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First measurement of the B(S) meson mass

Research output: Contribution to journalJournal article

Published

Journal publication date1993
JournalPhysics Letters B
Journal number1-4
Volume311
Number of pages12
Pages425-436
Original languageEnglish

Abstract

In a sample of about 1.1 million hadronic Z decays recorded with the ALEPH detector during the 1990–1992 running of LEP, two unambiguous BS meson candidates were observed. From these events the mass of the BS meson has been measured to be 5.3686 ± 0.0056 (stat.) ± 0.0015 (syst.) GeV.