Title
Measurement of the tt̄ production cross section in pp̄ collisions at √s=1.96TeV using events with large missing transverse energy and jets
Date Issued
09 August 2011
Access level
open access
Resource Type
journal article
Author(s)
Aaltonen T.
Álvarez González B.
Amerio S.
Amidei D.
Anastassov A.
Annovi A.
Antos J.
Apollinari G.
Appel J.A.
Apresyan A.
Arisawa T.
Artikov A.
Asaadi J.
Ashmanskas W.
Auerbach B.
Aurisano A.
Azfar F.
Badgett W.
Barbaro-Galtieri A.
Barnes V.E.
Barnett B.A.
Barria P.
Bartos P.
Bauce M.
Bauer G.
Bedeschi F.
Beecher D.
Behari S.
Bellettini G.
Bellinger J.
Benjamin D.
Beretvas A.
Bhatti A.
Binkley M.
Bisello D.
Bizjak I.
Bland K.R.
Blumenfeld B.
Bocci A.
Bodek A.
Bortoletto D.
Boudreau J.
Boveia A.
Brau B.
Brigliadori L.
Brisuda A.
Bromberg C.
Brucken E.
Bucciantonio M.
Budagov J.
Budd H.S.
Budd S.
Burkett K.
Busetto G.
Bussey P.
Buzatu A.
Calancha C.
Camarda S.
Campanelli M.
Campbell M.
Canelli F.
Canepa A.
Carls B.
Carlsmith D.
Carosi R.
Carrillo S.
Carron S.
Casal B.
Casarsa M.
Castro A.
Catastini P.
Cauz D.
Cavaliere V.
Cavalli-Sforza M.
Cerri A.
Cerrito L.
Chen Y.C.
Chertok M.
Chiarelli G.
Chlachidze G.
Chlebana F.
Cho K.
Chokheli D.
Chou J.P.
Chung W.H.
Chung Y.S.
Ciobanu C.I.
Ciocci M.A.
Clark A.
Compostella G.
Convery M.E.
Conway J.
Corbo M.
Cordelli M.
Cox C.A.
Cox D.J.
Crescioli F.
Cuenca Almenar C.
Cuevas J.
Culbertson R.
Abstract
In this paper we report a measurement of the tt̄ production cross section in pp̄ collisions at √s=1.96TeV using data corresponding to an integrated luminosity of 2.2fb-1 collected with the CDF II detector at the Tevatron accelerator. We select events with significant missing transverse energy and high jet multiplicity. This measurement vetoes the presence of explicitly identified electrons and muons, thus enhancing the tau contribution of tt̄ decays. Signal events are discriminated from the background using a neural network, and heavy flavor jets are identified by a secondary-vertex tagging algorithm. We measure a tt̄ production cross section of 7.99±0.55(stat)±0.76(syst)±0.46(lumi) pb, assuming a top mass mtop=172.5GeV/c2, in agreement with previous measurements and standard model predictions. © 2011 American Physical Society.
Volume
84
Issue
3
Language
English
OCDE Knowledge area
Física atómica, molecular y química
Física de partículas, Campos de la Física
Scopus EID
2-s2.0-80052685562
Source
Physical Review D - Particles, Fields, Gravitation and Cosmology
ISSN of the container
15502368
Sponsor(s)
Science and Technology Facilities Council - ST/H001026/1, ST/H001026/2, ST/H001069/1.
Japan Society for the Promotion of Science - 18071002.
Sources of information:
Directorio de Producción Científica
Scopus