0000000001299776

AUTHOR

C. Maguire

showing 11 related works from this author

Cluster Formation during Expansion of Hot and Compressed Nuclear Matter Produced in Central Collisions of Au on Au at 250AMeV

1995

Complete distributions of the light and intermediate mass fragments ({ital Z}=1--6) produced within the polar angular range 1{sup {circ}}{le}{Theta}{sub lab}{le}30{sup {circ}} in highly central collisions of 250{ital A} MeV Au+Au are presented. The results of this measurement and a model analysis are used to study the expansion and clustering of the hot and compressed transient state formed in central collisions of such a heavy system. The influence of the initial conditions on the final observables is discussed.

PhysicsAngular rangeCluster (physics)General Physics and AstronomyPolarObservableAtomic physicsNuclear ExperimentNuclear matterPhysical Review Letters
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Measurement of thett¯production cross section inpp¯collisions ats=1.96  TeVusing soft electronb-tagging

2010

The authors present a measurement of the t{bar t} production cross section using events with one charged lepton and jets from p{bar p} collisions at a center-of-mass energy of 1.96 TeV. A b-tagging algorithm based on the probability of displaced tracks coming from the event interaction vertex is applied to identify b quarks from top decay. Using 318 pb{sup -1} of data collected with the CDF II detector, they measure the t{bar t} production cross section in events with at least one restrictive (tight) b-tagged jet and obtain 8.9{sub -1.0}{sup +1.0}(stat.){sub -1.0}{sup +1.1}(syst.) pb. The cross section value assumes a top quark mass of m{sub t} is presented in the paper. This result is cons…

Top quarkCollider physicsHadronTevatronGeneral Physics and AstronomyElementary particleKinematicsElectronJet (particle physics)01 natural sciences7. Clean energyParticle identificationlaw.inventionlawInvariant massFermilabNuclear ExperimentQuantum chromodynamicsPhysicsLarge Hadron ColliderLuminosity (scattering theory)Supersymmetryb-taggingHadronizationTransverse planeProduction (computer science)Collider Detector at FermilabQuarkSemileptonic decayNuclear and High Energy PhysicsParticle physicsBar (music)Astrophysics::High Energy Astrophysical PhenomenaBottom quarkMeasure (mathematics)Standard ModelNuclear physicsCross section (physics)Particle decay0103 physical sciencesCollider010306 general physicsCompact Muon SolenoidMuonBranching fraction010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyMultiplicity (mathematics)FermionVertex (geometry)Pair productionHigh Energy Physics::ExperimentEnergy (signal processing)Bar (unit)LeptonPhysical Review D
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Sideward flow in Au + Au collisions at 400 A.MeV

1995

Abstract We present new experimental data obtained with the FOPI detector at SIS, for the Au + Au heavy-ion collisions at 400 A MeV incident energy. The sideward flow, determined from a method without reaction-plane reconstruction, and the nuclear stopping are studied as a function of the centrality of the collisions. In order to study the nuclear in-medium effects, which act on the NN cross sections and potential and hence on experimental observables like the nuclear-matter flow and stopping, these results are compared with the predictions of two different QMD versions. The first one offers a fully microscopic calculation of the cross sections and potential in the G-matrix formalism and na…

Nuclear reactionPhysicsNuclear and High Energy PhysicsParticle physics010308 nuclear & particles physicsNuclear TheoryDetectorObservable01 natural sciences7. Clean energyNuclear physicsFormalism (philosophy of mathematics)0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Incident energyNuclear Experiment010306 general physics
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A highly-segmented ΔE-time-of-flight wall as forward detector of the 4π-system for charged particles at the SIS/ESR accelerator

1993

Abstract At the SIS/ESR accelerator facility at GSI in Darmstadt the 4π-detector system FOPI is under construction at present. It is designed for the investigation of central collisions of heavy ions in the energy range up to 2 A GeV. As phase I of this detector a forward wall has been built and used in various experiments. It comprizes a total number of 764 scintillators with an additional shell of 188 thin ΔE -detectors in front of it and covers the full azimuth of the polar angles from 1° to 30°. The velocity and the nuclear charge of the fragments are determined by a combined time-of-flight and ΔE measurement.

