0000000000767391

AUTHOR

G. E. Păvălaş

showing 2 related works from this author

Search for relativistic magnetic monopoles with the ANTARES neutrino telescope

2012

Magnetic monopoles are predicted in various unified gauge models and could be produced at intermediate mass scales. Their detection in a neutrino telescope is facilitated by the large amount of light emitted compared to that from muons. This paper reports on a search for upgoing relativistic magnetic monopoles with the ANTARES neutrino telescope using a data set of 116 days of live time taken from December 2007 to December 2008. The one observed event is consistent with the expected atmospheric neutrino and muon background, leading to a 90% C.L. upper limit on the monopole flux between 1.3 ¿ 10¿17 and 8.9 ¿ 10¿17 cm¿2 s¿1 sr¿1 for monopoles with velocity ß ¿ 0.625.

FLUXMuon backgroundParticle physicsGauge modelMagnetic monopolesAstrophysics::High Energy Astrophysical PhenomenaMagnetic monopoleneutrino telescopes; antares; magnetic monopoleFOS: Physical sciencesCosmic ray01 natural sciencesNuclear physics0103 physical sciencesNeutronFIELD010306 general physicsDETECTORCherenkov radiationZenithHigh Energy Astrophysical Phenomena (astro-ph.HE)NeutronsPhysicsSPECTRUMAtmospheric neutrinosMagnetic monopoleANTARES:Física::Acústica [Àrees temàtiques de la UPC]MuonCharged particles010308 nuclear & particles physicsAstronomy and AstrophysicsMonopols magnèticsUpper limitsNeutrino detectorMass scaleFISICA APLICADA[PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph]Física nuclearData setsNeutrino telescopes[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]Astrophysics - High Energy Astrophysical PhenomenaEvent (particle physics)TelescopesAstroparticle Physics
researchProduct

Deep sea tests of a prototype of the KM3NeT digital optical module: KM3NeT Collaboration

2014

The first prototype of a photo-detection unit of the future KM3NeT neutrino telescope has been deployed in the deep waters of the Mediterranean Sea. This digital optical module has a novel design with a very large photocathode area segmented by the use of 31 three inch photomultiplier tubes. It has been integrated in the ANTARES detector for in-situ testing and validation. This paper reports on the first months of data taking and rate measurements. The analysis results highlight the capabilities of the new module design in terms of background suppression and signal recognition. The directionality of the optical module enables the recognition of multiple Cherenkov photons from the same $^{40…

PhysicsPhotomultiplierPhotonPhysics and Astronomy (miscellaneous)010308 nuclear & particles physicsbusiness.industryPhysics::Instrumentation and DetectorsDetectorAstrophysics::Instrumentation and Methods for Astrophysics01 natural sciencesSignalPhotocathodeOpticsKM3NeT0103 physical sciences14. Life underwaterSensitivity (control systems)010306 general physicsbusinessEngineering (miscellaneous); Physics and Astronomy (miscellaneous)Engineering (miscellaneous)Cherenkov radiation
researchProduct