activity
19982024
most citedBig-Bang nucleosynthesis (Particle Data Group mini-review)

4.1k citations · 5k across the 40 of their papers we have counts for

collaborators

41 papers

physics.ins-det2024★ 1 cited

Measurement of the fractional radiation length of a pixel module for the CMS Phase-2 upgrade via the multiple scattering of positrons

The Tracker Group of the CMS Collaboration

High-luminosity particle collider experiments such as the ones planned at the High-Luminosity Large Hadron Collider require ever-greater vertexing precision of the tracking detecto…

physics.ins-det2023

Evaluation of Planar Silicon Pixel Sensors with the RD53A Readout Chip for the Phase-2 Upgrade of the CMS Inner Tracker

The Tracker Group of the CMS Collaboration

The Large Hadron Collider (LHC) at CERN will undergo an upgrade in order to increase its luminosity to cms. The increased luminosity during this…

astro-ph.IM2022★ 4 cited

E-TEST prototype design report

A. Sider, L. Amez-Droz, A. Amorosi +38

E-TEST (Einstein Telescope Euregio-Meuse-Rhin Site and Technology) is a project recently funded by the European program Ineterreg Euregio Meuse-Rhine. This program is dedicated to…

astro-ph.IM2022★ 26 cited

ETpathfinder: a cryogenic testbed for interferometric gravitational-wave detectors

A. Utina, A. Amato, J. Arends +112

The third-generation of gravitational wave observatories, such as the Einstein Telescope (ET) and Cosmic Explorer (CE), aim for an improvement in sensitivity of at least a factor o…

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-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-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…

astro-ph2006★ 4.1k cited

Big-Bang nucleosynthesis (Particle Data Group mini-review)

Brian Fields, Subir Sarkar

A critical review is given of the current status of cosmological nucleosynthesis. In the framework of the Standard Model with 3 types of relativistic neutrinos, the baryon-to-photo…

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-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★ 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

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★ 19 cited

Genuine Correlations of Like-Sign Particles in Hadronic Z0 Decays

The OPAL collaboration, G. Abbiendi

Correlations among hadrons with the same electric charge produced in Z0 decays are studied using the high statistics data collected from 1991 through 1995 with the OPAL detector at…

hep-ex2001★ 1 cited

Angular Analysis of the Muon Pair Asymmetry at LEP 1

The OPAL collaboration, G. Abbiendi

Data on muon pair production obtained by the OPAL collaboration at centre of mass energies near the Z peak are analysed. Small angular mismatches between the directions of the two…

hep-ex2001★ 22 cited

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…

hep-ex2000★ 17 cited

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…

hep-ex2000★ 16 cited

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…

hep-ex2000★ 7 cited

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…

hep-ex2000★ 21 cited

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…

hep-ex2000★ 2 cited

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…

hep-ex2000★ 41 cited

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…

hep-ex2000★ 76 cited

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…