完整後設資料紀錄
DC 欄位語言
dc.contributor.authorDetmold, Williamen_US
dc.contributor.authorLin, C. -J. Daviden_US
dc.contributor.authorMeinel, Stefanen_US
dc.contributor.authorWingate, Matthewen_US
dc.date.accessioned2019-04-03T06:43:02Z-
dc.date.available2019-04-03T06:43:02Z-
dc.date.issued2013-04-05en_US
dc.identifier.issn1550-7998en_US
dc.identifier.urihttp://dx.doi.org/10.1103/PhysRevD.87.074502en_US
dc.identifier.urihttp://hdl.handle.net/11536/21677-
dc.description.abstractWe present the first lattice QCD determination of the Lambda(b) -> Lambda transition form factors that govern the rare baryonic decays Lambda(b) -> Lambda l(+)l(-) at leading order in heavy-quark effective theory. Our calculations are performed with 2 + 1 flavors of domain-wall fermions, at two lattice spacings and with pion masses down to 227 MeV. Three-point functions with a wide range of source-sink separations are used to extract the ground-state contributions. The form factors are extrapolated to the physical values of the light-quark masses and to the continuum limit. We use our results to calculate the differential branching fractions for Lambda(b) -> Lambda l(+)l(-) with l = e, mu, tau within the standard model. We find agreement with a recent CDF measurement of the Lambda(b) -> Lambda mu(+)mu(-) differential branching fraction. DOI: 10.1103/PhysRevD.87.074502en_US
dc.language.isoen_USen_US
dc.titleLambda(b) -> Lambda l(+)l(-) form factors and differential branching fraction from lattice QCDen_US
dc.typeArticleen_US
dc.identifier.doi10.1103/PhysRevD.87.074502en_US
dc.identifier.journalPHYSICAL REVIEW Den_US
dc.citation.volume87en_US
dc.citation.issue7en_US
dc.citation.spage0en_US
dc.citation.epage0en_US
dc.contributor.department物理研究所zh_TW
dc.contributor.departmentInstitute of Physicsen_US
dc.identifier.wosnumberWOS:000317197300003en_US
dc.citation.woscount29en_US
顯示於類別:期刊論文


文件中的檔案:

  1. 6f5312077efa49d5badb2e252dc31925.pdf

若為 zip 檔案,請下載檔案解壓縮後,用瀏覽器開啟資料夾中的 index.html 瀏覽全文。