Results 81 to 90 of about 6,824 (208)
Oscillation of heavy sterile neutrino in decay of $B \to μe π$
, 2015 18 pages,7 figures; minor improvements in presentation; the last paragraph in Sec.III is new; new Sec.
Cvetic, Gorazd +3 more
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Testing Heavy Neutral Leptons in Cosmic Ray Beam Dump experiments
Journal of High Energy Physics, 2023 In this work, we discuss the possibility to test Heavy Neutral Leptons (HNLs) using “Cosmic Ray Beam Dump” experiments. In analogy with terrestrial beam dump experiments, where a beam first hits a target and is then absorbed by a shield, we consider high-
Oliver Fischer +2 more
doaj +1 more source
Nearly degenerate heavy sterile neutrinos in cascade decay: Mixing and oscillations [PDF]
Physical Review D, 2014 Some extensions beyond the Standard Model propose the existence of nearly degenerate heavy sterile neutrinos. If kinematically allowed these can be resonantly produced and decay in a cascade to common final states. The common decay channels lead to mixing of the heavy sterile neutrino states and interference effects.
openaire +2 more sources
Radiative Majorana neutrino masses in a parity solution to the strong CP problem
Journal of High Energy PhysicsThe strong CP problem is solved in Parity symmetric theories, with the electroweak gauge group containing SU(2) L × SU(2) R broken by the minimal set of Higgs fields. Neutrino masses may be explained by adding the same number of gauge singlet fermions as
Lawrence J. Hall +2 more
doaj +1 more source
Supernovae and sterile neutrinos
, 2011 Motivated by the recent hints for sterile neutrinos from reactor anomalies, we discuss active-sterile conversions in an electron-capture supernova using a (2 active + 1 sterile) scenario.
Tamborra, Irene
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Constraining the SMEFT extended with sterile neutrinos at FCC-ee
Journal of High Energy PhysicsWe investigate how extensions of the Standard Model (SM) involving heavy neutral leptons (HNLs) can be probed at FCC-ee, the proposed high-energy circular e + e − collider.
Patrick D. Bolton +4 more
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Heavy Sterile Neutrinos and Neutrinoless Double Beta Decay
, 2012 6 pages, 4 figures; contribution to Moriond EW 2012 ...
Mitra, Manimala +2 more
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, 2019 International audienceWe address the phenomenology of light sterile neutrinos, with an emphasis on short-baseline neutrino oscillations. After reviewing the observed short-baseline neutrino oscillation anomalies, we discuss the global fit of the data and
Giunti, Carlo, Lasserre, T.
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Sterile neutrinos in string derived models [PDF]
, 2018 The MiniBooNE collaboration recently reported further evidence for the existence of sterile neutrinos, implying substantial mixing with the left-handed active neutrinos and at a comparable mass scale.
Alon E. Faraggi, Faraggi, AE
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Long-lived HNLs via ALP portal at the LHC
Journal of High Energy PhysicsHeavy neutral leptons (HNLs) and axion-like particles (ALPs) are both considered well-motivated candidates for beyond the standard model (BSM) physics. If ALPs with sizable couplings to gluons exist, they will be abundantly produced at the LHC. Therefore,
Rebeca Beltrán +3 more
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