sibyll: An event generator for simulation of high energy cosmic ray cascades

Fletcher, Robert Samuel; Gaisser, T. K.; Lipari, P.; Stanev, T.

doi:10.1103/physrevd.50.5710

Cited by 468 publications

(481 citation statements)

References 55 publications

Supporting

Mentioning

465

Contrasting

Unclassified

Order By: Relevance

“…The values of C and β for J = 4 and 8 are in very good agreement with those obtained by Stanev [2] with the SYBILL model of hadronic interactions [7] and by the simple, deterministic model of Matthews [8]. Furthermore, these results are in very good agreement with the experimental results reported by the Akeno group [9].…”

Section: Results and Conclusionsupporting

confidence: 82%

Simple hadronic cascade simulations

Sepúlveda¹,

Dib²

2007

Braz. J. Phys.

View full text Add to dashboard Cite

We obtain results for the average number of muons at sea level in a proton-initiated vertical atmospheric cascade using a simple model of hadronic interactions based on the Hillas splitting algorithm. We study the muon yield at sea level as a function of the proton primary energy, varying the parameters of the interaction model in order to see the behavior of our results. We find that our results are in agreement with experimental data and with those of more sophisticated simulation models for some particular values of the model parameters.

show abstract

Section: Results and Conclusionsupporting

confidence: 82%

Simple hadronic cascade simulations

Sepúlveda¹,

Dib²

2007

Braz. J. Phys.

View full text Add to dashboard Cite

show abstract

“…DPMJET 2.5 (Ranft 1995 and, NEXUS 2 (Drescher et al 2001), QGSJET 01, and SIBYLL 2.1 (Fletcher et al 1994, Engel et al 1999 -have been compared by Knapp et al (2003). At knee energies a spread of the models of about 50 g/cm 2 has been found for proton induced showers and 20 g/cm 2 for primary iron nuclei.…”

Section: Model Parameters and The Average Depth Of The Shower Maximummentioning

confidence: 99%

On total inelastic cross sections and the average depth of the maximum of extensive air showers

Hoerandel¹

2003

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

View full text Add to dashboard Cite

Abstract. The model dependence of the development of extensive air showers generated by high-energy cosmic-ray particles in the atmosphere is studied. The increase of proton-proton and proton-air inelastic cross-sections and values for the elasticity are varied in the hadronic interaction model QGSJET. Using the CORSIKA simulation program, the impact of these changes is investigated on air shower observables like the average depth of the shower maximum Xmax and the number of muons and electrons at ground level. Calculating the mean logarithmic mass from experimental Xmax values, it is found that a moderate logarithmic increase of the proton-proton inelastic cross-section from σ inel pp = 51 mb at E 0 = 10 6 GeV to σ inel pp = 64 mb at E 0 = 10 8 GeV and an elasticity, additionally increased by 10% to 15%, describes the data best. Using these parameters, the mean logarithmic mass ln A derived from Xmax measurements is compatible with the extrapolations of the results of direct measurements to high energies using the poly-gonato model.

show abstract

“…In MOCCA, an algorithmic hadron interaction simulator is used to reflect important features of the interactions (Hillas, 1997). Recently the SIBYLL interaction model (Fletcher et al, 1994), which is based on the idea that the increase in cross section is driven by the production of minijets, has been implemented within MOCCA.I nCOS-MOS, the QCD model with minijet production (Ding et al, 1984) is used. Within CORSIKA various models have been implemented.…”

Section: A Hadronic Interaction Primary Composition and Shower Devmentioning

confidence: 99%

Observations and implications of the ultrahigh-energy cosmic rays

2000

View full text Add to dashboard Cite

The authors define ''ultrahigh-energy cosmic rays'' (UHECRs) as those cosmic rays with energies above 10 18 eV. It had been anticipated that there would be a cutoff in the energy spectrum of primary cosmic rays around 6ϫ10 19 eV induced by the interaction of the particles with the 2.7-K primordial photons. However, recent experimental data have established that particles exist with energies greatly exceeding this. It follows that the sources of such particles are probably nearby, on a cosmological scale. However, although the trajectories of such energetic particles through the galactic and intergalactic magnetic fields may be nearly rectilinear, no astronomical sources have as yet been identified. This is the enigma of the highest-energy cosmic rays. The paper reviews the history of research in this energy regime and critically assesses the observational results on the energy spectrum, arrival directions, and composition of the primary cosmic rays based on observations made by six experiments. The detection methods currently available are described. Special techniques have been developed as particles of 10 20 eV or higher occur at a rate of only about 1 per km 2 per century. Errors in measurement are given particular attention. The authors also review the theoretical predictions for a number of candidate sources of cosmic rays beyond the predicted cutoff. Finally, the four major projects planned to address the question of the origin of UHECRs are briefly described. CONTENTS

show abstract

sibyll: An event generator for simulation of high energy cosmic ray cascades

Cited by 468 publications

References 55 publications

Simple hadronic cascade simulations

Simple hadronic cascade simulations

On total inelastic cross sections and the average depth of the maximum of extensive air showers

Observations and implications of the ultrahigh-energy cosmic rays

Contact Info

Product

Resources

About