23,937 research outputs found
Standard Model Higgs boson production in association with a top anti-top pair at NLO with parton showering
We present predictions for the production cross section of a Standard Model
Higgs boson in association with a top-antitop pair at next-to-leading order
accuracy using matrix elements obtained from the HELAC-Oneloop package. The NLO
prediction was interfaced to the PYTHIA and HERWIG shower Monte Carlo programs
with the help of POWHEG-Box, allowing for decays of massive particles,
showering and hadronization, thus leading to final results at the hadron level.Comment: 14 pages, 9 figure
Estimating end-use demand: A Bayesian approach
Eliminating negative end-use or appliance consumption estimates and incorporating direct metering information into the process of generating these estimates; these are two important aspects, of conditional demand analysis (CDA) that will be the focus of this raper. In both cases a Bayesian approach seems a natural way of proceeding. What needs to be investigated is whether it is also a viable and effective approach. In addition, such a framework naturally lends itself to prediction. Our application involves the estimation of electrical appliance consumptions for a sample of Australian households. This application is designed to illustrate the viability of a full Bayesian analysis of the problem
Top quark pair production in association with a jet with NLO parton showering
We compute the production cross section of a top-antitop pair in association
with a jet at hadron colliders at next-to-leading order accuracy matched with
parton shower algorithms to make predictions at the hadron level. The parton
shower allows for including the decay of the top quarks at the leading order
accuracy. We use a framework based on three well established numerical codes,
the POWHEG-BOX, used for the calculation of the cross section, HELAC, which
generates the matrix elements for the Born-level, real emission and the virtual
part, and finally a parton shower program, such as PYTHIA or HERWIG, which
generate the parton-shower and hadronization.Comment: changed title, bug in HERWIG analysis corrected, published version
with restructured discussion, but main conclusions unchange
- …