Aaij, R. et al. (LHCb Collaboration)R. et al. (LHCb Collaboration)AaijPISIN CHEN2019-12-262019-12-262013https://scholars.lib.ntu.edu.tw/handle/123456789/441035Observation of B0<inf>s</inf> – B0<inf>s</inf> mixing and measurement of mixing frequencies using semileptonic B decaysjournal article10.1140/epjc/s10052-013-2655-82-s2.0-84937644858https://www.scopus.com/inward/record.uri?eid=2-s2.0-84937644858&doi=10.1140%2fepjc%2fs10052-013-2655-8&partnerID=40&md5=29e228b3b506a9ddf0fee490adcb4665