Results 21 to 30 of about 42,326 (173)
Probing HNL‐ALP Couplings at Colliders
Fortschritte der Physik, Volume 71, Issue 4-5, May 2023., 2023 Abstract Axion‐like particles (ALPs) and heavy neutral leptons (HNLs) are both well‐motivated extensions of the Standard Model. As ALPs couple to on‐shell fermions proportionally to their masses, processes involving both types of particles may give rise, for TeV HNLs, to relevant phenomenology at colliders.
Arturo de Giorgi +2 more
wiley +1 more source
Who's Afraid of the Supersymmetric Dark? The Standard Model vs Low‐Energy Supergravity
Fortschritte der Physik, Volume 70, Issue 7-8, August 2022., 2022 Abstract Use of supergravity equations in astronomy and late‐universe cosmology is often criticized on three grounds: (i) phenomenological success usually depends on the supergravity form for the scalar potential applying at the relevant energies; (ii$ii$) the low‐energy scalar potential is extremely sensitive to quantum effects involving very massive ...
C.P. Burgess, F. Quevedo
wiley +1 more source
Constraining super-light sterile neutrinos at Borexino and KamLAND
Journal of High Energy Physics, 2022 The presence of a super-light sterile neutrino can lead to a dip in the survival probability of solar neutrinos, and explain the suppression of the upturn in the low energy solar neutrino data.
Zikang Chen +3 more
doaj +1 more source
Heavy Neutral Leptons from Stopped Muons and Pions
Journal of High Energy Physics, 2023 Stopped muons, which are generic in pion-at-rest experiments, can shed light on heavy neutral leptons (HNLs) in unexplored parameter spaces. If the HNL is lighter than the muon, the HNL can be produced from decays of muons and pions.
Yohei Ema +3 more
doaj +1 more source
Michel parameters in the presence of massive Dirac and Majorana neutrinos
Journal of High Energy Physics, 2022 We analyse the effects of Dirac and Majorana neutrinos on leptonic decays of muon and tau leptons using the most general four-lepton effective interaction Hamiltonian of dimension six.
Juan Manuel Márquez +2 more
doaj +1 more source
Heavy neutrinos at future linear e+e − colliders
Journal of High Energy Physics, 2022 Neutrinos are among the most mysterious particles in nature. Their mass hierarchy and oscillations, as well as their antiparticle properties, are being intensively studied in experiments around the world.
Krzysztof Mękała +2 more
doaj +1 more source
Nuclear Effects and CP Sensitivity at DUNE
Advances in High Energy Physics, Volume 2020, Issue 1, 2020., 2020 The precise measurement of neutrino‐oscillation parameters is one of the highest priorities in neutrino‐oscillation physics. To achieve the desired precision, it is necessary to reduce the systematic uncertainties related to neutrino energy reconstruction.
Srishti Nagu +4 more
wiley +1 more source
DUNE Prospect for Leptophobic Dark Matter
Advances in High Energy Physics, Volume 2020, Issue 1, 2020., 2020 Highly energetic proton/electron beam fixed‐target experiments extend an opportunity to probe the sub‐GeV dark matter and associated interactions. In this work, we have explored the sensitivity of DUNE (Deep Underground Neutrino Experiment) for sub‐GeV leptophobic dark matter, i.e., this dark matter barely couples with the leptons.
Sabeeha Naaz +3 more
wiley +1 more source
Probing Heavy Sterile Neutrinos at Ultrahigh Energy Neutrino Telescopes via the Dipole Portal [PDF]
, 2022 The question of how heavy a sterile neutrino can be probed in experiments leads us to investigate the Primakoff production of heavy sterile neutrinos up to PeV masses from ultrahigh-energy neutrinos via the magnetic dipole portal. Despite the suppression
Lindner, Manfred +11 more
core +1 more source
Heavy sterile neutrinos and supernova explosions [PDF]
, 2008 We consider sterile neutrinos with rest masses ∼0.2 GeV and with vacuum flavor mixing angles θ2>10−8 for mixing with τ-neutrinos, or 10 ...
Petraki, Kalliopi +5 more
core +1 more source