Livni - public library of artificial air showers

What is Livni?

Russian word "livni" means "showers". Livni [1,2] is a publicly available database of artificial extensive air showers. All showers are calculated with CORSIKA [3] without THINNING option. QGSJET 01c [4], QGSJET II [5], GHEISHA [6] and EGS4 [7] models are used in simulations.

Why Livni?

Artificial showers, generated without thinning, are needed for many theoretical and experimental studies. However, calculation of such showers may be very time consuming, e.g. caclulation of one 10^18 eV proton induced shower may take several months on modern PC.

How to get access?

Shell access to the computer with a readonly access to data files may be granted to scientists or collaborations. C++ source code for CORSIKA datafile readout is also provided. To get an access, please contact author, Grigory Rubstov, by email: grisha@ms2.inr.ac.ru.

Data format

Showers in livni are stored in two formats:

  1. CORSIKA DATxxxxxx files - useful for existing applications working with CORSIKA data.
  2. MySQL database format - specially designed format to quickly access lists of individual particles at fixed ground location.

Note. Showers with codenames starting with "l" include particle information at 10 observation levels. For these showers particle list just below first interaction point is stored in DAT1xxxxx file. In the corresponding MySQL tables `lev` column is responsible for observation level with the following notation:

  1. first interaction
  2. 12000 m
  3. 9300 m
  4. 7400 m
  5. 5700 m
  6. 4400 m
  7. 3200 m
  8. 2100 m
  9. 1430 m
  10. 667 m
  11. 100 m

Up-to-date list of available showers:

Shower codename E prim, EeV Particle type Theta CORSIKA version Ecuts h,mu,e,gamma Size, Gb CORSIKA inputs
17-1 0.1 p 0 CORSIKA 6.2001 + QGSJET + GHEISHA 0.3 0.3 0.003 0.003 4.4 Inputs
17-2 0.1 p 0 CORSIKA 6.0311 + QGSJET + GHEISHA 0.3 0.3 0.003 0.003 7 Inputs
17-ta1..17-ta23 0.1 p 0 CORSIKA 6.5001 + QGSJET II + GHEISHA 0.3 0.05 0.0005 0.0005 23x9 Inputs
l17_0_1..l17_0_5 0.1 p 0 CORSIKA 6.900 + QGSJET II + FLUKA 0.3 0.05 0.0005 0.0005 62x5 Inputs
17-i30 0.1 p 30 CORSIKA 6.2001 + QGSJET + GHEISHA 0.3 0.3 0.003 0.003 1.5 Inputs
l17_30_1..l17_30_5 0.1 p 30 CORSIKA 6.900 + QGSJET II + FLUKA 0.3 0.05 0.0005 0.0005 61x5 Inputs
17-i45 0.1 p 45 CORSIKA 6.2001 + QGSJET + GHEISHA 0.3 0.3 0.003 0.003 0.25 Inputs
17-i45-2 0.1 p 45 CORSIKA 6.2001 + QGSJET + GHEISHA 0.3 0.3 0.003 0.003 0.35 Inputs
l17_45_1..l17_45_5 0.1 p 45 CORSIKA 6.900 + QGSJET II + FLUKA 0.3 0.05 0.0005 0.0005 48x5 Inputs
l17_60_1..l17_60_5 0.1 p 60 CORSIKA 6.900 + QGSJET II + FLUKA 0.3 0.05 0.0005 0.0005 38x5 Inputs
17-g1 0.1 gamma 0 CORISKA 6.2041 + QGSJET + GHEISHA 0.3 0.05 0.0005 0.0005 9.7 Inputs
17-g2 0.1 gamma 0 CORSIKA 6.5001 + QGSJET II + GHEISHA 0.3 0.05 0.0005 0.0005 12.6 Inputs
17-g30 0.1 gamma 30 CORSIKA 6.2001 + QGSJET + GHEISHA 0.3 0.3 0.003 0.003 5.9 Inputs
17-f1 0.1 Fe 0 CORSIKA 6.5001 + QGSJET II + GHEISHA 0.3 0.05 0.0005 0.0005 4.5 Inputs
17-f2 0.1 Fe 0 CORSIKA 6.5001 + QGSJET II + GHEISHA 0.3 0.05 0.0005 0.0005 4.3 Inputs
17-f3 0.1 Fe 0 CORSIKA 6.5001 + QGSJET II + GHEISHA 0.3 0.05 0.0005 0.0005 4.5 Inputs
lFe17_0_1..lFe17_0_5 0.1 Fe 0 CORSIKA 6.900 + QGSJET II + FLUKA 0.3 0.05 0.0005 0.0005 61x5 Inputs
lFe17_30_1..lFe17_30_5 0.1 Fe 30 CORSIKA 6.900 + QGSJET II + FLUKA 0.3 0.05 0.0005 0.0005 54x5 Inputs
lFe17_45_1..lFe17_45_5 0.1 Fe 45 CORSIKA 6.900 + QGSJET II + FLUKA 0.3 0.05 0.0005 0.0005 44x5 Inputs
lFe17_60_1..lFe17_60_5 0.1 Fe 60 CORSIKA 6.900 + QGSJET II + FLUKA 0.3 0.05 0.0005 0.0005 32x5 Inputs
17.5 0.316 p 0 CORSIKA 6.2001 + QGSJET + GHEISHA 0.3 0.3 0.003 0.003 17 Inputs
17.5i45 0.316 p 45 CORSIKA 6.2001 + QGSJET + GHEISHA 0.3 0.3 0.003 0.003 2.2 Inputs
18 1.0 p 0 CORSIKA 6.0311 + QGSJET + GHEISHA 0.3 0.3 0.003 0.003 67 Inputs
18-2 1.0 p 0 CORSIKA 6.2001 + QGSJET + GHEISHA 0.3 0.3 0.003 0.003 62 Inputs
18-3 1.0 p 0 CORISKA 6.2041 + QGSJET + GHEISHA 0.3 0.05 0.0005 0.0005 98 Inputs
18-4 1.0 p 0 CORSIKA 6.5001 + QGSJET II + GHEISHA 0.3 0.05 0.0005 0.0005 109 Inputs
18-5 1.0 p 0 CORSIKA 6.5001 + QGSJET II + GHEISHA 0.3 0.05 0.0005 0.0005 76 Inputs
18-taEp1..3 1.0 p 0 CORSIKA 6.611 + EPOS + FLUKA 2006.3b 0.3 0.05 0.0005 0.0005 100x3 Inputs
18i45 1.0 p 45 CORSIKA 6.2001 + QGSJET + GHEISHA 0.3 0.3 0.003 0.003 14 Inputs
l18_45_1..l18_45_3 1.0 p 45 CORSIKA 6.900 + QGSJET II + FLUKA 0.3 0.05 0.0005 0.0005 490x3 Inputs
18-taEFe1..3 1.0 Fe 0 CORSIKA 6.611 + EPOS + FLUKA 2006.3b 0.3 0.05 0.0005 0.0005 70x3 Inputs
19-g1 10 gamma 30 CORSIKA 6.735 + QGSJET II + GHEISHA 0.3 0.05 0.0005 0.001 29 (core cut) Inputs

