Title
Improved determination of the sample composition of dimuon events produced in pp̄ collisions at √s=1.96 TeV
Date Issued
01 January 2011
Access level
open access
Resource Type
journal article
Author(s)
Aaltonen T.
ÁlvarezGonzález B.
Amerio S.
Amidei D.
Anastassov A.
Annovi A.
Antos J.
Apollinari G.
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.
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.
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.
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.
Clarke C.
Compostella G.
Convery M.E.
Corbo M.
Cordelli M.
Cox C.A.
Cox D.J.
Crescioli F.
Cuenca Almenar C.
Cuevas J.
Dagenhart D.
d'Ascenzo N.
Datta M.
de Barbaro P.
De Cecco S.
Publisher(s)
Springer New York LLC
Abstract
We use a new method to estimate with 5% accuracy the contribution of pion and kaon in-flight-decays to the dimuon data set acquired with the CDF detector. Based on this improved estimate, we show that the total number and the properties of the collected dimuon events are not yet accounted for by ordinary sources of dimuons which also include the contributions, as measured in the data, of heavy flavor, Υ{hooked}, and Drell-Yan production in addition to muons mimicked by hadronic punchthrough. The number of unaccounted events corresponds to (12.8±3.2)% of the bb̄ production. We find that (23±6)% of the unaccounted events contain additional muon candidates. For comparison, this fraction is (6.9±0.4)% for events due to bb̄ production. © 2011 The Author(s).
Start page
1
End page
14
Volume
71
Issue
8
Language
English
OCDE Knowledge area
Física de partículas, Campos de la Física
Física nuclear
Scopus EID
2-s2.0-84883186585
Source
European Physical Journal C
ISSN of the container
14346044
Sponsor(s)
Science and Technology Facilities Council ST/H001026/1, ST/H001026/2, ST/H001069/1 STFC
Japan Society for the Promotion of Science 18071002 JSPS
Sources of information:
Directorio de Producción Científica
Scopus