Nuclear geometry effect and transport coefficient in semi-inclusive lepton-production of hadrons off nuclei
Hadron production in semi-inclusive deep-inelastic scattering of leptons from nuclei is an ideal tool to determine and constrain the transport coefficient in cold nuclear matter. The leading-order computations for hadron multiplicity ratios are performed by means of the SW quenching weights and the...
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| Format: | Article |
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Elsevier
2015-10-01
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| Series: | Physics Letters B |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269315005584 |
| _version_ | 1818139454760550400 |
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| author | Na Liu Wen-Dan Miao Li-Hua Song Chun-Gui Duan |
| author_facet | Na Liu Wen-Dan Miao Li-Hua Song Chun-Gui Duan |
| author_sort | Na Liu |
| collection | DOAJ |
| description | Hadron production in semi-inclusive deep-inelastic scattering of leptons from nuclei is an ideal tool to determine and constrain the transport coefficient in cold nuclear matter. The leading-order computations for hadron multiplicity ratios are performed by means of the SW quenching weights and the analytic parameterizations of quenching weights based on BDMPS formalism. The theoretical results are compared to the HERMES positively charged pions production data with the quarks hadronization occurring outside the nucleus. With considering the nuclear geometry effect on hadron production, our predictions are in good agreement with the experimental measurements. The extracted transport parameter from the global fit is shown to be qˆ=0.74±0.03 GeV2/fm for the SW quenching weight without the finite energy corrections. As for the analytic parameterization of BDMPS quenching weight without the quark energy E dependence, the computed transport coefficient is qˆ=0.20±0.02 GeV2/fm. It is found that the nuclear geometry effect has a significant impact on the transport coefficient in cold nuclear matter. It is necessary to consider the detailed nuclear geometry in studying the semi-inclusive hadron production in deep inelastic scattering on nuclear targets. |
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| format | Article |
| id | doaj.art-312c0dac7947480c83fb0ca4f39959fb |
| institution | Directory Open Access Journal |
| issn | 0370-2693 1873-2445 |
| language | English |
| last_indexed | 2024-12-11T10:28:21Z |
| publishDate | 2015-10-01 |
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| series | Physics Letters B |
| spelling | doaj.art-312c0dac7947480c83fb0ca4f39959fb2022-12-22T01:11:02ZengElsevierPhysics Letters B0370-26931873-24452015-10-01749C889310.1016/j.physletb.2015.07.048Nuclear geometry effect and transport coefficient in semi-inclusive lepton-production of hadrons off nucleiNa Liu0Wen-Dan Miao1Li-Hua Song2Chun-Gui Duan3Department of Physics, Hebei Normal University, Shijiazhuang 050024, PR ChinaDepartment of Physics, Hebei Normal University, Shijiazhuang 050024, PR ChinaDepartment of Physics, Hebei Normal University, Shijiazhuang 050024, PR ChinaDepartment of Physics, Hebei Normal University, Shijiazhuang 050024, PR ChinaHadron production in semi-inclusive deep-inelastic scattering of leptons from nuclei is an ideal tool to determine and constrain the transport coefficient in cold nuclear matter. The leading-order computations for hadron multiplicity ratios are performed by means of the SW quenching weights and the analytic parameterizations of quenching weights based on BDMPS formalism. The theoretical results are compared to the HERMES positively charged pions production data with the quarks hadronization occurring outside the nucleus. With considering the nuclear geometry effect on hadron production, our predictions are in good agreement with the experimental measurements. The extracted transport parameter from the global fit is shown to be qˆ=0.74±0.03 GeV2/fm for the SW quenching weight without the finite energy corrections. As for the analytic parameterization of BDMPS quenching weight without the quark energy E dependence, the computed transport coefficient is qˆ=0.20±0.02 GeV2/fm. It is found that the nuclear geometry effect has a significant impact on the transport coefficient in cold nuclear matter. It is necessary to consider the detailed nuclear geometry in studying the semi-inclusive hadron production in deep inelastic scattering on nuclear targets.http://www.sciencedirect.com/science/article/pii/S0370269315005584Deep inelastic scatteringQuark energy lossHadron production |
| spellingShingle | Na Liu Wen-Dan Miao Li-Hua Song Chun-Gui Duan Nuclear geometry effect and transport coefficient in semi-inclusive lepton-production of hadrons off nuclei Physics Letters B Deep inelastic scattering Quark energy loss Hadron production |
| title | Nuclear geometry effect and transport coefficient in semi-inclusive lepton-production of hadrons off nuclei |
| title_full | Nuclear geometry effect and transport coefficient in semi-inclusive lepton-production of hadrons off nuclei |
| title_fullStr | Nuclear geometry effect and transport coefficient in semi-inclusive lepton-production of hadrons off nuclei |
| title_full_unstemmed | Nuclear geometry effect and transport coefficient in semi-inclusive lepton-production of hadrons off nuclei |
| title_short | Nuclear geometry effect and transport coefficient in semi-inclusive lepton-production of hadrons off nuclei |
| title_sort | nuclear geometry effect and transport coefficient in semi inclusive lepton production of hadrons off nuclei |
| topic | Deep inelastic scattering Quark energy loss Hadron production |
| url | http://www.sciencedirect.com/science/article/pii/S0370269315005584 |
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