Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-55348
Ahrens, V; Ferroglia, A; Neubert, M; Pecjak, B D; Yang, L L (2011). Precision predictions for the tt ̄ production cross section at hadron colliders. Physics Letters B, 703(2):135-141.
View at publisher
We make use of recent results in effective theory and higher-order perturbative calculations to improve the theoretical predictions of the top-quark pair production cross section at hadron colliders. In particular, we supplement the fixed-order NLO calculation with higher-order corrections from soft gluon resummation at NNLL accuracy. Uncertainties due to power corrections to the soft limit are estimated by combining results from single-particle inclusive and pair invariant-mass kinematics. We present our predictions as functions of the top-quark mass in both the pole scheme and the MS scheme. We also discuss the merits of using threshold masses as an alternative, and calculate the cross section with the top-quark mass defined in the 1S scheme as an illustrative example.
34 downloads since deposited on 19 Feb 2012
14 downloads since 12 months
|Other titles:||Precision predictions for the t+t(bar) production cross section at hadron colliders|
|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||07 Faculty of Science > Institute for Computational Science|
|Dewey Decimal Classification:||530 Physics|
|Deposited On:||19 Feb 2012 17:23|
|Last Modified:||29 Nov 2013 19:12|
|ISSN:||0370-2693 (P) 1873-2445 (E)|
Users (please log in): suggest update or correction for this item
Repository Staff Only: item control page