Rights statement: © 2011 The American Physical Society
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Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Determination of the width of the top quark
AU - Abazov, V.
AU - Abbott, B.
AU - Abolins, M.
AU - Acharya, B.
AU - Adams, M.
AU - Adams, T.
AU - Alexeev, G.
AU - Alkhazov, G.
AU - Altona, A.
AU - Alverson, G.
AU - Alves, G.
AU - Ancu, L.
AU - Aoki, M.
AU - Arnoud, Y.
AU - Arov, M.
AU - Askew, A.
AU - Åsman, B.
AU - Atramentov, O.
AU - Avila, C.
AU - BackusMayes, J.
AU - Badaud, F.
AU - Bagby, L.
AU - Baldin, B.
AU - Bandurin, D.
AU - Banerjee, S.
AU - Barberis, E.
AU - Baringer, P.
AU - Barreto, J.
AU - Bartlett, J.
AU - Bassler, U.
AU - Bazterra, V.
AU - Beale, S.
AU - Bean, A.
AU - Begalli, M.
AU - Begel, M.
AU - Belanger-Champagne, C.
AU - Bellantoni, L.
AU - Beri, S.
AU - Bernardi, G.
AU - Bernhard, R.
AU - Bertram, I.
AU - Besançon, M.
AU - Beuselinck, R.
AU - Bezzubov, V.
AU - Borissov, G.
AU - Fox, H.
AU - Love, P.
AU - Price, D.
AU - Ratoff, P.
AU - Sopczak, A.
AU - D0 Collaboration
N1 - © 2011 The American Physical Society
PY - 2011/1/11
Y1 - 2011/1/11
N2 - We extract the total width of the top quark, Gamma_t, from the partial decay width Gamma(t -> W b) measured using the t-channel cross section for single top quark production and from the branching fraction B(t -> W b) measured in ttbar events using up to 2.3 fb^-1 of integrated luminosity collected by the D0 Collaboration at the Tevatron ppbar Collider. The result is Gamma_t = 1.99 +0.69 -0.55 GeV, which translates to a top-quark lifetime of tau_t = (3.3 +1.3 -0.9) x 10^-25 s. Assuming a high mass fourth generation b' quark and unitarity of the four-generation quark-mixing matrix, we set the first upper limit on |Vtb'|
AB - We extract the total width of the top quark, Gamma_t, from the partial decay width Gamma(t -> W b) measured using the t-channel cross section for single top quark production and from the branching fraction B(t -> W b) measured in ttbar events using up to 2.3 fb^-1 of integrated luminosity collected by the D0 Collaboration at the Tevatron ppbar Collider. The result is Gamma_t = 1.99 +0.69 -0.55 GeV, which translates to a top-quark lifetime of tau_t = (3.3 +1.3 -0.9) x 10^-25 s. Assuming a high mass fourth generation b' quark and unitarity of the four-generation quark-mixing matrix, we set the first upper limit on |Vtb'|
KW - hep-ex
U2 - 10.1103/PhysRevLett.106.022001
DO - 10.1103/PhysRevLett.106.022001
M3 - Journal article
VL - 106
JO - Physical review letters
JF - Physical review letters
SN - 1079-7114
IS - 2
M1 - 022001
ER -