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arxiv: 1703.07678 · v2 · pith:FYKOJB6Znew · submitted 2017-03-22 · ✦ hep-ex

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

O. Adriani , E. Berti , L. Bonechi , M. Bongi , R. D'Alessandro , M. Haguenauer , Y. Itow , T. Iwata
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K. Kasahara Y. Makino K. Masuda E. Matsubayashi H. Menjo Y. Muraki P. Papini S. Ricciarini T. Sako N. Sakurai M. Shinoda T. Suzuki T. Tamura A. Tiberio S. Torii A. Tricomi W.C. Turner M. Ueno Q.D. Zhou
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classification ✦ hep-ex
keywords datamodelscollisionscross-sectionforwardlhcfproductionsqrt
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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 $\sqrt{s}$ = 13 TeV. The results from the analysis of 0.191 $\mathrm{nb^{-1}}$ 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.

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