0000000000393538

AUTHOR

I.s. Zgura

showing 6 related works from this author

Centrality, rapidity and transverse momentum dependence of J/ψ suppression in Pb–Pb collisions at sNN=2.76 TeV

2014

The inclusive J/.nuclear modification factor (R-AA) in Pb-Pb collisions at root(NN)-N-S = 2.76TeVhas been measured by ALICE as a function of centrality in the e+ e-decay channel at mid-rapidity (| y| < 0.8) and as a function of centrality, transverse momentum and rapidity in the + -decay channel at forward-rapidity (2.5 < y < 4). The J/.yields measured in Pb-Pb are suppressed compared to those in ppcollisions scaled by the number of binary collisions. The RAAintegrated over a centrality range corresponding to 90% of the inelastic Pb-Pb cross section is 0.72 - 0.06(stat.) - 0.10(syst.) at mid-rapidity and 0.58 - 0.01(stat.) - 0.09(syst.) at forward-rapidity. At low transverse momentum, signi…

Nuclear physicsPhysicsNuclear and High Energy PhysicsParticle physicsTransverse momentumModification factorRapidityCentralityLower energyCharm quarkPhysics Letters B
researchProduct

Search for magnetic monopoles with the MoEDAL forward trapping detector in 2.11 fb −1 of 13 TeV proton–proton collisions at the LHC

2018

We update our previous search for trapped magnetic monopoles in LHC Run 2 using nearly six times more integrated luminosity and including additional models for the interpretation of the data. The MoEDAL forward trapping detector, comprising 222 kg of aluminium samples, was exposed to 2.11 fb−1 of 13 TeV proton–proton collisions near the LHCb interaction point and analysed by searching for induced persistent currents after passage through a superconducting magnetometer. Magnetic charges equal to the Dirac charge or above are excluded in all samples. The results are interpreted in Drell–Yan production models for monopoles with spins 0, 1/2 and 1: in addition to standard point-like couplings, …

Particle physicsNuclear and High Energy PhysicsProtonDirac (software)magnetic monopoleMagnetic monopoleFOS: Physical sciencesddc:500.2114 Physical sciences01 natural sciences7. Clean energyHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)0202 Atomic Molecular Nuclear Particle And Plasma PhysicsHigh Energy Physics - Phenomenology (hep-ph)STOPPING-POWER0103 physical sciencesFIELD010306 general physicsParticle Physics - PhenomenologyPhysicsLuminosity (scattering theory)Large Hadron ColliderInteraction point010308 nuclear & particles physicshep-exDrell–Yan processCharge (physics)hep-phNuclear & Particles Physicslcsh:QC1-999High Energy Physics - Phenomenologylcsh:PhysicsParticle Physics - Experiment
researchProduct

Direct photon production in Pb–Pb collisions atsNN=2.76 TeV

2016

Direct photon production at mid-rapidity in Pb–Pb collisions at √sNN = 2.76 TeV was studied in the transverse momentum range 0.9<pT<14 GeV/c. Photons were detected with the highly segmented electromagnetic calorimeter PHOS and via conversions in the ALICE detector material with the e+e− pair reconstructed in the central tracking system. The results of the two methods were combined and direct photon spectra were measured for the 0–20%, 20–40%, and 40–80% centrality classes. For all three classes, agreement was found with perturbative QCD calculations for pT≳5 GeV/c. Direct photon spectra down to pT≈1 GeV/c could be extracted for the 20–40% and 0–20% centrality classes. The significance of th…

Quantum chromodynamicsPhysicsNuclear and High Energy PhysicsParticle physicsPhoton010308 nuclear & particles physicsHadronBremsstrahlungPerturbative QCD01 natural sciencesParticle identificationNuclear physics0103 physical sciencesRapidityNuclear Experiment010306 general physicsGlauberPhysics Letters B
researchProduct

Beauty production in pp collisions at s=2.76 TeV measured via semi-electronic decays

