Conveners
NLO & QCD
- Ian Lewis (Brookhaven National Laboratory)
Anastasia Bierweiler
06/05/2013, 14:00
NLO & QCD
parallel talk
Vector-boson pair production is of great phenomenological importance
at the Large Hadron Collider. These processes not only constitute an
important irreducible background to Higgs and New Physics searches;
since the leptonic decay products can be reconstructed well, pair pro-
duction of weak bosons provides an excellent opportunity to probe the
non-abelian structure of the Standard Model...
Bastian Feigl
(KIT)
06/05/2013, 14:15
NLO & QCD
parallel talk
Electroweak gauge boson production is usually done with leptonic decays of the bosons, as the decay leptons allow for a good background suppression at hadron colliders. Nevertheless, semileptonic decay modes provide the opportunity of gaining additional sensitivity from the experiment.
We present the implementation of semileptonic decay modes of diboson production, triboson production and...
Wai Kin Lai
(University of Pittsburgh)
06/05/2013, 14:30
NLO & QCD
parallel talk
Fixed-order QCD radiative corrections to the vector-boson and Higgs associated production channels, pp → V H (V = W ± , Z), at hadron colliders are well understood. We combine higher order perturbative QCD calculations with soft-gluon resummation of both threshold logarithms and logarithms which are important at low transverse momentum of the V H pair. We study the effects of both types of...
Mr
Jens Hoff
(KIT, Karlsruhe)
06/05/2013, 14:45
NLO & QCD
parallel talk
This talk considers Higgs boson production at hadron colliders via gluon fusion and the computation of higher order terms in the regularization parameter $\epsilon$. In particular, the next-to-next-to-leading order cross section needs to be evaluated including order $\epsilon$ terms. These results are used to compute all convolutions with the splitting functions entering the...
xiaohui liu
(ANL)
06/05/2013, 15:00
NLO & QCD
parallel talk
We study the processes with a fixed number of jets at the LHC. The jets are defined using the standard hadronic anti-kT algorithm, and the fixed number of jets is obtained by imposing a jet veto on the
final QCD activities. A formalism allows a NLL' resummation over the large jet veto logs is derived. We apply the formalism to the higgs+1jet to see how it can help to reduce the theoretical...
Dr
Aleksander Kusina
(Southern Methodist University)
06/05/2013, 15:15
NLO & QCD
parallel talk
We update nCTEQ global analysis of Parton Distribution Functions
(PDFs). We use global Chi2 minimization and Hessian formalism to
determine the best fit and the PDF error set. The fit is performed at
next-to-leading order (NLO) using neutral current deeply inelastic
scattering (DIS), and Drell-Yan data for several nuclear targets.
The results are also ready to be used in analysis of the...
Cen Zhang
(CP3 Université catholique de Louvain)
06/05/2013, 15:30
Top Physics
parallel talk
I will present a calculation of top quark decay within effective field theory approach at NLO in QCD. The main purpose is to understand how to systematically include QCD corrections to the dimension-six operators. I will focus on two decay channels: 1) t->b+W with W boson in different helicity states, and 2) the flavor changing decay t->c+H. The operator mixing effects will also be discussed.
Simon Freedman
(U)
06/05/2013, 15:45
Top Physics
parallel talk
We calculate the subleading corrections to the thrust rate using Soft-Collinear Effective Theory to factorize the rate and match onto jet and soft operators that describe the degrees of freedom of the relevant scales. We work in the perturbative regime where all the scales are well above \Lambda_QCD. The thrust rate involves an incomplete sum over final states that is enforced by a measurement...
