1H 1NN B- DECAY (613.9 S) 05NDS 200601
1H H TYP=FUL$AUT=BALRAJ SINGH$CIT=NDS 106, 601 (2005)$CUT=31-Oct-2005$
1H c Parameters for free neutron decay (see complete details in 2004Ei01):
1H c g{-A}/g{-V}=-1.2695 {I29} (2004Ei01).
1H c |b Asymmetry parameter (neutron spin, electron momentum)
1H 2c A=-0.1173 {I13} (2004Ei01). In 2005Se01, -0.1189 {I7} is favored.
1H c Antineutrino Asymmetry parameter (neutron spin, antineutrino momentum)
1H 2c B=0.983 {I4} (2004Ei01).
1H c Electron-antineutrino angular-correlation coefficient
1H 2c a=-0.103 {I4} (2004Ei01).
1H c Triple correlation coefficient (component of neutron spin
1H 2c perpendicular to the decay plane in |b decay)
1H 3c D=-0.0006 {I10} (2004Ei01).
1H c Phase of g{-A} relative to g{-V}, |f{-AV}=180.08|' {I10} (2004Ei01).
1H c Measurements:
1H c Limit on T (time-reversal) violation in free neutron decay: 2005Bo35,
1H 2c 2004So03 (polarized neutron), 2003So25 (measured electron and proton
1H 3c energies, electron-proton coin), 2000Jo03 (polarized neutron)
1H c Beta asymmetry parameter: 2002Ab14, 2000Re02, 1997Li01, 1997Ab32,
1H 2c 1995Sc20, 1991Er04, 1990Er10, 1989Do17, 1988Kl01, 1986Bo04, 1984Bo28,
1H 3c 1979Er08, 1975Kr18, 1971Er10, 1969Ch05
1H c g{-A}/g{-V} from measurement of Both P-odd correlations:
1H 2c 2001Mo41
1H c Antineutrino asymmetry parameter: 1998Se11, 1995Ku30, 1994Ku46,
1H 2c 1970Er10, 1970Er07, 1970Ch08, 1969Ch05, 1960Cl06
1H c Electron-antineutrino angular-correlation coefficient: 2005By03,
1H 2c 2004So03, 2002By02, 2000Da01, 1978St30, 1975Do19, 1967Gr32
1H c Triple correlation coefficient: 1989Vo12, 1984Bo29, 1978Er06,
1H 2c 1976St24, 1974St09, 1974Er09, 1970Er08, 1960Cl06
1H c Proton-electron correlations from polarized neutron decay:
1H 2c 2000Jo03, 2000Li42
1H c Radiative decay mode, upper limit: 2005By04, 2002Be79
1H c Neutrino-antineutrino oscillation time, lower limit: 2002Ch48
1NN P 0.0 1/2+ 613.9 S 6 782.347 1
1NN cP T$613.9 s {I6} (from evaluation of 2004Ei01). References for
1NN2cP measurements are listed under 'Adopted levels' for neutron.
1NN cP QP$ From 2003Au03. From adopted (by 2004Ei01) masses of neutron,
1NN2cP proton and electron and conversion factor from a.m.u. scale to
1NN3cP keV as adopted by 2004Ei01, Q{+-}=782.33279 keV {I7}
1H N 1.0 1.0
1H L 0.0 1/2+
1H B 100 3.0170 5
1H S B EAV= 301.37