Measurement of Z Boson Production in Pb-Pb Collisions at root s(NN)=2.76 TeV with the ATLAS Detector

doi:10.1103/PhysRevLett.110.022301

Utilize este identificador para referenciar este registo: https://hdl.handle.net/1822/32018

Título:	Measurement of Z Boson Production in Pb-Pb Collisions at root s(NN)=2.76 TeV with the ATLAS Detector
Autor(es):	Onofre, A. Castro, Nuno Filipe Silva Fernandes ATLAS Collaboration
Data:	2013
Editora:	American Physical Society
Revista:	Physical Review Letters
Citação:	Aad, G., Abajyan, T., Abbott, B., Abdallah, J., Khalek, S. A., Abdelalim, A. A., . . . Collaboration, A. (2013). Measurement of Z Boson Production in Pb-Pb Collisions at root s(NN)=2.76 TeV with the ATLAS Detector. [Article]. Physical Review Letters, 110(2). doi: 10.1103/PhysRevLett.110.022301
Resumo(s):	The ATLAS experiment has observed 1995 Z boson candidates in data corresponding to 0.15 nb−1 of integrated luminosity obtained in the 2011 LHC Pb+Pb run at sNN−−−−√=2.76 TeV. The Z bosons are reconstructed via dielectron and dimuon decay channels, with a background contamination of less than 3%. Results from the two channels are consistent and are combined. Within the statistical and systematic uncertainties, the per-event Z boson yield is proportional to the number of binary collisions estimated by the Glauber model. The elliptic anisotropy of the azimuthal distribution of the Z boson with respect to the event plane is found to be consistent with zero.
Tipo:	Artigo
URI:	https://hdl.handle.net/1822/32018
DOI:	10.1103/PhysRevLett.110.022301
ISSN:	0031-9007
e-ISSN:	1079-7114
Versão da editora:	http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.110.022301
Arbitragem científica:	yes
Acesso:	Acesso aberto
Aparece nas coleções:	LIP - Artigos/papers