ICRC2015

Session

Parallel CR02 Hadr Int

30 Jul 2015, 11:00

World Forum

304. Status of the LHCf experiment

Yoshitaka Ito (Nagoya University (JP))

30/07/2015, 11:00

CR-EX

Oral contribution

Observations of UHECRs' by extensive air showers rely on understanding of hadron interactions at very high energies. Recent LHC experiments have provided useful hadron interaction data at the collision energy which is almost equivalent to 10**17 eV in the laboratory frame. Among them, the LHCf experiment is dedicated measurement of neutral particle productions at very forward region...

655. The TOTEM experiment at LHC for proton-proton cross section measurements.

Francesco Cafagna (Universita e INFN, Bari (IT))

30/07/2015, 11:15

CR-EX

Oral contribution

The precise knowledge of the proton-proton cross section is extremely important to model the development, in the atmosphere, of the showers induced by the interaction of ultra high energy cosmic rays. The TOTEM (TOTal cross section, Elastic scattering and diffraction dissociation Measurement at the LHC) experiment at LHC, has been designed to measure the total proton-proton...

1196. Study of high muon multiplicity cosmic ray events with ALICE at the CERN Large Hadron Collider

Mario Rodriguez Cahuantzi (Autonomous University of Puebla (BUAP, México)))

30/07/2015, 11:30

CR-EX

Oral contribution

ALICE is one of four large experiments at the CERN Large Hadron Collider. Located 52 meters underground with 28 meters of overburden rock,it has also been used to detect atmospheric muons produced by cosmic ray interactions in the upper atmosphere. We present the multiplicity distribution of these cosmic ray muon events and their comparison with Monte Carlo simulation. This analysis exploits...

779. Results from pion-carbon interactions measured by NA61/SHINE for better understanding of extensive air showers

Dr Alexander Edward Herve (Karlsruhe Institute of Technology)

30/07/2015, 11:45

CR-EX

Oral contribution

The interpretation of extensive air shower measurements, produced by ultra-high energy cosmic rays, relies on the correct modelling of the hadron-air interactions that occur during the shower development. The majority of hadronic particles is produced at equivalent beam energies below the TeV range. NA61/SHINE is a fixed target experiment using secondary beams produced at CERN using the SPS....

1108. The impact of a fixed-target experiment with LHC beam for astroparticle physics

Dr Ralf Matthias Ulrich (KIT - Karlsruhe Institute of Technology (DE))

30/07/2015, 12:00

CR-EX

Oral contribution

There are two main points, where the data from a fixed-target experiment with LHC beam will contribute unique information. Firstly, to better understand the inclusive flux of atmospheric neutrinos at very high, PeV, energies. Secondly, to the apparent over-abundance of GeV muons in ultra-high energy extensive air showers. To contribute towards answering these questions, the experimental...

803. Air Shower Development, pion interactions and modified EPOS Model

Dr Tanguy Pierog (KIT)

30/07/2015, 12:15

CR-EX

Oral contribution

In detailed air shower simulations, the uncertainty in the prediction of shower observable for different primary particles and energies is currently dominated by differences between hadronic interaction models. With the results of the first run of the LHC, the difference between post-LHC model predictions has been reduced at the same level than experimental uncertainties of cosmic ray...