Small neutrino masses from supersymmetry breaking

被引：168

作者：

Arkani-Hamed, N ^{[1
]}

Hall, L

Murayama, H

Smith, D

Weiner, N

机构：

[1] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, Ernest Orlando Lawrence Berkeley Natl Lab, Theoret Phys Grp, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW D | 2001年 / 64卷 / 11期

关键词：

D O I：

10.1103/PhysRevD.64.115011

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

An alternative to the conventional seesaw mechanism is proposed to explain the origin of small neutrino masses in supersymmetric theories. The masses and couplings of the right-handed neutrino field are suppressed by supersymmetry breaking, in a way similar to the suppression of the Higgs doublet mass mu. New mechanisms for light Majorana and Dirac neutrinos arise. depending on the degree of suppression. Super-partner phenomenology is greatly altered by the presence of weak scale right-handed sneutrinos, which may have a coupling to a Higgs boson and a left-handed sneutrino. The sneutrino spectrum and couplings are quite unlike the conventional case-the lightest sneutrino can be the dark matter and predictions are given for event rates at upcoming halo dark matter direct detection experiments. Higgs boson decays and search strategies are changed. Copious Higgs boson production at hadron colliders can result from cascade decays of squarks and gluinos.

引用

页数：15

共 59 条

[21] CHIRAL SYMMETRY AND THE HIGGS-BOSON NUCLEON COUPLING [J].

CHENG, TP .

PHYSICAL REVIEW D, 1988, 38 (09) :2869-2874

[22] Supersymmetric neutrino masses and mixing with R-parity violation [J].

Chun, EJ ;

Kang, SK ;

Kim, CW ;

Lee, UW .

NUCLEAR PHYSICS B, 1999, 544 (1-2) :89-103

[23] Intermediate scales, μ parameter, and fermion masses from string models [J].

Cleaver, G ;

Cvetic, M ;

Espinosa, JR ;

Everett, L ;

Langacker, P .

PHYSICAL REVIEW D, 1998, 57 (05) :2701-2715

[24]

*CMS COLL, 9438 CERNLHCC

[25] Virtual LSPs at e+ e- colliders [J].

Datta, A ;

Raychaudhuri, S .

EUROPEAN PHYSICAL JOURNAL C, 1998, 1 (1-2) :375-393

[26] Less minimal supersymmetric standard model -: art. no. 095008 [J].

De Gouvêa, A ;

Friedland, A ;

Murayama, H .

PHYSICAL REVIEW D, 1999, 59 (09)

[27] Minimal supergravity with R-parity breaking [J].

Diaz, MA ;

Romao, JC ;

Valle, JWF .

NUCLEAR PHYSICS B, 1998, 524 (1-2) :23-40

[28]

Djouadi A, 1999, EUR PHYS J C, V10, P27

[29] Impact of the SUSY decays on the search for the MSSM Higgs bosons at the LHC [J].

Djouadi, A .

MODERN PHYSICS LETTERS A, 1999, 14 (05) :359-368

[30]

Dvali G, 1998, J HIGH ENERGY PHYS

← 1 2 3 4 5 6 →