activity
19962026
most citedDecay-mode independent searches for new scalar bosons with the OPAL detector at LEP

164 citations · 2.5k across the 68 of their papers we have counts for

collaborators

69 papers

hep-ex2026

A-GHOST: High-rate streaming of trigger-level data to programmable GPU inference

I. Xiotidis, N. Clarke Hall, M. S. Larson +11

A-GHOST (A Global Heterogeneous Online Scouting Trigger) is an R&D effort investigating high-rate streaming readout architectures for high-energy physics (HEP) experiments. The cen…

physics.ins-det2020★ 4 cited

CentOS Linux for the ATLAS MUCTPI Upgrade

R. Spiwoks, A. Armbruster, P. Czodrowski +11

A new Muon-to-Central-Trigger Processor Interface (MUCTPI) was built as part of the upgrade of the ATLAS Level-1 trigger system for the next Run of the Large Hadron Collider at CER…

hep-ex2011★ 56 cited

Determination of αS using OPAL hadronic event shapes at sqrt(s) = 91 - 209 GeV and resummed NNLO calculations

The OPAL Collaboration

Hadronic event shape distributions from e+e- annihilation measured by the OPAL experiment at centre-of-mass energies between 91 GeV and 209 GeV are used to determine the strong cou…

hep-ex2010★ 1 cited

Highlights from ATLAS

Thorsten Wengler

The ATLAS experiment has been taking data efficiently since LHC collisions started, first at the injection energy of 450 GeV/beam and at 1.18 TeV/beam in 2009, then at 3.5 TeV/beam…

hep-ex2009★ 4 cited

Sigma-antihyperon correlations in Z0 decay and investigation of the baryon production mechanism

The OPAL Collaboration

Data collected around sqrt{s}=91 GeV by the OPAL experiment at the LEP e+e- collider are used to study the mechanism of baryon formation. As the signature, the fraction of Sigma-hy…

hep-ex2008★ 110 cited

The FP420 R&D Project: Higgs and New Physics with forward protons at the LHC

M. G. Albrow, R. B. Appleby, M. Arneodo +95

We present the FP420 R&D project, which has been studying the key aspects of the development and installation of a silicon tracker and fast-timing detectors in the LHC tunnel at 42…

physics.ins-det2007★ 2 cited

The ATLAS Level-1 Trigger: Status of the System and First Results from Cosmic-Ray Data

David Berge

The ATLAS detector at CERN's Large Hadron Collider (LHC) will be exposed to proton-proton collisions from beams crossing at 40 MHz. At the design luminosity of 10^34 cm^-2 s^-1 the…

hep-ex2007★ 3 cited

Inclusive Jet Production in Photon-Photon Collisions at sqrt(s_ee) from 189 to 209 GeV

The OPAL collaboration

Inclusive jet production (e+e- -> e+e- +jet+X) is studied in collisions of quasi-real photons radiated by the LEP beams at e+e- centre-of-mass energies sqrt see from 189 to 209 GeV…

hep-ex2006

Determination of the strong coupling constant at LEP

T. Wengler

Multi-hadronic events produced in e+e- collisions provide an excellent laboratory to study QCD, the theory of strong interactions, and in particular to determine the strong couplin…

hep-ex2006★ 6 cited

QCD coherence and correlations of particles with restricted momenta in hadronic Z decays

The OPAL collaboration, G. Abbiendi

QCD coherence effects are studied based on measurements of correlations of particles with either restricted transverse momenta, pT<pTcut, where pT is defined with respect to the th…

hep-ex2005★ 121 cited

Measurement of event shape distributions and moments in e+e- -> hadrons at 91-209 GeV and a determination of alpha_s

The OPAL Collaboration, G. Abbiendi

We have studied hadronic events from e+e- annihilation data at centre-of-mass energies from 91 to 209 GeV. We present distributions of event shape observables and their moments at…

hep-ex2004

Jet production in two-photon collisions at LEP

Thorsten Wengler

Jet and di-jet production are studied in collisions of quasi-real photons collected during the LEP2 program at e+e- center-of-mass energies from 189 to 209 GeV. OPAL reports good a…

physics.comp-ph2003★ 10 cited

Architecture of the ATLAS High Level Trigger Event Selection Software

Monika Grothe

The ATLAS High Level Trigger (HLT) consists of two selection steps: the second level trigger and the event filter. Both will be implemented in software, running on mostly commodity…

hep-ex2003★ 76 cited

Search for Stable and Long-Lived Massive Charged Particles in e+e- Collisions at sqrt(s) = 183-209 GeV

The OPAL collaboration

A search for stable and long-lived massive particles of electric charge |Q/e|=1 or fractional charges of 2/3, 4/3, and 5/3 is reported using data collected by the OPAL detector at…

hep-ex2003★ 35 cited

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…

hep-ex2002★ 7 cited

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…

hep-ex2002★ 11 cited

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…

hep-ex2002★ 48 cited

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…

hep-ex2002★ 25 cited

Search for Associated Production of Massive States Decaying into Two Photonsin e+e- Annihilations at sqrt(s) = 88-209 GeV

The OPAL collaboration, G. Abbiendi

A search is performed for production of short-lived particles in e+e- -> XY, with X -> gamma gamma and Y -> ffbar, for scalar X and scalar or vector Y. Model-independent limits in…

hep-ex2002★ 22 cited

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…

hep-ex2002★ 164 cited

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…

hep-ex2002★ 15 cited

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…

hep-ex2002

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…

hep-ex2001★ 17 cited

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…