Quintessence and spontaneous leptogenesis

被引：79

作者：

Li, MZ ^{[1
]}

Wang, XL ^{[1
]}

Feng, B ^{[1
]}

Zhang, XM ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China

来源：

PHYSICAL REVIEW D | 2002年 / 65卷 / 10期

关键词：

D O I：

10.1103/PhysRevD.65.103511

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We propose in this paper a scenario of spontaneous baryogenesis in cosmological models of quintessence by introducing a derivative coupling of the quintessence scalar Q to the baryon current J(B)(mu) or the current of the baryon number minus lepton number J(B-L)(mu). We find that with a dimension-5 operator partial derivative(mu)QJ(B-L)(mu) suppressed by the Planck mass M-pl or the grand unification scale M-GUT, baryon number asymmetry n(B)/ssimilar to10(-10) can be naturally explained via leptogenesis. We study also the isocurvature baryon number fluctuation generated in our model.

引用

页数：5

共 42 条

[1] Attractors and isocurvature perturbations in quintessence models [J].

Abramo, LR ;

Finelli, F .

PHYSICAL REVIEW D, 2001, 64 (08)

[2] Phenomenology of a realistic accelerating Universe using only Planck-scale physics [J].

Albrecht, A ;

Skordis, C .

PHYSICAL REVIEW LETTERS, 2000, 84 (10) :2076-2079

[3]

[Anonymous], NUCL PHYS B

[4] COSMIC NO-HAIR THEOREMS AND INFLATION [J].

BARROW, JD .

PHYSICS LETTERS B, 1987, 187 (1-2) :12-16

[5] Cosmological constant versus quintessence [J].

Binétruy, P .

INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS, 2000, 39 (07) :1859-1875

[6] Models of dynamical supersymmetry breaking and quintessence [J].

Binetruy, P .

PHYSICAL REVIEW D, 1999, 60 (06)

[7] Exhaustive study of cosmic microwave background anisotropies in quintessential scenarios [J].

Brax, P ;

Martin, J ;

Riazuelo, A .

PHYSICAL REVIEW D, 2000, 62 (10) :1-16

[8] Constraining isocurvature perturbations with cosmic microwave background polarization [J].

Bucher, M ;

Moodley, K ;

Turok, N .

PHYSICAL REVIEW LETTERS, 2001, 87 (19) :191301/1-191301/4

[9]

BUCHMULLER W, HEPPH0101102

[10]

Caldwell RR, 2000, BRAZ J PHYS, V30, P215, DOI 10.1590/S0103-97332000000200002

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