Dependence of the $t\bar{t}$ Production Cross Section on the Transverse Momentum of the Top Quark
(2010) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics — Vol. 693, p. 515 (2010)
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- Abstract
- We present a measurement of the differential cross section for tt¯ events produced in pp¯ collisions at s=1.96 TeV as a function of the transverse momentum ( pT ) of the top quark. The selected events contain a high- pT lepton ( ℓ ), a large imbalance in pT , four or more jets with at least one candidate for a b jet, and correspond to 1 fb −1 of integrated luminosity marc:recorded with the D0 detector. Objects in the event are associated through a constrained kinematic fit to the tt¯→WbWb¯→ℓνbqq¯′b¯ 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.
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Tanasijczuk, A. J., D0, & et al. (2010). Dependence of the $t\bar{t}$ Production Cross Section on the Transverse Momentum of the Top Quark. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 693, 515. https://doi.org/10.1016/j.physletb.2010.09.011 (Original work published 2010)