Browsing by Author "Kidonakis, Nikolaos"
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Anomalous tqV couplings and FCNC top quark production.
Kidonakis, Nikolaos; Belyaev, Alexander (HEP, Cavendish Laboratory, University of Cambridge, 200407)We discuss FCNC top quark production via anomalous tqV couplings at the Tevatron and HERA colliders. We calculate higherorder softgluon corrections to such processes and demonstrate the stabilization of the cross section ... 
Beauty and charm production in fixed target experiments.
Kidonakis, Nikolaos; Vogt, Ramona (HEP, Cavendish Laboratory, University of Cambridge, 200405)We present calculations of NNLO threshold corrections for beauty and charm production in −p and pp interactions at fixedtarget experiments. 
Charged Higgs production with a top quark at the LHC.
Kidonakis, Nikolaos (HEP, Cavendish Laboratory, University of Cambridge, 200406)I discuss charged Higgs production via the process bg ! tH− at the LHC. I show that the cross section is dominated by softgluon corrections and I provide results for its dependence on the charged Higgs mass and on the ... 
FCNC top quark production via anomalous tqV couplings beyond leading order.
Kidonakis, Nikolaos; Belyaev, Alexander (HEP, Cavendish Laboratory, University of Cambridge, 200310)We calculate flavorchanging neutralcurrent (FCNC) processes involving topquark production via anomalous tqV couplings at the Tevatron and HERA colliders. We cover the FCNC processes p¯p → tZ, p¯p → t , p¯p → tt, and ... 
A Master formula for NNLO soft and virtual QCD corrections.
Kidonakis, Nikolaos (HEP, Cavendish Laboratory, University of Cambridge, 200306)I present a master formula for the nexttonexttoleading order (NNLO) soft and virtual QCD corrections for any process in hadronhadron and leptonhadron colliders. The formula is derived from a unified threshold resummation ... 
Nexttonexttoleading order soft and virtual corrections for QCD, Higgs and SUSY processes.
Kidonakis, Nikolaos (HEP, Cavendish Laboratory, University of Cambridge, 200401)I review recent advances in the calculation of higherorder softgluon corrections for a variety of QCD, Higgs, and SUSY processes in hadron colliders. A unified approach and master formulas for nexttonexttoleading ... 
Nexttonexttoleading order soft gluon corrections in direct photon production.
Kidonakis, Nikolaos; Owens, J. F. (HEP, Cavendish Laboratory, University of Cambridge, 200307)Previous work on softgluon resummation for direct photon production is extended to include additional subleading logarithmic terms through O( 3s ) and some representative comparisons are made to experimental results ... 
Nexttonexttoleading order soft gluon corrections in top quark hadroproduction.
Kidonakis, Nikolaos; Vogt, Ramona (HEP, Cavendish Laboratory, University of Cambridge, 200308)We calculate nexttonexttoleading order softgluon corrections to top quark total and differential cross sections in hadron colliders. We increase the accuracy of our previous estimates by including additional subleading ... 
NNLO soft and virtual corrections for electroweak, Higgs, and SUSY processes.
Kidonakis, Nikolaos (HEP, Cavendish Laboratory, University of Cambridge, 200307)I present applications of a master formula for nexttonexttoleading order soft and virtual QCD corrections to various electroweak, Higgs, and supersymmetric processes. They include DrellYan and charged Higgs production, ... 
Resummation of transverse momentum and mass logarithms in DIS heavy quark production.
Nadolsky, Pavel M.; Kidonakis, Nikolaos; Olness, Frederick I.; Yuan, C. P. (HEP, Cavendish Laboratory, University of Cambridge, 200210) 
Threshold corrections in bottom and charm quark hadroproduction at nexttonexttoleading order.
Kidonakis, Nikolaos; Vogt, Ramona (HEP, Cavendish Laboratory, University of Cambridge, 200401)We calculate threshold softgluon corrections to total cross sections and transverse momentum distributions for bottom and charm quark production in fixedtarget experiments, considering both pp and −p interactions. We ... 
Threshold effects in charm hadroproduction.
Kidonakis, Nikolaos; Laenen, Eric; Moch, Sven; Vogt, Ramona (HEP, Cavendish Laboratory, University of Cambridge, 200212)We describe calculations of cc production to nexttonexttoleading order (NNLO) and nexttonexttoleading logarithm (NNLL) near threshold in pp and −p interactions. We study the relevance of these calculations for ... 
Top quark production at the Tevatron at NNLO.
Kidonakis, Nikolaos; Vogt, Ramona (HEP, Cavendish Laboratory, University of Cambridge, 200309)We present results for top quark production at the Tevatron including nexttonextto leading order (NNLO) softgluon corrections. We show the stability of the cross section with respect to kinematics choice and scale ... 
Two loop and N loop eikonal vertex corrections.
Kidonakis, Nikolaos (HEP, Cavendish Laboratory, University of Cambridge, 200307)I present calculations of twoloop vertex corrections with massive and massless partons in the eikonal approximation. I show that the nloop result for the UV poles can be given in terms of the oneloop calculation. 
A Unified approach to NNLO soft and virtual corrections in electroweak, Higgs, QCD, and SUSY processes.
Kidonakis, Nikolaos (HEP, Cavendish Laboratory, University of Cambridge, 200303)I present a unified approach to calculating the nexttonexttoleading order (NNLO) soft and virtual QCD corrections to cross sections for electroweak, Higgs, QCD, and SUSY processes. I derive master formulas that can ... 
W Boson production at large transverse momentum.
Kidonakis, Nikolaos; Sabio Vera, Agustin (HEP, Cavendish Laboratory, University of Cambridge, 200405)The production of W bosons at large transverse momentum in p¯p collisions is studied. The nexttoleading order cross section in this region is dominated by threshold softgluon corrections. The transverse momentum ... 
W hadroproduction at large transverse momentum beyond nexttoleading order.
Kidonakis, Nikolaos; Sabio Vera, Agustin (HEP, Cavendish Laboratory, University of Cambridge, 200311)We study the production of W bosons at large transverse momentum in p¯p collisions. We show that the nexttoleading order cross section at large transverse momentum is dominated by threshold softgluon corrections. We ...