Search for anomalous production of diphoton events with missing transverse energy at CDF and limits on gauge-mediated supersymmetry-breaking models

Search for anomalous production of diphoton events with missing transverse energy at CDF and limits on gauge-mediated supersymmetry-breaking models

Show other versions (2)

We present the results of a search for anomalous production of diphoton events with large missing transverse energy using the Collider Detector at Fermilab. In 202  pb[superscript -1] of pp̅ collisions at √s=1.96  TeV we observe no candidate events, with an expected standard model background of 0.27...

Fuld beskrivelse

Bibliografiske detaljer
Main Authors: Anikeev, K., Bolshov, Arkadiy, Gomez-Ceballos, Guillelmo, Iyutin, Boris, Kim, T. H., Knuteson, Bruce O., Korn, Andreas, Kravchenko, I., Leonardo, N., Menzemer, S., Mulhearn, M., Paus, Christoph M. E., Rosenson, Lawrence, Tether, S., Bauer, Gerry P, Rakitin, A., Sumorok, Konstanty C
Andre forfattere: Massachusetts Institute of Technology. Department of Physics
Format: Article
Sprog:en_US
Udgivet: American Physical Society 2012
Online adgang:http://hdl.handle.net/1721.1/71678
https://orcid.org/0000-0001-6440-2680
https://orcid.org/0000-0002-6047-4211
https://orcid.org/0000-0002-9746-4594
Beskrivelse
Summary:We present the results of a search for anomalous production of diphoton events with large missing transverse energy using the Collider Detector at Fermilab. In 202  pb[superscript -1] of pp̅ collisions at √s=1.96  TeV we observe no candidate events, with an expected standard model background of 0.27±0.07(stat)±0.10(syst) events. The results exclude a lightest chargino of mass less than 167  GeV/c[superscript 2], and lightest neutralino of mass less than 93  GeV/c[superscript 2] at 95% C.L. in a gauge-mediated supersymmetry-breaking model with a light gravitino.

Lignende værker