Higgsino cold dark matter motivated by collider data

Journal Article · Sat Jun 01 00:00:00 EDT 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.76.4458· OSTI ID:285752

Kane, G L; Wells, J D ^[1]

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1. Randall Physics Laboratory, University of Michigan, Ann Arbor, Michigan 48109-1120 (United States)

Motivated by a supersymmetric interpretation of the CDF {ital ee}{gamma}{gamma}+{ital E}/{sub {ital T}} event and the reported {ital Z}{r_arrow}{bar {ital bb}} excess at LEP, we analyze the implied Higgsino-like lightest supersymmetric partner as a cold dark matter candidate. We examine constraints and calculate its relic density, obtaining 0.05{lt}{Omega}{ital h}{sup 2}{lt}1. Thus it is a viable cold dark matter candidate, and we discuss its favorable prospects for laboratory detection. {copyright} {ital 1996 The American Physical Society.}

• Research Organization: SLAC National Accelerator Lab., Menlo Park, CA (United States)
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 285752
• Journal Information: Physical Review Letters, Vol. 76, Issue 24; Other Information: PBD: Jun 1996
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
HIGGS BOSONS
SPARTICLES
NONLUMINOUS MATTER
SUPERSYMMETRY
FERMILAB COLLIDER DETECTOR
ELECTRONS
PHOTONS
LEP STORAGE RINGS
Z NEUTRAL BOSONS
WEAK HADRONIC DECAY