SHOULD SQUARKS BE DEGENERATE

被引：366

作者：

NIR, Y ^{[1
]}

SEIBERG, N ^{[1
]}

机构：

[1] RUTGERS UNIV,DEPT PHYS & ASTRON,PISCATAWAY,NJ 08855

来源：

PHYSICS LETTERS B | 1993年 / 309卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(93)90942-B

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

For generic squark masses, box diagrams with squarks and gluinos give unacceptably large contributions to neutral meson (K, B and D) mixing. The standard solution to this problem is to assume that squarks are degenerate to a very good approximation. We suggest an alternative mechanism to suppress squark contributions to flavor changing neutral currents: the alignment of quark with squark mass matrices. This mechanism arises naturally in the framework of abelian horizontal symmetries.

引用

页码：337 / 343

页数：7

共 26 条

[1] BAGGER J, 1984, 5TH P WORKSH GRAND U
[2] A REALISTIC THEORY OF FAMILY UNIFICATION
BAGGER, JA
DIMOPOULOS, S
MASSO, E
RENO, MH
[J]. NUCLEAR PHYSICS B, 1985, 258 (3-4) : 565 - 600
[3] THE WEAK MIXING ANGLES IN GAUGE-MODELS WITH HORIZONTAL SYMMETRY - A NEW APPROACH TO QUARK AND LEPTON MASSES
BEREZHIANI, ZG
[J]. PHYSICS LETTERS B, 1983, 129 (1-2) : 99 - 102
[4] HORIZONTAL SYMMETRY AND QUARK-LEPTON MASS-SPECTRUM - THE SU(5)SU(3)H MODEL
BEREZHIANI, ZG
[J]. PHYSICS LETTERS B, 1985, 150 (1-3) : 177 - 181
[5] QUARK MASSES AND MIXING ANGLES FROM UNIVERSAL SEESAW MECHANISM
DAVIDSON, A
RANFONE, S
WALI, KC
[J]. PHYSICAL REVIEW D, 1990, 41 (01): : 208 - 218
[6] DAVIDSON A, 1984, PHYS REV D, V29, P1505
[7] DAVIDSON A, 1988, PHYS REV LETT, V60, P1313
[8] SOFT SUSY BREAKING TERMS IN STRINGY SCENARIOS - COMPUTATION AND PHENOMENOLOGICAL VIABILITY
DECARLOS, B
CASAS, JA
MUNOZ, C
[J]. PHYSICS LETTERS B, 1993, 299 (3-4) : 234 - 246
[9] DECARLOS B, CERNTH643692
[10] NATURAL GENERATION OF FERMION MASSES
DIMOPOULOS, S
[J]. PHYSICS LETTERS B, 1983, 129 (06) : 417 - 428

← 1 2 3 →