Measurement of the combined rapidity and p(T) dependence of dijet azimuthal decorrelations in p(p)over-bar collisions at root s=1.96 TeV
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
---|---|
Data(s) |
03/12/2014
03/12/2014
25/04/2013
|
Resumo |
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) We present the first combined measurement of the rapidity and transverse momentum dependence of dijet azimuthal decorrelations, using the recently proposed quantity R-Delta phi. The variable R-Delta phi measures the fraction of the inclusive dijet events in which the azimuthal separation of the two jets with the highest transverse momenta is less than a specified value of the parameter Delta phi(max). The quantity R-Delta phi is measured in p (p) over bar collisions at root s = 1.96 TeV, as a function of the dijet rapidity interval, the total scalar transverse momentum, and Delta phi(max). The measurement uses an event sample corresponding to an integrated luminosity of 0.7 fb(-1) collected with the DO detector at the Fermilab Tevatron Collider. The results are compared to predictions of a perturbative QCD calculation at next-to-leading order in the strong coupling with corrections for non-perturbative effects. The theory predictions describe the data well, except in the kinematic region of large dijet rapidity intervals and small Delta phi(max). (C) 2013 Elsevier B.V. All rights reserved. |
Formato |
212-219 |
Identificador |
http://dx.doi.org/10.1016/j.physletb.2013.03.029 Physics Letters B. Amsterdam: Elsevier Science Bv, v. 721, n. 4-5, p. 212-219, 2013. 0370-2693 http://hdl.handle.net/11449/111507 10.1016/j.physletb.2013.03.029 WOS:000318055900003 WOS000318055900003.pdf |
Idioma(s) |
eng |
Publicador |
Elsevier B.V. |
Relação |
Physics Letters B |
Direitos |
openAccess |
Tipo |
info:eu-repo/semantics/article |