Volume 364 - European Physical Society Conference on High Energy Physics (EPS-HEP2019) - Astroparticle Physics and Gravitational Waves
Latest results of the LHCf experiment
E. Berti,* O. Adriani, L. Bonechi, M. Bongi, R. D'Alessandro, G. Castellini, M. Haguenauer, Y. Itow, K. Kasahara, Y. Matsubara, H. Menjo, Y. Muraki, K. Ohashi, P. Papini, S. Ricciarini, T. Sako, N. Sakurai, K. Sato, Y. Shimizu, L. Silveri, T. Tamura, A. Tiberio, S. Torii, A. Tricomi, M. Ueno, K. Yoshida, W.C. Turner
*corresponding author
Full text: Not available
Abstract
The LHCf experiment is designed to provide precise measurements of the production spectra relative to neutral particles produced in the very forward region by high energy proton-proton and proton-ion collisions. This information is necessary in order to test and tune hadronic interaction models used by ground-based cosmic rays experiments. In order to reach this goal, LHCf makes use of two small sampling calorimeters installed in the LHC tunnel at $\mathrm{\pm}$ 140 m from IP1, both able to detect neutral particles having pseudo-rapidity $\mathrm{\eta > 8.4}$. In LHC Run II, LHCf acquired data relative to p-p collisions at $\mathrm{\sqrt{s} = }$ 13 TeV and p-Pb collisions at $\mathrm{\sqrt{s_{NN}} = }$ 8.1 TeV. In this paper, we discuss the results obtained from p-p collisions at $\mathrm{\sqrt{s} = }$ 13 TeV, focusing in particular on photon and neutron production, the two analyses already published by the collaboration.
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