Cosmic Physics: the High Energy Frontier

44 Lattice Field Theory : Scientific Goals and Computing Needs

One of the foremost goals of high-energy physics is to test the Standard Model of particle physics and to search for indications of new physics beyond. Towards this aim, the experimental high-energy physics program is pursuing three complementary approaches: experiments at the “energy frontier” try to directly produce non-Standard Model particles in collisions at large center-of-mass energies; ...

A study on the lateral distribution of Cherenkov light in extensive air showers

The dependence of the lateral distribution of Cherenkov light in simulated extensive air showers to the energy and the mass of the primary cosmic rays has been studied. It has been shown that a previous claim about mass independent proportionality of shower energy to the total Cherenkov photon number is not valid in energies below EEAS ~ 1014 eV. We have found that the core distance of the so c...

Detecting Cosmic Rays of the Highest Energies

The highest energies are defined, at a given time, by our detector capabilities. Thus the highest energies will be the just measured or soon to be measured energies. To-day, the frontier in cosmic rays reaches 10 eV. This represents a macroscopic energy, namely 16 J, transported by a microscopic object. For charged particles, the highest energy events seem to necessitate some New Physics, beyon...

Cosmic Rays at the Energy Frontier

Astrophysics at the Highest Energy Frontiers

I discuss recent advances being made in the physics and astrophysics of cosmic rays and cosmic γ-rays at the highest observed energies as well as the related physics and astrophysics of very high energy cosmic neutrinos. I also discuss the connections between these topics.