Stop decay into right-handed sneutrino LSP at hadron colliders | Zendy

André de Gouvêa | Zendy; Shrihari Gopalakrishna | Zendy; W. Porod | Zendy

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Stop decay into right-handed sneutrino LSP at hadron colliders

Author(s) -

André de Gouvêa,

Shrihari Gopalakrishna,

W. Porod

Publication year - 2006

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2006/11/050

Subject(s) - physics , particle physics , lightest supersymmetric particle , neutrino , supersymmetry , superpartner , electroweak scale , minimal supersymmetric standard model , supersymmetry breaking , tevatron , lepton , nuclear physics , large hadron collider , electron

Right-handed neutrinos offer us the possibility of accommodating neutrinomasses. In a supersymmetric model, this implies the existence of right-handedsneutrinos. Right-handed sneutrinos are expected to be as light as othersupersymmetric particles if the neutrinos are Dirac fermions, or if thelepton-number breaking scale is at (or below) the supersymmetry (SUSY) breakingscale, assumed to be around the electroweak scale. Depending on the mechanismof SUSY breaking, the lightest right-handed sneutrino may be the lightestsupersymmetric particle (LSP). We consider the unique hadron collidersignatures of a weak scale right-handed sneutrino LSP, assuming R-parityconservation. For concreteness, we concentrate on stop pair-production anddecay at the Tevatron and the Large Hadron Collider, and briefly comment on theproduction and decay of other supersymmetric particles.Comment: 25 pages, 15 figures. v2: References added. v3: Published versio

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