activity
19982021
most citedMeasurement of the Average Polarization of b Baryons in Hadronic Z^0 Decays

33 citations · 150 across the 8 of their papers we have counts for

collaborators

8 papers

physics.ins-det2021★ 9 cited

The large inner Micromegas modules for the Atlas Muon Spectrometer Upgrade: construction, quality control and characterization

J. Allard, M. Anfreville, N. Andari +71

The steadily increasing luminosity of the LHC requires an upgrade with high-rate and high-resolution detector technology for the inner end cap of the ATLAS muon spectrometer: the N…

hep-ex2001★ 18 cited

Measurement of the Branching Ratio for the Process b -> tau nu X

The OPAL collaboration, G. Abbiendi

The inclusive branching ratio for the process b -> tau nu X has been measured using hadronic Z decays collected by the OPAL experiment at LEP in the years 1992-2000. The result is:…

hep-ex1999★ 30 cited

Measurement of the W+W-gamma Cross-section and First direct Limits on Anomalous Electroweak Quartic Gauge Couplings

The OPAL collaboration, G. Abbiendi

A study of W+W- events accompanied by hard photon radiation produced in e+e- collisions at LEP is presented. Events consistent with two on-shell W-bosons and an isolated photon are…

hep-ex1998★ 8 cited

Bose-Einstein Correlations in e+e- to W+W- at 172 and 183 GeV

The OPAL Collaboration, G. Abbiendi et al

Bose-Einstein correlations between like-charge pions are studied in hadronic final states produced by e+e- annihilations at center-of-mass energies of 172 and 183 GeV. Three event…

hep-ex1998★ 9 cited

First Measurement of Z/gamma* Production in Compton Scattering of Quasi-real Photons

OPAL Collaboration, G. Abbiendi et al

We report the first observation of Z/gamma* production in Compton scattering of quasi-real photons. This is a subprocess of the reaction e+e- to e+e-Z/gamma*, where one of the fina…

hep-ex1998★ 18 cited

Search for Higgs Bosons and New Particles Decaying into Two Photons at sqrt(s) = 183 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 data sample of 57.7 pb-1 collected at an ave…

hep-ex1998★ 33 cited

Measurement of the Average Polarization of b Baryons in Hadronic Z^0 Decays

The OPAL Collaboration, G. Abbiendi et al

In the Standard Model, b quarks produced in e^+e^- annihilation at the Z^0 peak have a large average longitudinal polarization of -0.94. Some fraction of this polarization is expec…

hep-ex1998★ 25 cited

Search for Stable and Long-Lived Massive Charged Particles with the OPAL Detector at LEP in e+e- Collisions at \sqrt{s}=130-183 GeV

The OPAL Collaboration, K. Ackerstaff et al

A search for stable and long-lived massive particles of electric charge |Q/e| = 1 or 2/3, pair-produced in e+e- collisions at centre-of-mass energies from 130 to 183 GeV, is report…