Updating neutrino magnetic moment constraints
نویسندگان
چکیده
منابع مشابه
Neutrino Magnetic Moment
Current experimental and observational limits on the neutrino magnetic moment are reviewed. Implications of the recent results from the solar and reactor neutrino experiments for the value of the neutrino magnetic moment are discussed. It is shown that spin-flavor precession in the Sun is suppressed.
متن کاملPhoton-Neutrino Interactions in Magnetic Field through Neutrino Magnetic Moment
We study the neutrino-photon processes like γγ → νν̄ in the presence of uniform external magnetic field for the case when neutrinos can couple to the electromagnetic field directly through their dipole magnetic moment and obtain the stellar energy loss. The process would be of special relevance in astrophysical situations where standard left-handed neutrinos are trapped and the right handed neut...
متن کاملNeutrino Magnetic Moment Behaviour in a
We have shown in [1] that a neutrino magnetic moment form factor µ ν (q 2) could be considerably amplified at low momentum transfer, q 2 ≤ m 2 N , at the cost of introducing an extra light neutral fermion N with mass m N and nonzero magnetic moment. It was assumed that the magnetic moment of N would originate in a renormalizable way at a heavy scale M. While the enhancement of the neutrino magn...
متن کاملNeutrino magnetic moment signatures in the supernova neutrino signal
It is known that if neutrino is a Dirac fermion with magnetic moment, then νL → νR → νL transition of supernova neutrinos may occur. The first stage of such transition is due to the neutrino spin flip inside the hot dense supernova core, while the second one – due to the neutrino spin precession in the galactic magnetic field on the way from the supernova to terrestrial detectors. This can resu...
متن کاملConstraining neutrino magnetic moment with solar and reactor neutrino data
We use solar neutrino data to derive stringent bounds on Majorana neutrino transition moments (TMs). Such moments, if present, would contribute to the neutrino– electron scattering cross section and hence alter the signal observed in Super-Kamiokande. Using the latest solar neutrino data, combined with the results of the reactor experiment KamLAND, we perform a simultaneous fit of the oscillati...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physics Letters B
سال: 2016
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2015.12.011