40.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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22 papers · 2 filters
Measurement of negative particle multiplicity in S-Pb collisions at 200 GeV/c per nucleon with the NA36 TPC
NA36 Collaboration, E. Andersen
A high statistics study of the negative multiplicity distribution from S-Pb collisions at 200 GeV/c per nucleon is presented. The NA36 TPC was used to detect charged particles; cor…
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…
Event-by-event fluctuations of the kaon to pion ratio in central Pb+Pb collisions at 158 GeV per Nucleon
Afanasiev, NA49 collaboration
We present the first measurement of fluctuations from event to event in the production of strange particles in collisions of heavy nuclei. The ratio of charged kaons to charged pio…
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…
WW Production Cross Section and W Branching Fractions in e+e- Collisions at 189 GeV
The OPAL collaboration, G. Abbiendi
From a data sample of 183 pb^-1 recorded at a center-of-mass energy of roots = 189 GeV with the OPAL detector at LEP, 3068 W-pair candidate events are selected. Assuming Standard M…
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…
A study of the centrally produced eta pi0 and eta pi- systems in pp interactions at 450 GeV/c
The WA102 Collaboration, D. Barberis
A partial wave analysis of the centrally produced eta pi0 and eta pi- channels has been performed in pp collisions using an incident beam momentum of 450 GeV/c. Clear a0(980) and a…
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…
A search for charmonium states produced in central pp interactions at 450 GeV/c
The WA102 Collaboration, D. Barberis
A search for centrally produced charmonium states has been presented. There is no significant evidence for any charmonium production. An upper limit of 2 nb is found for the cross…
A study of the omega omega channel produced in central pp interactions at 450 GeV/c
The WA102 Collaboration, D. Barberis
The reaction pp -> pf (omega omega) ps has been studied at 450 GeV/c and a spin analysis of the omega omega channel has been performed for the first time in central production. Evi…
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…
A study of the eta eta channel produced in central pp interactions at 450 GeV/c
The WA102 Collaboration, D. Barberis
The reaction pp -> pf (eta eta) ps has been studied at 450 GeV/c. For the first time a partial wave analysis of the centrally produced eta eta system has been performed. Signals fo…
Search for Compositeness, Leptoquarks and Large Extra Dimensions in eq Contact Interactions at HERA
H1 Collaboration, C. Adloff
The reaction e+p --> e+X is studied with the H1 detector at Hera. The data cover momentum transfers Q^2 between 200 GeV^2 and 30,000 GeV^2 and correspond to an integrated luminosit…
Elastic Photoproduction of J/psi and Upsilon Mesons at HERA
H1 Collaboration, C. Adloff
Cross sections for elastic photoproduction of J/Psi and Upsilon mesons are presented. For J/Psi mesons the dependence on the photon-proton centre-of-mass energy W_gammap is analyse…
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…
Measurement of |Vcb| using B0 to D*l nu decays
The OPAL collaboration, G. Abbiendi
The magnitude of the Cabibbo-Kobayashi-Maskawa matrix element Vcb has been measured using B0 to D*l nu decays recorded on the Z0 peak using the OPAL detector at LEP. The D* to D0 p…
Measurement of Di-jet Cross-Sections in Photoproduction and Photon Structure
H1 Collaboration, C. Adloff
The production of hard di-jet events in photoproduction at HERA is dominated by resolved photon processes in which a parton in the photon with momentum fraction x_gamma is scattere…
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…
Recent Low x and Diffractive Collider Data
Paul Newman
Selected recent data from collider experiments pertaining to the understanding of QCD at low Bjorken-x are reviewed. The status of QCD and Regge factorisation in hard diffractive i…
A study of the f0(1370), f0(1500), f0(2000) and f2(1950) observed in the centrally produced 4pi final states
The WA102 Collaboration, D. Barberis
The production and decay properties of the f0(1370), f0(1500), f0(2000) and f2(1950) have been studied in central pp interactions at 450 GeV/c. The dPT, phi and |t| distributions o…