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| Authors | V.M. Abazov, . et al., L.S. Ancu, S.J. de Jong, F. Filthaut, C.F. Galea, J.G. Hegeman, P. Houben, M.M. Meijer, P. Svoisky, P.J. van den Berg | | Title | Dependence of the tt- production cross section on the transverse momentum of the top quark |
| Journal | Physics Letters B |
| Volume | 693 |
| Year | 2010 |
| Issue | 5 |
| Pages | 515-521 |
| ISSN | 03702693 |
| Faculty | Faculty of Science |
| Institute/dept. | FNWI: Institute for High Energy Physics (IHEF) |
| Abstract | We present a measurement of the differential cross section for t (t) over bar events produced in p (p) over bar collisions at root s = 1.96 TeV as a function of the transverse momentum (p(T)) of the top quark. The selected events contain a high-p(T) lepton (l), a large imbalance in p(T). four or more jets with at least one candidate for a b jet, and correspond to 1 fb(-1) of integrated luminosity recorded with the D0 detector. Objects in the event are associated through a constrained kinematic fit to the t (t) over bar -> WbW (b) over bar -> lvbq (q) over bar' (b) over bar process. Results from next and next-to-next-to-leading-order perturbative QCD calculations agree with the measured differential cross section. Comparisons are also provided to predictions from Monte Carlo event generators using QCD calculations at different levels of precision. |
| Document type | Article |
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