نتایج جستجو برای: neutrino detection
تعداد نتایج: 586258 فیلتر نتایج به سال:
Future cosmological data may be sensitive to the effects of a finite neutrino mass even as small as the ∼0.05 eV lower limit guaranteed by neutrino oscillation experiments. We show that a cosmological detection of neutrino mass in agreement with expectations would improve by many orders of magnitude the existing limits on neutrino lifetime, and as a consequence on neutrino secret interactions w...
Neutrinos have been a source of excitement lately. While the neutrino mixing has been expected, its pattern has taken us by surprise. The first evidence of physics beyond the standard model is here and more excitement is likely on the way.. Fermilab has a unique opportunity to take a lead in the neutrino physics in the next decade or so. Our recent major investments put us in an envi-able posit...
We present the signatures and prospects for the indirect detection of a Dirac righthanded neutrino dark matter candidate in neutrino telescopes, cosmic positron experiments and gamma-ray telescopes. An example of such a dark matter candidate can be found in extra-dimensional models. In some constructions, Kaluza–Klein states with the gauge quantum numbers of a right-handed neutrino can have siz...
We present a search, using KamLAND, a kiloton-scale anti-neutrino detector, for low-energy anti-neutrino events that were coincident with the gravitational-wave (GW) events GW150914 and GW151226, and the candidate event LVT151012. We find no inverse beta-decay neutrino events within ±500 s of either GW signal. This non-detection is used to constrain the electron anti-neutrino fluence and the to...
The definition and derivation of flavor neutrino states in the framework of standard Quantum Field Theory is reviewed, clarifying some subtle points. It is shown that a flavor neutrino state that describes a neutrino produced or detected in a charged-current weak interaction process depends on the process under consideration and is appropriate for the description of neutrino oscillations as wel...
The cosmic neutrino background (CNB) is a definite prediction of the standard cosmological model and its direct discovery would represent milestone in cosmology physics. In this work, we consider capture relic neutrinos on tritium target as possible way to detect CNB, aimed for by PTOLEMY project. Crucial parameters measurement are absolute mass ${m}_{\ensuremath{\nu}}$ local number density ${n...
The program of reconstruction of the neutrino mass and flavor spectrum is outlined and the present status of research is summarized. We describe the role of future solar and atmospheric neutrino experiments, detection of the Galactic supernovae and double beta decay searches in accomplishing this program. The LSND result and four neutrino mass spectra are considered in connection with recent se...
Abstract The Jiangmen Underground Neutrino Observatory (JUNO) will be the largest ever built liquid scintillator detector for neutrino physics. JUNO is a 20 kton detector, equipped with 20012 large PMTs and 25600 small PMTs. It sensitive to various sources give unique contribution observation of all-flavor flux from Galactic core collapse supernova (CCSN). can detects neutrinos emitted by next ...
Detection of 5 events by the Liquid Scintillation Detector (LSD) on February, 23, 1987 was recently interpreted as a detection of the electron neutrino flux from the first stage of the two-stage Supernova collapse [1][2]. We show that, if neutrino mass hierarchy is normal, such interpretation excludes values of neutrino mixing angle θ13 larger than 3 · 10 , independently of the particular Super...
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