We present a measurement of the t (t) over bar production cross section in p (p) over bar collisions at root s = 1.96 TeV using events containing a high transverse momentum electron or muon, three or more jets, and missing transverse energy. Events consistent with t (t) over bar decay are found by identifying jets containing candidate heavy-flavor semileptonic decays to muons. The measurement uses a CDF run II data sample corresponding to 2 fb(-1) of integrated luminosity. Based on 248 candidate events with three or more jets and an expected background of 79.5 +/- 5.3 events, we measure a production cross section of 9.1 +/- 1.6 pb. RI Ruiz, Alberto/E-4473-2011; Robson, Aidan/G-1087-2011; De Cecco, Sandro/B-1016-2012; St.Denis, Richard/C-8997-2012; Prokoshin, Fedor/E-2795-2012
Digital Object Identifier (DOI): | http://dx.doi.org/10.1103/PhysRevD.79.052007 |
Codice identificativo ISI: | WOS:000264762400014 |
Codice identificativo Scopus: | 2-s2.0-65349166882 |
Handle: | http://hdl.handle.net/11695/4207 |
Abstract: | We present a measurement of the t (t) over bar production cross section in p (p) over bar collisions at root s = 1.96 TeV using events containing a high transverse momentum electron or muon, three or more jets, and missing transverse energy. Events consistent with t (t) over bar decay are found by identifying jets containing candidate heavy-flavor semileptonic decays to muons. The measurement uses a CDF run II data sample corresponding to 2 fb(-1) of integrated luminosity. Based on 248 candidate events with three or more jets and an expected background of 79.5 +/- 5.3 events, we measure a production cross section of 9.1 +/- 1.6 pb. RI Ruiz, Alberto/E-4473-2011; Robson, Aidan/G-1087-2011; De Cecco, Sandro/B-1016-2012; St.Denis, Richard/C-8997-2012; Prokoshin, Fedor/E-2795-2012 |
Titolo: | Measurement of the t(t)over-bar production cross section in 2 fb(-1) of p(p)over-bar collisions at root s = 1.96 TeV using lepton plus jets events with soft muon b tagging |
Autori: | |
Appare nelle tipologie: | 1.1 Articolo in rivista |