Observation and studies of jet quenching in PbPb collisions at √sNN=2.76 TeV
Jet production in PbPb collisions at a nucleon-nucleon center-of-mass energy of 2.76 TeV was studied with the Compact Muon Solenoid (CMS) detector at the LHC, using a data sample corresponding to an integrated luminosity of 6.7μb-1. Jets are reconstructed using the energy deposited in the CMS calori...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
2011
|
| _version_ | 1797082306795536384 |
|---|---|
| author | Chatrchyan, S Khachatryan, V Sirunyan, A Tumasyan, A Adam, W Bergauer, T Dragicevic, M Erö, J Fabjan, C Friedl, M Frühwirth, R Ghete, V Hammer, J Hänsel, S Hartl, C Hoch, M Hörmann, N Hrubec, J Jeitler, M Kasieczka, G Kiesenhofer, W Krammer, M Liko, D Mikulec, I Pernicka, M |
| author_facet | Chatrchyan, S Khachatryan, V Sirunyan, A Tumasyan, A Adam, W Bergauer, T Dragicevic, M Erö, J Fabjan, C Friedl, M Frühwirth, R Ghete, V Hammer, J Hänsel, S Hartl, C Hoch, M Hörmann, N Hrubec, J Jeitler, M Kasieczka, G Kiesenhofer, W Krammer, M Liko, D Mikulec, I Pernicka, M |
| author_sort | Chatrchyan, S |
| collection | OXFORD |
| description | Jet production in PbPb collisions at a nucleon-nucleon center-of-mass energy of 2.76 TeV was studied with the Compact Muon Solenoid (CMS) detector at the LHC, using a data sample corresponding to an integrated luminosity of 6.7μb-1. Jets are reconstructed using the energy deposited in the CMS calorimeters and studied as a function of collision centrality. With increasing collision centrality, a striking imbalance in dijet transverse momentum is observed, consistent with jet quenching. The observed effect extends from the lower cutoff used in this study (jet pT=120 GeV/c) up to the statistical limit of the available data sample (jet pT≈210 GeV/c). Correlations of charged particle tracks with jets indicate that the momentum imbalance is accompanied by a softening of the fragmentation pattern of the second most energetic, away-side jet. The dijet momentum balance is recovered when integrating low transverse momentum particles distributed over a wide angular range relative to the direction of the away-side jet. © 2011 American Physical Society. |
| first_indexed | 2024-03-07T01:26:17Z |
| format | Journal article |
| id | oxford-uuid:9216dded-da9f-425d-8c03-a0042e9559d0 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T01:26:17Z |
| publishDate | 2011 |
| record_format | dspace |
| spelling | oxford-uuid:9216dded-da9f-425d-8c03-a0042e9559d02022-03-26T23:23:10ZObservation and studies of jet quenching in PbPb collisions at √sNN=2.76 TeVJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:9216dded-da9f-425d-8c03-a0042e9559d0EnglishSymplectic Elements at Oxford2011Chatrchyan, SKhachatryan, VSirunyan, ATumasyan, AAdam, WBergauer, TDragicevic, MErö, JFabjan, CFriedl, MFrühwirth, RGhete, VHammer, JHänsel, SHartl, CHoch, MHörmann, NHrubec, JJeitler, MKasieczka, GKiesenhofer, WKrammer, MLiko, DMikulec, IPernicka, MJet production in PbPb collisions at a nucleon-nucleon center-of-mass energy of 2.76 TeV was studied with the Compact Muon Solenoid (CMS) detector at the LHC, using a data sample corresponding to an integrated luminosity of 6.7μb-1. Jets are reconstructed using the energy deposited in the CMS calorimeters and studied as a function of collision centrality. With increasing collision centrality, a striking imbalance in dijet transverse momentum is observed, consistent