Next-to-leading-order predictions for t-channel single-top production at hadron colliders Export

@article{citeulike:4129591, abstract = {We present the predictions at next-to-leading order (NLO) in the strong coupling for the single-top cross section in the t channel at the Tevatron and the LHC. Our calculation starts from the 2 -\> 3 Born amplitude g q -\> t bbar q', keeping the b-quark mass non-zero. A comparison is performed with a traditional NLO calculation of this channel based on the 2 -\> 2 Born process with a bottom quark in the initial state. In particular, the effect of using kinematic approximations and resumming logarithms of the form log(Q^2/m\_b^2) in the 2 -\> 2 process is assessed. Our results show that the 2 -\> 3 calculation is very well behaved and in substantial agreement with the predictions based on the 2 -\> 2 process.}, archivePrefix = {arXiv}, author = {Campbell, John M. and Frederix, Rikkert and Maltoni, Fabio and Tramontano, Francesco}, citeulike-article-id = {4129591}, citeulike-linkout-0 = {http://arxiv.org/abs/0903.0005}, citeulike-linkout-1 = {http://arxiv.org/pdf/0903.0005}, citeulike-linkout-2 = {http://dx.doi.org/10.1103/PhysRevLett.102.182003}, day = {1}, doi = {10.1103/PhysRevLett.102.182003}, eprint = {0903.0005}, keywords = {heavy, monte\_carlo, nlo, top}, month = {May}, posted-at = {2009-10-16 17:54:54}, priority = {2}, title = {Next-to-leading-order predictions for t-channel single-top production at hadron colliders}, url = {http://dx.doi.org/10.1103/PhysRevLett.102.182003}, year = {2009} }

TY - JOUR ID - citeulike:4129591 L3 - citeulike-article-id:4129591 N2 - We present the predictions at next-to-leading order (NLO) in the strong coupling for the single-top cross section in the t channel at the Tevatron and the LHC. Our calculation starts from the 2 -> 3 Born amplitude g q -> t bbar q', keeping the b-quark mass non-zero. A comparison is performed with a traditional NLO calculation of this channel based on the 2 -> 2 Born process with a bottom quark in the initial state. In particular, the effect of using kinematic approximations and resumming logarithms of the form log(Q^2/m_b^2) in the 2 -> 2 process is assessed. Our results show that the 2 -> 3 calculation is very well behaved and in substantial agreement with the predictions based on the 2 -> 2 process. TI - Next-to-leading-order predictions for t-channel single-top production at hadron colliders KW - heavy KW - monte_carlo KW - nlo KW - top AU - Campbell, John AU - Frederix, Rikkert AU - Maltoni, Fabio AU - Tramontano, Francesco PY - 2009/May/01/ UR - http://dx.doi.org/10.1103/PhysRevLett.102.182003 ER -