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The KASCADE-Grande energy spectrum of cosmic rays and the role of hadronic interaction models
(ElsevierAmsterdam, 2014-05)
Previous results obtained by KASCADE-Grande using the QGSjetII-02 hadronic interaction model have shown that the energy spectrum of cosmic rays between '10 POT. 16' eV and '10 POT. 18' eV exhibits a significant hardening ...
Stability and clustering for lattice many-body quantum hamiltonians with multiparticle potentials
(SpringerNew York, 2015-11)
We analyze a quantum system of N identical spinless particles of mass m, in the
lattice Zd , given by a Hamiltonian HN = TN +VN , with kinetic energy TN ≥ 0 and potential
VN = VN,2 +VN,3 composed of attractive pair and ...
KASCADE-Grande measurements of energy spectra for elemental groups of cosmic rays
(Elsevier BVAmsterdam, 2013-07)
The KASCADE-Grande air shower experiment [1] consists of, among others, a large scintillator array for measurements of charged particles, Nch, and of an array of shielded scintillation counters used for muon counting, Nµ. ...
The spectrum of high-energy cosmic rays measured with KASCADE-Grande
(ELSEVIER SCIENCE BVAMSTERDAM, 2012)
The energy spectrum of cosmic rays between 10(16) eV and 10(18) eV, derived from measurements of the shower size (total number of charged particles) and the total muon number of extensive air showers by the KASCADE-Grande ...
Chiral corrections in hadron spectroscopy
(1999-12-01)
We show that the implementation of chiral symmetry in recent studies of the hadron spectrum in the context of the constituent quark model is inconsistent with chiral perturbation theory. In particular, we show that the ...
Ionization and double-excitations within the framework of the G-particle-hole hypervirial equation method
(John Wiley & Sons Inc, 2012-09)
Recently, through the use of one-electron excitation operators, the set of low-lying excited states of several electronic systems was obtained within the framework of the Hermitian Operator method combined with the ...
CENTAURUS A: THE EXTRAGALACTIC SOURCE OF COSMIC RAYS WITH ENERGIES ABOVE THE KNEE
(IOP PUBLISHING LTDBRISTOL, 2012)
The origin of cosmic rays at all energies is still uncertain. In this paper, we present and explore an astrophysical scenario to produce cosmic rays with energy ranging from below 10(15) to 3 x 10(20) eV. We show here that ...
Latest results from the KASCADE-Grande experiment
(Elsevier BVAmsterdam, 2014-04)
The KASCADE-Grande experiment operated at KIT from January 2004 to November 2012, measuring EAS generated by primary cosmic rays in the 1016–1018 eV energy range. The experiment detected, for each single event, with a high ...
Active galactic nuclei: sources for ultra high energy cosmic rays
(WORLD SCIENTIFIC PUBL CO PTE LTD, 2009)
Ultra high energy cosmic ray events presently show a spectrum, which we interpret here as galactic cosmic rays due to a starburst, in the radio galaxy Cen A which is pushed up in energy by the shock of a relativistic jet. ...
Luminescent properties of hybrid materials prepared by the polymeric precursor method
(2013-07-22)
Rare earth complexes (RE) can be incorporated in silica matrixes, originating organic/inorganic hybrid materials with good thermal stability and high rare earth emission lines. In this work, the hybrid material was obtained ...