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Insight into ${K}^*(892)^{0}$ production in pp collisions as a function of collision energy, event-topology, and multiplicity with ALICE at the LHC

Hadronic resonances are short-lived particles whose lifetimes are comparable to the hadronic phase lifetime of the system produced in ultra-relativistic nucleon$-$nucleon or nuclear collisions. These resonances are sensitive to the hadronic phase effects such as re-scattering and regeneration proces...

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Autor principal: Rath, Rutuparna
Lenguaje:eng
Publicado: SISSA 2021
Materias:
Acceso en línea:https://dx.doi.org/10.22323/1.397.0236
http://cds.cern.ch/record/2802168
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author Rath, Rutuparna
author_facet Rath, Rutuparna
author_sort Rath, Rutuparna
collection CERN
description Hadronic resonances are short-lived particles whose lifetimes are comparable to the hadronic phase lifetime of the system produced in ultra-relativistic nucleon$-$nucleon or nuclear collisions. These resonances are sensitive to the hadronic phase effects such as re-scattering and regeneration processes which might affect the resonance yields and shape of the transverse momentum spectra. In addition, event shape observables like transverse spherocity are sensitive to the hard and soft processes and they represent a useful tool to separate the isotropic from jetty-dominated events in proton$-$proton (pp) collisions. A double differential study of transverse spherocity and multiplicity allows us to understand the resonance production mechanism with event topology and system size, respectively. Furthermore, the measurements in small systems are used as a reference for heavy-ion collisions and are helpful for the tuning of Quantum Chromodynamics (QCD) inspired event generators. In this proceeding, we present recent results on $\rm{K}^*(892)^{0}$ obtained by the ALICE Collaboration in pp collisions at several collision energies, event multiplicities, and as a function of transverse spherocity. The results include the transverse momentum spectra, yields, and their ratio to long-lived particles. The measurements are compared with model predictions from PYTHIA8, EPOS-LHC, and DIPSY.
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spelling cern-28021682022-02-23T23:27:28Zdoi:10.22323/1.397.0236http://cds.cern.ch/record/2802168engRath, RutuparnaInsight into ${K}^*(892)^{0}$ production in pp collisions as a function of collision energy, event-topology, and multiplicity with ALICE at the LHCParticle Physics - ExperimentHadronic resonances are short-lived particles whose lifetimes are comparable to the hadronic phase lifetime of the system produced in ultra-relativistic nucleon$-$nucleon or nuclear collisions. These resonances are sensitive to the hadronic phase effects such as re-scattering and regeneration processes which might affect the resonance yields and shape of the transverse momentum spectra. In addition, event shape observables like transverse spherocity are sensitive to the hard and soft processes and they represent a useful tool to separate the isotropic from jetty-dominated events in proton$-$proton (pp) collisions. A double differential study of transverse spherocity and multiplicity allows us to understand the resonance production mechanism with event topology and system size, respectively. Furthermore, the measurements in small systems are used as a reference for heavy-ion collisions and are helpful for the tuning of Quantum Chromodynamics (QCD) inspired event generators. In this proceeding, we present recent results on $\rm{K}^*(892)^{0}$ obtained by the ALICE Collaboration in pp collisions at several collision energies, event multiplicities, and as a function of transverse spherocity. The results include the transverse momentum spectra, yields, and their ratio to long-lived particles. The measurements are compared with model predictions from PYTHIA8, EPOS-LHC, and DIPSY.SISSAoai:cds.cern.ch:28021682021
spellingShingle Particle Physics - Experiment
Rath, Rutuparna
Insight into ${K}^*(892)^{0}$ production in pp collisions as a function of collision energy, event-topology, and multiplicity with ALICE at the LHC
title Insight into ${K}^*(892)^{0}$ production in pp collisions as a function of collision energy, event-topology, and multiplicity with ALICE at the LHC
title_full Insight into ${K}^*(892)^{0}$ production in pp collisions as a function of collision energy, event-topology, and multiplicity with ALICE at the LHC
title_fullStr Insight into ${K}^*(892)^{0}$ production in pp collisions as a function of collision energy, event-topology, and multiplicity with ALICE at the LHC
title_full_unstemmed Insight into ${K}^*(892)^{0}$ production in pp collisions as a function of collision energy, event-topology, and multiplicity with ALICE at the LHC
title_short Insight into ${K}^*(892)^{0}$ production in pp collisions as a function of collision energy, event-topology, and multiplicity with ALICE at the LHC
title_sort insight into ${k}^*(892)^{0}$ production in pp collisions as a function of collision energy, event-topology, and multiplicity with alice at the lhc
topic Particle Physics - Experiment
url https://dx.doi.org/10.22323/1.397.0236
http://cds.cern.ch/record/2802168
work_keys_str_mv AT rathrutuparna insightintok8920productioninppcollisionsasafunctionofcollisionenergyeventtopologyandmultiplicitywithaliceatthelhc