antineutrino


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antineutrino

[′an·tē·nü¦trē·nō]
(particle physics)
The antiparticle to the neutrino; it has zero mass, spin ½, and positive helicity; there are two antineutrinos, one associated with electrons and one with muons.
References in periodicals archive ?
As they travel, the neutrinos and antineutrinos change their "flavor" from muon to electron.
Analyzing more than 300,000 electron antineutrinos (the antimatter counterpart of the electron neutrino) collected from the Daya Bay nuclear reactors during 217 days of operation, researchers found 6 percent fewer of the particles than predicted by the standard particle physics model.
If neutrinos and their antimatter equivalent, antineutrinos, oscillate differently, this could provide the explanation.
Indeed, the opposite positions of electrons and positrons on the diagonals of the cube star correspond to their opposite polarizations, since it is the same interaction that turns the electron into its neutrino and the positron into its antineutrino.
KamLAND was specifically designed to study antineutrinos.
1919), set up the necessary detection system and snared a few antineutrinos.
121802) On the plus side , they did discover more antineutrinos (the antimatter equivalent of neutrinos) with energies of about 5 megaelectronvolts than theoretical models predict - although what this "bump" signifies is still not entirely clear.
Through this measurement the background noise to the antineutrino reactor signal can be more accurately estimated, potentially improving the determination of the reactor operating status and power level.
It is the distance the largest neutrino detector KamLAND (Kamioka Liquid Scintillator Anti-Neutrino Detector, Honshu island, Japan) has registered a decrease of the neutrino flow in the nuclear reactor antineutrino experiments [8]); see Figure 2 (the data are taken from [8]).
25]) antineutrinos race away from Earth and into space.
v] are the electron and antineutrino energies, and Q is the neutron-proton mass difference: 1293 keV.
org/2016/08/t2k-cp-violation-search-results-presented-at-ichep-2016/) announced that they had detected evidence of such matter-antimatter asymmetry - in this particular case, an asymmetry between neutrino and antineutrino oscillation.