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

In supersymmetric theory, the sfermion-fermion-gaugino interaction 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 letons arise from the cascade decay squark -> quark and chi2 -> quark, le...

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Detalles Bibliográficos
Autores principales: Goto, T, Kawagoe, K, Nojiri, M
Lenguaje:eng
Publicado: 2004
Materias:
Acceso en línea:https://dx.doi.org/10.1103/PhysRevD.70.075016
https://dx.doi.org/10.1103/PhysRevD.71.059902
http://cds.cern.ch/record/740924
Descripción
Sumario:In supersymmetric theory, the sfermion-fermion-gaugino interaction 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 letons arise from the cascade decay squark -> quark and chi2 -> quark, lepton, and slepton. Furthermore, the decay branching ratios and the charge asymmetries in m(jl) distributions are flavor non-universal due to the slepton_L and slepton_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 the minimal supergravity benchmark points to demonstrate the detectability.