A search for diphoton events with large missing transverse energy is presented. The data were collected pffiffi with the ATLAS detector in proton-proton collisions at s 1⁄4 7 TeV at the CERN Large Hadron Collider and correspond to an integrated luminosity of 3:1 pb␣1. No excess of such events is observed above the standard model background prediction. In the context of a specific model with one universal extra dimension with compactification radius R and gravity-induced decays, values of 1=R < 729 GeV are excluded at 95% C. L., providing the most sensitive limit on this model to date.
Search for Diphoton Events with Large Missing Transverse Energy in 7 TeV Proton-Proton Collisions with the ATLAS Detector / Aad, G; Aloisio, Alberto; Alviggi, Mariagrazia; Canale, Vincenzo; Cevenini, Francesco; Chiefari, Giovanni; DELLA VOLPE, Domenico; Merola, Leonardo; Patricelli, Sergio; Conventi, F.; DELLA PIETRA, Massimo; Giordano, Raffaele; Musto, E.; Rossi, E.; Sanchez, A.; Carlino, G.; de Asmundis, R.; Doria, A.; Iengo, P.; Izzo, V.; Sekhniaidze, G.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 106:(2011), pp. 121803-121821. [10.1103/PhysRevLett.106.121803]
Search for Diphoton Events with Large Missing Transverse Energy in 7 TeV Proton-Proton Collisions with the ATLAS Detector
ALOISIO, ALBERTO;ALVIGGI, MARIAGRAZIA;CANALE, VINCENZO;CEVENINI, FRANCESCO;CHIEFARI, GIOVANNI;DELLA VOLPE, DOMENICO;MEROLA, LEONARDO;PATRICELLI, SERGIO;DELLA PIETRA, MASSIMO;GIORDANO, RAFFAELE;Rossi E.;
2011
Abstract
A search for diphoton events with large missing transverse energy is presented. The data were collected pffiffi with the ATLAS detector in proton-proton collisions at s 1⁄4 7 TeV at the CERN Large Hadron Collider and correspond to an integrated luminosity of 3:1 pb␣1. No excess of such events is observed above the standard model background prediction. In the context of a specific model with one universal extra dimension with compactification radius R and gravity-induced decays, values of 1=R < 729 GeV are excluded at 95% C. L., providing the most sensitive limit on this model to date.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
