Horizontal Air Showers of Energies Above 10<sup>13</sup> eV

Nagano, M.; Hara, T.; Kawaguchi, S.; Mikamo, S.; Suga, K.; Tanahashi, G.; Matano, T.

doi:10.1143/jpsj.30.33

Cited by 23 publications

(15 citation statements)

References 36 publications

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“…Similar limits have been obtained recently by the EASTOP Collaboration [92]. Muon-poor showers are selected in the Tokyo data [90], so that the limit is stronger for ν e (ν e ) fluxes, which actually dominate the neutrino-induced horizontal air shower signal. Figure 18 shows the rate of (muon-poor) horizontal showers associated with the neutrino emission by active galaxies.…”

Section: Horizontal Air Showers Revisitedsupporting

confidence: 56%

“…Horizontal shower measurements [90] have been compared to expectations from diffuse AGN fluxes in Ref. [89], where the potential of air shower arrays for detection of diffuse neutrino fluxes was demonstrated.…”

Section: Horizontal Air Showers Revisitedmentioning

confidence: 99%

“…The data points are from Ref. [90] and the dotted line shows the shower rate expected from muons form π and K decay. [36]; thin solid lines show several models due to Szabo and Protheroe [38]; and the dash line is from Ref.…”

Section: Horizontal Air Showers Revisitedmentioning

confidence: 99%

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Particle astrophysics with high energy neutrinos

1995

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The topic of this review is the particle astrophysics of high energy neutrinos. High energy is defined as E ν > 100 MeV. Main topics include: -atmospheric neutrinos and muons from π, K and charm decay. They probe uncharted territory in neutrino oscillations and constitute both the background and calibration of high energy neutrino telescopes, -sources of high energy neutrino beams: the galactic plane, the sun, X-ray binaries, supernova remnants and interactions of extra-galactic cosmic rays with background photons, -an extensive review of the mechanisms by which active galaxies may produce high energy particle beams, -high energy neutrino signatures of cold dark matter and, -a brief review of detection techniques (water and ice Cherenkov detectors, surface detectors, radio-and acoustic detectors, horizontal airshower arrays) and the instruments under construction.

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Section: Horizontal Air Showers Revisitedsupporting

confidence: 56%

Section: Horizontal Air Showers Revisitedmentioning

confidence: 99%

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Particle astrophysics with high energy neutrinos

1995

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“…Cosmic ray particles have been observed up t o energies exceeding loz0 eV [4], about 100 times the Superconducting Super Collider (SSC) energy, and thus have a unique potential for studying the cross section for charmed par-ticle production a t energies impossible t o achieve with current technology in controlled experiments. More iniportantly.…”

Section: Introductionmentioning

confidence: 99%

Empirical determination of the very high energy heavy quark cross section from nonaccelerator data

et al. 1994

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To cosmic rays incident near the horizon the Earth's atmosphere represents a beam dump with a slant depth reaching 36 000 g cm-2 at 90". The prompt decay of a heavy quark produced by very high energy cosmic ray showers will leave an unmistakable signature in this dump. We translate the failure of experiments to detect such a signal into an upper limit on the heavy quark hadroproduction cross section in the energy region beyond existing accelerators. Our results disfavor any rapid growth of the cross section or the gluon structure function beyond conservative estimates based on perturbative QCD. PACS number(s): 13.85. Tp, 13.85.Ni, 96.40.Pq

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“…There are, however, experiments which seem to show an anomalous high rate of horizontal air showers produced by inelastic scattering of muons on nucleons [1][2][3]. The abundant fraction of nuclear induced events can be explained by a strongly increasing muon-nucleon cross-section at high energies, which is in contrast to muon-nucleon data obtained with accelerator muons.…”

Section: Introductionmentioning

confidence: 99%