6 papers
Search for R-parity violation with a Ubar Dbar Dbar coupling at sqrt(s)=189 GeV
The DELPHI Collaboration, P. Abreu
Searches for pair production of gauginos and squarks in e+e- collisions at a centre-of-mass energy of 189 GeV have been performed on data corresponding to an integrated luminosity…
Measurements of the B^0_s and Λ_b Lifetimes
The OPAL Collaboration, K. Ackerstaff et al
This paper presents updated measurements of the lifetimes of the B^0_s meson and the Λ_b baryon using 4.4 million hadronic Z^0 decays recorded by the OPAL detector at LEP from 1990…
Measurement of triple gauge boson couplings from W^+W^- production at sqrt{s} = 172 GeV
The OPAL Collaboration, K. Ackerstaff et al
We present measurements of triple gauge boson coupling parameters using data recorded by the OPAL detector at LEP2 at a centre-of-mass energy of 172 GeV. A total of 120 W-pair cand…
A Measurement of the B_s^0 Lifetime using Reconstructed D_s^- Mesons
The OPAL Collaboration, K. Ackerstaff et al
We report a measurement of the B^0_s meson lifetime from B_s^0 -> D^-_s X decays, where D_s^- mesons are reconstructed in the D_s^- -> phi pi^- and D_s^- -> K^{*0} K^- decay channe…
Measurement of f(c -> D^*+ X), f(b -> D^*+ X) and Gamma_cc(bar)/Gamma_had using D^*+/- Mesons
The OPAL Collaboration, K. Ackerstaff et al
The production rates of D^*+/- mesons in charm and bottom events at centre-of-mass energies of about 91 GeV and the partial width of primary cc(bar) pairs in hadronic Z^0 decays ha…
A Study of B Meson Oscillations Using Hadronic Z^0 Decays Containing Leptons
The OPAL Collaboration, K. Ackerstaff et al
An event sample enriched in semileptonic decays of b hadrons is selected using an inclusive lepton selection from approximately 3.0 million hadronic Z^0 decays collected with the O…