Measurement of direct photon pair production cross sections in p(p)over-bar collisions at root s=1.96 TeV
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Data
2010-06-14
Autores
Abazov, V. M.
Abbott, B.
Abolins, M.
Acharya, B. S.
Adams, M.
Adams, T.
Aguilo, E.
Alexeev, G. D.
Alkhazov, G.
Alton, A.
Título da Revista
ISSN da Revista
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Editor
Elsevier B.V.
Resumo
We present a measurement of direct photon pair production cross sections using 4.2 fb(-1) of data collected with the do detector at the Fermilab Tevatron p (p) over bar Collider. We measure single differential cross sections as a function of the diphoton mass, the transverse momentum of the diphoton system, the azimuthal angle between the photons, and the polar scattering angle of the photons. In addition, we measure double differential cross sections considering the last three kinematic variables in three diphoton mass bins. The results are compared with different perturbative QCD predictions and event generators. (C) 2010 Elsevier B.V. All rights reserved.
Descrição
Palavras-chave
Diphoton, Cross section, DPP, Differential, DO, Tevatron
Como citar
Physics Letters B. Amsterdam: Elsevier B.V., v. 690, n. 2, p. 108-117, 2010.