Strange hadron production in pp and pPb collisions at root(NN)-N-s=5.02 TeV
The transverse momentum (pT) distributions of Lambda, Xi(-), and Omega(-) baryons, their antiparticles, and K-S(0) mesons are measured in proton-proton (pp) and proton-lead (pPb) collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV over a broad rapidity range. The data, corresponding to...
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| Language: | English English |
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American Physical Association
2020
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| Online Access: | http://irep.iium.edu.my/82215/ http://irep.iium.edu.my/82215/1/82215_Strange%20hadron%20production%20in%20pp.pdf http://irep.iium.edu.my/82215/2/82215_Strange%20hadron%20production%20in%20pp_WOS.pdf |
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| author | Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli |
| author_facet | Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli |
| author_sort | Sirunyan, A. M. |
| building | IIUM Repository |
| collection | Online Access |
| description | The transverse momentum (pT) distributions of Lambda, Xi(-), and Omega(-) baryons, their antiparticles, and K-S(0) mesons are measured in proton-proton (pp) and proton-lead (pPb) collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV over a broad rapidity range. The data, corresponding to integrated luminosities of 40.2 nb(-1) and 15.6 mu b(-1) for pp and pPb collisions, respectively, were collected by the CMS experiment. The nuclear modification factor R-pPb, which is defined as the ratio of the particle yield in pPb collisions and a scaled pp reference, is measured for each particle. A strong dependence on particle species is observed in the pT range from 2 to 7 GeV, where R-pPb for K-S(0) is consistent with unity, while an enhancement ordered by strangeness content and/or particle mass is observed for the three baryons. In pPb collisions, the strange hadron production is asymmetric about the nucleon-nucleon center-of-mass rapidity. Enhancements, which depend on the particle type, are observed in the direction of the Pb beam. The results are compared with predictions from EPOS LHC, which includes parametrized radial flow. The model is in qualitative agreement with the R-pPb data, but fails to describe the dependence on particle species in the yield asymmetries measured away from midrapidity in pPb collisions |
| first_indexed | 2025-11-14T17:53:54Z |
| format | Article |
| id | iium-82215 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-14T17:53:54Z |
| publishDate | 2020 |
| publisher | American Physical Association |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-822152020-08-17T02:41:50Z http://irep.iium.edu.my/82215/ Strange hadron production in pp and pPb collisions at root(NN)-N-s=5.02 TeV Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli QC Physics The transverse momentum (pT) distributions of Lambda, Xi(-), and Omega(-) baryons, their antiparticles, and K-S(0) mesons are measured in proton-proton (pp) and proton-lead (pPb) collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV over a broad rapidity range. The data, corresponding to integrated luminosities of 40.2 nb(-1) and 15.6 mu b(-1) for pp and pPb collisions, respectively, were collected by the CMS experiment. The nuclear modification factor R-pPb, which is defined as the ratio of the particle yield in pPb collisions and a scaled pp reference, is measured for each particle. A strong dependence on particle species is observed in the pT range from 2 to 7 GeV, where R-pPb for K-S(0) is consistent with unity, while an enhancement ordered by strangeness content and/or particle mass is observed for the three baryons. In pPb collisions, the strange hadron production is asymmetric about the nucleon-nucleon center-of-mass rapidity. Enhancements, which depend on the particle type, are observed in the direction of the Pb beam. The results are compared with predictions from EPOS LHC, which includes parametrized radial flow. The model is in qualitative agreement with the R-pPb data, but fails to describe the dependence on particle species in the yield asymmetries measured away from midrapidity in pPb collisions American Physical Association 2020-06-22 Article PeerReviewed application/pdf en http://irep.iium.edu.my/82215/1/82215_Strange%20hadron%20production%20in%20pp.pdf application/pdf en http://irep.iium.edu.my/82215/2/82215_Strange%20hadron%20production%20in%20pp_WOS.pdf Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Ambrogi, Federico and Asilar, Ece and Md. Ali, Mohd. Adli (2020) Strange hadron production in pp and pPb collisions at root(NN)-N-s=5.02 TeV. Physical Review C, 101 (6). pp. 1-21. ISSN 0556-2813 E-ISSN 1089-490X https://journals.aps.org/prc/pdf/10.1103/PhysRevC.101.064906 10.1103/PhysRevC.101.064906 |
| spellingShingle | QC Physics Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli Strange hadron production in pp and pPb collisions at root(NN)-N-s=5.02 TeV |
| title | Strange hadron production in pp and pPb collisions at root(NN)-N-s=5.02 TeV |
| title_full | Strange hadron production in pp and pPb collisions at root(NN)-N-s=5.02 TeV |
| title_fullStr | Strange hadron production in pp and pPb collisions at root(NN)-N-s=5.02 TeV |
| title_full_unstemmed | Strange hadron production in pp and pPb collisions at root(NN)-N-s=5.02 TeV |
| title_short | Strange hadron production in pp and pPb collisions at root(NN)-N-s=5.02 TeV |
| title_sort | strange hadron production in pp and ppb collisions at root(nn)-n-s=5.02 tev |
| topic | QC Physics |
| url | http://irep.iium.edu.my/82215/ http://irep.iium.edu.my/82215/ http://irep.iium.edu.my/82215/ http://irep.iium.edu.my/82215/1/82215_Strange%20hadron%20production%20in%20pp.pdf http://irep.iium.edu.my/82215/2/82215_Strange%20hadron%20production%20in%20pp_WOS.pdf |