Prompt $$J/\psi $$ J/ψ photoproduction within the non-relativistic QCD framework at the CEPC
Abstract The prompt $$J/\psi $$ J/ψ photoproduction within the non-relativistic QCD (NRQCD) framework at the future Circular Electron Positron Collider (CEPC) is studied, including the contributions from both direct and resolved photons. Employing different sets of long distance matrix elements, the...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2020-08-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-020-8276-0 |
| _version_ | 1819278427676475392 |
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| author | Xi-Jie Zhan Jian-Xiong Wang |
| author_facet | Xi-Jie Zhan Jian-Xiong Wang |
| author_sort | Xi-Jie Zhan |
| collection | DOAJ |
| description | Abstract The prompt $$J/\psi $$ J/ψ photoproduction within the non-relativistic QCD (NRQCD) framework at the future Circular Electron Positron Collider (CEPC) is studied, including the contributions from both direct and resolved photons. Employing different sets of long distance matrix elements, the total cross section is dominated by the color-octet channel. We present different kinematic distributions of $$J/\psi $$ J/ψ production and the results show there will be about 50 $$J/\psi $$ J/ψ events when the transverse momentum of $$J/\psi $$ J/ψ is up to 20 GeV. It renders that the $$J/\psi $$ J/ψ photoprodution at the CEPC is a well laboratory to test the NRQCD and further clarify the universality problem in NRQCD between electron positron collider and hadron collider. |
| first_indexed | 2024-12-24T00:11:50Z |
| format | Article |
| id | doaj.art-d8c5e4ff686544848030cab7891bdf99 |
| institution | Directory Open Access Journal |
| issn | 1434-6044 1434-6052 |
| language | English |
| last_indexed | 2024-12-24T00:11:50Z |
| publishDate | 2020-08-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-d8c5e4ff686544848030cab7891bdf992022-12-21T17:24:51ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522020-08-018081710.1140/epjc/s10052-020-8276-0Prompt $$J/\psi $$ J/ψ photoproduction within the non-relativistic QCD framework at the CEPCXi-Jie Zhan0Jian-Xiong Wang1Institute of High Energy Physics (IHEP), Chinese Academy of Sciences (CAS)University of Chinese Academy of Sciences (UCAS), Chinese Academy of Sciences (CAS)Abstract The prompt $$J/\psi $$ J/ψ photoproduction within the non-relativistic QCD (NRQCD) framework at the future Circular Electron Positron Collider (CEPC) is studied, including the contributions from both direct and resolved photons. Employing different sets of long distance matrix elements, the total cross section is dominated by the color-octet channel. We present different kinematic distributions of $$J/\psi $$ J/ψ production and the results show there will be about 50 $$J/\psi $$ J/ψ events when the transverse momentum of $$J/\psi $$ J/ψ is up to 20 GeV. It renders that the $$J/\psi $$ J/ψ photoprodution at the CEPC is a well laboratory to test the NRQCD and further clarify the universality problem in NRQCD between electron positron collider and hadron collider.http://link.springer.com/article/10.1140/epjc/s10052-020-8276-0 |
| spellingShingle | Xi-Jie Zhan Jian-Xiong Wang Prompt $$J/\psi $$ J/ψ photoproduction within the non-relativistic QCD framework at the CEPC European Physical Journal C: Particles and Fields |
| title | Prompt $$J/\psi $$ J/ψ photoproduction within the non-relativistic QCD framework at the CEPC |
| title_full | Prompt $$J/\psi $$ J/ψ photoproduction within the non-relativistic QCD framework at the CEPC |
| title_fullStr | Prompt $$J/\psi $$ J/ψ photoproduction within the non-relativistic QCD framework at the CEPC |
| title_full_unstemmed | Prompt $$J/\psi $$ J/ψ photoproduction within the non-relativistic QCD framework at the CEPC |
| title_short | Prompt $$J/\psi $$ J/ψ photoproduction within the non-relativistic QCD framework at the CEPC |
| title_sort | prompt j psi j ψ photoproduction within the non relativistic qcd framework at the cepc |
| url | http://link.springer.com/article/10.1140/epjc/s10052-020-8276-0 |
| work_keys_str_mv | AT xijiezhan promptjpsijpsphotoproductionwithinthenonrelativisticqcdframeworkatthecepc AT jianxiongwang promptjpsijpsphotoproductionwithinthenonrelativisticqcdframeworkatthecepc |