Long-Lived Slepton in the Coannihilation Region and Measurement of Lepton Flavour Violation at LHC

被引：0

作者：

Kaneko, S. ^{[1
,2
]}

Sato, J. ^{[3
]}

Shimomura, T. ^{[4
]}

Vives, O. ^{[4
]}

Yamanaka, M. ^{[3
]}

机构：

[1] Univ Valencia, CSIC, Inst Fis Corpuscular, Campus Paterna,Apt 22085, E-46071 Valencia, Spain

[2] CFTP, Inst Superior Tecnico, Dept Fis, P-1049001 Lisbon, Portugal

[3] Saitama Univ, Dept Phys, Saitama 3388570, Japan

[4] Univ Valencia, CSIC, IFIC, Dept Fis Teor, E-46100 Burjassot, Spain

来源：

DISCRETE 08: SYMPOSIUM ON PROSPECTS IN THE PHYSICS OF DISCRETE SYMMETRIES | 2009年 / 171卷

关键词：

NUCLEOSYNTHESIS; BENCHMARKS; LIGHT;

D O I：

10.1088/1742-6596/171/1/012092

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

When the mass difference between the lightest slepton and the lightest neutralino is smaller than the tau mass, the lifetime of the lightest slepton in the constrained Minimal Supersymmetric Standard Model (MSSM) increases in many orders of magnitude with respect to typical lifetimes of other supersymmetric particles. In a general MSSM, the lifetime of the lightest slepton is inversely proportional to the square of the intergenerational mixing in the slepton mass matrices. Such a long-lived slepton would produce a distinctive signature at LHC and a measurement of its lifetime would be relatively simple. Therefore, the long-lived slepton scenario offers an excellent opportunity to study lepton flavour violation at ATLAS and CMS detectors in the LHC and an improvement of the leptonic mass insertion bounds by more than five orders of magnitude would be possible.

引用

页数：10