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Titolo: Constraints for the nuclear sea quark distributions from the Drell-Yan process at the SPS
Autore: Eskola, KJ; Kolhinen, VJ; Salgado, CA; Thews, RL;
- Indirizzi:
- Univ Jyvaskyla, Dept Phys, Jyvaskyla 40351, Finland Univ Jyvaskyla Jyvaskyla Finland 40351 pt Phys, Jyvaskyla 40351, Finland Univ Paris 11, Lab Phys Theor, F-91405 Orsay, France Univ Paris 11 OrsayFrance F-91405 Lab Phys Theor, F-91405 Orsay, France Univ Arizona, Dept Phys, Tucson, AZ 85721 USA Univ Arizona Tucson AZ USA 85721 Arizona, Dept Phys, Tucson, AZ 85721 USA Univ Helsinki, Helsinki Inst Phys, FIN-00014 Helsinki, Finland Univ Helsinki Helsinki Finland FIN-00014 ys, FIN-00014 Helsinki, Finland
- Titolo Testata:
- EUROPEAN PHYSICAL JOURNAL C
fascicolo: 4,
volume: 21,
anno: 2001,
pagine: 613 - 620
- SICI:
- 1434-6044(200107)21:4<613:CFTNSQ>2.0.ZU;2-Q
- Fonte:
- ISI
- Lingua:
- ENG
- Soggetto:
- STRUCTURE-FUNCTION RATIOS; PARTON DISTRIBUTIONS; ELECTRON-SCATTERING; DIMUON PRODUCTION; GLOBAL ANALYSIS; A-DEPENDENCE; COLLISIONS; DEUTERIUM; LIBRARY; J/PSI;
- Tipo documento:
- Article
- Natura:
- Periodico
- Settore Disciplinare:
- Physical, Chemical & Earth Sciences
- Citazioni:
- 33
- Recensione:
- Indirizzi per estratti:
- Indirizzo: Eskola, KJ Univ Jyvaskyla, Dept Phys, POB 35, Jyvaskyla 40351, Finland Univ Jyvaskyla POB 35 Jyvaskyla Finland 40351 a 40351, Finland
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- Citazione:
- K.J. Eskola et al., "Constraints for the nuclear sea quark distributions from the Drell-Yan process at the SPS", EUR PHY J C, 21(4), 2001, pp. 613-620
Abstract
Nuclear modifications to the Drell-Yan dilepton production cross sections in p + A and A + A collisions in the leading twist approximation are causedby nuclear effects in the parton distributions of bound nucleons. For non-isoscalar nuclei, isospin corrections must also be considered. We calculatethese effects for p + A and Pb + Pb collisions at CERN SPS energies. Our goal is to place constraints on nuclear effects in sea quark distributions in the region x greater than or similar to 0.2. We show that the net nuclearcorrections remain small for p + A collisions at E-lab = 450 GeV. However,in Pb + Pb collisions at E-lab = 158 AGeV, effects of greater than or similar to 20% are predicted at large M. The data collected by the NA50 collaboration could thus be used to constrain the nuclear effects in the sea quarkdistributions in the region of the EMC effect, x greater than or similar to 0.3.
ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/06/13 alle ore 02:27:21