Phenomenological consequences of right-handed down squark mixings

被引:9
作者
Chua, CK [1 ]
Hou, WS [1 ]
机构
[1] Natl Taiwan Univ, Dept Phys, Taipei 10764, Taiwan
关键词
D O I
10.1103/PhysRevLett.86.2728
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The mixings of d(R) quarks, hidden from view in the standard model (SM), are naturally the largest if one has an Abelian flavor symmetry. With supersymmetry (SUSY) their effects can surface via (d) over tilde (R) squark loops. Squark and gluino masses are at TeV scale, but they can still induce effects comparable to SM in B-d (or B-s) mixings, while D-0 mixing could be close to recent hints from data. In general, CP phases would be different from SM, as may be indicated by recent B factory data. Presence of nonstandard soft SUSY breakings with large tan beta could enhance b --> d gamma (or s gamma) transitions.
引用
收藏
页码:2728 / 2731
页数:4
相关论文
共 26 条
[1]   Mixing-induced CP asymmetries in radiative B decays in and beyond the standard model [J].
Atwood, D ;
Gronau, M ;
Soni, A .
PHYSICAL REVIEW LETTERS, 1997, 79 (02) :185-188
[2]   QCD corrections to flavor-changing neutral currents in the supersymmetric standard model [J].
Bagger, JA ;
Matchev, KT ;
Zhang, RJ .
PHYSICS LETTERS B, 1997, 412 (1-2) :77-85
[3]   Lessons from CLEO and FOCUS measurements of D0-(D0)over-bar mixing parameters [J].
Bergmann, S ;
Grossman, Y ;
Ligeti, Z ;
Nir, Y ;
Petrov, AA .
PHYSICS LETTERS B, 2000, 486 (3-4) :418-425
[4]   EFFECTS OF SUPERGRAVITY-INDUCED ELECTROWEAK BREAKING ON RARE B-DECAYS AND MIXINGS [J].
BERTOLINI, S ;
BORZUMATI, F ;
MASIERO, A ;
RIDOLFI, G .
NUCLEAR PHYSICS B, 1991, 353 (03) :591-649
[5]   THEORETICAL UNCERTAINTIES AND PHENOMENOLOGICAL ASPECTS OF B-]X(S)GAMMA DECAY [J].
BURAS, AJ ;
MISIAK, M ;
MUNZ, M ;
POKORSKI, S .
NUCLEAR PHYSICS B, 1994, 424 (02) :374-398
[6]  
CARAVAGLIOS F, HEPPH0002171
[7]  
CHANKOWSKI PH, 1998, PERSPECTIVES SUPERSY
[8]  
Chua CK, 1999, PHYS REV D, V60, DOI 10.1103/PhysRevD.60.014003
[9]  
DIAZCRUZ JL, HEPPH9906330
[10]   YUKAWA MATRICES FROM A SPONTANEOUSLY BROKEN ABELIAN SYMMETRY [J].
DUDAS, E ;
POKORSKI, S ;
SAVOY, CA .
PHYSICS LETTERS B, 1995, 356 (01) :45-55