The shadowing of high-energy cosmic rays by the Moon has been observed with a significance of 9.4 standard deviations with the L3 + C muon spectrometer at CERN. A significant effect of the Earth magnetic field is observed. Since no event deficit on the east side of the Moon has been observed, an upper limit at 90% confidence level on the antiproton to proton ratio of 0.11 is obtained for primary energies around 1 TeV. (c) 2005 Elsevier B.V. All rights reserved.

Measurement of the shadowing of high-energy cosmic rays by the Moon: A search for TeV-energy antiprotons / P., A., O., A., M., A.B., M., V.D.A., J., A., G., A., J., A., A., A., M. G., A., H., A., V. P., A., F., A., A., A., T., A., T., A., Bagnaia, P., A., B., G., B., L., B., J., B., et al.. - In: ASTROPARTICLE PHYSICS. - ISSN 0927-6505. - 23:4(2005), pp. 411-434. [10.1016/j.astropartphys.2005.02.002]

Measurement of the shadowing of high-energy cosmic rays by the Moon: A search for TeV-energy antiprotons

BAGNAIA, Paolo;BORGIA, BRUNO;DIONISI, Carlo;GENTILE, Simonetta;GIAGU, Stefano;LONGO, Egidio;LUCI, Claudio;ORGANTINI, Giovanni;PARAMATTI, Riccardo;
2005

Abstract

The shadowing of high-energy cosmic rays by the Moon has been observed with a significance of 9.4 standard deviations with the L3 + C muon spectrometer at CERN. A significant effect of the Earth magnetic field is observed. Since no event deficit on the east side of the Moon has been observed, an upper limit at 90% confidence level on the antiproton to proton ratio of 0.11 is obtained for primary energies around 1 TeV. (c) 2005 Elsevier B.V. All rights reserved.
2005
01 Pubblicazione su rivista::01a Articolo in rivista
Measurement of the shadowing of high-energy cosmic rays by the Moon: A search for TeV-energy antiprotons / P., A., O., A., M., A.B., M., V.D.A., J., A., G., A., J., A., A., A., M. G., A., H., A., V. P., A., F., A., A., A., T., A., T., A., Bagnaia, P., A., B., G., B., L., B., J., B., et al.. - In: ASTROPARTICLE PHYSICS. - ISSN 0927-6505. - 23:4(2005), pp. 411-434. [10.1016/j.astropartphys.2005.02.002]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/231153
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