We present a measurement of the tt-bar production cross section in p anti-p collisions at s**(1/2) =1.96 TeV using events containing a high transverse momentum electron or muon, three or more jets, and missing transverse energy. Events consistent with tt-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.
Measurement of the tt-bar Production Cross Section in 2 fb-1 of p anti-p Collisions at s**(1/2) =1.96 TeV Using Lepton Plus Jets Events with Soft Muon Tagging / A. Castro; M. Deninno; P. Mazzanti; N. Moggi; F. Rimondi; F. Semeria; S. Zucchelli. - In: PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY. - ISSN 1550-7998. - STAMPA. - 79 (5):(2009), pp. 052007-1-052007-25. [10.1103/PhysRevD.79.052007]
Measurement of the tt-bar Production Cross Section in 2 fb-1 of p anti-p Collisions at s**(1/2) =1.96 TeV Using Lepton Plus Jets Events with Soft Muon Tagging
CASTRO, ANDREA;DENINNO, MARIA MADDALENA;MOGGI, NICCOLO';RIMONDI, FRANCO;ZUCCHELLI, STEFANO
2009
Abstract
We present a measurement of the tt-bar production cross section in p anti-p collisions at s**(1/2) =1.96 TeV using events containing a high transverse momentum electron or muon, three or more jets, and missing transverse energy. Events consistent with tt-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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.