TY - JOUR
T1 - Measurement of B (t →wb) /B (t →wq) in top-quark-pair decays using dilepton events and the full CDF run II data set
AU - CDF Collaboration
AU - Aaltonen, T.
AU - Amerio, S.
AU - Amidei, D.
AU - Anastassov, A.
AU - Annovi, A.
AU - Antos, J.
AU - Apollinari, G.
AU - Appel, J. A.
AU - Arisawa, T.
AU - Artikov, A.
AU - Asaadi, J.
AU - Ashmanskas, W.
AU - Auerbach, B.
AU - Aurisano, A.
AU - Azfar, F.
AU - Badgett, W.
AU - Bae, T.
AU - Barbaro-Galtieri, A.
AU - Barnes, V. E.
AU - Barnett, B. A.
AU - Barria, P.
AU - Bartos, P.
AU - Bauce, M.
AU - Bedeschi, F.
AU - Behari, S.
AU - Bellettini, G.
AU - Bellinger, J.
AU - Benjamin, D.
AU - Beretvas, A.
AU - Bhatti, A.
AU - Bland, K. R.
AU - Blumenfeld, B.
AU - Bocci, A.
AU - Bodek, A.
AU - Bortoletto, D.
AU - Boudreau, J.
AU - Boveia, A.
AU - Brigliadori, L.
AU - Bromberg, C.
AU - Brucken, E.
AU - Budagov, J.
AU - Budd, H. S.
AU - Burkett, K.
AU - Busetto, G.
AU - Bussey, P.
AU - Butti, P.
AU - Buzatu, A.
AU - Calamba, A.
AU - Camarda, S.
AU - Moon, C. S.
PY - 2014/6/2
Y1 - 2014/6/2
N2 - We present a measurement of the ratio of the top-quark branching fractions R=B(t→Wb)/B(t→Wq), where q represents any quark flavor, in events with two charged leptons, imbalance in total transverse energy, and at least two jets. The measurement uses proton-antiproton collision data at center-of-mass energy 1.96 TeV, corresponding to an integrated luminosity of 8.7fb-1 collected with the Collider Detector at Fermilab during Run II of the Tevatron. We measure R to be 0.87±0.07, and extract the magnitude of the top-bottom quark coupling to be |Vtb|=0.93±0.04, assuming three generations of quarks. Under these assumptions, a lower limit of |Vtb|>0.85(0.87) at 95% (90%) credibility level is set.
AB - We present a measurement of the ratio of the top-quark branching fractions R=B(t→Wb)/B(t→Wq), where q represents any quark flavor, in events with two charged leptons, imbalance in total transverse energy, and at least two jets. The measurement uses proton-antiproton collision data at center-of-mass energy 1.96 TeV, corresponding to an integrated luminosity of 8.7fb-1 collected with the Collider Detector at Fermilab during Run II of the Tevatron. We measure R to be 0.87±0.07, and extract the magnitude of the top-bottom quark coupling to be |Vtb|=0.93±0.04, assuming three generations of quarks. Under these assumptions, a lower limit of |Vtb|>0.85(0.87) at 95% (90%) credibility level is set.
UR - http://www.scopus.com/inward/record.url?scp=84901919886&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.112.221801
DO - 10.1103/PhysRevLett.112.221801
M3 - Article
AN - SCOPUS:84901919886
SN - 0031-9007
VL - 112
JO - Physical Review Letters
JF - Physical Review Letters
IS - 22
M1 - 221801
ER -