Cargando…

Strange and identified hadron production at the LHC with ALICE

The ALICE detector was designed to identify hadrons over a wide range of transverse momentum at mid-rapidity. Here measurements of light charged ({\pi}, K, p) and neutral ({\Lambda}, K0S) hadrons in Pb-Pb collisions at \surdsNN = 2.76 TeV are presented with additional data from a pp \surds = 7 TeV....

Descripción completa

Detalles Bibliográficos
Autor principal: Barnby, L.S.
Lenguaje:eng
Publicado: 2011
Materias:
Acceso en línea:https://dx.doi.org/10.1063/1.3692201
http://cds.cern.ch/record/1392225
_version_ 1780923431225655296
author Barnby, L.S.
author_facet Barnby, L.S.
author_sort Barnby, L.S.
collection CERN
description The ALICE detector was designed to identify hadrons over a wide range of transverse momentum at mid-rapidity. Here measurements of light charged ({\pi}, K, p) and neutral ({\Lambda}, K0S) hadrons in Pb-Pb collisions at \surdsNN = 2.76 TeV are presented with additional data from a pp \surds = 7 TeV. Such measurements are crucial for understanding the properties of the fireball produced in heavy-ion collisions at the LHC. The particle-type dependence of the spectra and the yields of particles extracted give information on the expansion dynamics and chemical composition respectively. In addition studying the ratio of baryons to mesons may help in understanding the mechanisms by which hadronisation takes place. We find that, when comparing reference at \surdsNN = 200 GeV Au+Au collisions at RHIC, a more strongly expanding system is to data from \surdsNN = 200 GeV Au+Au collisions at RHIC, a more strongly expanding system is created with a similar relative population of hadron species. We also see that collective effects or complex mechanisms responsible for a relative enhancement of baryons have an influence at a much higher pT than was previously seen.
id cern-1392225
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2011
record_format invenio
spelling cern-13922252019-09-30T06:29:59Zdoi:10.1063/1.3692201http://cds.cern.ch/record/1392225engBarnby, L.S.Strange and identified hadron production at the LHC with ALICENuclear Physics - ExperimentThe ALICE detector was designed to identify hadrons over a wide range of transverse momentum at mid-rapidity. Here measurements of light charged ({\pi}, K, p) and neutral ({\Lambda}, K0S) hadrons in Pb-Pb collisions at \surdsNN = 2.76 TeV are presented with additional data from a pp \surds = 7 TeV. Such measurements are crucial for understanding the properties of the fireball produced in heavy-ion collisions at the LHC. The particle-type dependence of the spectra and the yields of particles extracted give information on the expansion dynamics and chemical composition respectively. In addition studying the ratio of baryons to mesons may help in understanding the mechanisms by which hadronisation takes place. We find that, when comparing reference at \surdsNN = 200 GeV Au+Au collisions at RHIC, a more strongly expanding system is to data from \surdsNN = 200 GeV Au+Au collisions at RHIC, a more strongly expanding system is created with a similar relative population of hadron species. We also see that collective effects or complex mechanisms responsible for a relative enhancement of baryons have an influence at a much higher pT than was previously seen.The ALICE detector was designed to identify hadrons over a wide range of transverse momentum at mid-rapidity. Here measurements of light charged (π, K, p) and neutral (Λ, K0S) hadrons in Pb-Pb collisions at SNN = 2.76 TeV are presented with additional data from a pp reference at S = 7 TeV. Such measurements are crucial for understanding the properties of the fireball produced in heavy-ion collisions at the LHC. The particle-type dependence of the spectra and the yields of particles extracted give information on the expansion dynamics and chemical composition respectively. In addition studying the ratio of baryons to mesons may help in understanding the mechanisms by which hadronisation takes place. We find that, when comparing to data from SNN = 200 GeV Au+Au collisions at RHIC, a more strongly expanding system is created with a similar relative population of hadron species. We also see that collective effects or complex mechanisms responsible for a relative enhancement of baryons have an influence at a much higher pT than was previously seen.The ALICE detector was designed to identify hadrons over a wide range of transverse momentum at mid-rapidity. Here measurements of light charged ({\pi}, K, p) and neutral ({\Lambda}, K0S) hadrons in Pb-Pb collisions at sqrt(s_NN) = 2.76 TeV are presented with additional data from a pp reference at sqrt(s) = 7 TeV. Such measurements are crucial for understanding the properties of the fireball produced in heavy-ion collisions at the LHC. The particle-type dependence of the spectra and the yields of particles extracted give information on the expansion dynamics and chemical composition respectively. In addition studying the ratio of baryons to mesons may help in understanding the mechanisms by which hadronisation takes place. We find that, when comparing to data at sqrt(s_NN) = 200 GeV Au+Au collisions at RHIC, a more strongly expanding system is created with a similar relative population of hadron species. We also see that collective effects or complex mechanisms responsible for a relative enhancement of baryons have an influence at a much higher pT than was previously seen.arXiv:1110.4240oai:cds.cern.ch:13922252011-10-20
spellingShingle Nuclear Physics - Experiment
Barnby, L.S.
Strange and identified hadron production at the LHC with ALICE
title Strange and identified hadron production at the LHC with ALICE
title_full Strange and identified hadron production at the LHC with ALICE
title_fullStr Strange and identified hadron production at the LHC with ALICE
title_full_unstemmed Strange and identified hadron production at the LHC with ALICE
title_short Strange and identified hadron production at the LHC with ALICE
title_sort strange and identified hadron production at the lhc with alice
topic Nuclear Physics - Experiment
url https://dx.doi.org/10.1063/1.3692201
http://cds.cern.ch/record/1392225
work_keys_str_mv AT barnbyls strangeandidentifiedhadronproductionatthelhcwithalice