164 citations · 2.5k across the 68 of their papers we have counts for
13 papers · 1 filter
The gluon content of the photon from di-jet production at the photon-photon collider
Thorsten Wengler, Albert De Roeck
A study of di-jet measurements at a future photon collider is reported. The sensitivity to extract the gluon distribution is discussed. The results are compared with calculations f…
Production rate of bb(bar) quark pairs from gluons and bb(bar)bb(bar) events in hadronic Z Decays
The OPAL collaboration, G. Abbiendi
The rates are measured per hadronic Z decay for gluon splitting to bb(bar) quark pairs, g_bb, and of events containing two bb(bar) quark pairs, g_4b, using a sample of four-jet eve…
Measurement of the B0 Lifetime and Oscillation Frequency using B0->D*+l-v decays
The OPAL collaboration, G. Abbiendi
The lifetime and oscillation frequency of the B0 meson has been measured using B0->D*+l-v decays recorded on the Z0 peak with the OPAL detector at LEP. The D*+ -> D0pi+ decays were…
A Measurement of the Rate of Charm Production in W Decays
The OPAL collaboration, G. Abbiendi
Using data recorded at centre-of-mass energies around 183 GeV and 189 GeV with the OPAL detector at LEP, the fundamental coupling of the charm quark to the W boson has been studied…
Measurement of the Mass and Width of the W Boson in e+e- Collisions at 189 GeV
The OPAL collaboration, G. Abbiendi
The mass and width of the W boson are determined in e+e- collisions at LEP using 183 pb^-1 of data recorded at a centre-of-mass energy roots=189 GeV with the OPAL detector. The inv…
First Measurement of the Inclusive Branching Ratio of b Hadrons to phi Mesons in Z0 Decays
The OPAL collaboration, G. Abbiendi
The inclusive production rate of phi mesons from the decay of b hadrons produced in Z0 decays was measured to be Br(b->phi+X) = 0.0282+-0.0013(stat.)+-0.0019(syst.), using data col…
Searches for prompt light gravitino signatures in e+e- Collisions at sqrt{s}=189GeV
The OPAL collaboration, G. Abbiendi
Searches for final states expected in models with light gravitinos have been performed, including experimental topologies with multi-leptons with missing energy, leptons and photon…
Inclusive Photoproduction of Neutral Pions in the Photon Hemisphere at HERA
H1 Collaboration, C. Adloff
The inclusive cross section for the photoproduction of neutral pions has been measured as a function of the transverse momentum, rapidity, and Feynman x of the pizero mesons at an…
Measurement of elastic electroproduction of phi mesons at HERA
H1 Collaboration, C. Adloff
The elastic electroproduction of phi mesons is studied at HERA with the H1 detector for photon virtualities 1 < Q^2 < 15 GeV^2 and hadronic centre of mass energies 40 < W < 130 GeV…
A measurement of the tau mass and the first CPT test with tau leptons
G. Abbiendi, the OPAL collaboration
We measure the mass of the tau lepton to be 1775.1+-1.6(stat)+-1.0(syst.) MeV using tau pairs from Z0 decays. To test CPT invariance we compare the masses of the positively and neg…
Photonic events with missing energy in e+e- collisions at sqrt(s)=189 GeV
G. Abbiendi, the OPAL collaboration
Photonic events with large missing energy have been observed in e+e- collisions at a centre-of-mass energy of 189GeV using the OPAL detector at LEP. Results are presented for event…
Z boson pair production in e+e- collisions at sqrt(s) = 183 and 189 GeV
The OPAL collaboration, G. Abbiendi
A study of Z boson pair production in e+e- annihilation at center-of-mass energies near 183 GeV and 189 GeV is reported. Final states containing only leptons, (l+l-l+l- and l+l-nu…
Search for new Physics in rare B Decays
The OPAL collaboration, G. Abbiendi
A search for the decay B+- to K+-K+-pi-+ was performed using data collected by the OPAL detector at LEP. These decays are strongly suppressed in the Standard Model but could occur…