Abstract
Precise understanding of hadronic interactions at very high energy is essentially important for observations of ultra high energy cosmic rays by extensive air showers. The LHCf experiment provides new data for very forward particle productions produced by LHC 7 TeV and 0.9 TeV p-p collisions. These data relevant toair showers development will improve current uncertainty in observation of ultra high energy cosmic rays. Recent LHCf data and future prospects are over-viewed.
Highlights
About 100 years ago, observation of cosmic rays was the main method to study elementary particles and their interactions
Precise understanding of hadronic interactions at very high energy is essentially important for observations of ultra high energy cosmic rays by extensive air showers
Very high energy interactions become important from the view point of implication of data from extensive air shower experiments to observe ultra high energy cosmic rays (UHECRs)
Summary
About 100 years ago, observation of cosmic rays was the main method to study elementary particles and their interactions. The LHCf experiment provides new data for very forward particle productions produced by LHC 7 TeV and 0.9 TeV p-p collisions. These data relevant to air showers development will improve current uncertainty in observation of ultra high energy cosmic rays.
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