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
1998
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), .
(doi:10.1103/PhysRevLett.80.442).
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
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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
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Last modified: 16 Mar 2024 03:54
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Author:
B. Abbott
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