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Fassò, Francesco; Giacobbe, Andrea; Sansonetto, Nicola

doi:10.1070/rd2005v010n03abeh000315

Cited by 62 publications

(55 citation statements)

References 26 publications

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“…The Monte Carlo simulation of the beam line and detectors is based on GEANT3 [20] and the hadron production yields from the target are calculated by FLUKA [21]. The calculated neutrino flux is adjusted to agree with the ND ν µ -CC data [17].…”

mentioning

confidence: 99%

Search for Muon-Neutrino to Electron-Neutrino Transitions in MINOS

Adamson¹,

Andreopoulos²,

Arms³

et al. 2009

Phys. Rev. Lett.

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This Letter reports on a search for νμ→νe transitions by the MINOS experiment based on a 3.14×1020 protons-on-target exposure in the Fermilab NuMI beam. We observe 35 events in the Far Detector with a background of 27±5(stat)±2(syst) events predicted by the measurements in the Near Detector. If interpreted in terms of νμ→νe oscillations, this 1.5σ excess of events is consistent with sin⁡2(2θ13) comparable to the CHOOZ limit when |Δm2|=2.43×10-3eV2 and sin⁡2(2θ23)=1.0 are assumed

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mentioning

confidence: 99%

Search for Muon-Neutrino to Electron-Neutrino Transitions in MINOS

Adamson¹,

Andreopoulos²,

Arms³

et al. 2009

Phys. Rev. Lett.

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“…The air showers have been generated with zenith angle θ distributed as sin θ cos θ (with θ < 65 • ), according to the projection on a surface detector of a isotropic flux of cosmic rays, and with energy ranging between 10 17 eV and 10 19.5 eV, according to a power law spectrum (spectral index γ = −1) and in intervals of 0.5 in the logarithm of energy. Simulations are performed using QGSJET-II.03 [44], QGSJET-I [45] and Epos-1.99 [46] as hadronic interaction models at high energy and FLUKA [47] at low energy. Moreover, seasonal models of the atmospheric conditions (pressure, temperature and air density) as measured in Malargüe [48] are used in addition to the US standard model [49].…”

Section: Time Dependent Simulations With the Full Monte Carlo Approachmentioning

confidence: 99%

Measurement of the cosmic ray energy spectrum using hybrid events of the Pierre Auger Observatory

Settimo¹

2012

Eur. Phys. J. Plus

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Abstract. The energy spectrum of ultra-high energy cosmic rays above 10 18 eV is measured using the hybrid events collected by the Pierre Auger Observatory between November 2005 and September 2010. The large exposure of the Observatory allows the measurement of the main features of the energy spectrum with high statistics. Full Monte Carlo simulations of the extensive air showers (based on the CORSIKA code) and of the hybrid detector response are adopted here as an independent cross check of the standard analysis [1]. The dependence on mass composition and other systematic uncertainties are discussed in detail and, in the full Monte Carlo approach, a region of confidence for flux measurements is defined when all the uncertainties are taken into account. An update is also reported of the energy spectrum obtained by combining the hybrid spectrum and that measured using the surface detector array.PACS. 96.50.S-Cosmic rays -96.50.sb energy spectra -96.50.sd extensive air shower -98.70.Sa galactic and extragalactic

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“…To simulate the hadron production yields from the carbon target, FLUKA [52] is used in this analysis. Finally, NEUGEN3 [53] is used in order to simulate neutrino interactions and the re-interactions of the produced hadrons within the nuclei.…”

Section: Monte Carlo and Reconstructionmentioning

confidence: 99%

Electron Neutrino Appearance in the MINOS Experiment

Holin

2010

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The MINOS experiment is a long-baseline neutrino oscillation experiment which sends a high intensity muon neutrino beam through two functionally identical detectors, a Near detector at the Fermi National Accelerator Laboratory in Illinois, 1km from the beam source, and a Far detector, 734km away, in the Soudan Mine in Minnesota.MINOS may be able to measure the neutrino mixing angle parameter sin 2 2θ 13 for the first time. Detector granularity, however, makes it very hard to distinguish any ν e appearance signal events characteristic of a non-zero value of θ 13 from background neutral current (NC) and short-track ν µ charged current (CC) events. Also, uncertainties in the hadronic shower modeling in the kinematic region characteristic of this analysis are relatively large. A new data-driven background decomposition method designed to address those issues is developed and its results presented. By removing the long muon tracks from ν µ -CC events, the Muon Removed Charge Current (MRCC) method creates independent pseudo-NC samples that can be used to correct the MINOS Monte Carlo to agree with the high-statistics Near detector data and to decompose the latter into components so as to predict the expected Far detector background. The MRCC method also provides an important cross-check in the Far detector to test the background in the signal selected region.MINOS finds a 1.0-1.5 σ ν e -CC excess above background in the Far detector data, depending on method used, for a total exposure of 3.14×10 20 protons-on-target. Interpreting this excess as signal, MINOS can set limits on sin 2 2θ 13 . Using the MRCC method, MINOS sets a limit of sin 2 2θ 13 < 0.265 at the 90% confidence limit for a CP-violating phase δ = 0.3

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Untitled

Cited by 62 publications

References 26 publications

Search for Muon-Neutrino to Electron-Neutrino Transitions in MINOS

Search for Muon-Neutrino to Electron-Neutrino Transitions in MINOS

Measurement of the cosmic ray energy spectrum using hybrid events of the Pierre Auger Observatory

Electron Neutrino Appearance in the MINOS Experiment

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