Drell-Yan as a probe of small x partons at the LHC

Texto completo
Autor(es):	de Oliveira, E. G. ^{[1, 2]} ; Martin, A. D. ^[2] ; Ryskin, M. G. ^{[2, 3]} Número total de Autores: 3
Afiliação do(s) autor(es):	^[1] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo - Brazil ^[2] Univ Durham, Inst Particle Phys Phenomenol, Durham DH1 3LE - England ^[3] NRC Kurchatov Inst, Petersburg Nucl Phys Inst, St Petersburg 188300 - Russia Número total de Afiliações: 3
Tipo de documento:	Artigo Científico
Fonte:	EUROPEAN PHYSICAL JOURNAL C; v. 72, n. 7 JUL 2012.
Citações Web of Science:	11
Resumo
The predictions of Drell-Yan production of low-mass lepton pairs, at high rapidity at the LHC, are known to depend sensitively on the choice of factorization and renormalization scales. We show how this sensitivity can be greatly reduced by fixing the factorization scale of the LO contribution based on the known NLO matrix element, so that observations of this process at the LHC can make direct measurements of parton distribution functions in the low x domain; x less than or similar to 10(-4). (AU)

Processo FAPESP:	11/50597-8 - Cromodinâmica quântica em colisões de altas energias
Beneficiário:	Emmanuel Gräve de Oliveira
Modalidade de apoio:	Bolsas no Brasil - Pós-Doutorado