Chromopolarizability of Charmonium and ππ Final State Interaction Revisited
The chromopolarizability of a quarkonium describes the quarkonium’s interaction with soft gluonic fields and can be measured in the heavy quarkonium decay. Within the framework of dispersion theory which considers the ππ final state interaction (FSI) model-independently, we analyze the transition ψ′...
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Wiley
2019-01-01
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| Series: | Advances in High Energy Physics |
| Online Access: | http://dx.doi.org/10.1155/2019/7650678 |
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| author | Yun-Hua Chen |
| author_facet | Yun-Hua Chen |
| author_sort | Yun-Hua Chen |
| collection | DOAJ |
| description | The chromopolarizability of a quarkonium describes the quarkonium’s interaction with soft gluonic fields and can be measured in the heavy quarkonium decay. Within the framework of dispersion theory which considers the ππ final state interaction (FSI) model-independently, we analyze the transition ψ′→J/ψπ+π- and obtain the chromopolarizability αψ′ψ and the parameter κ. It is found that the ππ FSI plays an important role in extracting the chromopolarizability from the experimental data. The obtained chromopolarizability with the FSI is reduced to about 1/2 of that without the FSI. With the FSI, we determine the chromopolarizability αψ′ψ=(1.44±0.02) GeV-3 and the parameter κ=0.139±0.005. Our results could be useful in studying the interactions of charmonium with light hadrons. |
| format | Article |
| id | doaj-art-df34d68d2fe14a4db3f116b55535afcb |
| institution | Kabale University |
| issn | 1687-7357 1687-7365 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in High Energy Physics |
| spelling | doaj-art-df34d68d2fe14a4db3f116b55535afcb2025-02-03T01:02:06ZengWileyAdvances in High Energy Physics1687-73571687-73652019-01-01201910.1155/2019/76506787650678Chromopolarizability of Charmonium and ππ Final State Interaction RevisitedYun-Hua Chen0School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083, ChinaThe chromopolarizability of a quarkonium describes the quarkonium’s interaction with soft gluonic fields and can be measured in the heavy quarkonium decay. Within the framework of dispersion theory which considers the ππ final state interaction (FSI) model-independently, we analyze the transition ψ′→J/ψπ+π- and obtain the chromopolarizability αψ′ψ and the parameter κ. It is found that the ππ FSI plays an important role in extracting the chromopolarizability from the experimental data. The obtained chromopolarizability with the FSI is reduced to about 1/2 of that without the FSI. With the FSI, we determine the chromopolarizability αψ′ψ=(1.44±0.02) GeV-3 and the parameter κ=0.139±0.005. Our results could be useful in studying the interactions of charmonium with light hadrons.http://dx.doi.org/10.1155/2019/7650678 |
| spellingShingle | Yun-Hua Chen Chromopolarizability of Charmonium and ππ Final State Interaction Revisited Advances in High Energy Physics |
| title | Chromopolarizability of Charmonium and ππ Final State Interaction Revisited |
| title_full | Chromopolarizability of Charmonium and ππ Final State Interaction Revisited |
| title_fullStr | Chromopolarizability of Charmonium and ππ Final State Interaction Revisited |
| title_full_unstemmed | Chromopolarizability of Charmonium and ππ Final State Interaction Revisited |
| title_short | Chromopolarizability of Charmonium and ππ Final State Interaction Revisited |
| title_sort | chromopolarizability of charmonium and ππ final state interaction revisited |
| url | http://dx.doi.org/10.1155/2019/7650678 |
| work_keys_str_mv | AT yunhuachen chromopolarizabilityofcharmoniumandppfinalstateinteractionrevisited |