6533b833fe1ef96bd129beda
RESEARCH PRODUCT
Measurement of the isolated diphoton cross-section in pp collisions at sqrt(s) = 7 TeV with the ATLAS detector
Atlas CollaborationVasiliki MitsouLuca FioriniEduardo Ros MartínezJuan A. Fuster VerdúCarmen García GarcíaSusana Cabrera UrbánSalvador Martí GarcíaJosé Salt CairolsCarlos Lacasta LlácerJuan Antonio Valls FerrerMiguel Villaplana PérezMaría Victoria Castillo GiménezEmilio Higón RodríguezAntonio Ferrer SoriaSantiago González De La HozMohammed KaciYesenia Hernández Jiménezsubject
Astrophysics::High Energy Astrophysical PhenomenaCol·lisions (Física nuclear)Física nuclearNuclear Experimentdescription
The ATLAS experiment has measured the production cross section of events with two isolated photons in the final state, in proton-proton collisions at root s = 7 TeV. The full data set acquired in 2010 is used, corresponding to an integrated luminosity of 37 pb(-1). The background, consisting of hadronic jets and isolated electrons, is estimated with fully data-driven techniques and subtracted. The differential cross sections, as functions of the di-photon mass (m(gamma gamma)), total transverse momentum (p(T),(gamma gamma)), and azimuthal separation (Delta phi(gamma gamma)), are presented and compared to the predictions of next-to-leading-order QCD.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-01-01 |