By Felix Boehm, Petr Vogel
Neutrinos play a decisive half in nuclear and common particle physics, in addition to in astrophysics and cosmology. simply because they have interaction so weakly with topic, a few of their easy homes, comparable to mass cost conjugation symmetry, are principally unknown. those matters are thought of intimately through authors, who additionally talk about such subject matters as neutrino blending, neutrino decay, neutrino oscillations, double beta decay and similar principles. actual innovations are under pressure, and either theoretical tools and experimental concepts are offered. This moment version comprises an increased insurance of recent experimental effects and up to date theoretical advances. within the intervening years because the first version, many then unresolved difficulties resembling tritium beta decay and reactor neutrino oscillations were clarified. This version additionally provides extended assurance of sun and supernova neutrinos.
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Additional info for Physics of Massive Neutrinos, Second edition
For FA the characteristic paramIn muon capture one often uses a dimensionless quantity gP - m^Fp. 9m2 (for protons) Eq. 4. 06)2 GeV2 (Baker et al. 036)2 GeV2. 1b) (see Walecka 75; Gaisser & O'Connell 86) 2£Iv/Mpsin2(9/2) Fl+FfrQ2Fl]cos2(ty2) + 2\F} Mp sin2(6/2) co2sin2(9/2)] 2 sin(9/2). 71. The coupling constant is G = GpcosGc =10~5M^"2. 11) where Mz (M/) is the mass of the initial (final) nucleon. 10) by integrating over all angles) for the electron and muon neutrinos and antineutrinos. The ± sign associated with the vector-axial-vector interference lowers the cross section for the antineutrino induced reaction, compared with the neutrino induced reaction.
75, will be lowered if the neutrino mass is finite. No such reduction was seen, and an upper limit of mVx < 250 MeV could be established. 19) carried out by Blocker et al. (82) at SLAC with the Mark II detector at the electron-positron storage ring SPEAR. 19) in flight depends on the masses mT, mn, and mVt . Knowing the former two, the authors derived, from an endpoint measurement, mVT < 250 MeV. Somewhat improved limits have been found in a study of the rare tau decay branches, x —• K+K~K±K°VX, and x — K+K~n+vx (Matteuzzi et al.
87, 91) makes use of an ironfree double focusing spectrometer (radius of the focal plane = 75 cm) at the INS in Tokyo. It is conceptually similar to that used in Berkvist's experiment. To increase acceptance, use is made of a large source as well as a large detector, both segmented. The detector is a position sensitive proportional chamber consisting of six independent cells. The overall spectrometer energy resolution was 15 eV. 109Cd served as a reference source and its KLL Auger electrons were used for calibration.
Physics of Massive Neutrinos, Second edition by Felix Boehm, Petr Vogel