12,000

We have over 12,000 students, from over 100 countries, within one of the safest campuses in the UK

93%

93% of Lancaster students go into work or further study within six months of graduating

Home > Research > Publications & Outputs > Production of D**(s) mesons in hadronic Z decays
View graph of relations

« Back

Production of D**(s) mesons in hadronic Z decays

Research output: Contribution to journalJournal article

Published

Journal publication date31/01/2002
JournalPhysics Letters B
Journal number1-2
Volume526
Number of pages16
Pages34-49
Original languageEnglish

Abstract

The production rates of the orbitally excited mesons, Ds1± and , are measured with the 4.1 million hadronic Z decays recorded by the ALEPH detector during 1991–1995. The mesons are reconstructed in the decay modes , and . The production rate of the Ds1± is measured to be f(Z→Ds1±)=(0.52±0.09±0.06)%, under the assumption that the two considered decay modes of the Ds1± saturate the branching ratio. The production rate of the is determined to be , assuming that the branching fraction of the decay is 45%. The production rates in and decays are measured separately.