Cosmic Ray International Seminar 2015

Session

Interplay between LHC and UHECR physics

14 Sept 2015, 15:30

Castello Angioino, Gallipoli, ITALY

Conveners

Interplay between LHC and UHECR physics

• Ivan De Mitri (LE)

Interplay between LHC and UHECR physics

• Gabriella Cataldi (LE)

39. Ultra High energy Cosmic Rays Propagation and the Production of Secondary Cosmogenic Particles

Roberto Aloisio (GSSI)

14/09/2015, 15:30

Interplay between LHC and UHECR physics

The main experimental evidences of UHECR will be reviewed with a particular emphasis on the propagation of these extremely energetic particles and the subsequent production of secondary cosmogenic neutrinos and gamma rays. The cross analysis of the observations of different messengers is of paramount importance in the study of UHECR, principally to determine the physical conditions associated...

18. Hadronic physics with the Pierre Auger Observatory

Lorenzo Cazon (LIP)

14/09/2015, 16:00

Interplay between LHC and UHECR physics

Extensive air showers are the result of billions of particle reactions initiated by single cosmic rays at ultra-high energy. Their characteristics are sensitive both to the mass of the primary cosmic ray and to the details of hadronic interactions, including energies and kinematic regions beyond those tested by human-made accelerators. We report on how the Pierre Auger Observatory is...

41. Universality (and its limitations) in cosmic ray shower development

Paolo Lipari (ROMA1)

14/09/2015, 16:30

Interplay between LHC and UHECR physics

In this talk we review the concept of "universality" in the development of very high energy cosmic rays showers. The main result is that the distributions of photons and electrons in a shower have shapes that are essentially determined by the the stage of shower development (the shower age) independently from the energy and identity of the primary particle. The implications of...

35. Recent Results from NA61/SHINE

Dr Michael Unger (NYU&KIT)

15/09/2015, 11:30

Interplay between LHC and UHECR physics

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...

27. LHCf experiment: physics results

Massimo Bongi (FI)

15/09/2015, 12:00

Interplay between LHC and UHECR physics

LHCf is an experiment designed to study the very-forward emission of neutral particles produced in proton-proton and proton-nucleus collisions at the LHC. The detectors consists of a pair of electromagnetic sampling calorimeters installed on both sides of the ATLAS interaction point IP1 at a distance of 140 m, covering the pseudorapidity range from 8.6 to infinity. The experiment has...

5. Results and perspectives of forward physics in ATLAS

Benedetto Giacobbe (BO)

15/09/2015, 12:30

Interplay between LHC and UHECR physics

A review of the results of the ATLAS forward physics program will be given. This includes a complete set of proton-proton cross section measurements at $\sqrt{s}=7TeV$, diffractive physics studies using rapidity gaps, forward jet production and energy flow as a function of pseudorapidity. The ATLAS future perspectives will also be discussed, focused on the phase 1 upgrade project AFP,...

13. Stability of the electoroweak vacuum (Universe) and Cosmic Rays

Vincenzo Branchina (CT)

15/09/2015, 13:00

Interplay between LHC and UHECR physics

The analysis of the stability condition of the electroweak vacuum (and then of our Universe as a whole) is of the greatest importance for our understanding of physics beyond the Standard Model. The possibility that cosmic rays could destabilize the present state of our Universe, and that the cosmic ray induced vacuum decay could be faster than the spontaneous decay has been investigated...