with jet quenching. The observed effect extends from the lower cutoff used in this study (jet pT=120 GeV/c) up to the statistical limit of the available data sample (jet pT≈210 GeV/c). Correlations of charged particle tracks with jets indicate that the momentum imbalance is accompanied by a softening of the fragmentation pattern of the second most energetic, away-side jet. The dijet momentum balance is recovered when integrating low transverse momentum particles distributed over a wide angular range relative to the direction of the away-side jet. © 2011 American Physical Society. |
| spellingShingle | Chatrchyan, S Khachatryan, V Sirunyan, A Tumasyan, A Adam, W Bergauer, T Dragicevic, M Erö, J Fabjan, C Friedl, M Frühwirth, R Ghete, V Hammer, J Hänsel, S Hartl, C Hoch, M Hörmann, N Hrubec, J Jeitler, M Kasieczka, G Kiesenhofer, W Krammer, M Liko, D Mikulec, I Pernicka, M Observation and studies of jet quenching in PbPb collisions at √sNN=2.76 TeV |
| title | Observation and studies of jet quenching in PbPb collisions at √sNN=2.76 TeV |
| title_full | Observation and studies of jet quenching in PbPb collisions at √sNN=2.76 TeV |
| title_fullStr | Observation and studies of jet quenching in PbPb collisions at √sNN=2.76 TeV |
| title_full_unstemmed | Observation and studies of jet quenching in PbPb collisions at √sNN=2.76 TeV |
| title_short | Observation and studies of jet quenching in PbPb collisions at √sNN=2.76 TeV |
| title_sort | observation and studies of jet quenching in pbpb collisions at √snn 2 76 tev |
| work_keys_str_mv | AT chatrchyans observationandstudiesofjetquenchinginpbpbcollisionsatsnn276tev AT khachatryanv observationandstudiesofjetquenchinginpbpbcollisionsatsnn276tev AT sirunyana observationandstudiesofjetquenchinginpbpbcollisionsatsnn276tev AT tumasyana observationandstudiesofjetquenchinginpbpbcollisionsatsnn276tev AT adamw observationandstudiesofjetquenchinginpbpbcollisionsatsnn276tev AT bergauert observationandstudiesofjetquenchinginpbpbcollisionsatsnn276tev AT dragicevicm observationandstudiesofjetquenchinginpbpbcollisionsatsnn276tev AT eroj observationandstudiesofjetquenchinginpbpbcollisionsatsnn276tev AT fabjanc observationandstudiesofjetquenchinginpbpbcollisionsatsnn276tev AT friedlm observationandstudiesofjetquenchinginpbpbcollisionsatsnn276tev AT fruhwirthr observationandstudiesofjetquenchinginpbpbcollisionsatsnn276tev AT ghetev observationandstudiesofjetquenchinginpbpbcollisionsatsnn276tev AT hammerj observationandstudiesofjetquenchinginpbpbcollisionsatsnn276tev AT hansels observationandstudiesofjetquenchinginpbpbcollisionsatsnn276tev AT hartlc observationandstudiesofjetquenchinginpbpbcollisionsatsnn276tev AT hochm observationandstudiesofjetquenchinginpbpbcollisionsatsnn276tev AT hormannn observationandstudiesofjetquenchinginpbpbcollisionsatsnn276tev AT hrubecj observationandstudiesofjetquenchinginpbpbcollisionsatsnn276tev AT jeitlerm observationandstudiesofjetquenchinginpbpbcollisionsatsnn276tev AT kasieczkag observationandstudiesofjetquenchinginpbpbcollisionsatsnn276tev AT kiesenhoferw observationandstudiesofjetquenchinginpbpbcollisionsatsnn276tev AT krammerm observationandstudiesofjetquenchinginpbpbcollisionsatsnn276tev AT likod observationandstudiesofjetquenchinginpbpbcollisionsatsnn276tev AT mikuleci observationandstudiesofjetquenchinginpbpbcollisionsatsnn276tev AT pernickam observationandstudiesofjetquenchinginpbpbcollisionsatsnn276tev |