Results 121 to 130 of about 41,177 (205)

Measuring lepton number violation in heavy neutral lepton decays at the future muon collider

Journal of High Energy Physics
The future muon collider has the potential to discover feebly interacting particles in a wide range of masses above the electroweak scale. It is particularly suitable to search for heavy neutral leptons (HNLs), as their production cross section σ ∼ m W −
Oleksii Mikulenko, Mariia Marinichenko
doaj   +1 more source

Testing the heavy decaying sterile neutrino hypothesis at the DUNE near detector

Journal of High Energy Physics
A bstract One of the most convincing explanations of the LSND and MiniBooNE anomalies relies on a heavy, mostly sterile neutrino with a small muon neutrino component, which decays to an electron neutrino and an invisible light scalar field. We investigate
Sabya Sachi Chatterjee, Stéphane Lavignac, O. G. Miranda   +2 more
openaire   +2 more sources

Sterile Neutrinos [PDF]

, 2011
In following we explain the necessity of existence of neutrinos and explain the theoretical basis of neutrino oscillations in vacuum and matter.
Liluashvili, A.
core  

Coherent collision integrals for neutrino transport equations

Journal of High Energy Physics
We present quantum kinetic equations for neutrinos and derive Feynman rules for computing scattering rates involving coherent states. Our rules encompass both flavour- and particle-antiparticle coherence and allow writing down the scattering matrix ...
Kimmo Kainulainen, Harri Parkkinen
doaj   +1 more source

Novel signatures of heavy neutral lepton at muon collider

Journal of High Energy Physics
The Higgs-strahlung process ℓ + ℓ − → Zh is one of the most important production channels of the standard model Higgs boson h at the lepton colliders. The cross section reaches the maximum value slightly above the threshold s ~ m Z + m h $$ \sqrt{s}\sim {
Xue-Xin Zhang, Zhi-Long Han, Fei Huang, Honglei Li   +3 more
doaj   +1 more source

Superluminal velocity through near-maximal neutrino oscillations or by being off shell

, 2012
Recently it was suggested that the observation of superluminal neutrinos by the OPERA collaboration may be due to group velocity effects resulting from close-to-maximal oscillation between neutrino mass eigenstates, in analogy to known effects in optics.
Morris, Tim R.
core   +1 more source

Neutrino properties from muonium-antimuonium mixing

Journal of High Energy Physics
The nature of neutrino mass — whether neutrinos are Dirac or Majorana particles — remains one of the central open questions in particle physics. While observation of neutrinoless double beta decay would confirm the Majorana case, the absence of a signal ...
Mitrajyoti Ghosh, Kevin Liguori, Takemichi Okui, Kohsaku Tobioka   +3 more
doaj   +1 more source

Threshold effects on the massless neutrino in the canonical seesaw mechanism

Journal of High Energy Physics
In this work, we revisit the one-loop renormalization group equations (RGEs) among non-degenerate seesaw scales, i.e., threshold effects in the canonical seesaw mechanism, which have been obtained for more than two decades.
Di Zhang
doaj   +1 more source

U(1)' Mediated Decays of Heavy Sterile Neutrinos in MiniBooNE

, 2018
Presentation from PONDD 2018 session The MiniBooNE Low-Energy ...
openaire   +1 more source

Quantum transport theory for neutrinos with flavor and particle-antiparticle mixing

Journal of High Energy Physics
We derive quantum kinetic equations for mixing neutrinos including consistent forward scattering terms and collision integrals for coherent neutrino states.
Kimmo Kainulainen, Harri Parkkinen
doaj   +1 more source