Neutrino mixing and the pattern of supersymmetry breaking

被引：92

作者：

Buchmüller, W ^{[1
]}

Delepine, D ^{[1
]}

Vissani, F ^{[1
]}

机构：

[1] DESY, D-2000 Hamburg, Germany

来源：

PHYSICS LETTERS B | 1999年 / 459卷 / 1-3期

关键词：

D O I：

10.1016/S0370-2693(99)00634-6

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study the implications of a large nu(mu)-nu(tau) mixing angle on lepton flavour violating radiative transitions in supersymmetric extensions of the standard model. The transition rates are calculated to leading order in epsilon, the parameter which characterizes the flavour mixing. The uncertainty of the predicted rates is discussed in detail. For models with modular invariance the branching ratio BR( mu --> e gamma) mostly exceeds the experimental upper limit. In models with radiatively induced flavour mixing the predicted range includes the upper limit, if the Yukawa couplings in the lepton sector are large, as favoured by Yukawa coupling unification. (C) 1999 Elsevier Science B.V. All rights reserved.

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页码：171 / 178

页数：8

相关论文

共 23 条

[1] SIGNALS FOR SUPERSYMMETRIC UNIFICATION [J].

BARBIERI, R ;

HALL, LJ .

PHYSICS LETTERS B, 1994, 338 (2-3) :212-218

[2] VIOLATIONS OF LEPTON FLAVOR AND CP IN SUPERSYMMETRIC UNIFIED THEORIES [J].

BARBIERI, R ;

HALL, L ;

STRUMIA, A .

NUCLEAR PHYSICS B, 1995, 445 (2-3) :219-251

[3] QUARK, LEPTON AND NEUTRINO MASSES IN GRAND UNIFIED THEORIES WITH LOCAL GENERATION GROUP [J].

BIJNENS, J ;

WETTERICH, C .

NUCLEAR PHYSICS B, 1987, 292 (02) :443-460

[4] TOWARDS A THEORY OF SOFT TERMS FOR THE SUPERSYMMETRIC STANDARD MODEL [J].

BRIGNOLE, A ;

IBANEZ, LE ;

MUNOZ, C .

NUCLEAR PHYSICS B, 1994, 422 (1-2) :125-171

[5] Quark lepton mass hierarchies and the baryon asymmetry [J].

Buchmüller, W ;

Yanagida, T .

PHYSICS LETTERS B, 1999, 445 (3-4) :399-402

[6] Review of Particle Physics [J].

The European Physical Journal C - Particles and Fields, 1998, 3 (1-4) :1-783

[7] Soft scalar masses in supergravity with horizontal U(1)(x) gauge symmetry [J].

Dudas, E ;

Pokorski, S ;

Savoy, CA .

PHYSICS LETTERS B, 1996, 369 (3-4) :255-261

[8] FLAVOR-CHANGING NEUTRAL INTERACTIONS IN BROKEN SUPERSYMMETRIC THEORIES [J].

ELLIS, J ;

NANOPOULOS, DV .

PHYSICS LETTERS B, 1982, 110 (01) :44-48

[9] HIERARCHY OF QUARK MASSES, CABIBBO ANGLES AND CP VIOLATION [J].

FROGGATT, CD ;

NIELSEN, HB .

NUCLEAR PHYSICS B, 1979, 147 (3-4) :277-298

[10] Evidence for oscillation of atmospheric neutrinos [J].

Fukuda, Y ;

Hayakawa, T ;

Ichihara, E ;

Inoue, K ;

Ishihara, K ;

Ishino, H ;

Itow, Y ;

Kajita, T ;

Kameda, J ;

Kasuga, S ;

Kobayashi, K ;

Kobayashi, Y ;

Koshio, Y ;

Miura, M ;

Nakahata, M ;

Nakayama, S ;

Okada, A ;

Okumura, K ;

Sakurai, N ;

Shiozawa, M ;

Suzuki, Y ;

Takeuchi, Y ;

Totsuka, Y ;

Yamada, S ;

Earl, M ;

Habig, A ;

Kearns, E ;

Messier, MD ;

Scholberg, K ;

Stone, JL ;

Sulak, LR ;

Walter, CW ;

Goldhaber, M ;

Barszczxak, T ;

Casper, D ;

Gajewski, W ;

Halverson, PG ;

Hsu, J ;

Kropp, WR ;

Price, LR ;

Reines, F ;

Smy, M ;

Sobel, HW ;

Vagins, MR ;

Ganezer, KS ;

Keig, WE ;

Ellsworth, RW ;

Tasaka, S ;

Flanagan, JW ;

Kibayashi, A .

PHYSICAL REVIEW LETTERS, 1998, 81 (08) :1562-1567