Direct detection of supersymmetric particles in neutrino telescopes

被引:31
作者
Albuquerque, Ivone F. M.
Burdman, Gustavo
Chacko, Z.
机构
[1] Univ Sao Paulo, Inst Fis, BR-01498 Sao Paulo, Brazil
[2] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA
来源
PHYSICAL REVIEW D | 2007年 / 75卷 / 03期
关键词
D O I
10.1103/PhysRevD.75.035006
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
In supersymmetric theories where the lightest supersymmetric particle is the gravitino the next to lightest supersymmetric particle is typically a long-lived charged slepton. In this paper, following our earlier proposal [I. Albuquerque, G. Burdman, and Z. Chacko, Phys. Rev. Lett. 92, 221802 (2004).], we perform a detailed study of the production of pairs of these particles induced by the interactions of high energy cosmic neutrinos with nucleons in the Earth, their propagation through the Earth, and finally their detection in neutrino telescopes. We investigate the charged slepton energy loss in detail and establish that the relatively small cross section for the production of supersymmetric particles is partially compensated for by the very long range of these heavy particles. The signal, consisting of two parallel charged tracks emerging from the Earth, is characterized by a track separation of a few hundred meters. We perform a careful analysis of the main background, coming from direct di-muon production, and show that it can be separated from the signal due to its characteristically smaller track separation. We conclude that neutrino telescopes will complement collider searches in the determination of the supersymmetry breaking scale, and may even provide the first evidence for supersymmetry at the weak scale.
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页数:11
相关论文
共 34 条
[21]   Supergravity with a gravitino lightest supersymmetric particle [J].
Feng, JL ;
Su, SF ;
Takayama, F .
PHYSICAL REVIEW D, 2004, 70 (07)
[22]   SuperWIMP gravitino dark matter from slepton and sneutrino decays [J].
Feng, JL ;
Su, SF ;
Takayama, F .
PHYSICAL REVIEW D, 2004, 70 (06) :14
[23]   Neutrino interactions at ultrahigh energies [J].
Gandhi, R ;
Quigg, C ;
Reno, MH ;
Sarcevic, I .
PHYSICAL REVIEW D, 1998, 58 (09)
[24]   Ultrahigh-energy neutrino interactions [J].
Gandhi, R ;
Quigg, C ;
Reno, MH ;
Sarcevic, I .
ASTROPARTICLE PHYSICS, 1996, 5 (02) :81-110
[25]   Theories with gauge-mediated supersymmetry breaking [J].
Giudice, GF ;
Rattazzi, R .
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1999, 322 (06) :419-499
[26]  
Grieder PKF, 2001, NUOVO CIMENTO C, V24, P771
[27]   Muon stopping power and range tables 10 MeV-100 TeV [J].
Groom, DE ;
Mokhov, NV ;
Striganov, SI .
ATOMIC DATA AND NUCLEAR DATA TABLES, 2001, 78 (02) :183-356
[28]  
Halzen F, 2004, J COSMOL ASTROPART P
[29]  
KELNER SR, 1968, SOV J NUCL PHYS+, V7, P237
[30]  
Kokoulin R. P., 1970, Acta Physica Academiae Scientiarum Hungaricae, V29, P277