Description: Prompt J/Psi production in the Regge limit of QCD: From the Tevatron to the LHC

This title appears in the Scientific Report : 2012

Prompt J/Psi production in the Regge limit of QCD: From the Tevatron to the LHC

We study prompt J/psi-meson hadroproduction invoking the hypothesis of gluon Reggeization in t-channel exchanges at high energy and the factorization formalism of nonrelativistic quantum chromodynamics at the leading order in the strong-coupling constant alpha(s) and the relative velocity of quarks...

Personal Name(s):	Saleev, V.A.
	Nefedov, M.A. / Shipilova, A.V.
Contributing Institute:	Experimentelle Hadrondynamik; IKP-2
Published in:	Physical Review D Physical review / D, 85 85 (2012 2012) 7 7, S. 074013 074013
Imprint:	[S.l.] Soc. 2012 2012-04-10 2012-04-01
Physical Description:	074013
DOI:	10.1103/PhysRevD.85.074013
Document Type:	Journal Article
Research Program:	Physik der Hadronen und Kerne
Series Title:	Physical Review D 85
Subject (ZB):	J/psi(3100): hadroproduction gluon: Regge quantum chromodynamics: nonrelativistic gluon: distribution function transverse momentum: momentum spectrum CERN LHC Coll Batavia TEVATRON Coll p p: inclusive reaction anti-p p: annihilation J/psi(3100): direct production factorization numerical calculations 1800: 1960: 7000 GeV-cms 7
Link:	Get full text OpenAccess OpenAccess
	Publikationsportal JuSER

Please use the identifier: http://hdl.handle.net/2128/10252 in citations.
Please use the identifier: http://dx.doi.org/10.1103/PhysRevD.85.074013 in citations.

We study prompt J/psi-meson hadroproduction invoking the hypothesis of gluon Reggeization in t-channel exchanges at high energy and the factorization formalism of nonrelativistic quantum chromodynamics at the leading order in the strong-coupling constant alpha(s) and the relative velocity of quarks upsilon. The transverse-momentum distribution of direct and prompt J/psi-meson production measured at the Fermilab Tevatron fitted to obtain the nonperturbative long-distance matrix elements, which are used to predict prompt J/psi production spectra at the CERN LHC. At the numerical calculation, we adopt the Kimber-Martin-Ryskin and Blumlein prescriptions to derive unintegrated gluon distribution function of the proton from their collinear counterpart, for which we use the Martin-Roberts-Stirling-Thorne set. Without adjusting any free parameters, we find good agreement with measurements by the ATLAS, CMS and LHCb Collaborations at the LHC at the hadronic c.m. energy root S = 7 TeV.