164 citations · 1.1k across the 37 of their papers we have counts for
32 papers · 1 filter
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…
Test of non-commutative QED in the process e+e- -> gamma gamma at LEP
The OPAL collaboration
Non-commutative QED would lead to deviations from the Standard Model depending on a new energy scale Lambda_NC and a unique direction in space defined by two angles eta and xi. Her…
Measurement of Neutral-Current Four-Fermion Production at LEP2
The OPAL collaboration
Four-fermion final states qqbar e+e- and qqbar mu+mu- from neutral-current interactions in e+e- collisions are studied in the OPAL detector at LEP at centre-of-mass energies from 1…
Measurement of the Cross-Section for the Process GammaGamma -> Ppbar at sqrt(s)_ee=183-189 GeV at LEP
The OPAL collaboration, G. Abbiendi
The exclusive production of proton-antiproton pairs in the collisions of two quasi-real photons had been studied using data taken at sqrt(s)_ee=183 GeV and 189 GeV with the OPAL de…
Search for Scalar Top and Scalar Bottom Quarks at LEP
The OPAL collaboration, G. Abbiendi
Searches for a scalar top quark and a scalar bottom quark have been performed using a data sample of 438 pb-1 at centre-of-mass energies of sqrt(s) = 192 - 209 GeV collected with t…
Search for Charged Excited Leptons in e+e- Collisions at sqrt(s) = 183-209 GeV
The OPAL collaboration
A search for charged excited leptons decaying into a lepton and photon has been performed using approximately 680 pb-1 of e+e- collision data collected by the OPAL detector at LEP…
Decay-mode independent searches for new scalar bosons with the OPAL detector at LEP
The OPAL collaboration, G. Abbiendi
This paper describes topological searches for neutral scalar bosons S0 produced in association with a Z0 boson via the Bjorken process e+e- -> S0Z0 at centre-of-mass energies of 91…
Measurement of the Charm structure Function F2c of the Photon at LEP
The OPAL collaboration, G. Abbiendi
The production of charm quarks is studied in deep-inelastic electron-photon scattering using data recorded by the OPAL detector at LEP at normal e+e- centre-of-mass energies from 1…
Measurement of the Hadronic Photon Structure Function F2gamma at LEP2
The OPAL collaboration, G. Abbiendi
The hadronic structure of the photon F2gamma is measured as a function of Bjorken x and of the photon virtuality Q2 using deep-inelastic scattering data taken by the OPAL detector…
Search for Leptoquarks in Electron-Photon Scattering at sqrt(s_ee) up to 209 GeV at LEP
The OPAL collaboration, G. Abbiendi
Searches for first generation scalar and vector leptoquarks, and for squarks in R-parity violating SUSY models with the direct decay of the squark into Standard Model particles, ha…
Search for Doubly Charged Higgs Bosons with the OPAL detector at LEP
The OPAL collaboration, G. Abbiendi
A search for pair-produced doubly charged Higgs bosons has been performed using data samples corresponding to an integrated luminosity of about 614 pb-1 collected with the OPAL det…
Search for Single Top Quark Production at LEP2
The OPAL collaboration, G. Abbiendi
A search for single top quark production via flavour changing neutral currents (FCNC) was performed with data collected by the OPAL detector at the e+e- collider LEP. Approximately…
Search for Lepton Flavour Violation in e+e- Collisions at sqrt(s) = 189 - 209 GeV
The OPAL collaboration, G. Abbiendi
We search for lepton flavour violating events (e mu, e tau and mu tau) that could be directly produced in e+e- annihilations, using the full available data sample collected with th…
Measurement of Vub using b hadron semileptonic decays
The OPAL collaboration, G. Abbiendi
The magnitude of the CKM matrix element Vub is determined by measuring the inclusive charmless semileptonic branching fraction of beauty hadrons at OPAL based on b -> Xu l nu event…
Measurement of the Branching Ratio for D_s->tau nu_tau Decays
The OPAL collaboration, G. Abbiendi
Using about 3.9 million hadronic Z decays from e+e- collisions recorded by the OPAL detector at LEP at centre-of-mass energies near MZ the branching ratio for the decay D_s -> tau…
Search for the Standard Model Higgs Boson in e+e- Collisions at sqrt(s) = 192-209 GeV
The OPAL collaboration, G. Abbiendi
A search for the Standard Model Higgs boson has been performed with the OPAL detector at LEP based on the full data sample collected at sqrt(s) = 192-209 GeV in 1999 and 2000, corr…
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…
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…
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 Higgs Bosons and Other Massive States decaying into two Photons in e+e- Collisions at 189 GeV
The OPAL collaboration, G. Abbiendi et al
A search is described for the generic process e+e- to X Y, where X is a neutral heavy scalar boson decaying into a pair of photons, and Y is a neutral heavy boson (scalar or vector…
Search for Scalar Top and Scalar Bottom Quarks at sqrt(s) = 189 GeV at LEP
The OPAL Collaboration, G. Abbiendi et al
Searches for a scalar top quark and a scalar bottom quark have been performed using a data sample of 182 pb-1 at a centre-of-mass energy of 189 GeV collected with the OPAL detector…
Colour reconnection studies in e+e- -> W+W- at sqrt(s)=183 GeV
The OPAL Collaboration, G. Abbiendi et al
The predicted effects of final state interactions such as colour reconnection are investigated by measuring properties of hadronic decays of W bosons, recorded at a centre-of-mass…
Search for Baryon and Lepton Number Violating Z0 Decays
The OPAL Collaboration, G. Abbiendi et al
Using data collected with the OPAL detector at LEP, we have searched for the processes e+e- -> Z0 -> p e-, p mu- and the charge conjugate final-states. These would violate the cons…