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Title

Measurement of the pp̅ →tt̅ production cross section and the top quark mass at √s=1.96  TeV in the all-hadronic decay mode

AuthorsAaltonen, T.; Casal, Bruno ; Cuevas, Javier ; Gómez, G. ; Menzemer, Stephanie; Palencia, Enrique ; Rodrigo, Teresa ; Ruiz Jimeno, Alberto ; Scodellaro, Luca ; Vila, Iván ; Vilar, Rocío ; Cabrera, Susana ; Cuenca Almenar, Cristóbal
Keywords[PACS] Top quarks
[PACS] Hadron-induced inclusive production with identified hadrons (energy > 10 GeV)
[PACS] Hadron-induced inclusive production with identified leptons, photons, or other nonhadronic particles (energy > 10 GeV)
Plus Jets Events
p(p)over-bar Collisions
Electromagnetic Calorimeter
Parton Distributions
Pair Production
Fermilab
Detector
High Energy Physics
Issue Date22-Oct-2007
PublisherAmerican Physical Society
CitationPhysical Review D 76: 072009 (2007)
AbstractWe report the measurements of the t(t)over-bar production cross section and of the top quark mass using 1.02 fb^(-1) of p(p)over-bar data collected with the CDF II detector at the Fermilab Tevatron. We select events with six or more jets on which a number of kinematical requirements are imposed by means of a neural network algorithm. At least one of these jets must be identified as initiated by a b-quark candidate by the reconstruction of a secondary vertex. The cross section is measured to be sigma(t(t)over-bar) = 8.3 ± 1.0(stat.)+2.0-1.5(syst.)± 0.5(lumi) pb, which is consistent with the standard model prediction. The top quark mass of 174.0 ± 2.2(stat) ± 4.8(syst) GeV/c^(2) is derived from a likelihood fit incorporating reconstructed mass distributions representative of signal and background.
Description19 pages, 22 figures.-- PACS nrs.: 14.65.Ha, 13.85.Ni, 13.85.Qk.-- CDF Collaboration: et al.
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevD.76.072009
URIhttp://hdl.handle.net/10261/8533
DOI10.1103/PhysRevD.76.072009
ISSN0556-2821
E-ISSN1089-4918
Appears in Collections:(IFIC) Artículos
(IFCA) Artículos
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