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Comparison of available measurements of the absolute air-fluorescence yield and determination of its global average value

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Rosado Vélez, Jaime and Blanco Ramos, Francisco and Arqueros Martínez, Fernando (2011) Comparison of available measurements of the absolute air-fluorescence yield and determination of its global average value. In International Symposium on the Recent Progress of Ultra-High Energy Cosmic Ray Observation. AIP Conference Proceedings, 1367 . American Institute of Physics, pp. 34-39. ISBN 978-0-7354-0927-9

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Official URL: http://dx.doi.org/10.1063/1.3628711




Abstract

Experimental results of the absolute air-fluorescence yield are given very often in different units (photons/MeV or photons/m) and for different wavelength intervals. In this work we present a comparison of available results normalized to its value in photons/MeV for the 337 nm band at 1013 hPa and 293 K. The conversion of photons/m to photons/MeV requires an accurate determination of the energy deposited by the electrons in the field of view of the experimental set-up. We have calculated the energy deposition for each experiment by means of a detailed Monte Carlo simulation and the results have been compared with those assumed or calculated by the authors. As a result, corrections to the reported fluorescence yields are proposed. These corrections improve the compatibility between measurements in such a way that a reliable average value with uncertainty at the level of 5% is obtained.


Item Type:Book Section
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© 2011 American Institute of Physics.
ISSN: 0094-243X
International Symposium on the Recent Progress of Ultra-High Energy Cosmic Ray Observation (2010. Aichi, Japón)
This work has been supported by the Spanish Ministerio de Ciencia e Innovacion (FPA2009-07772 and CONSOLIDER CPAN CSD2007-42) and “Comunidad de Madrid” (Ref.: 910600). J. Rosado acknowledges a PhD grant from “Universidad Complutense de Madrid”. The authors thank our colleagues of the Auger collaboration for fruitful discussions and comments on this work.

Uncontrolled Keywords:Electron beam; Photon yields; Nitrogen; Emission; NM
Subjects:Sciences > Physics > Nuclear physics
ID Code:38587
Deposited On:28 Jul 2016 11:03
Last Modified:10 Dec 2018 14:58

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