Extraction of kaon partonic distribution functions from Drell-Yan and J/ψ production data
We present an analysis to extract kaon parton distribution functions (PDFs) using meson-induced Drell-Yan and quarkonium production data. Starting from the statistical model first developed for determining the partonic structure of spin-1/2 nucleon and later applied to the spin-0 pion, we have exten...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024-01-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269323007281 |
| _version_ | 1797363806678024192 |
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| author | Claude Bourrely Franco Buccella Wen-Chen Chang Jen-Chieh Peng |
| author_facet | Claude Bourrely Franco Buccella Wen-Chen Chang Jen-Chieh Peng |
| author_sort | Claude Bourrely |
| collection | DOAJ |
| description | We present an analysis to extract kaon parton distribution functions (PDFs) using meson-induced Drell-Yan and quarkonium production data. Starting from the statistical model first developed for determining the partonic structure of spin-1/2 nucleon and later applied to the spin-0 pion, we have extended this approach to perform a global fit to existing kaon-induced Drell-Yan and J/ψ production data. These data are well described by the statistical model, allowing an extraction of the kaon PDFs. We find that both the Drell-Yan and the J/ψ data favor a harder valence distribution for strange quark than for up quark in kaon. The kaon gluon distribution is further constrained by the J/ψ production data. In particular, the momentum fraction carried by gluons is found to be similar for pion and kaon. |
| first_indexed | 2024-03-08T16:26:13Z |
| format | Article |
| id | doaj.art-5f4e59e890404582ada3bef9b71b2e75 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-03-08T16:26:13Z |
| publishDate | 2024-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-5f4e59e890404582ada3bef9b71b2e752024-01-07T04:30:24ZengElsevierPhysics Letters B0370-26932024-01-01848138395Extraction of kaon partonic distribution functions from Drell-Yan and J/ψ production dataClaude Bourrely0Franco Buccella1Wen-Chen Chang2Jen-Chieh Peng3Aix Marseille Univ, Universite de Toulon, CNRS, CPT, Marseille, France; Corresponding author.INFN, Sezione di Roma I, Roma, ItalyInstitute of Physics, Academia Sinica, Taipei 11529, TaiwanDepartment of Physics, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USAWe present an analysis to extract kaon parton distribution functions (PDFs) using meson-induced Drell-Yan and quarkonium production data. Starting from the statistical model first developed for determining the partonic structure of spin-1/2 nucleon and later applied to the spin-0 pion, we have extended this approach to perform a global fit to existing kaon-induced Drell-Yan and J/ψ production data. These data are well described by the statistical model, allowing an extraction of the kaon PDFs. We find that both the Drell-Yan and the J/ψ data favor a harder valence distribution for strange quark than for up quark in kaon. The kaon gluon distribution is further constrained by the J/ψ production data. In particular, the momentum fraction carried by gluons is found to be similar for pion and kaon.http://www.sciencedirect.com/science/article/pii/S0370269323007281 |
| spellingShingle | Claude Bourrely Franco Buccella Wen-Chen Chang Jen-Chieh Peng Extraction of kaon partonic distribution functions from Drell-Yan and J/ψ production data Physics Letters B |
| title | Extraction of kaon partonic distribution functions from Drell-Yan and J/ψ production data |
| title_full | Extraction of kaon partonic distribution functions from Drell-Yan and J/ψ production data |
| title_fullStr | Extraction of kaon partonic distribution functions from Drell-Yan and J/ψ production data |
| title_full_unstemmed | Extraction of kaon partonic distribution functions from Drell-Yan and J/ψ production data |
| title_short | Extraction of kaon partonic distribution functions from Drell-Yan and J/ψ production data |
| title_sort | extraction of kaon partonic distribution functions from drell yan and j ψ production data |
| url | http://www.sciencedirect.com/science/article/pii/S0370269323007281 |
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