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Topological studies of light-flavor hadron production in high multiplicity pp collisions with ALICE at the LHC
Recent measurements in high-multiplicity pp and p-A collisions have revealed that these small collision systems exhibit collective-like behaviour, formerly thought to be achievable only in heavy-ion collisions. To understand the origins of these unexpected phenomena, event shape observables can be e...
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Lenguaje: | eng |
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SISSA
2020
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Acceso en línea: | https://dx.doi.org/10.22323/1.390.0512 http://cds.cern.ch/record/2743480 |
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author | Tripathy, Sushanta |
author_facet | Tripathy, Sushanta |
author_sort | Tripathy, Sushanta |
collection | CERN |
description | Recent measurements in high-multiplicity pp and p-A collisions have revealed that these small collision systems exhibit collective-like behaviour, formerly thought to be achievable only in heavy-ion collisions. To understand the origins of these unexpected phenomena, event shape observables can be exploited, as they serve as a powerful tool to disentangle soft and hard contributions to particle production. Here, results on the production of light flavor hadrons for different classes of unweighted transverse spherocity ($S_{\rm 0}^{p_{\rm T}= 1}$) and relative transverse activity ($R_{\rm{T}}$) in high multiplicity pp collisions at $\sqrt{s}$ = 13 $\textrm{TeV}$ measured with the ALICE detector are presented. Hadron-to-pion ratios in different $S_{\rm 0}^{p_{\rm T}= 1}$ and $R_{\rm{T}}$ classes are also presented and compared with state-of-the-art QCD-inspired Monte Carlo event generators. The evolution of charged particle average transverse momentum ($\langle p_{\rm T}\rangle$) with multiplicity and $S_{\rm 0}^{p_{\rm T}= 1}$ is also discussed. In addition, the system size dependence of charged particle production in pp, p-Pb, and Pb-Pb collisions at $\sqrt{s_{\rm NN}}$= 5.02 TeV is presented. Finally, within the same approach, we present a search for jet quenching behavior in small collision systems. |
id | cern-2743480 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2020 |
publisher | SISSA |
record_format | invenio |
spelling | cern-27434802021-05-12T02:06:22Zdoi:10.22323/1.390.0512http://cds.cern.ch/record/2743480engTripathy, SushantaTopological studies of light-flavor hadron production in high multiplicity pp collisions with ALICE at the LHCnucl-exNuclear Physics - Experimenthep-exParticle Physics - ExperimentRecent measurements in high-multiplicity pp and p-A collisions have revealed that these small collision systems exhibit collective-like behaviour, formerly thought to be achievable only in heavy-ion collisions. To understand the origins of these unexpected phenomena, event shape observables can be exploited, as they serve as a powerful tool to disentangle soft and hard contributions to particle production. Here, results on the production of light flavor hadrons for different classes of unweighted transverse spherocity ($S_{\rm 0}^{p_{\rm T}= 1}$) and relative transverse activity ($R_{\rm{T}}$) in high multiplicity pp collisions at $\sqrt{s}$ = 13 $\textrm{TeV}$ measured with the ALICE detector are presented. Hadron-to-pion ratios in different $S_{\rm 0}^{p_{\rm T}= 1}$ and $R_{\rm{T}}$ classes are also presented and compared with state-of-the-art QCD-inspired Monte Carlo event generators. The evolution of charged particle average transverse momentum ($\langle p_{\rm T}\rangle$) with multiplicity and $S_{\rm 0}^{p_{\rm T}= 1}$ is also discussed. In addition, the system size dependence of charged particle production in pp, p-Pb, and Pb-Pb collisions at $\sqrt{s_{\rm NN}}$= 5.02 TeV is presented. Finally, within the same approach, we present a search for jet quenching behavior in small collision systems.SISSAarXiv:2011.00741oai:cds.cern.ch:27434802020-10-30 |
spellingShingle | nucl-ex Nuclear Physics - Experiment hep-ex Particle Physics - Experiment Tripathy, Sushanta Topological studies of light-flavor hadron production in high multiplicity pp collisions with ALICE at the LHC |
title | Topological studies of light-flavor hadron production in high multiplicity pp collisions with ALICE at the LHC |
title_full | Topological studies of light-flavor hadron production in high multiplicity pp collisions with ALICE at the LHC |
title_fullStr | Topological studies of light-flavor hadron production in high multiplicity pp collisions with ALICE at the LHC |
title_full_unstemmed | Topological studies of light-flavor hadron production in high multiplicity pp collisions with ALICE at the LHC |
title_short | Topological studies of light-flavor hadron production in high multiplicity pp collisions with ALICE at the LHC |
title_sort | topological studies of light-flavor hadron production in high multiplicity pp collisions with alice at the lhc |
topic | nucl-ex Nuclear Physics - Experiment hep-ex Particle Physics - Experiment |
url | https://dx.doi.org/10.22323/1.390.0512 http://cds.cern.ch/record/2743480 |
work_keys_str_mv | AT tripathysushanta topologicalstudiesoflightflavorhadronproductioninhighmultiplicityppcollisionswithaliceatthelhc |