Proton decay in intersecting D-brane models

被引:80
作者
Klebanov, IR [1 ]
Witten, E [1 ]
机构
[1] Inst Adv Study, Princeton, NJ 08540 USA
基金
美国国家科学基金会;
关键词
D O I
10.1016/S0550-3213(03)00410-3
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 proton decay via dimension-six operators in certain GUT-like models derived from Type IIA otientifolds with D6-branes. The amplitude is parametrically enhanced by a factor of alpha(GUT)(-1/3) CeGUT relative to the corresponding result in four-dimensional GUTs. Nonetheless, even assuming a plausible enhancement from the threshold corrections, we find little overall enhancement of the proton decay rate from dimension-six operators, so that the predicted lifetime from this mechanism remains close to 10(36) years. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码:3 / 20
页数:18
相关论文
共 44 条
[1]  
ABEL SA, HEPTH0303124
[2]   Intersecting brane worlds [J].
Aldazabal, G ;
Franco, S ;
Ibáñz, LE ;
Rabadán, R ;
Uranga, AM .
JOURNAL OF HIGH ENERGY PHYSICS, 2001, (02) :XXLVII-32
[3]   D=4 chiral string compactifications from intersecting branes [J].
Aldazabal, G ;
Franco, S ;
Ibáñez, LE ;
Rabadán, R ;
Uranga, AM .
JOURNAL OF MATHEMATICAL PHYSICS, 2001, 42 (07) :3103-3126
[4]   Type-I strings on magnetised orbifolds and brane transmutation [J].
Angelantonj, C ;
Antoniadis, I ;
Dudas, E ;
Sagnotti, A .
PHYSICS LETTERS B, 2000, 489 (1-2) :223-232
[5]  
Antoniadis I, 2001, J HIGH ENERGY PHYS
[6]  
BABU KS, HEPPH9606215
[7]   Proton decay in minimal supersymmetric SU(5) [J].
Bajc, B ;
Perez, PF ;
Senjanovic, G .
PHYSICAL REVIEW D, 2002, 66 (07)
[8]  
Bajc B., HEPPH0210374
[9]   Branes intersecting at angles [J].
Berkooz, M ;
Douglas, MR ;
Leigh, RG .
NUCLEAR PHYSICS B, 1996, 480 (1-2) :265-278
[10]  
Bershadsky M., 1987, International Journal of Modern Physics A, V2, P165, DOI 10.1142/S0217751X87000053