Search Results - "Piegaia, R."
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A new measurement of the spin-dependent structure function g1( x) of the deuteron
Published in Physics letters. B (01-08-1995)“…We present a new measurement of the spin-dependent structure function g 1 d of the deuteron in deep inelastic scattering of 190 GeV polarised muons on…”
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The Pierre Auger Cosmic Ray Observatory
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (21-10-2015)“…The Pierre Auger Observatory, located on a vast, high plain in western Argentina, is the world׳s largest cosmic ray observatory. The objectives of the…”
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Depth of maximum of air-shower profiles at the Pierre Auger Observatory. II. Composition implications
Published in Physical review. D, Particles, fields, gravitation, and cosmology (31-12-2014)“…Using the data taken at the Pierre Auger Observatory between December 2004 and December 2012, we have examined the implications of the distributions of depths…”
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Muons in air showers at the Pierre Auger Observatory: Mean number in highly inclined events
Published in Physical review. D, Particles, fields, gravitation, and cosmology (06-02-2015)“…The Pierre Auger collaboration reports new results bearing on the composition of cosmic rays. The muon number of air showers, created by cosmic rays and…”
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Improved limit to the diffuse flux of ultrahigh energy neutrinos from the Pierre Auger Observatory
Published in Physical review. D, Particles, fields, gravitation, and cosmology (26-05-2015)“…The Pierre Auger Collaboration reports on its search for ultra high energy (UHE) neutrinos in the EeV range, three orders of magnitude above the highest energy…”
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SEARCHES FOR ANISOTROPIES IN THE ARRIVAL DIRECTIONS OF THE HIGHEST ENERGY COSMIC RAYS DETECTED BY THE PIERRE AUGER OBSERVATORY
Published in The Astrophysical journal (01-05-2015)“…ABSTRACT We analyze the distribution of arrival directions of ultra-high-energy cosmic rays recorded at the Pierre Auger Observatory in 10 years of operation…”
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Measurement of the Radiation Energy in the Radio Signal of Extensive Air Showers as a Universal Estimator of Cosmic-Ray Energy
Published in Physical review letters (14-06-2016)“…We measure the energy emitted by extensive air showers in the form of radio emission in the frequency range from 30 to 80 MHz. Exploiting the accurate energy…”
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Evidence for a mixed mass composition at the ‘ankle’ in the cosmic-ray spectrum
Published in Physics letters. B (01-11-2016)“…We report a first measurement for ultrahigh energy cosmic rays of the correlation between the depth of shower maximum and the signal in the water Cherenkov…”
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Muons in air showers at the Pierre Auger Observatory: Measurement of atmospheric production depth
Published in Physical review. D, Particles, fields, gravitation, and cosmology (25-07-2014)“…The surface detector array of the Pierre Auger Observatory provides information about the longitudinal development of the muonic component of extensive air…”
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Trigger and aperture of the surface detector array of the Pierre Auger Observatory
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-01-2010)“…The surface detector array of the Pierre Auger Observatory consists of 1600 water-Cherenkov detectors, for the study of extensive air showers (EAS) generated…”
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Upper limit on the diffuse flux of ultrahigh energy tau neutrinos from the Pierre Auger Observatory
Published in Physical review letters (30-05-2008)“…The surface detector array of the Pierre Auger Observatory is sensitive to Earth-skimming tau neutrinos that interact in Earth's crust. Tau leptons from…”
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Search for ultrahigh energy neutrinos in highly inclined events at the Pierre Auger Observatory
Published in Physical review. D, Particles, fields, gravitation, and cosmology (30-12-2011)Get full text
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Evidence for spin correlation in tt production
Published in Physical review letters (19-01-2012)“…We present a measurement of the ratio of events with correlated t and t spins to the total number of tt events. This ratio f is evaluated using a…”
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Search for charged Higgs bosons in top quark decays
Published in Physics letters. B (2009)“…We present a search for charged Higgs bosons in top quark decays. We analyze the e+jets, μ+jets, ee, eμ, μμ, τe and τμ final states from top quark pair…”
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Upper limit on the cosmic-ray photon fraction at EeV energies from the Pierre Auger Observatory
Published in Astroparticle physics (01-07-2009)“…From direct observations of the longitudinal development of ultra-high energy air showers performed with the Pierre Auger Observatory, upper limits of 3.8%,…”
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Observation of the Doubly Strange b Baryon Ω b
Published in Physical review letters (05-12-2008)“…We report the observation of the doubly strange b baryon Omega_b- in the decay channel Omega_b- to J/psi Omega-, with J/psi to mu+ mu- and Omega- to Lambda K-,…”
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Description of atmospheric conditions at the Pierre Auger Observatory using the Global Data Assimilation System (GDAS)
Published in Astroparticle physics (01-04-2012)“…► Confirmation of utility of GDAS data for the site of the Pierre Auger Observatory. ► reconstruction of extensive air showers as observed by the Pierre Auger…”
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Advanced functionality for radio analysis in the Offline software framework of the Pierre Auger Observatory
Published in Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment (01-01-2011)“…The advent of the Auger Engineering Radio Array (AERA) necessitates the development of a powerful framework for the analysis of radio measurements of cosmic…”
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The exposure of the hybrid detector of the Pierre Auger Observatory
Published in Astroparticle physics (2011)“…► The hybrid exposure for events observed by the fluorescence telescopes in coincidence with at least one water-Cherenkov detector has been determined. ► The…”
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