Investigating $$D^0$$ D 0 meson production in p-Pb collisions at 5.02 TeV with a multi-phase transport model
Abstract We study the production of $$D^0$$ D 0 meson in p+p and p-Pb collisions using the improved AMPT model considering both coalescence and independent fragmentation of charm quarks after the Cronin broadening is included. After a detailed discussion of the improvements implemented in the AMPT m...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-09-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-024-13265-9 |
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| author | Chao Zhang Liang Zheng Shusu Shi Zi-Wei Lin |
| author_facet | Chao Zhang Liang Zheng Shusu Shi Zi-Wei Lin |
| author_sort | Chao Zhang |
| collection | DOAJ |
| description | Abstract We study the production of $$D^0$$ D 0 meson in p+p and p-Pb collisions using the improved AMPT model considering both coalescence and independent fragmentation of charm quarks after the Cronin broadening is included. After a detailed discussion of the improvements implemented in the AMPT model for heavy quark production, we show that the modified AMPT model can provide a good description of $$D^0$$ D 0 meson spectra in p-Pb collisions, the $$Q_{\textrm{pPb}}$$ Q pPb data at different centralities and $$R_{\textrm{pPb}}$$ R pPb data in both mid- and forward (backward) rapidities. We also studied the effects of nuclear shadowing and parton cascade on the rapidity dependence of $$D^{0}$$ D 0 meson production and $$R_{\textrm{pPb}}$$ R pPb . Our results indicate that using the same strength of the Cronin effect (i.e $$\delta $$ δ value) as that obtained from the mid-rapidity data leads to a considerable overestimation of the $$D^0$$ D 0 meson spectra and $$R_{\textrm{pPb}}$$ R pPb data at high $$p_{\textrm{T}}$$ p T in the backward rapidity. As a result, the $$\delta $$ δ is determined via a $$\chi ^2$$ χ 2 fitting of the $$R_{\textrm{pPb}}$$ R pPb data across various rapidities. This work lays the foundation for a better understanding of cold-nuclear-matter (CNM) effects in relativistic heavy-ion collisions. |
| format | Article |
| id | doaj-art-7d68a1c314c24ae58a85d45f21a37829 |
| institution | Kabale University |
| issn | 1434-6052 |
| language | English |
| publishDate | 2024-09-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj-art-7d68a1c314c24ae58a85d45f21a378292024-11-17T12:44:11ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522024-09-0184911210.1140/epjc/s10052-024-13265-9Investigating $$D^0$$ D 0 meson production in p-Pb collisions at 5.02 TeV with a multi-phase transport modelChao Zhang0Liang Zheng1Shusu Shi2Zi-Wei Lin3Department of Physical Science and Technology, School of Science, Wuhan University of TechnologySchool of Mathematics and Physics, China University of Geosciences (Wuhan)Institute of Particle Physics and Key Laboratory of Quark&Lepton Physics (MOE), Central China Normal UniversityDepartment of Physics, East Carolina UniversityAbstract We study the production of $$D^0$$ D 0 meson in p+p and p-Pb collisions using the improved AMPT model considering both coalescence and independent fragmentation of charm quarks after the Cronin broadening is included. After a detailed discussion of the improvements implemented in the AMPT model for heavy quark production, we show that the modified AMPT model can provide a good description of $$D^0$$ D 0 meson spectra in p-Pb collisions, the $$Q_{\textrm{pPb}}$$ Q pPb data at different centralities and $$R_{\textrm{pPb}}$$ R pPb data in both mid- and forward (backward) rapidities. We also studied the effects of nuclear shadowing and parton cascade on the rapidity dependence of $$D^{0}$$ D 0 meson production and $$R_{\textrm{pPb}}$$ R pPb . Our results indicate that using the same strength of the Cronin effect (i.e $$\delta $$ δ value) as that obtained from the mid-rapidity data leads to a considerable overestimation of the $$D^0$$ D 0 meson spectra and $$R_{\textrm{pPb}}$$ R pPb data at high $$p_{\textrm{T}}$$ p T in the backward rapidity. As a result, the $$\delta $$ δ is determined via a $$\chi ^2$$ χ 2 fitting of the $$R_{\textrm{pPb}}$$ R pPb data across various rapidities. This work lays the foundation for a better understanding of cold-nuclear-matter (CNM) effects in relativistic heavy-ion collisions.https://doi.org/10.1140/epjc/s10052-024-13265-9 |
| spellingShingle | Chao Zhang Liang Zheng Shusu Shi Zi-Wei Lin Investigating $$D^0$$ D 0 meson production in p-Pb collisions at 5.02 TeV with a multi-phase transport model European Physical Journal C: Particles and Fields |
| title | Investigating $$D^0$$ D 0 meson production in p-Pb collisions at 5.02 TeV with a multi-phase transport model |
| title_full | Investigating $$D^0$$ D 0 meson production in p-Pb collisions at 5.02 TeV with a multi-phase transport model |
| title_fullStr | Investigating $$D^0$$ D 0 meson production in p-Pb collisions at 5.02 TeV with a multi-phase transport model |
| title_full_unstemmed | Investigating $$D^0$$ D 0 meson production in p-Pb collisions at 5.02 TeV with a multi-phase transport model |
| title_short | Investigating $$D^0$$ D 0 meson production in p-Pb collisions at 5.02 TeV with a multi-phase transport model |
| title_sort | investigating d 0 d 0 meson production in p pb collisions at 5 02 tev with a multi phase transport model |
| url | https://doi.org/10.1140/epjc/s10052-024-13265-9 |
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