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1. LOPES 3D -- studies on the benefits of EAS-radio measurements with vertically aligned antennas

Author

Huber, D., Apel, W. D., Arteaga-Velazquez, J. C., Bähren, L., Bekk, K., Bertaina, M., Biermann, P. L., Blümer, J., Bozdog, H., Brancus, I. M., Cantoni, E., Chiavassa, A., Daumiller, K., de Souza, V., Di Pierro, F., Doll, P., Engel, R., Falcke, H., Fuchs, B., Fuhrmann, D., Gemmeke, H., Grupen, C., Haungs, A., Heck, D., Hörandel, J. R., Horneffer, A., Huege, T., Isar, P. G., Kampert, K. -H., Kang, D., Krömer, O., Kuijpers, J., Link, K., Łuczak, P., Ludwig, M., Mathes, H. J., Melissas, M., Morello, C., Oehlschläger, J., Palmieri, N., Pierog, T., Rautenberg, J., Rebel, H., Roth, M., Rühle, C., Saftoiu, A., Schieler, H., Schmidt, A., Schoo, S., Schröder, F. G., Sima, O., Toma, G., Trinchero, G. C., Weindl, A., Wochele, J., Zabierowski, J., and Zensus, J. A.

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), FOS: Physical sciences, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract

The LOPES experiment was a radio interferometer built at the existing air shower array KASCADE-Grande in Karlsruhe, Germany. The last configuration of LOPES was called LOPES 3D and consisted of ten tripole antennas. Each of these antennas consisted of three crossed dipoles east-west, north-south, and vertically aligned. With this, LOPES 3D had the unique possibility to study the benefits of measurements with vertically aligned antennas in the environment of the well understood and calibrated particle detector array KASCADE-Grande. The measurements with three spatially coincident antennas allows a redundant reconstruction of the electric field vector. Several methods to exploit the redundancy were developed and tested. Furthermore, for the first time in LOPES, the background noise could be studied polarization- and direction dependent. With LOPES 3D it could be demonstrated that radio detection reaches a higher efficiency for inclined showers when including measurements with vertically aligned antennas and that the vertical component gets more important for the measurement of inclined showers. In this contribution we discuss a weighting scheme for the best combination of three redundant reconstructed electric field vectors. Furthermore, we discuss the influence of these weighting schemes on the ability to reconstruct air showers using the radio method. We show an estimate of the radio efficiency for inclined showers with focus on the benefits of measurements with vertically aligned antennas and we present the direction dependent noise in the different polarizations., Comment: Submission to the proceedings of the ARENA2014 workshop, which unfortunately were never published; thus documented here for reference

Published
2022
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2. Estimations of the muon content of cosmic ray air showers between 10 PeV and 1 EeV from KASCADE-Grande data

Author

KASCADE-Grande Collaboration, Arteaga Velazquez, Juan Carlos, Apel, W. D., Arteaga-Velázquez, J. C., Bekk, K., Bertaina, M., Bluemer, J., Bozdog, H., Cantoni, E., Chiavassa, A., Cossavella, F., Daumiller, K., Souza, V. de, Di Pierro, F., Doll, P., Engel, R., Fuhrmann, D., Gherghel-Lascu, A., Gils, H. J., Glasstetter, R., Grupen, C., Haungs, A., Heck, D., Hoerandel, J. R., Huege, T., Kampert, K. H., Kang, D., Klages, H. O., Link, K., Luczak, P., Mathes, H. J., Mayer, H. J., Milke, J., Morello, C., Oehlschlaeger, J., Ostapchenko, S., Pierog, T., Rebel, H., Rivera-Rangel, D., Roth, M., Schieler, H., Schoo, S., Schroeder, F. G., Sima, O., Toma, G., Trinchero, G. C., Ulrich, H., Weindl, A., Wochele, J., and Zabierowski, J.

Subjects
Physics, ddc:530
Published
2021
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3. Search for Large-scale Anisotropy in the Arrival Direction of Cosmic Rays with KASCADE-Grande

Author

KASCADE-Grande Collaboration, Apel, W. D., Arteaga-Velázquez, J. C., Bekk, K., Bertaina, M., Blümer, J., Bonino, R., Bozdog, H., Brancus, I. M., Cantoni, E., Chiavassa, A., Cossavella, F., Daumiller, K., Souza, V. de, Di Pierro, F., Doll, P., Engel, R., Fuhrmann, D., Gherghel-Lascu, A., Gils, H. J., Glasstetter, R., Grupen, C., Haungs, A., Heck, D., Hörandel, J. R., Huege, T., Kampert, K.-H., Kang, D., Klages, H. O., Link, K., Łuczak, P., Mathes, H. J., Mayer, H. J., Milke, J., Mitrica, B., Morello, C., Oehlschläger, J., Ostapchenko, S., Pierog, T., Rebel, H., Roth, M., Schieler, H., Schoo, S., Schröder, F. G., Sima, O., Toma, G., Trinchero, G. C., Ulrich, H., Weindl, A., Wochele, J., and Zabierowski, J.

