Open b production at LHC and Parton Shower Effects
H. Jung (DESY, CERN, U Antwerp) M. Kraemer (DESY), A.V. Lipatov (SINP, Moscow), N.P. Zotov (SINP Moscow)
TL;DR
This paper provides predictions for beauty quark and b-jet production at the LHC using the kT-factorization approach, analyzing parton shower effects and comparing results with CMS data.
Contribution
It introduces a comprehensive calculation framework combining Monte Carlo and numerical methods with unintegrated gluon densities for LHC energies.
Findings
Predictions agree with CMS data within uncertainties
Parton shower effects significantly impact the results
Uncertainties from gluon density models are quantified
Abstract
We present hadron-level predictions from the Monte Carlo generator Cascade and numerical level calculations of beauty quark and inclusive b-jet production in the framework of the kT -factorization QCD approach for CERN LHC energies. The unintegrated gluon densities in a proton are determined using the CCFM evolution equation and the Kimber- Martin-Ryskin (KMR) prescription. We study the theoretical uncertainties of our calcula- tions and investigate the effects coming from parton showers in initial and final states. Our predictions are compared with the recent data taken by the CMS collaboration.
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Taxonomy
TopicsParticle physics theoretical and experimental studies · High-Energy Particle Collisions Research · Quantum Chromodynamics and Particle Interactions