Search for diphoton events with large missing transverse energy in 6.3 fb.sup.−1./sup. of ppˉ collisions at s=1.96 TeV

0357996 - FZÚ 2011 RIV US eng J - Journal Article
Abazov, V. M. - Abbott, B. - Abolins, M. - Kupčo, Alexander - Lokajíček, Miloš
Search for diphoton events with large missing transverse energy in 6.3 fb⁻¹ of ppˉ collisions at s=1.96 TeV.
Physical Review Letters. Roč. 105, č. 22 (2010), 221802/1-221802/8. ISSN 0031-9007. E-ISSN 1079-7114
R&D Projects: GA MŠMT LC527; GA MŠMT LA08047
Institutional research plan: CEZ:AV0Z10100502
Keywords : pair production * universal extra dimension * Batavia TEVATRON Coll * DZERO * experimental results * interaction
Subject RIV: BF - Elementary Particles and High Energy Physics
Impact factor: 7.621, year: 2010
http://arxiv.org/abs/arXiv:1008.2133

We report a search for diphoton events with large missing transverse energy produced in ppbar collisions at sqrt(s)=1.96 TeV. The data were collected with the D0 detector at the Fermilab Tevatron Collider, and correspond to 6.3 fb-1 of integrated luminosity. The observed missing transverse energy distribution is well described by the standard model prediction, and 95% C.L. limits are derived on two realizations of theories beyond the standard model. In a gauge mediated supersymmetry breaking scenario, the breaking scale Lambda is excluded for Lambda < 124 TeV. In a universal extra dimension model including gravitational decays, the compactification radius R_c is excluded for R_c-1 < 477 GeV.
Permanent Link: http://hdl.handle.net/11104/0196148