Resummation of relativistic corrections to exclusive productions of charmonia in e(+)e(-) collisions
DC Field | Value | Language |
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dc.contributor.author | Fan, Ying | - |
dc.contributor.author | Lee, Jungil | - |
dc.contributor.author | Yu, Chaehyun | - |
dc.date.accessioned | 2021-09-06T01:22:46Z | - |
dc.date.available | 2021-09-06T01:22:46Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2013-05-30 | - |
dc.identifier.issn | 1550-7998 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/103195 | - |
dc.description.abstract | We investigate two exclusive processes, e(+)e(-) -> eta(c) + gamma and e(+)e(-) -> J/psi + J/psi, at the center-of-momentum energy root s = 10.58 GeV within the framework of the nonrelativistic QCD factorization approach. A class of relativistic corrections is resummed to all orders in the heavy-quark velocity v and the corrections are large negative. We further improve the prediction by including available QCD next-to-leading-order corrections and the interference between the QCD and relativistic corrections. The prediction for sigma[e(+)e(-) -> eta(c) + gamma] is about 50 fb. In the case of e(+)e(-) -> J/psi + J/psi the standard nonrelativistic QCD prediction for the cross section is negative. As an alternative, the vector-meson-dominance approach is employed to compute the photon-fragmentation contribution of the process, which gives the cross section similar to 1 fb. This is an indication that the uncalculated QCD higher-order corrections may be significant. Our results can be tested against the forthcoming data from Belle II and super B factories. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER PHYSICAL SOC | - |
dc.subject | ANNIHILATION | - |
dc.title | Resummation of relativistic corrections to exclusive productions of charmonia in e(+)e(-) collisions | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Jungil | - |
dc.identifier.doi | 10.1103/PhysRevD.87.094032 | - |
dc.identifier.scopusid | 2-s2.0-84878585721 | - |
dc.identifier.wosid | 000319731000001 | - |
dc.identifier.bibliographicCitation | PHYSICAL REVIEW D, v.87, no.9 | - |
dc.relation.isPartOf | PHYSICAL REVIEW D | - |
dc.citation.title | PHYSICAL REVIEW D | - |
dc.citation.volume | 87 | - |
dc.citation.number | 9 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Astronomy & Astrophysics | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Astronomy & Astrophysics | - |
dc.relation.journalWebOfScienceCategory | Physics, Particles & Fields | - |
dc.subject.keywordPlus | ANNIHILATION | - |
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