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Experimental search for chargino and neutralino production via gauge mediated supersymmetry breaking models

Experimental search for chargino and neutralino production via gauge mediated supersymmetry breaking models
Experimental search for chargino and neutralino production via gauge mediated supersymmetry breaking models
We search for inclusive high ET diphoton events with large missing transverse energy in p
¯
p collisions at √s=1.8TeV. Such events are expected from pair production of charginos and neutralinos within the framework of the minimal supersymmetric standard model with a light gravitino. No excess of events is observed. In that model, and assuming gaugino mass unification at the GUT scale, we obtain a 95% C.L. exclusion region in the supersymmetry parameter space and lower mass bounds of 150GeV/c2 for the lightest chargino and 77GeV/c2 for the lightest neutralino.
442-447
Abbott, B.
9d06072e-d002-47e9-a49b-d209a2c79e00
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3
Abbott, B.
9d06072e-d002-47e9-a49b-d209a2c79e00
Belyaev, Alexander
6bdb9638-5ff9-4b65-a8f2-34bae3ac34b3

Abbott, B. and Belyaev, Alexander (1998) Experimental search for chargino and neutralino production via gauge mediated supersymmetry breaking models. Physical Review Letters, 80 (3), 442-447. (doi:10.1103/PhysRevLett.80.442).

Record type: Article

Abstract

We search for inclusive high ET diphoton events with large missing transverse energy in p
¯
p collisions at √s=1.8TeV. Such events are expected from pair production of charginos and neutralinos within the framework of the minimal supersymmetric standard model with a light gravitino. No excess of events is observed. In that model, and assuming gaugino mass unification at the GUT scale, we obtain a 95% C.L. exclusion region in the supersymmetry parameter space and lower mass bounds of 150GeV/c2 for the lightest chargino and 77GeV/c2 for the lightest neutralino.

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More information

Published date: 1998
Organisations: Physics & Astronomy

Identifiers

Local EPrints ID: 409607
URI: https://eprints.soton.ac.uk/id/eprint/409607
PURE UUID: 3b29e35f-eb6c-433c-abbe-e174a12eef31
ORCID for Alexander Belyaev: ORCID iD orcid.org/0000-0002-1733-4408

Catalogue record

Date deposited: 31 May 2017 04:02
Last modified: 14 Mar 2019 01:40

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