PREDICTIONS IN SU(5) SUPERGRAVITY GRAND UNIFICATION WITH PROTON STABILITY AND RELIC DENSITY CONSTRAINTS

被引:163
作者
NATH, P
ARNOWITT, R
机构
[1] NORTHEASTERN UNIV,DEPT PHYS,BOSTON,MA 02115
[2] SUPERCOND SUPER COLLIDER LAB,PHYS RES DIV,DALLAS,TX 75237
[3] TEXAS A&M UNIV SYST,CTR THEORET PHYS,DEPT PHYS,COLL STN,TX 77843
关键词
D O I
10.1103/PhysRevLett.70.3696
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
It is shown that in the physically interesting domain of the parameter space of SU(5) supergravity grand unified theory. the Higgs-boson and Z poles dominate the annihilation of the lightest supersymmetric particle. Here the naive analyses on thermal averaging breaks down and formulas are derived which give a rigorous treatment over the poles. These results are then used to show that there exist significant domains in the parameter space where the constraints of proton stability and cosmology are simultaneously satisfied. New upper limits on light particle masses are obtained.
引用
收藏
页码:3696 / 3699
页数:4
相关论文
共 29 条
[1]   SUPERSYMMETRIC MASS-SPECTRUM IN SU(5) SUPERGRAVITY GRAND UNIFICATION [J].
ARNOWITT, R ;
NATH, P .
PHYSICAL REVIEW LETTERS, 1992, 69 (05) :725-728
[2]   NUCLEON DECAY BRANCHING RATIOS IN SUPERGRAVITY SU(5) GUTS [J].
ARNOWITT, R ;
CHAMSEDDINE, AH ;
NATH, P .
PHYSICS LETTERS B, 1985, 156 (3-4) :215-219
[3]   COSMOLOGICAL CONSTRAINTS AND SU(5) SUPERGRAVITY GRAND UNIFICATION [J].
ARNOWITT, R ;
NATH, P .
PHYSICS LETTERS B, 1993, 299 (1-2) :58-63
[4]   LOCALLY SUPERSYMMETRIC GRAND UNIFICATION [J].
CHAMSEDDINE, AH ;
ARNOWITT, R ;
NATH, P .
PHYSICAL REVIEW LETTERS, 1982, 49 (14) :970-974
[5]   SOFTLY BROKEN SUPERSYMMETRY AND SU(5) [J].
DIMOPOULOS, S ;
GEORGI, H .
NUCLEAR PHYSICS B, 1981, 193 (01) :150-162
[6]   NEUTRALINO RELIC DENSITY IN MINIMAL N=1 SUPERGRAVITY [J].
DREES, M ;
NOJIRI, MM .
PHYSICAL REVIEW D, 1993, 47 (02) :376-408
[7]   RADIATIVE SYMMETRY-BREAKING IN MINIMAL N = 1 SUPERGRAVITY WITH LARGE YUKAWA COUPLINGS [J].
DREES, M ;
NOJIRI, MM .
NUCLEAR PHYSICS B, 1992, 369 (1-2) :54-98
[8]   A PHENOMENOLOGICAL COMPARISON OF CONVENTIONAL AND SUPERSYMMETRIC GUTS [J].
ELLIS, J ;
NANOPOULOS, DV ;
RUDAZ, S .
NUCLEAR PHYSICS B, 1982, 202 (01) :43-62
[9]   SUPERSYMMETRIC RELICS FROM THE BIG-BANG [J].
ELLIS, J ;
HAGELIN, JS ;
NANOPOULOS, DV ;
OLIVE, K ;
SREDNICKI, M .
NUCLEAR PHYSICS B, 1984, 238 (02) :453-476
[10]   CONSTRAINT ON THE PHOTINO MASS FROM COSMOLOGY [J].
GOLDBERG, H .
PHYSICAL REVIEW LETTERS, 1983, 50 (19) :1419-1422