Recent results from the LHCf experiment

Tiberio, A.; Adriani, O.; Berti, E.; Bonechi, L.; Bongi, M.; Castellini, G.; D'Alessandro, R.; Del Prete, M.; Haguenauer, M.; Itow, Y.; Kasahara, K.; Kawade, K.; Makino, Y.; Masuda, K.; Matsubayashi, E.; Menjo, H.; Mitsuka, G.; Muraki, Y.; Papini, P.; Perrot, A. L.; Pfeiffer, D.; Ricciarini, S.; Sako, T.; Sakurai, N.; Shimizu, Y.; Sugiura, Y.; Suzuki, T.; Tamura, T.; Torii, S.; Tricomi, Alessia Rita; Turner, W. C.; Zhou, Q.

doi:10.1051/epjconf/20159601031

The LHC-forward (LHCf) experiment, situated at the LHC accelerator, has measured neutral particles production in a very forward region (pseudo-rapidity > 8.4) in proton-proton and proton-lead collisions. The main purpose of the LHCf experiment is to test hadronic interaction models used in cosmic rays experiments to simulate cosmic rays induced air-showers in Earth's atmosphere. The experiment is composed of two independent detectors located at 140m from the ATLAS interaction point (IP1) on opposite sides; each detector is composed of two sampling calorimeters. Latest physics results from p-p and p-Pb collisions (at root s = 7 TeV and 5.02 TeV respectively) will be discussed in this paper; in particular, the inclusive energy spectra of neutrons in p-p collisions and the transverse momentum spectra of neutral pions for different pseudo-rapidity ranges in p-Pb collisions will be shown.