Detecting a light gravitino at a linear collider to probe the SUSY-breaking scale

Journal Article · Thu Aug 01 04:00:00 EDT 1996 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.54.1936· OSTI ID:286404

Stump, D R; Wiest, M; Yuan, C ^[1]

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1. Department of Physics and Astronomy, Michigan State University, East Lansing, Michigan 48824 (United States)

If supersymmetry is dynamically broken at a low scale ({ital M}{sub SUSY}), within a few orders of magnitude of the weak scale, then the lightest supersymmetric partner is the gravitino and the next-to-lightest supersymmetric partner is a neutralino {chi}{sup 0}{sub 1} with mass {ital m}{sub {chi}{sup 0}{sub 1}}, which can decay into a photon ({gamma}) plus a gravitino ({tilde {ital G}}). We study the detection of {ital e}{sup {minus}}{ital e}{sup +}{r_arrow}{chi}{sup 0}{sub 1}{chi}{sup 0}{sub 1}{r_arrow}{gamma}{tilde {ital G}}{gamma}{tilde {ital G}} at the proposed Linear Collider, and find the range of the parameters {ital M}{sub SUSY} and {ital m}{sub {chi}{sup 0}{sub 1}} that can be accessible with a right-hand polarized electron beam at {radical}{ital S}=500 GeV, with 50 fb{sup {minus}1} integrated luminosity. We also discuss briefly the accessible range for current electron and hadron colliders. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 286404
• Journal Information: Physical Review, D, Journal Name: Physical Review, D Journal Issue: 3 Vol. 54; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
DETECTION
ELECTRON BEAMS
GRAVITONS
HADRON-HADRON INTERACTIONS
LINEAR COLLIDERS
LUMINOSITY
NEUTRINOS
PHOTONS
POLARIZED BEAMS
SPARTICLES
SUPERSYMMETRY
SYMMETRY BREAKING