Study of the slepton non-universality at the CERN Large Hadron Collider

Details Study of the slepton non-universality at the CERN Large Hadron Collider Study of the slepton non-universality at the CERN Large Hadron Collider

2004-06-29

arxiv.org/abs/hep-ph/0406317v1

Phys.Rev. D70 (2004) 075016; Erratum-ibid. D71 (2005) 059902

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages, 6 figures, revtex

Scientific paper

10.1103/PhysRevD.70.075016

In supersymmetric theory, the sfermion-fermion-gaugino interactions conserve the chirality of (s)fermions. The effect appears as the charge asymmetry in $m(jl)$ distributions at the CERN Large Hadron Collider where jets and leptons arise from the cascade decay $\tilde{q} \to q \tilde{\chi}^0_2 \to ql\tilde{l}$. Furthermore, the decay branching ratios and the charge asymmetries in $m(jl)$ distributions are flavor non-universal due to the $\tilde{l}_L$ and $\tilde{l}_R$ mixing. When $\tan\beta$ is large, the non-universality between $e$ and $\mu$ becomes $O(10)%$ level. We perform a Monte Carlo simulation for some minimal supergravity benchmark points to demonstrate the detectability.

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