ERASURE AND REGENERATION OF THE PRIMORDIAL BARYON ASYMMETRY BY SPHALERONS

被引:69
作者
CLINE, JM
KAINULAINEN, K
OLIVE, KA
机构
[1] School of Physics and Astronomy, University of Minnesota, Minneapolis
关键词
D O I
10.1103/PhysRevLett.71.2372
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We show that a cosmological baryon asymmetry generated at the grand unified theory scale, which would be destroyed at lower temperatures by sphalerons and possible new B- or L-violating effects, can naturally be preserved by an asymmetry in the number of right-handed electrons. This results in a significant softening of previously derived baryogenesis-based constraints on the strength of exotic B- or L-violating interactions.
引用
收藏
页码:2372 / 2375
页数:4
相关论文
共 16 条
[1]   THE HEIDELBERG-MOSCOW DOUBLE BETA-DECAY EXPERIMENT WITH ENRICHED GE-76 - 1ST RESULTS [J].
BALYSH, A ;
BECK, M ;
BELYAEV, ST ;
BOCKHOLT, J ;
DEMEHIN, A ;
ECHTERNACH, J ;
GUROV, A ;
HEUSSER, G ;
HIRSCH, M ;
KLAPDORKLEINGROTHAUS, HV ;
KONDRATENKO, I ;
LEBEDEV, VI ;
MAIER, B ;
MULLER, A ;
PETRY, F ;
PIEPKE, A ;
SCHMIDT-ROHR, U ;
STRECKER, H ;
ZUBER, K .
PHYSICS LETTERS B, 1992, 283 (1-2) :32-36
[2]   IMPROVED SEARCH FOR MASSIVE NEUTRINOS IN PI+-]E+NU-DECAY [J].
BRITTON, DI ;
AHMAD, S ;
BRYMAN, DA ;
BURNHAM, RA ;
CLIFFORD, ETH ;
KITCHING, P ;
KUNO, Y ;
MACDONALD, JA ;
NUMAO, T ;
OLIN, A ;
POUTISSOU, JM .
PHYSICAL REVIEW D, 1992, 46 (03) :R885-R887
[3]  
CAMPBELL BA, 1991, PHYS LETT B, V256, P457, DOI 10.1016/0370-2693(91)91795-W
[4]   ON THE BARYON, LEPTON-FLAVOR AND RIGHT-HANDED ELECTRON ASYMMETRIES OF THE UNIVERSE [J].
CAMPBELL, BA ;
DAVIDSON, S ;
ELLIS, J ;
OLIVE, KA .
PHYSICS LETTERS B, 1992, 297 (1-2) :118-124
[5]  
CAMPBELL BA, IN PRESS NUCL PHYS B
[6]   On B and L violation in the laboratory in the light of cosmological and astrophysical constraints [J].
Campbell, Bruce A. ;
Davidson, Sacha ;
Ellis, John ;
Olive, Keith A. .
ASTROPARTICLE PHYSICS, 1992, 1 (01) :77-97
[7]  
CLINE JD, IN PRESS
[8]  
CLINE JM, 1993, UMNTH112993 REP
[9]  
DREINER H, 1992, OUTP9208P REP
[10]   CONSTRAINTS ON THE BARYOGENESIS SCALE FROM NEUTRINO MASSES [J].
FISCHLER, W ;
GIUDICE, GF ;
LEIGH, RG ;
PABAN, S .
PHYSICS LETTERS B, 1991, 258 (1-2) :45-48