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., et al.. - ELETTRONICO. - (2011), pp. 272-280. (12th ICATPP Conference Villa Olmo, Como, Italy, 7 – 8 October 2010 ) [10.1142/9789814329033_0034].