Subjects
Astroparticle physics, Physics, Scale (ratio), Astronomy, OBSERVATÓRIOS, Cosmic ray, Astronomy and Astrophysics, Astrophysics, Physik (inkl. Astronomie), astroparticle physics, cosmic rays, Space and Planetary Science, KASCADE, ddc:530, High Energy Physics, Anisotropy
Abstract

We present the results of the search for large-scale anisotropies in the arrival directions of cosmic rays performed with the KASCADE-Grande experiment at energies higher than 10 ₁₅ eV. To eliminate spurious anisotropies due to atmospheric or instrumental effects we apply the east-west method. We show, using the solar time distribution of the number of counts, that this technique allow us to remove correctly the count variations not associated to real anisotropies. By applying the east-west method we obtain the distribution of number of counts in intervals of 20 minutes of sidereal time. This distribution is then analyzed by searching for a dipole component; the significance of the amplitude of the first harmonic is 3.5σ, therefore, we derive its upper limit. The phase of the first harmonic is determined with an error of a few hours and is in agreement with the measurements obtained in the 10 ¹⁴ < E < 2 × 10 ¹⁵ eV energy range by the EAS-TOP, IceCube, and IceTop experiments. This supports the hypothesis of a change of the phase of the first harmonic at energies greater than ∼2 × 10 ¹⁴ eV.

Published
2019

4. Latest results from the KASCADE-Grande dataanalysis

Author

KASCADE-Grande Collaboration, Kang, Doghwa, Haungs, Andreas, Apel, W. D., Arteage-Velazquez, J. C., Bekk, K., Bertaina, M., Blümer, J., Bozdog, H., Cantoni, E., Chiavassa, A., Cossavella, F., Daumiller, K., Souza, V. de, Di Pierro, F., Doll, P., Engel, R., Fuhrmann, D., Gherghel-Lascu, A., Gils, H. J., Glasstetter, R., Grupen, C., Heck, D., Hörandel, J. R., Huege, T., Kampert, K.-H., Klages, H. O., Link, K., Łuczak, P., Mathes, H. J., Mayer, H. J., Milke, J., Morello, C., Oehlschläger, J., Ostapchenko, S., Pierog, T., Rebel, H., Rivera-Rangel, D., Roth, M., Schieler, H., Schoo, S., Schröder, F. G., Sima, O., Toma, G., Trinchero, G. C., Ulrich, H., Weindl, A., Wochele, J., and Zabierowski, J.

Subjects
Physics, ddc:530
Published
2019

5. Muon content in air showers between 10 PeV and 11EeV determined from measurements with2KASCADE-Grande

Author

KASCADE-Grande Collaboration, Arteaga-Velázquez, J. C., Rivera-Rangel, D., Apel, W. D., Bekk, K., Bertaina, M., Blümer, J., Bozdog, H., Cantoni, E., Chiavassa, A., Cossavella, F., Daumiller, K., Souza, V. de, Di Pierro, F., Doll, P., Engel, R., Fuhrmann, D., Gherghel-Lascu, A., Gils, H. J., Glasstetter, R., Grupen, C., Haungs, A., Heck, D., Hörandel, J. R., Huege, T., Kampert, K.-H., Kang, D., Klages, H. O., Link, K., Łuczak, P., Mathes, H. J., Mayer, H. J., Milke, J., Morello, C., Oehlschläger, J., Ostapchenko, S., Pierog, T., Rebel, H., Roth, M., Schieler, H., Schoo, S., Schröder, F. G., Sima, O., Toma, G., Trinchero, G. C., Ulrich, H., Wochele, J., and Zabierowski, J.

