XXV DAE-BRNS High Energy Physics Symposium 2022

Non-perturbative corrections estimated from Monte Carlo event generator HERWIG7 for multi-differential dijet cross-sections in proton-proton collisions at √s = 13 TeV

16 Dec 2022, 14:00

1h

LHC Foyer (IISER Mohali)

Poster Poster - 4

Speaker

Aayushi Singla (Panjab University (IN))

Description

We present a study of contributions from non-perturbative (NP) effects which include multi-parton interactions (MPI), and hadronization effects in Monte Carlo (MC) event generator HERWIG7 for dijet final states in proton-proton collisions at √s = 13 TeV. As the most precise higher-order predictions of perturbative Quantum Chromodynamics (pQCD) usually do not account for such effects, these must be estimated using MC event generators when compared to experimental data. We report the derivation of these NP effects and their uncertainties for triple and double-differential dijet cross-sections in proton-proton collisions at √s = 13 TeV with the newest release of the HERWIG7 MC event generator at leading-order (LO) and next-to-leading (NLO) with matched parton showers. For this study, around 500M events were generated with HERWIG 7.2 and analyzed using the Rivet framework. The primary sources of NP effects, hadronization, and MPI were also studied separately.