Nuclear Physics Seminar

""LHCf: LHC Forward Experiment for Ultra High Energy Cosmic Ray Physics""

Presented by Hiroaki Menjo, KMI, Nagoya University, Japan

Tuesday, December 13, 2011, 11:00 am — Small Seminar Room, Bldg. 510

Currently, both particle and cosmic ray physicists are excited by the results from the high energy experiments, LHC and Pierre Auger Observatory(PAO). PAO provided several results for Ultra High Energy Cosmic Rays (UHECRs) but some of them have a large systematic uncertainty due to the uncertainty in the hadronic interaction model which is used in the MC simulation for air showers induced by UHECRs. LHC results can contribute to improve the hadronic interaction models and may solve the puzzles of UHECR physics. The LHCf experiment is one of the LHC forward experiments. The main goal of LHCf is to provide essential data for calibration of hadronic interaction model used in MC simulations for air showers. The LHCf calorimeter detectors cover the very forward region of LHC collisions, with pseudorapidity above 8.4. LHCf has already completed the operation in sqrt(s)=900GeV and 7TeV proton-proton collisions in 2010. I will give a short explanation about the connection between LHC results and UHECR observation and will present the recent LHCf results and future prospects.

Hosted by: Peter Steinberg

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