Time-dependent quark masses and big bang nucleosynthesis revisited
DC Field | Value | Language |
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dc.contributor.author | Cheoun, Myung-Ki | - |
dc.contributor.author | Kajino, Toshitaka | - |
dc.contributor.author | Kusakabe, Motohiko | - |
dc.contributor.author | Mathews, Grant J. | - |
dc.date.available | 2018-05-10T08:38:04Z | - |
dc.date.created | 2018-04-17 | - |
dc.date.issued | 2011-08-08 | - |
dc.identifier.issn | 1550-7998 | - |
dc.identifier.uri | http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/13603 | - |
dc.description.abstract | We reinvestigate the constraints from primordial nucleosynthesis on a possible time-dependent quark mass. The limits on such quark-mass variations are particularly sensitive to the adopted observational abundance constraints. Hence, in the present study we have considered updated light-element abundances and uncertainties deduced from observations. We also consider new nuclear reaction rates and an independent analysis of the influence of such quark-mass variations on the resonance properties of the important He-3(d; p)He-4 reaction. We find that the updated abundance and resonance constraints imply a narrower range on the possible quark-mass variations in the early universe. We also find that, contrary to previous investigations, the optimum concordance region reduces to a (95% C. L.) value of -0.005 less than or similar to delta m(q)/m(q) less than or similar to 0.007 consistent with no variation in the averaged quark mass. | - |
dc.publisher | AMER PHYSICAL SOC | - |
dc.relation.isPartOf | PHYSICAL REVIEW D | - |
dc.subject | FUNDAMENTAL CONSTANTS | - |
dc.subject | REACTION RATES | - |
dc.subject | WMAP DATA | - |
dc.subject | HE-3 | - |
dc.subject | PARAMETERS | - |
dc.subject | DEUTERIUM | - |
dc.subject | ABUNDANCE | - |
dc.subject | EVOLUTION | - |
dc.subject | LITHIUM | - |
dc.title | Time-dependent quark masses and big bang nucleosynthesis revisited | - |
dc.type | Article | - |
dc.identifier.doi | 10.1103/PhysRevD.84.043001 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | PHYSICAL REVIEW D, v.84, no.4 | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000293620100001 | - |
dc.identifier.scopusid | 2-s2.0-80052697917 | - |
dc.citation.number | 4 | - |
dc.citation.title | PHYSICAL REVIEW D | - |
dc.citation.volume | 84 | - |
dc.contributor.affiliatedAuthor | Cheoun, Myung-Ki | - |
dc.type.docType | Article | - |
dc.description.oadoiVersion | submitted | - |
dc.subject.keywordPlus | FUNDAMENTAL CONSTANTS | - |
dc.subject.keywordPlus | REACTION RATES | - |
dc.subject.keywordPlus | WMAP DATA | - |
dc.subject.keywordPlus | HE-3 | - |
dc.subject.keywordPlus | PARAMETERS | - |
dc.subject.keywordPlus | DEUTERIUM | - |
dc.subject.keywordPlus | ABUNDANCE | - |
dc.subject.keywordPlus | EVOLUTION | - |
dc.subject.keywordPlus | LITHIUM | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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