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

Abstract

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 $\tilde{q}\to q{\tilde{\chi }}_2^0\to ql\tilde{l}$. 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.

19 pages, 6 figures, revtex

References in corpus (1)

• Determining the spin of supersymmetric particles at the LHC using lepton charge asymmetry

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