Search for disappearing tracks in proton-proton collisions at root s=8 TeV
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
21/10/2015
21/10/2015
19/01/2015
|
Resumo |
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) A search is presented for long-lived charged particles that decay within the CMS detector and produce the signature of a disappearing track. Disappearing tracks are identified as those with little or no associated calorimeter energy deposits and with missing hits in the outer layers of the tracker. The search uses proton-proton collision data recorded at root s = 8 TeV that corresponds to an integrated luminosity of 19.5 fb(-1). The results of the search are interpreted in the context of the anomaly-mediated supersymmetry breaking (AMSB) model. The number of observed events is in agreement with the background expectation, and limits are set on the cross section of direct electroweak chargino production in terms of the chargino mass and mean proper lifetime. At 95% confidence level, AMSB models with a chargino mass less than 260 GeV, corresponding to a mean proper lifetime of 0.2 ns, are excluded. |
Formato |
1-43 |
Identificador |
http://link.springer.com/article/10.1007%2FJHEP01%282015%29096 Journal Of High Energy Physics. New York: Springer, n. 1, p. 1-43, 2015. 1029-8479 http://hdl.handle.net/11449/129584 http://dx.doi.org/10.1007/JHEP01(2015)096 WOS:000348341900001 |
Idioma(s) |
eng |
Publicador |
Springer |
Relação |
Journal Of High Energy Physics |
Direitos |
closedAccess |
Palavras-Chave | #Hadron-Hadron Scattering #Supersymmetry #Exotics |
Tipo |
info:eu-repo/semantics/article |