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Experimental search for chargino and neutralino production in supersymmetry models with a light gravitino

Experimental search for chargino and neutralino production in supersymmetry models with a light gravitino
Experimental search for chargino and neutralino production in supersymmetry models with a light gravitino
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 in supersymmetry models with a light gravitino. 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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Published date: 1998
Organisations: Physics & Astronomy

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Local EPrints ID: 409607
URI: http://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

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Date deposited: 31 May 2017 04:02
Last modified: 16 Mar 2024 03:54

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Author: B. Abbott

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