Finite grand unified theories and the quark mixing matrix

被引：38

作者：

Babu, KS ^{[1
]}

Enkhbat, T ^{[1
]}

Gogoladze, I ^{[1
]}

机构：

[1] Oklahoma State Univ, Dept Phys, Stillwater, OK 74078 USA

来源：

PHYSICS LETTERS B | 2003年 / 555卷 / 3-4期

关键词：

D O I：

10.1016/S0370-2693(03)00054-6

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In N = 1 super-Yang-Mills theories, under certain conditions satisfied by the spectrum and the Yukawa couplings, the beta functions will vanish to all orders in perturbation theory. We address the generation of realistic quark mixing angles and masses in such finite grand unified theories. Working in the context of finite SUSY SU(5), we present several examples with realistic quark mixing matrices. Non-Abelian discrete symmetries are found to be important in satisfying the conditions for finiteness. Our realistic examples are based on permutation symmetries and the tetrahedral symmetry A(4). These examples enable us to address questions such as the decay rate of the proton in finite GUTs. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：238 / 247

页数：10

共 49 条

[1]

[Anonymous], 1987, MOD PHYS LETT

[2] THE NEUTRINO AS THE SUPERSYMMETRIC PARTNER OF THE MAJORON [J].

AULAKH, CS ;

MOHAPATRA, RN .

PHYSICS LETTERS B, 1982, 119 (1-3) :136-140

[3] Higgs-mediated B0 → μ+ μ- in minimal supersymmetry [J].

Babu, KS ;

Kolda, C .

PHYSICAL REVIEW LETTERS, 2000, 84 (02) :228-231

[4]

BABU KS, 1988, OSURN202

[5] Finite supersymmetric threshold corrections to CKM matrix elements in the large tan beta regime [J].

Blazek, T ;

Raby, S ;

Pokorski, S .

PHYSICAL REVIEW D, 1995, 52 (07) :4151-4158

[6] Lattice simulations of the strange quark mass and Fritzsch texture [J].

Brahmachari, B .

PHYSICS LETTERS B, 2000, 486 (1-2) :118-124

[7] PROTON LIFETIME PROBLEM IN FINITE GRAND UNIFIED THEORIES [J].

DESHPANDE, NG ;

HE, XG ;

KEITH, E .

PHYSICS LETTERS B, 1994, 332 (1-2) :88-92

[8] Can supersymmetric loops correct the fermion mass relations in SU(5)? [J].

Diaz-Cruz, L ;

Murayama, H ;

Pierce, A .

PHYSICAL REVIEW D, 2002, 65 (07) :750111-750115

[9] FINITE N=1 SUPERSYMMETRIC GRAND UNIFIED THEORIES [J].

ERMUSHEV, AV ;

KAZAKOV, DI ;

TARASOV, OV .

NUCLEAR PHYSICS B, 1987, 281 (1-2) :72-84

[10] Textured pure phase mass matrices [J].

Fishbane, PM ;

Kaus, P .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1997, 75 (01) :1-7

← 1 2 3 4 5 →