Cosmic rays and high-energy interactions. Is there a necessity for a new phenomenon?

Capdevielle, J. N.; Gawin, J.; Grochalska, B.; Wdowczyk, J.

doi:10.1007/bf02507316

Cited by 4 publications

(3 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This may come again from the lateral distribution becoming flatter more rapidly than the reduction of the total size: the net result is that the densities (at 600 m) are 5-10% larger in the bin = 20 • -30 • than the vertical density when the atmospheric depth separating the array and the shower maximum becomes lower than three cascade units. Some systematic errors could also enter the position of the shower axis [15] as the relation ( 6) is constant in the central part (α is fixed to 1.2), with consequences on the estimator S 600 .…”

Section: The Attenuation Length For Density Estimatorsmentioning

confidence: 99%

The continuity of the primary cosmic ray spectra measured by classical and giant EAS arrays

Capdevielle

Cohen

2005

J. Phys. G: Nucl. Part. Phys.

View full text Add to dashboard Cite

The extrapolation of the original cosmic ray primary spectrum derived from the size spectrum measured in the Akeno classical EAS array coincides with the spectrum measured recently by the HiRes Stereo experiment. After revisiting the calibrations carried in the overlapping energy region around 1018 eV, we discuss the consequences of the different approaches in classical arrays and giant surface arrays. The data are obtained from the size spectrum registration in the Akeno experiment with a modest space grid of 30–100 m, instead of 1 km or more in giant arrays using density estimators in place of size and different absorption treatments for inclined cascades. While the analysis of those circumstances suggests a reduction of the energy converted from the estimators in giant surface arrays, the consistency of classical and fluorescence measurements gives more support to the GZK prediction.

show abstract

Section: The Attenuation Length For Density Estimatorsmentioning

confidence: 99%

The continuity of the primary cosmic ray spectra measured by classical and giant EAS arrays

Capdevielle

Cohen

2005

J. Phys. G: Nucl. Part. Phys.

View full text Add to dashboard Cite

show abstract

“…In the most popular (LUND) model developed by Anderson et al [8] it was assumed a stochastic emission of hadrons in the division of quark-gluon strings and energy invariance of fragmentation functions. This model has been adapted to the simulations of EAS with SIBYLL [9], and HDPM [10] generators. Secondary particle spectra in those generators obey Feynman scaling because there simplified LUND fragmentation functions are used which obey Feynman scaling, and quark structure functions 3 (3) asymptotically independent on interaction energy.…”

Section: Brief Review Of Hadronization Modelsmentioning

confidence: 99%

“…The effect of the shape of the x-spectra in the central region has been studied in three versions of DPM [10] (in which Feynman scaling is conserved in the fragmentation region). Only a version with rather strong rise of central rapidity cross section, dn dy = 0.08( s 1 GeV 2 ) 0.27 predicts a realistic rise of multiplicity.…”

Section: Verification Of Microdynamic Modelsmentioning

confidence: 99%