Study of Monte Carlo event generators for proton-proton collisions at LHC energies in the forward region

作     者：Alexandru Catalin ENE Alexandru JIPA Lavinia-Elena GIUBEGA 

作者机构：Department of Elementary Particles PhysicsHoria Hulubei National Institute for R&D in Physics and Nuclear Engineering (IFIN-HH)Reactorului 30RO- 077125P.O.B. MG-6Magurele-BucharestRomania Faculty of Physics of the University of BucharestAtomistilor 405RO-077125P.O.B. MG-11Magurele-BucharestRomania 

出 版 物：《Chinese Physics C》 (中国物理C（英文版）)

年 卷 期：2019年第43卷第8期

页      面：1-14页

核心收录：

学科分类：07[理学] 0702[理学-物理学] 

基　　金：Supported by the following projects:Proiect IDEI(56/07.10.2011) the IFA project Romania-CERN(7/16.03.2016)(LHCb-Ro) 

主　　题：phenomenological models event generators LHCb 

摘      要：In this paper we present a comparative study between PYTHIA, EPOS, QGSJET, and SIBYLL generators. The global event observables considered are the charged energy flow, charged particle distributions, charged hadron production ratios and V^0 ratios. The study is performed in the LHCb and TOTEM fiducial phase spaces on minimum bias simulated data samples for pp collisions at = 7 TeV , using the reference measurements from these experiments. In the majority of cases, the measurements are within a band defined by the most extreme predictions. The observed differences between the predictions and the measurements seem to be, in most part, caused by extrapolation from the central pseudorapidity region (|η| 2.5), in which the generators were mainly tuned.