0000000000356688

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showing 2 related works from this author

Observation of TeV gamma-rays from the unidentified source HESS J1841-055 with the ARGO-YBJ experiment

2013

We report the observation of a very high energy \gamma-ray source, whose position is coincident with HESS J1841-055. This source has been observed for 4.5 years by the ARGO-YBJ experiment from November 2007 to July 2012. Its emission is detected with a statistical significance of 5.3 standard deviations. Parameterizing the source shape with a two-dimensional Gaussian function we estimate an extension \sigma=(0.40(+0.32,-0.22}) degree, consistent with the HESS measurement. The observed energy spectrum is dN/dE =(9.0-+1.6) x 10^{-13}(E/5 TeV)^{-2.32-+0.23} photons cm^{-2} s^{-1} TeV^{-1}, in the energy range 0.9-50 TeV. The integral \gamma-ray flux above 1 TeV is 1.3-+0.4 Crab units, which is…

PhysicsHigh Energy Astrophysical Phenomena (astro-ph.HE)Range (particle radiation)PhotonDegree (graph theory)010308 nuclear & particles physicsSettore FIS/01 - Fisica SperimentaleGamma rayFluxFOS: Physical sciencesAstronomy and AstrophysicsAstrophysics01 natural sciencesgamma raysWavelengthSettore FIS/05 - Astronomia E AstrofisicaSpace and Planetary ScienceCoincident0103 physical sciencesGamma Rays Argo-YBJ Extended Air Shower DetectorsAstrophysics - High Energy Astrophysical Phenomena010303 astronomy & astrophysicsgeneral [gamma rays]Energy (signal processing)
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Electroweak measurements in electron-positron collisions at W-boson-pair energies at LEP

2013

The ALEPH, DELPHI, L3, OPAL collaborations and LEP Electroweak Working Group.-- arXiv:1302.3415

Top quarkPARTICLE PHYSICS; LARGE ELECTRON POSITRON COLLIDER; ALEPH; DELPHI; L3; OPALElectron–positron annihilationPrecision measurements at W-pair energiesWW bosonGeneral Physics and AstronomyCOLOR DIPOLE MODEL01 natural sciences7. Clean energyZZ bosonMathematical SciencesHigh Energy Physics - Experimentelectroweak interactionsHigh Energy Physics - Experiment (hep-ex)High Energy Physics - Phenomenology (hep-ph)electron-positron physics[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]FERMION-LOOP SCHEMEANOMALOUS MAGNETIC-MOMENTOF-MASS ENERGIES; TOP-QUARK MASS; CARLO EVENT GENERATOR; HADRONIC Z-DECAYS; INVARIANT YFS EXPONENTIATION; ANOMALOUS MAGNETIC-MOMENT; (UN)STABLE W+W-PRODUCTION; FERMION-LOOP SCHEME; COLOR DIPOLE MODEL; LEADING ORDER QCDeffective coupling constantsBosonPhysicsOPALPhysicsElectroweak interactionSettore FIS/01 - Fisica Sperimentalehep-phPrecision measurements at WW-pair energiesRadiative correctionsALEPHNuclear & Particles PhysicsLARGE ELECTRON POSITRON COLLIDER3. Good healthRadiative correctionHigh Energy Physics - PhenomenologyOF-MASS ENERGIESDecays of heavy intermediate gauge bosonsINVARIANT YFS EXPONENTIATIONPrecision measurements at W-pair energieFermion-antifermion productionL3Physical SciencesComputingMethodologies_DOCUMENTANDTEXTPROCESSINGPARTICLE PHYSICSFísica nuclearProduction (computer science)decays of heavy intermediate gauge bosons; neutral weak current; w boson; tests of the standard model; precision measurements at w-pair energies; fermion-antifermion production; top quark; electron-positron physics; electroweak interactions; effective coupling constants; higgs boson; z boson; radiative correctionsFermion–antifermion productionELECTROWEAK INTERACTIONTests of the Standard ModelParticle Physics - ExperimentParticle physicsZ bosonElectron-positron physicElectroweak interactionsLEADING ORDER QCDHiggs boson(UN)STABLE W+W-PRODUCTIONFOS: Physical sciencesdecays of heavy intermediate gauge bosonsddc:500.2Decays of heavy intermediate gauge bosonEffective coupling constantPartícules (Física nuclear)Standard ModelNuclear physicsPhysics and Astronomy (all)Neutral weak current0103 physical sciencesddc:530010306 general physicsTOP-QUARK MASSEffective coupling constantsDELPHIElectron–positron physicshep-ex010308 nuclear & particles physicsBranching fractionHigh Energy Physics::PhenomenologyCARLO EVENT GENERATORTop quarkradiative correctionsElectron-positron physics; Electroweak interactions; Decays of heavy intermediate gauge bosons; Fermion-antifermion production; Precision measurements at W-pair energies; Tests of the Standard Model; Radiative corrections; Effective coupling constants; Neutral weak current; Z boson; W boson; Top quark; Higgs bosonHADRONIC Z-DECAYSCol·lisions (Física nuclear)[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]Experimental High Energy PhysicsLarge Electron–Positron ColliderW bosonHigh Energy Physics::ExperimentElectron-positron physics
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