Determination of the string scale in D-brane scenarios and dark matter implications

被引:30
作者
Cerdeño, DG
Gabrielli, E
Khalil, S
Muñoz, C
Torrente-Lujan, E
机构
[1] Univ Autonoma Madrid, Dept Fis Teor C11, E-28049 Madrid, Spain
[2] Ain Shams Univ, Fac Sci, Cairo 11566, Egypt
[3] Univ Sussex, Ctr Theoret Phys, Brighton BN1 9QJ, E Sussex, England
[4] Univ Helsinki, Inst Phys, FIN-00014 Helsinki, Finland
[5] Univ Autonoma Madrid, Dept Fis Teor C16, E-28049 Madrid, Spain
关键词
D-branes; string scale; soft terms; dark matter;
D O I
10.1016/S0550-3213(01)00159-6
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
We analyze different phenomenological aspects of D-brane constructions. First, we obtain that scenarios with the gauge group and particle content of the supersymmetric standard model lead naturally to intermediate values for the string scale, in order to reproduce the value of gauge couplings deduced from experiments, Second, the soft terms, which turn out to be generically non-universal, and Yukawa couplings of these scenarios are studied in detail, Finally, using these soft terms and the string scale as the initial scale for their running, we compute the neutralino-nucleon cross section, In particular we And regions in the parameter space of D-brane scenarios with cross sections in the range of 10(-6)-10(-5) ph, i.e., where current dark matter experiments are sensitive. For instance, this can be obtained for tan beta > 5. (C) 2001 Elsevier Science B,V. All rights reserved.
引用
收藏
页码:231 / 258
页数:28
相关论文
共 74 条
[11]   New dimensions at a millimeter to a fermi and superstrings at a TeV [J].
Antoniadis, I ;
Arkani-Hamed, N ;
Dimopoulos, S ;
Dvali, G .
PHYSICS LETTERS B, 1998, 436 (3-4) :257-263
[12]   The hierarchy problem and new dimensions at a millimeter [J].
Arkani-Hamed, N ;
Dimopoulos, S ;
Dvali, G .
PHYSICS LETTERS B, 1998, 429 (3-4) :263-272
[13]  
Arnowitt R, 1999, PHYS REV D, V60, DOI 10.1103/PhysRevD.60.044002
[14]  
ARNOWITT R, HEPPH0005154
[15]   Sparticle spectrum and dark matter in type I string theory with an intermediate scale [J].
Bailin, D ;
Kraniotis, GV ;
Love, A .
PHYSICS LETTERS B, 2000, 491 (1-2) :161-171
[16]  
BAILIN D, HEPTH0011289
[17]   Phenomenology of low quantum gravity scale models [J].
Benakli, K .
PHYSICAL REVIEW D, 1999, 60 (10)
[18]   A D=4 N=1 orbifold of type I strings [J].
Berkooz, M ;
Leigh, RG .
NUCLEAR PHYSICS B, 1997, 483 (1-2) :187-208
[19]   Search for WIMP annual modulation signature: Results from DAMA/NaI-3 and DAMA/NaI-4 and the global combined analysis [J].
Bernabei, R ;
Belli, P ;
Cerulli, R ;
Montecchia, F ;
Amato, M ;
Ignesti, G ;
Incicchitti, A ;
Prosperi, D ;
Dai, CJ ;
He, HL ;
Kuang, HH ;
Ma, JM .
PHYSICS LETTERS B, 2000, 480 (1-2) :23-31
[20]   Compatibility of the new DAMA/NaI data on an annual modulation effect in WIMP direct search with a relic neutralino in supergravity schemes [J].
Bottino, A ;
Donato, F ;
Fornengo, N ;
Scopel, S .
PHYSICAL REVIEW D, 1999, 59 (09)