Cargando…
Measurement of inclusive jet spectra in pp, p-Pb, and Pb-Pb collisions with the ALICE detector
Highly energetic jets are sensitive probes for the kinematic properties and the topology of high energy hadron collisions. Jets are collimated sprays of charged and neutral particles, which are produced in fragmentation of hard scattered partons from an early stage of the collision. In ALICE, jets h...
Autor principal: | |
---|---|
Lenguaje: | eng |
Publicado: |
2014
|
Materias: | |
Acceso en línea: | https://dx.doi.org/10.1088/1742-6596/805/1/012008 http://cds.cern.ch/record/1955781 |
_version_ | 1780944462696939520 |
---|---|
author | Haake, Rüdiger |
author_facet | Haake, Rüdiger |
author_sort | Haake, Rüdiger |
collection | CERN |
description | Highly energetic jets are sensitive probes for the kinematic properties and the topology of high energy hadron collisions. Jets are collimated sprays of charged and neutral particles, which are produced in fragmentation of hard scattered partons from an early stage of the collision. In ALICE, jets have been measured in pp, p-Pb, and Pb-Pb collisions at several collision energies. While analyses of Pb-Pb events unveil properties of the hot and dense medium formed in heavy-ion collisions, pp and p-Pb collisions can shed light on hadronization and cold nuclear matter effects in jet production. Additionally, pp and p-Pb serve as a baseline for disentangling hot and cold nuclear matter effects. A possible modification of the initial state is tested in p-Pb analyses. For the extraction of a jet signal, the exact evaluation of the background from the underlying event is an especially important ingredient. Due to the different nature of underlying events, each collision system requires a different analysis technique for removing the effect of the background on the jet sample. The focus of this publication is on the ALICE measurements of nuclear modification factors connecting p-Pb and Pb-Pb events to pp collisions. Furthermore, the radial jet structure is explored by comparing jet spectra reconstructed with different resolution parameters. |
id | cern-1955781 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2014 |
record_format | invenio |
spelling | cern-19557812019-10-15T15:19:58Zdoi:10.1088/1742-6596/805/1/012008http://cds.cern.ch/record/1955781engHaake, RüdigerMeasurement of inclusive jet spectra in pp, p-Pb, and Pb-Pb collisions with the ALICE detectorNuclear Physics - ExperimentHighly energetic jets are sensitive probes for the kinematic properties and the topology of high energy hadron collisions. Jets are collimated sprays of charged and neutral particles, which are produced in fragmentation of hard scattered partons from an early stage of the collision. In ALICE, jets have been measured in pp, p-Pb, and Pb-Pb collisions at several collision energies. While analyses of Pb-Pb events unveil properties of the hot and dense medium formed in heavy-ion collisions, pp and p-Pb collisions can shed light on hadronization and cold nuclear matter effects in jet production. Additionally, pp and p-Pb serve as a baseline for disentangling hot and cold nuclear matter effects. A possible modification of the initial state is tested in p-Pb analyses. For the extraction of a jet signal, the exact evaluation of the background from the underlying event is an especially important ingredient. Due to the different nature of underlying events, each collision system requires a different analysis technique for removing the effect of the background on the jet sample. The focus of this publication is on the ALICE measurements of nuclear modification factors connecting p-Pb and Pb-Pb events to pp collisions. Furthermore, the radial jet structure is explored by comparing jet spectra reconstructed with different resolution parameters.Highly energetic jets are sensitive probes for the kinematic properties and the topology of high energy hadron collisions. Jets are collimated sprays of charged and neutral particles, which are produced in fragmentation of hard scattered partons from an early stage of the collision. In ALICE, jets have been measured in pp, p-Pb, and Pb-Pb collisions at several collision energies. While analyses of Pb-Pb events unveil properties of the hot and dense medium formed in heavy-ion collisions, pp and p-Pb collisions can shed light on hadronization and cold nuclear matter effects in jet production. Additionally, pp and p-Pb serve as a baseline for disentangling hot and cold nuclear matter effects. A possible modification of the initial state is tested in p-Pb analyses. For the extraction of a jet signal, the exact evaluation of the background from the underlying event is an especially important ingredient. Due to the different nature of underlying events, each collision system requires a different analysis technique for removing the effect of the background on the jet sample. The focus of this publication is on the ALICE measurements of nuclear modification factors connecting p-Pb and Pb-Pb events to pp collisions. Furthermore, the radial jet structure is explored by comparing jet spectra reconstructed with different resolution parameters.Highly energetic jets are sensitive probes of the kinematic properties and the topology of high energy hadron collisions. Jets are collimated sprays of charged and neutral particles, which are produced in fragmentation of hard scattered partons from an early stage of the collision. In ALICE, jets have been measured in pp, p–Pb, and Pb–Pb collisions at several collision energies. While analyses of Pb–Pb events unveil properties of the hot and dense medium formed in heavy-ion collisions, pp and p–Pb collisions can shed light on hadronization and cold nuclear matter effects in jet production. Additionally, pp and p–Pb collisions serve as a baseline for disentangling hot and cold nuclear matter effects. A possible modification of the initial state is tested in p–Pb analyses. For the extraction of a jet signal, the exact evaluation of the background from the underlying event is an especially important ingredient. Due to the different nature of underlying events, each collision system requires a different analysis technique for removing the effect of the background on the jet sample. The focus of this publication is on the ALICE measurements of nuclear modification factors connecting p–Pb and Pb–Pb events to pp collisions. Furthermore, the radial jet structure is explored by comparing jet spectra reconstructed with different resolution parameters.arXiv:1410.4437oai:cds.cern.ch:19557812014-10-16 |
spellingShingle | Nuclear Physics - Experiment Haake, Rüdiger Measurement of inclusive jet spectra in pp, p-Pb, and Pb-Pb collisions with the ALICE detector |
title | Measurement of inclusive jet spectra in pp, p-Pb, and Pb-Pb collisions with the ALICE detector |
title_full | Measurement of inclusive jet spectra in pp, p-Pb, and Pb-Pb collisions with the ALICE detector |
title_fullStr | Measurement of inclusive jet spectra in pp, p-Pb, and Pb-Pb collisions with the ALICE detector |
title_full_unstemmed | Measurement of inclusive jet spectra in pp, p-Pb, and Pb-Pb collisions with the ALICE detector |
title_short | Measurement of inclusive jet spectra in pp, p-Pb, and Pb-Pb collisions with the ALICE detector |
title_sort | measurement of inclusive jet spectra in pp, p-pb, and pb-pb collisions with the alice detector |
topic | Nuclear Physics - Experiment |
url | https://dx.doi.org/10.1088/1742-6596/805/1/012008 http://cds.cern.ch/record/1955781 |
work_keys_str_mv | AT haakerudiger measurementofinclusivejetspectrainppppbandpbpbcollisionswiththealicedetector |