# Measurement of $\mid V_{cs} \mid$ using W decays at LEP2

Abstract : Decays of $W^{\pm}$ bosons, produced at LEP2, have been used to measure the $|V_{cs}|$ element of the Cabibbo-Kobayashi-Maskawa matrix. Values for $|V_{cs}|$ were extracted both from the measured hadronic branching ratio of $W^{\pm}$ decays and by tagging the flavour of hadronic jets produced in $W^{\pm}$ decays. Applying the two methods to the data collected during 1996 at energies of 161 and 172 GeV, DELPHI obtains $|V_{cs}| = 0.91{+0.15 \atop -0.14}({\rm stat})\pm 0.05({\rm syst})$.
Document type :
Journal articles

Cited literature [9 references]

http://hal.in2p3.fr/in2p3-00003430
Contributor : Sylvie Flores <>
Submitted on : Monday, November 16, 1998 - 9:55:04 AM
Last modification on : Saturday, March 30, 2019 - 1:22:31 AM
Long-term archiving on : Friday, May 29, 2015 - 4:10:31 PM

### Identifiers

• HAL Id : in2p3-00003430, version 1

### Citation

P. Abreu, W. Adam, T. Adye, P. Adzic, I. Ajinenko, et al.. Measurement of $\mid V_{cs} \mid$ using W decays at LEP2. Physics Letters B, Elsevier, 1998, 439, pp.209-224. ⟨in2p3-00003430⟩

Record views