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Production rate and decay lifetime measurements of B(s)0 mesons at LEP using D(s) and phi mesons

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Abreu, P. [--] Cortina Gil, Eduardo [UCL] DELPHI Collaboration [--]

The study of the properties of inclusive production ofD s mesons and of events in which a ϕ and a muon are present in the same jet provides two independent measurements of the probability,f s w , for a heavy quark to hadronize into a strangeB orD meson. The data sample analysed corresponds to 243,000 hadronicZ 0 decays. The combined value of these measurements isf s w =0.19±0.06±0.08. From the flight distance distributions ofD s and of (ϕ-lepton) secondary vertices, with the lepton emitted at high transverse momentum relative to the jet axis, two values are obtained for theB s 0 meson lifetime. Combining these measurements with a previous result based on the study ofD s-μ events, theB s 0 meson lifetime is measured to be: 0.96±0.37 ps.

Document type Article de périodique (Journal article) – Article de recherche
Access type Accès libre
Publication date 1994
Language Anglais
Journal information "Zeitschrift für Physik. C, Particles and fields" - Vol. 61, no.3, p. 407-420 (1994)
Publisher Springer (Berlin)
issn 0170-9739
e-issn 1431-5858
Publication status Publié
Affiliation UCL - SC/PHYS - Département de physique
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Bibliographic reference Abreu, P. ; Cortina Gil, Eduardo ; DELPHI Collaboration ; et. al. Production rate and decay lifetime measurements of B(s)0 mesons at LEP using D(s) and phi mesons. In: Zeitschrift für Physik. C, Particles and fields, Vol. 61, no.3, p. 407-420 (1994)
Permanent URL http://hdl.handle.net/2078.1/127206