Moduli-induced gravitino problem

被引：179

作者：

Endo, Motoi

Hamaguchi, Koichi

Takahashi, Fuminobu

机构：

[1] DESY, D-22607 Hamburg, Germany

[2] Univ Tokyo, Inst Cosm Ray Res, Chiba 2778582, Japan

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 21期

关键词：

D O I：

10.1103/PhysRevLett.96.211301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We investigate the cosmological moduli problem by studying a modulus decay in detail and find that the branching ratio of the gravitino production is generically of O(0.01-1), which causes another cosmological disaster. Consequently, the cosmological moduli problem cannot be solved simply by making the modulus mass heavier than 100 TeV. We also illustrate our results by explicitly calculating the branching ratio into the gravitinos in the mixed modulus-anomaly model.

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页数：4

相关论文

共 52 条

[1] A NEW MECHANISM FOR BARYOGENESIS [J].

AFFLECK, I ;

DINE, M .

NUCLEAR PHYSICS B, 1985, 249 (02) :361-380

[2] Cosmological gravitino problem in gauge-mediated supersymmetry breaking models [J].

Asaka, T ;

Hamaguchi, K ;

Suzuki, K .

PHYSICS LETTERS B, 2000, 490 (1-2) :136-146

[3]

Bagger JA, 2000, J HIGH ENERGY PHYS

[4] COSMOLOGICAL IMPLICATIONS OF DYNAMICAL SUPERSYMMETRY BREAKING [J].

BANKS, T ;

KAPLAN, DB ;

NELSON, AE .

PHYSICAL REVIEW D, 1994, 49 (02) :779-787

[5] Dilaton destabilization at high temperature [J].

Buchmüller, W ;

Hamaguchi, K ;

Lebedev, O ;

Ratz, A .

NUCLEAR PHYSICS B, 2004, 699 (1-2) :292-308

[6] HIERARCHICAL SUPERSYMMETRY BREAKING AND DYNAMIC DETERMINATION OF COMPACTIFICATION PARAMETERS BY NONPERTURBATIVE EFFECTS [J].

CASAS, JA ;

LALAK, Z ;

MUNOZ, C ;

ROSS, GG .

NUCLEAR PHYSICS B, 1990, 347 (1-2) :243-269

[7] Phenomenology of mixed modulus-anomaly mediation in fluxed string compactifications and brane models [J].

Choi, K ;

Jeong, KS ;

Okumura, K .

JOURNAL OF HIGH ENERGY PHYSICS, 2005, (09) :1007-1029

[8] Soft supersymmetry breaking in KKLT flux compactification [J].

Choi, K ;

Falkowski, A ;

Nilles, HP ;

Olechowski, M .

NUCLEAR PHYSICS B, 2005, 718 (1-2) :113-133

[9] Stability of flux compactifications and the pattern of supersymmetry breaking [J].

Choi, K ;

Falkowski, A ;

Nilles, HP ;

Olechowski, M ;

Pokorski, S .

JOURNAL OF HIGH ENERGY PHYSICS, 2004, (11) :1837-1853

[10] Q-BALLS [J].

COLEMAN, S .

NUCLEAR PHYSICS B, 1985, 262 (02) :263-283

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