, 2013 The recently observed lepton mixing angle $\theta_{13}$ of the MNS mixing matrix is well incorporated in a universal mixing hypothesis between quark and lepton sectors.
Fukuyama, Takeshi, Nishiura, Hiroyuki
core +1 more source
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
doaj +1 more source
Charged-lepton mixing and lepton flavor violation
Physics Letters B, 2015 We present a model for calculating charged-lepton mixing matrices. These matrices are an essential ingredient for predicting lepton flavor-violating rates in the lepton number nonuniversal models recently proposed to explain anomalies in B-meson decays. The model is based on work on "constrained flavor breaking" by Appelquist, Bai and Piai relating the
Guadagnoli, Diego, Lane, Kenneth
openaire +4 more sources
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
semanticscholar +1 more source
Jet tomography in high-energy nuclear collisions [PDF]
EPJ Web of Conferences, 2019 When an energetic parton traversing the QCD medium, it may suffer multiple scatterings and lose energy. This jet quenching phenomenon may lead to the suppression of leading hadron productions as well as medium modifications of full jet observables in ...
Zhang Ben-Wei +4 more
doaj +1 more source