Title
Search for pair production of supersymmetric top quarks in dilepton events from pp̄ collisions at √s=1.96TeV
Date Issued
23 June 2010
Access level
open access
Resource Type
journal article
Author(s)
Aaltonen T.
Adelman J.
Akimoto T.
Álvarez González B.
Amerio S.
Amidei D.
Anastassov A.
Annovi A.
Antos J.
Apollinari G.
Apresyan A.
Arisawa T.
Artikov A.
Ashmanskas W.
Attal A.
Aurisano A.
Azfar F.
Badgett W.
Barbaro-Galtieri A.
Barnes V.E.
Barnett B.A.
Barria P.
Bartsch V.
Bauer G.
Beauchemin P.H.
Bedeschi F.
Beecher D.
Behari S.
Bellettini G.
Bellinger J.
Benjamin D.
Beretvas A.
Beringer J.
Bhatti A.
Binkley M.
Bisello D.
Bizjak I.
Blair R.E.
Blocker C.
Blumenfeld B.
Bocci A.
Bodek A.
Boisvert V.
Bolla G.
Bortoletto D.
Boudreau J.
Boveia A.
Brau B.
Bridgeman A.
Brigliadori L.
Bromberg C.
Brubaker E.
Budagov J.
Budd H.S.
Budd S.
Burke S.
Burkett K.
Busetto G.
Bussey P.
Buzatu A.
Byrum K.L.
Cabrera S.
Calancha C.
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.
Chang S.H.
Chen Y.C.
Chertok M.
Chiarelli G.
Chlachidze G.
Chlebana F.
Cho K.
Chokheli D.
Chou J.P.
Choudalakis G.
Chuang S.H.
Chung K.
Chung W.H.
Chung Y.S.
Chwalek T.
Ciobanu C.I.
Ciocci M.A.
Clark A.
Clark D.
Publisher(s)
American Physical Society
Abstract
We present the results of a search for pair production of the supersymmetric partner of the top quark (the top squark t̃1) decaying to a b quark and a chargino χ̃1± with a subsequent χ̃1± decay into a neutralino χ̃10, lepton ℓ, and neutrino ν. Using a data sample corresponding to 2.7fb-1 of integrated luminosity of pp̄ collisions at √s=1.96TeV collected by the CDF II detector, we reconstruct the mass of top squark candidate events and fit the observed mass spectrum to a combination of standard model processes and t̃1t̃̄1 signal. We find no evidence for t̃1t̃̄1 production and set 95% C.L. limits on the masses of the top squark and the neutralino for several values of the chargino mass and the branching ratio B(χ̃1±→χ̃10ℓ±ν). © 2010 The American Physical Society.
Volume
104
Issue
25
Language
English
OCDE Knowledge area
Física nuclear
Física de partículas, Campos de la Física
Scopus EID
2-s2.0-77953986319
Source
Physical Review Letters
ISSN of the container
1079-7114
Sponsor(s)
Science and Technology Facilities Council PP/E000444/1, ST/H001026/1, ST/H001026/2, ST/H001069/1, ST/H001077/1 STFC
Sources of information:
Directorio de Producción Científica
Scopus