Search for elongated spatial structures in hadronic shower cores with KASCADE

نویسندگان

  • A. Iwan
  • T. Antoni
  • W. D. Apel
  • F. Badea
  • K. Bekk
  • A. Bercuci
  • H. Blümer
  • F. Feßler
  • H. J. Gils
چکیده

In this analysis the structure of hadronic shower cores is investigated with the KASCADE calorimeter. The energy, position, and direction of incidence for individual hadrons above 50 GeV are measured. In parallel, the spatial structure is studied using the simulation program CORSIKA with the hadronic interaction model QGSJET. First results are presented for the showers with primary energies above 5 PeV. Elongated cores are observed more frequently than expected from random coincidence. This proves that KASCADE is sensitive to hadronic interaction producing elongated structures. Alignment can be found in both data sets measurements and simulation. No significant deviation between them or hints for new physics have been found so far.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Investigation of Geometrical Structures in the Hadronic Shower Core

The geometrical structure of high-energy hadrons in shower cores measured with the KASCADE calorimeter is analyzed. The angular correlation, especially the degree of alignment, is quantified by means of the commonly used parameter λ4. The λ4 distribution obtained by KASCADE is comparable to that derived by other experiments. The analysis shows that the observed λ4 distribution is not linked to ...

متن کامل

Test of high - energy interaction models using the hadronic core of

Using the large hadron calorimeter of the KASCADE experiment, hadronic cores of extensive air showers have been studied. The hadron lateral and energy distributions have been investigated in order to study the reliability of the shower simulation program CORSIKAwith respect to particle transport, decays, treatment of low-energy particles, etc. A good description of the data has been found at la...

متن کامل

ar X iv : a st ro - p h / 99 04 28 7 v 1 2 1 A pr 1 99 9 Test of high – energy interaction models using the hadronic core of EAS

Using the large hadron calorimeter of the KASCADE experiment, hadronic cores of extensive air showers have been studied. The hadron lateral and energy distributions have been investigated in order to study the reliability of the shower simulation program CORSIKA with respect to particle transport, decays, treatment of low–energy particles, etc. A good description of the data has been found at l...

متن کامل

30th International Cosmic Ray Conference

KASCADE-Grande is a multi detector setup for the investigation of extensive air showers in the 10 − 10 eV energy range. With the Grande array it is possible to reconstruct the shower core position, the arrival direction and the total number of charged particles in the shower. The Grande array measures in coincidence with the original KASCADE muon array consisting of 622 m shielded scintillators...

متن کامل

Confronting the EPOS-LHC model predictions on the charged particle and muon attenuation lengths of EAS with the measurements of the KASCADE-Grande observatory

KASCADE-Grande was an air-shower experiment designed to study cosmic rays between 1016 and 1018 eV. The instrument was located at the site of the Karlsruhe Institute of Technology, Germany at an altitude of 110m a.s.l. and covered an area of 0.5 km. KASCADE-Grande consisted of several detector systems dedicated to measure different components of the EAS generated by the primary cosmic rays, i.e...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2001