INFLATION INDUCED SUSY BREAKING AND FLAT VACUUM DIRECTIONS

被引:40
作者
DVALI, G
机构
[1] IST NAZL FIS NUCL, SEZ PISA, I-56100 PISA, ITALY
[2] GEORGIAN ACAD SCI, INST PHYS, TBILISI 380077, GEORGIA
关键词
D O I
10.1016/0370-2693(95)00503-D
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We discuss how the inflation induced supersymmetry breaking affects the Bat directions of SUSY vacua. We show that: under general assumptions ail gauge nonsinglet fields, parameterizing flat directions (and in particular squarks and sleptons), get large radiative masses which are related to the value of the Hubble constant (H) and to the expectation value of the inflaton held. This mass (typically similar to H) is of ''non-gravitational'' origin and does not vanishes in the global SUSY limit Large radiative corrections are induced by F-term (or D-term) density which dominates the inflationary universe and strongly breaks supersymmetry. In such theories it is difficult to treat squarks and sleptons as a light fields in the inflationary period. In the generic supergravity theories all flat directions, including moduli, are getting curvature of order H. However, for the gauge-nonsinglet Bat directions radiative contribution to the curvature (induced by renormalizable gauge interactions) may be dominant.
引用
收藏
页码:78 / 84
页数:7
相关论文
共 33 条
[1]   NATURAL INFLATION - PARTICLE PHYSICS MODELS, POWER-LAW SPECTRA FOR LARGE-SCALE STRUCTURE, AND CONSTRAINTS FROM THE COSMIC BACKGROUND EXPLORER [J].
ADAMS, FC ;
BOND, JR ;
FREESE, K ;
FRIEMAN, JA ;
OLINTO, AV .
PHYSICAL REVIEW D, 1993, 47 (02) :426-455
[2]   A NEW MECHANISM FOR BARYOGENESIS [J].
AFFLECK, I ;
DINE, M .
NUCLEAR PHYSICS B, 1985, 249 (02) :361-380
[3]   COSMOLOGICAL IMPLICATIONS OF DYNAMICAL SUPERSYMMETRY BREAKING [J].
BANKS, T ;
KAPLAN, DB ;
NELSON, AE .
PHYSICAL REVIEW D, 1994, 49 (02) :779-787
[4]  
BANKS T, RU9492 PREPR
[5]   GAUGE-MODELS WITH SPONTANEOUSLY BROKEN LOCAL SUPERSYMMETRY [J].
BARBIERI, R ;
FERRARA, S ;
SAVOY, CA .
PHYSICS LETTERS B, 1982, 119 (4-6) :343-347
[6]   COSMOLOGICAL DIFFICULTIES OF N=1 SUPERGRAVITY MODELS WITH SLIDING SCALES [J].
BERTOLAMI, O .
PHYSICS LETTERS B, 1988, 209 (2-3) :277-282
[7]   LOCALLY SUPERSYMMETRIC GRAND UNIFICATION [J].
CHAMSEDDINE, AH ;
ARNOWITT, R ;
NATH, P .
PHYSICAL REVIEW LETTERS, 1982, 49 (14) :970-974
[8]   RADIATIVE-CORRECTIONS AS ORIGIN OF SPONTANEOUS SYMMETRY BREAKING [J].
COLEMAN, S ;
WEINBERG, E .
PHYSICAL REVIEW D, 1973, 7 (06) :1888-1910
[9]   FALSE VACUUM INFLATION WITH EINSTEIN GRAVITY [J].
COPELAND, EJ ;
LIDDLE, AR ;
LYTH, DH ;
STEWART, ED ;
WANDS, D .
PHYSICAL REVIEW D, 1994, 49 (12) :6410-6433
[10]   COSMOLOGICAL PROBLEMS FOR THE POLONYI POTENTIAL [J].
COUGHLAN, GD ;
FISCHLER, W ;
KOLB, EW ;
RABY, S ;
ROSS, GG .
PHYSICS LETTERS B, 1983, 131 (1-3) :59-64