Bc+ formation from random charm and anti-bottom quarks in the quark-gluon plasma
We study the Bc+ production in Pb-Pb collisions at sNN=5.02 TeV. In the quark-gluon plasma (QGP) produced in heavy-ion collisions, heavy quarks make random motions with the energy loss. We employ the Langevin equations to study the non-equilibrium distributions of heavy quarks and the Instantaneous...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-11-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269322005822 |
| _version_ | 1828141195751063552 |
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| author | Baoyi Chen Liuyuan Wen Yunpeng Liu |
| author_facet | Baoyi Chen Liuyuan Wen Yunpeng Liu |
| author_sort | Baoyi Chen |
| collection | DOAJ |
| description | We study the Bc+ production in Pb-Pb collisions at sNN=5.02 TeV. In the quark-gluon plasma (QGP) produced in heavy-ion collisions, heavy quarks make random motions with the energy loss. We employ the Langevin equations to study the non-equilibrium distributions of heavy quarks and the Instantaneous Coalescence Model (ICM) to study the hadronization process. Due to abundant charm and bottom quarks in the QGP, their coalescence probability is significantly enhanced compared with the situations in proton-proton collisions. We find that the final production of Bc+ is increased by the coalescence process, which makes the nuclear modification factor (RAA) of Bc+ larger than unit. Our model explains the experimental data well at semi-central and central collisions. The observation of RAA(Bc+)>1 is regarded as an evident and strong signal of the existence of the deconfined medium generated in heavy-ion collisions. |
| first_indexed | 2024-04-11T19:20:20Z |
| format | Article |
| id | doaj.art-be39b2efc2a3445b9bb6bc8bf21ef727 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-04-11T19:20:20Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-be39b2efc2a3445b9bb6bc8bf21ef7272022-12-22T04:07:19ZengElsevierPhysics Letters B0370-26932022-11-01834137448Bc+ formation from random charm and anti-bottom quarks in the quark-gluon plasmaBaoyi Chen0Liuyuan Wen1Yunpeng Liu2Corresponding author.; Department of Physics, Tianjin University, Tianjin 300350, ChinaDepartment of Physics, Tianjin University, Tianjin 300350, ChinaDepartment of Physics, Tianjin University, Tianjin 300350, ChinaWe study the Bc+ production in Pb-Pb collisions at sNN=5.02 TeV. In the quark-gluon plasma (QGP) produced in heavy-ion collisions, heavy quarks make random motions with the energy loss. We employ the Langevin equations to study the non-equilibrium distributions of heavy quarks and the Instantaneous Coalescence Model (ICM) to study the hadronization process. Due to abundant charm and bottom quarks in the QGP, their coalescence probability is significantly enhanced compared with the situations in proton-proton collisions. We find that the final production of Bc+ is increased by the coalescence process, which makes the nuclear modification factor (RAA) of Bc+ larger than unit. Our model explains the experimental data well at semi-central and central collisions. The observation of RAA(Bc+)>1 is regarded as an evident and strong signal of the existence of the deconfined medium generated in heavy-ion collisions.http://www.sciencedirect.com/science/article/pii/S0370269322005822 |
| spellingShingle | Baoyi Chen Liuyuan Wen Yunpeng Liu Bc+ formation from random charm and anti-bottom quarks in the quark-gluon plasma Physics Letters B |
| title | Bc+ formation from random charm and anti-bottom quarks in the quark-gluon plasma |
| title_full | Bc+ formation from random charm and anti-bottom quarks in the quark-gluon plasma |
| title_fullStr | Bc+ formation from random charm and anti-bottom quarks in the quark-gluon plasma |
| title_full_unstemmed | Bc+ formation from random charm and anti-bottom quarks in the quark-gluon plasma |
| title_short | Bc+ formation from random charm and anti-bottom quarks in the quark-gluon plasma |
| title_sort | bc formation from random charm and anti bottom quarks in the quark gluon plasma |
| url | http://www.sciencedirect.com/science/article/pii/S0370269322005822 |
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