The energy spectrum and the cross section of photonuclear interactions of 180 GeV muons in iron were measured at the CERN SPS using prototype modules of the ATLAS hadron calorimeter. The differential cross section (N-A/A)nudsigma/dnu for a union fractional energy loss nu = E-mu/E-mu was measured in the range 0.1 < nu < 1. The integrated cross section (N-A/A) integral(0.1)(1) nudsigma/dnu is (0.26 +/- 0.03(stat) +/- 0.03(syst)) . 10(-6) cm(2) g(-1) in agreement with the theoretical prediction of 0.267 . 10(-6) cm(2)g(-1). The best adjustment of the data to the theory is achieved for the value of sigma(gamma)N = (115 +/- 18(stat) +/- 15(syst))mub of the photon-nucleon cross section for photons with energies in the range from 18 to 180 GeV.

A measurement of the photonuclear interactions of 180 GeV muons in iron

CAVASINNI, VINCENZO;RODA, CHIARA MARIA ANGELA;
2003

Abstract

The energy spectrum and the cross section of photonuclear interactions of 180 GeV muons in iron were measured at the CERN SPS using prototype modules of the ATLAS hadron calorimeter. The differential cross section (N-A/A)nudsigma/dnu for a union fractional energy loss nu = E-mu/E-mu was measured in the range 0.1 < nu < 1. The integrated cross section (N-A/A) integral(0.1)(1) nudsigma/dnu is (0.26 +/- 0.03(stat) +/- 0.03(syst)) . 10(-6) cm(2) g(-1) in agreement with the theoretical prediction of 0.267 . 10(-6) cm(2)g(-1). The best adjustment of the data to the theory is achieved for the value of sigma(gamma)N = (115 +/- 18(stat) +/- 15(syst))mub of the photon-nucleon cross section for photons with energies in the range from 18 to 180 GeV.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11568/184239
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