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      Precise Measurement of the Absolute Yield of Fluorescence Photons in Atmospheric Gases

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          Abstract

          We have performed a measurement of the absolute yield of fluorescence photons at the Fermilab Test Beam. A systematic uncertainty at 5% level was achieved by the use of Cherenkov radiation as a reference calibration light source. A cross-check was performed by an independent calibration using a laser light source. A significant improvement on the energy scale uncertainty of Ultra-High Energy Cosmic Rays is expected.

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          Author and article information

          Journal
          19 January 2011
          Article
          10.1016/j.nuclphysbps.2011.03.048
          1101.3799

          http://arxiv.org/licenses/nonexclusive-distrib/1.0/

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          Nucl.Phys.Proc.Suppl.212-213:356-361,2011
          To appear in the Proceedings of CRIS 2010, Cosmic Ray International Seminar -- 100 years of Cosmic Ray Physics: from pioneering experiments to physics in space, Catania, Italy, 13-17 September 2010
          astro-ph.IM astro-ph.HE

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