Search for single b∗-quark production with the ATLAS detector at s√=7 TeV

doi:10.1016/j.physletb.2013.03.016

Utilize este identificador para referenciar este registo: https://hdl.handle.net/1822/32072

Título:	Search for single b∗-quark production with the ATLAS detector at s√=7 TeV
Autor(es):	Onofre, A. Castro, Nuno Filipe Silva Fernandes ATLAS Collaboration
Palavras-chave:	ATLAS b* Single top-quark Excited quark
Data:	2013
Editora:	Elsevier 1
Revista:	Physics Letters B
Citação:	Aad, G., Abajyan, T., Abbott, B., Abdallah, J., Khalek, S. A., Abdelalim, A. A., . . . Collaboration, A. (2013). Search for single b*-quark production with the ATLAS detector at root s=7 TeV. [Article]. Physics Letters B, 721(4-5), 171-189. doi: 10.1016/j.physletb.2013.03.016
Resumo(s):	The results of a search for an excited bottom-quark b∗ in pp collisions at √s = 7 TeV, using 4.7 fb−1 of data collected by the ATLAS detector at the LHC are presented. In the model studied, a single b∗-quark is produced through a chromomagnetic interaction and subsequently decays to a W boson and a top quark. The search is performed in the dilepton and lepton+jets final states, which are combined to set limits on b∗-quark couplings for a range of b∗-quark masses. For a benchmark with unit size chromomagnetic and Standard Model-like electroweak b∗ couplings, b∗ quarks with masses less than 870 GeV are excluded at the 95% credibility level.
Tipo:	Artigo
URI:	https://hdl.handle.net/1822/32072
DOI:	10.1016/j.physletb.2013.03.016
ISSN:	0370-2693
Versão da editora:	http://www.sciencedirect.com/science/article/pii/S0370269313002281
Arbitragem científica:	yes
Acesso:	Acesso aberto
Aparece nas coleções:	LIP - Artigos/papers