t pair hadroproduction in association with a heavy boson at the NLO QCD accuracy + Parton Shower

5th International Workshop on Top Quark Physics

Garzelli, M.V.^1 ; Kardos, A.^2,3 ; Papadopoulos, C.G.^4,5 ; Trócsányi, Z.^2

Laboratory for Astroparticle Physics, University of Nova Gorica, SI 5000 Nova Gorica, Slovenia^1

Institute of Physics, MTA-DE Particle Physics Research Group, University of Debrecen, PO Box 105, H 4010 Debrecen, Hungary^2

INFN, Sezione di Milano-Bicocca, I 20126 Milano, Italy^3

Institute of Nuclear Physics, NCSR, GR 15310 Athens, Greece^4

CERN, TH-Unit, CH 1211 Geneva 23, Switzerland^5

关键词: Decay channels;    Heavy particles;    Parton showers;    Phenomenological analysis;    Total and differential cross section;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/452/1/012046/pdf
DOI  :  10.1088/1742-6596/452/1/012046

来源: IOP

【 摘 要 】

The PowHel framework allows to make predictions of total and differential cross-sections of multiparticle hadroproduction processes at both NLO QCD accuracy and NLO QCD matched to Parton Shower, on the basis of the interface between the P0WHEG-B0X and HELAC-NL0 codes. It has already been applied to study several processes involving a t pair in association with a third particle or hadronic jet. Our most recent predictions concern tV hadroproduction (with V W or Z), at both parton and hadron level, by considering different decay channels (hadronic and leptonic) of the heavy particles. In particular, we show the results of our phenomenological analyses under the same system of cuts also recently adopted by the CMS collaboration at LHC.