Subjects
Physics, ddc:530
Published
2019

6. Cosmic Ray Physics with the KASCADE-Grande Observatory

Author

Arteaga-Velázquez, J. C., Apel, W. D., Bekk, K., Bertaina, M., Blümer, J., Bozdog, H., Brancus, I. M., Cantoni, E., Chiavassa, A., Cossavella, F., Daumiller, K., Souza, V. de, Di Pierro, F., Doll, P., Engel, R., Fuhrmann, D., Gherghel-Lascu, A., Gils, H. J., Glasstetter, R., Grupen, C., Haungs, A., Heck, D., Hörandel, J. R., Huege, T., Kampert, K.-H., Kang, D., Klages, H. O., Link, K., Łuczak, P., Mathes, H. J., Mayer, H. J., Milke, J., Mitrica, B., Morello, C., Oehlschläger, J., Ostapchenko, S., Pierog, T., Rebel, H., Roth, M., Schieler, H., Schoo, S., Schröder, F. G., Sima, O., Toma, G., Trinchero, G. C., Ulrich, H., Weindl, A., Wochele, J., and Zabierowski, J.

Subjects
Physics, ddc:530
Published
2018
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7. Recent results from the KASCADE-Grande cosmic-ray experiment --- Test of hadronic interaction models with air-shower data

Author

Hörandel, J. R., Apel, W. D., Arteaga-Velazquez, J. C., Bekk, K., Bertaina, M., Blümer, J., Bozdog, H., Brancus, I. M., Cantoni, E., Chiavassa, A., Cossavella, F., Kai Daumiller, Souza, V., Di Pierro, F., Doll, P., Engel, R., Fuhrmann, D., Gherghel-Lascu, A., Gils, H. J., Glasstetter, R., Grupen, C., Haungs, A., Heck, D., Huber, D., Huege, T., Kampert, K. -H, Kang, D., Klages, H. O., Link, K., Luczak, P., Mathes, H. J., Mayer, H. J., Milke, J., Mitrica, B., Morello, C., Oehlschläger, J., Ostapchenko, S., Palmieri, N., Petcu, M., Pierog, T., Rebel, H., Roth, M., Schieler, H., Schoo, S., Schröder, F. G., Sima, O., Toma, G., Trinchero, G. C., Ulrich, H., Weindl, A., Wochele, J., and Zabierowski, J.

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, High Energy Physics::Experiment, Physik (inkl. Astronomie), Astrophysics - High Energy Astrophysical Phenomena
Abstract

Cosmic rays provide an unique approach to study hadronic interactions at high energies in the kinematic forward direction. The KASCADE air shower experiment was the first to conduct quantitative tests of hadronic interactions with air shower data. A brief overview is given on results from KASCADE and its extension KASCADE-Grande with respect to investigations of hadronic interactions and the properties of cosmic rays., presented at EDS Blois 2017, Prague, Czech Republic, June 26-30, 2017

Published
2017

8. DETECTION OF A CHANGE OF SLOPE IN THE SPECTRUM OF HEAVY MASS COSMIC RAYS PRIMARIES BY THE KASCADE-GRANDE EXPERIMENT

Author

Chiavassa, A., Apel, W. D., Arteaga-Velázquez, J. C., Bekk, K., Bertaina, M., Blümer, J., Bozdog, H., Brancus, I. M., Cantoni, E., Cossavella, F., Daumiller, K., Souza, V., Di Pierro, F., Doll, P., Engel, R., Engler, J., Finger, M., Fuchs, B., Fuhrmann, D., Garino, F., Gils, H. J., Glasstetter, R., Grupen, C., Haungs, A., Heck, D., Hörandel, J. R., Huber, D., Huege, T., Kampert, K. -H, Kang, D., Klages, H. O., Link, K., Łuczak, P., Ludwig, M., Mathes, H. J., Mayer, H. J., Melissas, M., Milke, J., Mitrica, B., Morello, C., Oehlschläger, J., Ostapchenko, S., Palmieri, N., Petcu, M., Pierog, T., Rebel, H., Roth, M., Schieler, H., Schoo, S., Schröder, F. G., Sima, O., Toma, G., Gian Carlo Trinchero, Ulrich, H., Weindl, A., Wochele, J., Wommer, M., and Zabierowski, J.

Subjects
lcsh:TA1-2040, Astrophysics::High Energy Astrophysical Phenomena, General Engineering, lcsh:Engineering (General). Civil engineering (General)
Abstract

KASCADE-Grande is an extensive air shower experiment devoted to the study of cosmic rays in the 1016 ÷ 1018 eV energy range. The array is composed by different detectors allowing independent measurements of the number of muons (Nμ) and charged particles (Nch) of extensive air showers (EAS). These two observables are then used to study the primary energy spectrum, separating the events in two samples, on the basis of the shower size ratio, corrected for attenuation in the atmosphere, lnNμ/ lnNch. The two samples represent the light and heavy mass groups of the primaries. In the studied energy range only the spectrum of heavy primaries shows a significant change of slope, the energy (estimated using the QGSJET II hadronic interaction model) of this feature is in agreeement with the expectations of a rigidity dependent knee feature.

