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Measurement of forward photon production cross-section in proton–proton collisions at s=13TeV with the LHCf detector

O. Adriani,H. Menjo,T. Tamura,E. Berti,N. Sakurai,M. Shinoda,T. Iwata,L. Bonechi,S. Torii,Y. Itow,Y. Makino,M. Ueno,Q.D. Zhou,A. Tiberio,K. Kasahara,Y. Muraki,A. Tricomi,P. Papini,T. Suzuki,M. Bongi,W.C. Turner,K. Masuda,T. Sako, E. Matsubayashi,R. D'Alessandro,M. Haguenauer,S. Ricciarini

PHYSICS LETTERS B（2018）

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Abstract
In this paper, we report the production cross-section of forward photons in the pseudorapidity regions of eta > 10.94 and 8.99 > eta > 8.81, measured by the LHCf experiment with proton-proton collisions at root s = 13 TeV. The results from the analysis of 0.191 nb(-1 )of data obtained in June 2015 are compared to the predictions of several hadronic interaction models that are used in air-shower simulations for ultra-high-energy cosmic rays. Although none of the models agree perfectly with the data, EPOS-LHC shows the best agreement with the experimental data among the models. (C) 2018 The Author(s). Published by Elsevier B.V.
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Key words
lhcf detector,proton–proton collisions,photon production,cross-section
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