NRQCD matrix elements for S-wave bottomonia and Gamma[eta(b)(nS) -> gamma gamma] with relativistic corrections
DC Field | Value | Language |
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dc.contributor.author | Chung, Hee Sok | - |
dc.contributor.author | Lee, Jungil | - |
dc.contributor.author | Yu, Chaehyun | - |
dc.date.accessioned | 2021-09-07T14:59:23Z | - |
dc.date.available | 2021-09-07T14:59:23Z | - |
dc.date.created | 2021-06-14 | - |
dc.date.issued | 2011-02-21 | - |
dc.identifier.issn | 0370-2693 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/113049 | - |
dc.description.abstract | We determine the leading-order nonrelativistic quantum chromodynamics (NRQCD) matrix element (O-1)(Y) and the ratio (q(2))(Y.) for Y = Y(ns) with n = 1, 2, and 3 by comparing the measured values for Gamma[Y -> e(+)e(-)] with the NRQCD factorization formula in which relativistic corrections are resummed to all orders in the heavy-quark velocity v. The values for < q(2)>(Y), which is the ratio of order-v(2) matrix element to (O-1)(Y), are new. They can be used for NRQCD predictions involving Y(nS) and eta(b)(nS) with relativistic corrections. As an application, we predict the two-photon decay rates for the spin-singlet states: Gamma[eta(b)(1S) -> gamma gamma] = 0.5121(-0.094)(+0.096) keV, Gamma[eta(b) (2S) -> gamma gamma] = 0.2351(-0.043)(+0.043) key, and Gamma[eta(b)(3S) -> gamma gamma] = 0.170(-0.031)(+0.031) keV. (C) 2011 Published by Elsevier B.V. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER | - |
dc.subject | ANNIHILATION | - |
dc.subject | QUARKONIUM | - |
dc.subject | DECAY | - |
dc.subject | E(+)E(-) | - |
dc.subject | QCD | - |
dc.subject | CHARMONIUM | - |
dc.subject | RATES | - |
dc.title | NRQCD matrix elements for S-wave bottomonia and Gamma[eta(b)(nS) -> gamma gamma] with relativistic corrections | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Jungil | - |
dc.identifier.doi | 10.1016/j.physletb.2011.01.033 | - |
dc.identifier.scopusid | 2-s2.0-79551498249 | - |
dc.identifier.wosid | 000287790800010 | - |
dc.identifier.bibliographicCitation | PHYSICS LETTERS B, v.697, no.1, pp.48 - 51 | - |
dc.relation.isPartOf | PHYSICS LETTERS B | - |
dc.citation.title | PHYSICS LETTERS B | - |
dc.citation.volume | 697 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 48 | - |
dc.citation.endPage | 51 | - |
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, Nuclear | - |
dc.relation.journalWebOfScienceCategory | Physics, Particles & Fields | - |
dc.subject.keywordPlus | ANNIHILATION | - |
dc.subject.keywordPlus | QUARKONIUM | - |
dc.subject.keywordPlus | DECAY | - |
dc.subject.keywordPlus | E(+)E(-) | - |
dc.subject.keywordPlus | QCD | - |
dc.subject.keywordPlus | CHARMONIUM | - |
dc.subject.keywordPlus | RATES | - |
dc.subject.keywordAuthor | NRQCD | - |
dc.subject.keywordAuthor | NRQCD matrix element | - |
dc.subject.keywordAuthor | Relativistic correction | - |
dc.subject.keywordAuthor | Bottomonium | - |
dc.subject.keywordAuthor | Two-photon width | - |
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