Notice: CORSIKA 6.2001 has a bug in the treatment of the muon nuclear interactions which take place at energies above 10 TeV.

Acknowledgements

Work is supported by the Russian Foundation of Basic Research, grant 09-07-00388a. Livni is a registered database in Russian Federation.

References

  1. V. A. Kuzmin, G. I. Rubtsov, "No-thinning simulations of extensive air showers and small scale fluctuations at the ground level", JETP Lett. 85, 535 (2007) [arXiv:astro-ph/0702527].
  2. G. Rubtsov, "Small-scale structure of EAS", Talk given at the 3rd International Workshop on Ultra-high-energy cosmic rays and their sources, Moscow, May 16-18, 2006;
  3. D. Heck, G. Schatz, T. Thouw, J. Knapp and J. N. Capdevielle, "CORSIKA: A Monte Carlo code to simulate extensive air showers", FZKA-6019
  4. N. N. Kalmykov, S. S. Ostapchenko and A. I. Pavlov, "Quark-gluon string model and EAS simulation problems at ultra-high energies", Nucl. Phys. Proc. Suppl. 52B, 17 (1997).
  5. S. Ostapchenko, "QGSJET-II: Towards reliable description of very high energy hadronic interactions.", Nucl.Phys.Proc.Suppl. B151, 143(2006)
  6. H. Fesefeldt, PITHA 85/02.
  7. W. R. Nelson, H. Hirayama and D. W. O. Rogers, "The Egs4 Code System", SLAC-0265


(C) 2006-2010, G. Rubtsov, Department of Theoretical Physics, Institute for Nuclear Reseach of the Russian Academy of Sciences

Project supported by Russian Foundation of Basic Research and by Russian Federation Agency for Science and Innovations (ROSNAUKA).

Simulation performed on Cluster of Department of Th. Phys., INR.