Results 31 to 40 of about 42,326 (173)
Displaced vertex searches for sterile neutrinos at future lepton colliders [PDF]
, 2016 We investigate the sensitivity of future lepton colliders to displaced vertices from the decays of long-lived heavy (almost sterile) neutrinos with electroweak scale masses and detectable time of flight. As future lepton colliders we consider the FCC-ee,
Eros Cazzato +5 more
core +1 more source
Investigating Sterile Neutrino Flux in the Solar Neutrino Data
Advances in High Energy Physics, Volume 2019, Issue 1, 2019., 2019 There are compelling evidences for the existence of a fourth degree of freedom of neutrinos, i.e., sterile neutrino. In the recent studies the role of sterile component of neutrinos has been found to be crucial, not only in particle physics, but also in astrophysics and cosmology.
Ankush +4 more
wiley +1 more source
Advances in High Energy Physics, Volume 2019, Issue 1, 2019., 2019 Very recently novel implementation of type‐II seesaw mechanism for neutrino mass has been proposed in SU(5) grand unified theory with a number of desirable new physical phenomena beyond the standard model. Introducing heavy right‐handed neutrinos and extra fermion singlets, in this work we show how the type‐I seesaw cancellation mechanism works in this
M. K. Parida +2 more
wiley +1 more source
Investigating the Sterile Neutrino Parameters with QLC in 3 + 1 Scenario
Advances in High Energy Physics, Volume 2019, Issue 1, 2019., 2019 In the scenario with four generation quarks and leptons and using a 3 + 1 neutrino model having one sterile and the three standard active neutrinos with a 4 × 4 unitary transformation matrix, UPMNS4, we perform a model‐based analysis using the latest global data and determine bounds on the sterile neutrino parameters i.e., the neutrino mixing angles ...
Gazal Sharma +2 more
wiley +1 more source
Naturally light sterile neutrinos
, 1998 A simple model to accomodate light sterile neutrinos naturally with largemixing with the usual neutrinos has been proposed. The standard model gaugegroup is extended to include an $SU(2)_S$ gauge symmetry.
Utpal, Sarkar
core +1 more source
Advances in High Energy Physics, Volume 2019, Issue 1, 2019., 2019 Inspired by the experimental anomalies in neutrino physics and recent oscillation data from short baseline and another neutrino experiment, the realization of one extra neutrino flavor seems to be favoring. This extra flavor may change the observable, |mββ|, of current data taking and next‐generation (ββ) 0ν‐decay experiments aim to probe and possibly ...
Jaydip Singh, Sally Seidel
wiley +1 more source
Relativistic and spectator effects in leptogenesis with heavy sterile neutrinos
, 2020 For leptogenesis with heavy sterile neutrinos above the electroweak scale, asymmetries produced at early times (in the relativistic regime) are relevant, if they are protected from washout.
Klose, Philipp +2 more
core +1 more source
U(1)' mediated decays of heavy sterile neutrinos in MiniBooNE [PDF]
, 2019 The MiniBooNE low-energy excess is a long-standing problem which has received further confirmation with a reanalysis using newly collected data, with the anomaly now at the 4.8σ level.
Ross-Lonergan, Mark +5 more
core +2 more sources
Annalen der Physik, Volume 537, Issue 12, December 2025.A set of particle representations, familiar from the Standard Model, collectively form a superalgebra. Those representations mirroring the behaviour of the Standard Model's gauge bosons, and three generations of fermions, are each included in this algebra, with exception only to those representations involving the top quark.
N. Furey
wiley +1 more source
Heavy Sterile Neutrino in Dark Matter Searches
Advances in High Energy Physics, Volume 2018, Issue 1, 2018., 2018 Sterile neutrinos are possible dark matter candidates. We examine here possible detection mechanisms, assuming that the neutrino has a mass of about 50 keV and couples to the ordinary neutrino. Even though this neutrino is quite heavy, it is nonrelativistic with a maximum kinetic energy of 0.1 eV.
Paraskevi C. Divari +2 more
wiley +1 more source