activity
19972024
most citedSearch for Anomalous Production of Di-lepton Events with Missing Transverse Momentum in e+e- Collisions at sqrt(s) = 183-209 GeV

144 citations · 455 across the 10 of their papers we have counts for

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11 papers · 1 filter

hep-ex2024★ 2 cited

Measurement of the branching fraction of the decay at Belle II

Belle II Collaboration, I. Adachi, L. Aggarwal +389

We measure the branching fraction of the decay using data collected with the Belle II detector. The data contain 387 million pairs produced i…

hep-ex2003★ 144 cited

Search for Anomalous Production of Di-lepton Events with Missing Transverse Momentum in e+e- Collisions at sqrt(s) = 183-209 GeV

The OPAL collaboration, G. Abbiendi

In total 1317 di-lepton events with significant missing transverse momentum were identified in a total data sample of 680 pb-1 collected at e+e- centre-of-mass energies ranging fro…

hep-ex1998

Search for Scalar Top and Scalar Bottom Quarks at sqrt(s) = 183 GeV at LEP

The OPAL Collaboration, K. Ackerstaff et al

Searches for a scalar top quark and a scalar bottom quark have been performed using a total data sample of 56.8 pb-1 at a centre-of-mass energy of 183 GeV collected with the OPAL d…

hep-ex1998★ 35 cited

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…

hep-ex1997★ 11 cited

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…

hep-ex1997★ 9 cited

Search for a Massive Di-photon Resonance at sqrt{s} = 91-172 GeV

The OPAL Collaboration, K. Ackerstaff et al

A search for the resonant production of high mass photon pairs associated with a leptonic or hadronic system has been performed using a total data sample of 25.7 pb^-1 taken at cen…

hep-ex1997★ 28 cited

Measurement of the Photon Structure Function F_2^gamma at Low x

The OPAL Collaboration, K. Ackerstaff et al

Deep inelastic electron-photon scattering is studied using e+e- data collected by the OPAL detector at centre-of-mass energies sqrt{s_ee} ~ M_{Z^0}. The photon structure function F…

hep-ex1997★ 3 cited

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…

hep-ex1997★ 39 cited

Spin alignment of leading K*(892)^0 mesons in hadronic Z^0 decays

The OPAL Collaboration, K. Ackerstaff et al

Helicity density matrix elements for inclusive K*(892)^0 mesons from hadronic Z^0 decays have been measured over the full range of K^*0 momentum using data taken with the OPAL expe…

hep-ex1997★ 66 cited

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…

hep-ex1997★ 118 cited

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…