PhysicsNuclear and High Energy PhysicsRange (particle radiation)Wire chamberPhysics::Instrumentation and DetectorsNuclear TheoryDetectorScintillatorParticle detectorCharged particleNuclear physicsTime of flightIonization chamberAtomic physicsNuclear ExperimentInstrumentationNuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
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Evidence for collective expansion in light-particle emission following Au+Au collisions at 100, 150 and 250 A·MeV

1995

Abstract Light-particle emission from Au+Au collisions has been studied in the bombarding-energy range 100–250 A ·MeV, using ΔE − E R telescopes in coincidence with the FOPI detector in its phase I configuration. Center-of-mass energy spectra have been measured for Z = 1,2 isotopes emitted in central collisions at CM polar angles between 60° and 90°. Evidence for a collective expansion is reported, on the basis of the mean kinetic energies of hydrogen isotopes. Comparison is presented with statistical calculations (WIX code). For CM kinetic energy spectra, fair agreement is found between data and a recently developed transport model.

Nuclear reactionPhysicsNuclear and High Energy PhysicsRange (particle radiation)IsotopeHydrogenPhase (waves)chemistry.chemical_elementKinetic energySpectral lineCoincidenceNuclear physicschemistryAtomic physicsNuclear ExperimentNuclear Physics A
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"Table 5" of "Evidence for collective expansion in light-particle emission following Au+Au collisions at 100, 150 and 250 A��MeV"

2015

No description provided.

InclusiveAU AU --> HE XNUCLEUS NUCLEUS --> P XAU AU --> P XAU AU --> HE3 XAU AU --> TRITIUM XNUCLEUS NUCLEUS --> DEUT XNUCLEUS NUCLEUS --> TRITIUM XAU AU --> DEUT XNUCLEUS NUCLEUS --> HE3 XNUCLEUS NUCLEUS --> HE XMULT
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"Table 1" of "Evidence for collective expansion in light-particle emission following Au+Au collisions at 100, 150 and 250 A��MeV"

2015

No description provided.

InclusiveAU AU --> HE XNUCLEUS NUCLEUS --> P XAU AU --> P XAU AU --> HE3 XAU AU --> TRITIUM XEKINNUCLEUS NUCLEUS --> DEUT XNUCLEUS NUCLEUS --> TRITIUM XAU AU --> DEUT XNUCLEUS NUCLEUS --> HE3 XNUCLEUS NUCLEUS --> HE X
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"Table 2" of "Evidence for collective expansion in light-particle emission following Au+Au collisions at 100, 150 and 250 A��MeV"

2015

No description provided.

InclusiveAU AU --> HE XNUCLEUS NUCLEUS --> P XAU AU --> P XAU AU --> HE3 XAU AU --> TRITIUM XEKINNUCLEUS NUCLEUS --> DEUT XNUCLEUS NUCLEUS --> TRITIUM XAU AU --> DEUT XNUCLEUS NUCLEUS --> HE3 XNUCLEUS NUCLEUS --> HE X
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"Table 4" of "Evidence for collective expansion in light-particle emission following Au+Au collisions at 100, 150 and 250 A��MeV"

2015

No description provided.

InclusiveAU AU --> HE XNUCLEUS NUCLEUS --> P XAU AU --> P XAU AU --> HE3 XAU AU --> TRITIUM XNUCLEUS NUCLEUS --> DEUT XNUCLEUS NUCLEUS --> TRITIUM XAU AU --> DEUT XNUCLEUS NUCLEUS --> HE3 XNUCLEUS NUCLEUS --> HE XMULT
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"Table 6" of "Evidence for collective expansion in light-particle emission following Au+Au collisions at 100, 150 and 250 A��MeV"

2015

No description provided.

InclusiveAU AU --> HE XNUCLEUS NUCLEUS --> P XAU AU --> P XAU AU --> HE3 XAU AU --> TRITIUM XNUCLEUS NUCLEUS --> DEUT XNUCLEUS NUCLEUS --> TRITIUM XAU AU --> DEUT XNUCLEUS NUCLEUS --> HE3 XNUCLEUS NUCLEUS --> HE XMULT
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"Table 3" of "Evidence for collective expansion in light-particle emission following Au+Au collisions at 100, 150 and 250 A��MeV"

2015

No description provided.

InclusiveAU AU --> HE XNUCLEUS NUCLEUS --> P XAU AU --> P XAU AU --> HE3 XAU AU --> TRITIUM XEKINNUCLEUS NUCLEUS --> DEUT XNUCLEUS NUCLEUS --> TRITIUM XAU AU --> DEUT XNUCLEUS NUCLEUS --> HE3 XNUCLEUS NUCLEUS --> HE X
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