Order-alpha(s) corrections to the quarkonium electromagnetic current at all orders in the heavy-quark velocity
DC Field | Value | Language |
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dc.contributor.author | Bodwin, Geoffrey T. | - |
dc.contributor.author | Chung, Hee Sok | - |
dc.contributor.author | Lee, Jungil | - |
dc.contributor.author | Yu, Chaehyun | - |
dc.date.accessioned | 2021-09-08T21:12:00Z | - |
dc.date.available | 2021-09-08T21:12:00Z | - |
dc.date.created | 2021-06-10 | - |
dc.date.issued | 2009-01 | - |
dc.identifier.issn | 1550-7998 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/120856 | - |
dc.description.abstract | We compute in order alpha(s) the nonrelativistic QCD (NRQCD) short-distance coefficients that match quark-antiquark operators of all orders in the heavy-quark velocity v to the electromagnetic current. We employ a new method to compute the one-loop NRQCD contribution to the matching condition. The new method uses full-QCD expressions as a starting point to obtain the NRQCD contribution, thus greatly streamlining the calculation. Our results show that, under a mild constraint on the NRQCD operator matrix elements, the NRQCD velocity expansion for the quark-antiquark-operator contributions to the electromagnetic current converges. The velocity expansion converges rapidly for approximate J / psi operator matrix elements. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER PHYSICAL SOC | - |
dc.subject | LEPTONIC DECAYS | - |
dc.subject | NEAR-THRESHOLD | - |
dc.subject | QCD | - |
dc.subject | ANNIHILATION | - |
dc.subject | MESON | - |
dc.title | Order-alpha(s) corrections to the quarkonium electromagnetic current at all orders in the heavy-quark velocity | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Jungil | - |
dc.identifier.doi | 10.1103/PhysRevD.79.014007 | - |
dc.identifier.scopusid | 2-s2.0-59249107368 | - |
dc.identifier.wosid | 000262979700032 | - |
dc.identifier.bibliographicCitation | PHYSICAL REVIEW D, v.79, no.1 | - |
dc.relation.isPartOf | PHYSICAL REVIEW D | - |
dc.citation.title | PHYSICAL REVIEW D | - |
dc.citation.volume | 79 | - |
dc.citation.number | 1 | - |
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 | LEPTONIC DECAYS | - |
dc.subject.keywordPlus | NEAR-THRESHOLD | - |
dc.subject.keywordPlus | QCD | - |
dc.subject.keywordPlus | ANNIHILATION | - |
dc.subject.keywordPlus | MESON | - |
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