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Title:Measurement of direct CP asymmetry in B± → J/ K± decays produced in pp̅ collisions at √s = 1.96TeV
Author(s):Thompson, Gregory A.
Director of Research:Pitts, Kevin T.
Doctoral Committee Chair(s):Liss, Tony M.
Doctoral Committee Member(s):Pitts, Kevin T.; Gladding, G.E.; Stack, John D.
Department / Program:Physics
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):CP Asymmetry
Collider Detector at Fermilab (CDF)
CP (charge particle)
Abstract:A measurement of direct CP asymmetry is performed using 6fb−1 of pp̄ collisions at √s = 1.96TeV from the CDF detector at the Fermi National Accelerator Laboratory. Approximately 80,000 B− → J/ K− (and charge conjugate) events were selected on the dimuon trigger and the yields were determined using a simultaneous mass and lifetime fit. After corrections, a measurement of ACP = 0.0034 ± 0.0043(stat.) ± 0.0060(syst.) is obtained, which is consistent with the SM prediction and previous measurements at DØ and the B factories.
Issue Date:2011-08-25
Rights Information:Copyright 2011 Gregory Andrew Thompson
Date Available in IDEALS:2011-08-25
Date Deposited:2011-08

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