2014

The ALICE Collaboration at the LHC reports measurement of the inclusive production cross section of electrons from semi-leptonic decays of beauty hadrons with rapidity |y|<0.8 and transverse momentum 1<pT<10 GeV/c, in pp collisions at s=2.76 TeV. Electrons not originating from semi-electronic decay of beauty hadrons are suppressed using the impact parameter of the corresponding tracks. The production cross section of beauty decay electrons is compared to the result obtained with an alternative method which uses the distribution of the azimuthal angle between heavy-flavour decay electrons and charged hadrons. Perturbative QCD predictions agree with the measured cross section within the exper…

PhysicsNuclear and High Energy PhysicsParticle physicsLarge Hadron Collider010308 nuclear & particles physicsHadronPerturbative QCDElectron01 natural sciences7. Clean energyNuclear physicsPhase space0103 physical sciencesQuark–gluon plasmaHigh Energy Physics::ExperimentRapidityImpact parameterNuclear Experiment010306 general physicsPhysics Letters B
researchProduct

Search for Magnetic Monopoles with the MoEDAL Forward Trapping Detector in 13 TeV Proton-Proton Collisions at the LHC

2017

MoEDAL is designed to identify new physics in the form of long-lived highly-ionising particles produced in high-energy LHC collisions. Its arrays of plastic nuclear-track detectors and aluminium trapping volumes provide two independent passive detection techniques. We present here the results of a first search for magnetic monopole production in 13 TeV proton-proton collisions using the trapping technique, extending a previous publication with 8 TeV data during LHC run-1. A total of 222 kg of MoEDAL trapping detector samples was exposed in the forward region and analysed by searching for induced persistent currents after passage through a superconducting magnetometer. Magnetic charges excee…

Magnetic monopolesProtonMagnetismPhysics beyond the Standard ModelGeneral Physics and Astronomy01 natural sciences7. Clean energyHigh Energy Physics - Experimentlaw.inventionCOLLIDERHigh Energy Physics - Experiment (hep-ex)High Energy Physics - Phenomenology (hep-ph)STOPPING-POWERlawPhysics02 Physical SciencesLarge Hadron ColliderSTABLE MASSIVE PARTICLESPhysicsMagnetismDrell–Yan processhep-phPersistent currents3. Good healthHigh Energy Physics - PhenomenologyPhysical SciencesELECTROWEAK MONOPOLEParticle Physics - ExperimentGeneral PhysicsMagnetometerPhysics MultidisciplinaryMagnetic monopoleFOS: Physical sciencesNuclear track detector114 Physical sciencesNuclear physicsPhysics and Astronomy (all)Tellurium compoundsHigh energy physics Magnetism Magnetometers Highly ionizing particles Magnetic charges Magnetic monopoles Nuclear track detector Passive detection Persistent currents Proton proton collisions Trapping techniques Tellurium compounds0103 physical sciencesHigh energy physics010306 general physicsColliderIONIZING PARTICLESScience & TechnologyProton proton collisionshep-ex010308 nuclear & particles physicsMagnetometers Highly ionizing particlesMagnetic chargesTrapping techniquesPassive detectionSTATES
researchProduct

Measurement of electrons from heavy-flavour hadron decays in p–Pb collisions at sNN=5.02TeV

2016

The production of electrons from heavy-flavour hadron decays was measured as a function of transverse momentum (pT) in minimum-bias p–Pb collisions at √sNN = 5.02 TeV using the ALICE detector at the LHC. The measurement covers the pT interval 0.5 < pT < 12 GeV/c and the rapidity range −1.065 < ycms < 0.135 in the centre-of-mass reference frame. The contribution of electrons from background sources was subtracted using an invariant mass approach. The nuclear modification factor RpPb was calculated by comparing the pT-differential invariant cross section in p–Pb collisions to a pp reference at the same centre-of-mass energy, which was obtained by interpolating measurements at √s = 2.76 TeV an…

PhysicsNuclear and High Energy PhysicsParticle physicsLarge Hadron Collider010308 nuclear & particles physicsHadronQuarkoniumNuclear matter01 natural sciences7. Clean energyParticle identificationNuclear physics0103 physical sciencesQuark–gluon plasmaHigh Energy Physics::ExperimentInvariant massRapidityNuclear Experiment010306 general physicsPhysics Letters B
researchProduct