Precise measurement of the top-quark mass from lepton plus jets events at D0
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
30/09/2013
20/05/2014
30/09/2013
20/05/2014
09/08/2011
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Resumo |
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) We report a measurement of the mass of the top quark in lepton + jets final states of p (p) over bar -> t (t) over bar data corresponding to 2.6 fb(-1) of integrated luminosity collected by the D0 experiment at the Fermilab Tevatron Collider. A matrix-element method is developed that combines an in situ jet energy calibration with our standard jet energy scale derived from studies of gamma + jet and dijet events. We then implement a flavor-dependent jet-response correction through a novel approach. This method is used to measure a top-quark mass of m(t) = 176.01 +/- 1.64 GeV. Combining this result with our previous result obtained on an independent data set, we measure a top-quark mass of m(t) = 174.94 +/- 1.49 GeV for a total integrated luminosity of 3.6 fb(-1). |
Formato |
19 |
Identificador |
http://dx.doi.org/10.1103/PhysRevD.84.032004 Physical Review D. College Pk: Amer Physical Soc, v. 84, n. 3, p. 19, 2011. 1550-7998 http://hdl.handle.net/11449/24573 10.1103/PhysRevD.84.032004 WOS:000293703700002 WOS000293703700002.pdf |
Idioma(s) |
eng |
Publicador |
Amer Physical Soc |
Relação |
Physical Review D |
Direitos |
closedAccess |
Tipo |
info:eu-repo/semantics/article |