Discovering Chiral Higgsinos at the LHC

Arvanitaki, Asimina ; /Stanford U., ITP /SLAC

Stanford Linear Accelerator Center

关键词: Protons;    Decay;    Symmetry;    Chirality;    72 Physics Of Elementary Particles And Fields;   

DOI  :  10.2172/895273
RP-ID  :  SLAC-PUB-12196
RP-ID  :  AC02-76SF00515
RP-ID  :  895273

美国|英语

来源: UNT Digital Library

【 摘 要 】

The concept of chirality is extended to the Minimal Supersymmetric Standard Model (MSSM) and the {micro} term is forbidden by a gauged U(1){prime} symmetry. R-parity automatically emerges after symmetry breaking, suppressing proton decay and protecting the LSP. Exotics charged under the SM pose a challenge to traditional SU(5) unification, but unification is still implemented in deconstructed GUTs. Because of the multitude of additional states to the MSSM, the Z{prime} has a large width, and the SM background, neglected in previous theoretical studies, becomes important for Z{prime} discovery. As a result, the LHC reach is reduced from 3.2 TeV, for a Z{prime} with SM decays, to 1.5 TeV, when additional decay channels are included. This model also predicts possibly long-lived colored and electroweak exotics.