FIRST RESULTS OF LHCF; VERY FORWARD PARTICLES AT LHC COLLISION

Sako, T.; Adriani, Oscar; Bonechi, L.; Bongi, Massimo; Castellini, G.; D'Alessandro, Raffaello; Fukatsu, K.; Haguenauer, M.; Iso, T.; Itow, Y.; Kasahara, K.; Kawade, K.; Mase, T.; Masuda, K.; Menjo, H.; Mitsuka, G.; Muraki, Y.; Noda, K.; Papini, P.; Perrot, A. L.; Ricciarini, S.; Shimizu, Y.; Suzuki, K.; Suzuki, T.; Taki, K.; Tamura, T.; Torii, S.; Tricomi, A.; Turner, W. C.

doi:10.1142/9789814329033_0034

The LHC forward experiment (LHCf) is specifically designed for measurements of the very forward (η>8.4) production cross sections of neutral pions and neutrons at Large Hadron Collider (LHC) at CERN. LHCf has successfully finished data taking at LHC proton-proton collisions of and in 2009–2010. During this operation, LHCf has collected 113k events of high energy showers (corresponding to ~7M inelastic collisions) at 900 GeV and ~400M showers (~350 nb-1 of delivered integrated luminosity) at 7 TeV. Analysis results with the limited sample of data demonstrate that LHCf will provide crucial data to improve the interaction models to understand ultra-high-energy cosmic-ray air showers.

FIRST RESULTS OF LHCF; VERY FORWARD PARTICLES AT LHC COLLISION / Sako, T.; Adriani, O.; Bonechi, L.; Bongi, M.; Castellini, G.; D'Alessandro, R.; Fukatsu, K.; Haguenauer, M.; Iso, T.; Itow, Y.; Kasahara, K.; Kawade, K.; Mase, T.; Masuda, K.; Menjo, H.; Mitsuka, G.; Muraki, Y.; Noda, K.; Papini, P.; Perrot, A.-L.; Ricciarini, S.; Shimizu, Y.; Suzuki, K.; Suzuki, T.; Taki, K.; Tamura, T.; Torii, S.; Tricomi, A.; Turner, W.C.. - ELETTRONICO. - (2011), pp. 272-280. (Intervento presentato al convegno 12th ICATPP Conference Villa Olmo, Como, Italy, 7 – 8 October 2010) [10.1142/9789814329033_0034].