Rights statement: © 2011 American Physical Society
Final published version, 458 KB, PDF document
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Forward-backward asymmetry in top quark-antiquark production
AU - Abazov, V. M.
AU - Abbott, B.
AU - Acharya, B. S.
AU - Adams, M.
AU - Adams, T.
AU - Alexeev, G. D.
AU - Alkhazov, G.
AU - Alton, A.
AU - Alverson, G.
AU - Alves, G. A.
AU - Aoki, M.
AU - Arov, M.
AU - Askew, A.
AU - Asman, B.
AU - Atramentov, O.
AU - Avila, C.
AU - BackusMayes, J.
AU - Badaud, F.
AU - Bagby, L.
AU - Baldin, B.
AU - Bandurin, D. V.
AU - Banerjee, S.
AU - Barberis, E.
AU - Baringer, P.
AU - Barreto, J.
AU - Bartlett, J. F.
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. B.
AU - Bernardi, G.
AU - Bernhard, R.
AU - Bertram, I.
AU - Besancon, M.
AU - Beuselinck, R.
AU - Bezzubov, V. A.
AU - Bhat, P. C.
AU - Bhatnagar, V.
AU - Blazey, G.
AU - Borissov, G.
AU - Fox, H.
AU - Price, D.
AU - Ratoff, P. N.
AU - Ross, A.
AU - Williams, M. R. J.
AU - D0 Collaboration
N1 - © 2011 American Physical Society
PY - 2011/12/12
Y1 - 2011/12/12
N2 - We present a measurement of forward-backward asymmetry in top quark-antiquark production in proton-antiproton collisions in the final state containing a lepton and at least four jets. Using a data set corresponding to an integrated luminosity of 5.4 fb(-1), collected by the D0 experiment at the Fermilab Tevatron Collider, we measure the t (t) over bar forward-backward asymmetry to be (9.2 +/- 3.7)% at the reconstruction level. When corrected for detector acceptance and resolution, the asymmetry is found to be (19.6 +/- 6.5)%. We also measure a corrected asymmetry based on the lepton from a top quark decay, found to be (15.2 +/- 4.0)%. The results are compared to predictions based on the next-to-leading-order QCD generator MC@NLO. The sensitivity of the measured and predicted asymmetries to the modeling of gluon radiation is discussed.
AB - We present a measurement of forward-backward asymmetry in top quark-antiquark production in proton-antiproton collisions in the final state containing a lepton and at least four jets. Using a data set corresponding to an integrated luminosity of 5.4 fb(-1), collected by the D0 experiment at the Fermilab Tevatron Collider, we measure the t (t) over bar forward-backward asymmetry to be (9.2 +/- 3.7)% at the reconstruction level. When corrected for detector acceptance and resolution, the asymmetry is found to be (19.6 +/- 6.5)%. We also measure a corrected asymmetry based on the lepton from a top quark decay, found to be (15.2 +/- 4.0)%. The results are compared to predictions based on the next-to-leading-order QCD generator MC@NLO. The sensitivity of the measured and predicted asymmetries to the modeling of gluon radiation is discussed.
UR - http://www.scopus.com/inward/record.url?scp=84855282498&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.84.112005
DO - 10.1103/PhysRevD.84.112005
M3 - Journal article
VL - 84
SP - -
JO - Physical Review D
JF - Physical Review D
SN - 1550-7998
IS - 11
M1 - 112005
ER -