Published
2013
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9. KASCADE-Grande: Composition studies in the view of the post-LHC hadronic interaction models

Author

Haungs A., Apel W.D., Arteaga-Velázquez J.C., Bekk K., Bertaina M., Blümer J., Bozdog H., Brancus I.M., Cantoni E., Chiavassa A., Cossavella F., Daumiller K., Souza V. de, Pierro F. Di, Doll P., Engel R., Fuhrmann D., Gherghel-Lascu A., Gils H.J., Glasstetter R., Grupen C., Heck D., Hörandel J.R., Huege T., Kampert K.-H., Kang D., Klages H.O., Link K., Łuczak P., Mathes H.J., Mayer H.J., Milke J., Mitrica B., Morello C., Oehlschläger J., Ostapchenko S., Pierog T., Rebel H., Roth M., Schieler H., Schoo S., Schröder F.G., Sima O., Toma G., Trinchero G.C., Ulrich H., Weindl A., Wochele J., and Zabierowski J.

Subjects
Astronomy, Astrophysics::High Energy Astrophysical Phenomena, Physics, QC1-999, High Energy Physics::Phenomenology, Astrophysics::Instrumentation and Methods for Astrophysics, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries)
Abstract

The KASCADE-Grande experiment has significantly contributed to the current knowledge about the energy spectrum and composition of cosmic rays for energies between the knee and the ankle. Meanwhile, post-LHC versions of the hadronic interaction models are available and used to interpret the entire data set of KASCADE-Grande. In addition, a new, combined analysis of both arrays, KASCADE and Grande, was developed significantly increasing the accuracy of the shower observables. First results of the new analysis with the entire data set of the KASCADE-Grande experiment will be the focus of this contribution.

Published
2017

10. KASCADE-Grande: Composition studies in the view of the post-LHC hadronic interaction models

Author

Haungs, A., Apel, W.D., Arteaga-Velázquez, J.C., Bekk, K., Bertaina, M., Blümer, J., Bozdog, H., Brancus, I.M., Cantoni, E., Chiavassa, A., Cossavella, F., Daumiller, K., Souza, V. De, Pierro, F. Di, Doll, P., Engel, R., Fuhrmann, Daniel, Gherghel-Lascu, A., Gils, H.J., Glasstetter, R., Grupen, C., Heck, D., Hörandel, J.R., Huege, T., Kampert, K.-H., Kang, D., Klages, H.O., Link, K., Łuczak, P., Mathes, H.J., Mayer, H.J., Milke, J., Mitrica, B., Morello, C., Oehlschläger, J., Ostapchenko, S., Pierog, T., Rebel, H., Roth, M., Schieler, H., Schoo, S., Schröder, F.G., Sima, O., Toma, G., Trinchero, G.C., Ulrich, H., Weindl, A., Wochele, J., and Zabierowski, J.

Subjects
Maschinenbau
Published
2017

11. Measurements of the muon content of EAS in KASCADE-Grande compared with SIBYLL 2.3 predictions

Author

KASCADE-Grande Collaboration, Arteaga-Velázquez, J. C., Rivera-Rangel, D., Apel, Wolfgang D., Bekk, K., Bertaina, Mario E., Blümer, Johannes, Bozdog, H., Brancus, Iliana M., Cantoni, Elena, Chiavassa, Andrea, Cossavella, Fabiana, Daumiller, Kai, De Souza, Vitor V., Di Pierro, F., Doll, P., Engel, Ralph, Fuhrmann, Daniel A., Gherghel-Lascu, A., Gils, H. J., Glasstetter, R., Grupen, Claus, Haungs, Andreas, Heck, Dieter, Hörandel, Jörg R., Huber, Daniel F., Huege, Tim, Kampert, Karl Heinz, Kang, D., Klages, Hans O., Link, Katrin, Łuczak, Pawel, Mathes, Hermann Josef, Mayer, Helmut J., Milke, J., Mitrica, Bogdan, Morello, Christian, Oehlschläger, Jürgen, Ostapchenko, Sergey S., Palmieri, N., Pierog, Tanguy, Rebel, Heinigerd, Roth, Markus, Schieler, Harald, Schoo, S., Schröder, Frank G., Sima, Octavian, Toma, Gabriel, Trinchero, Giancario C., Ulrich, Holger, Weindl, Andreas, Wochele, J., and Zabierowski, Janusz

Subjects
Physics, ddc:530
Published
2017
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12. KASCADE-Grande: Composition studies in the view of the post-LHC hadronic interaction models

Author

KASCADE-Grande Collaboration, Haungs, A., Apel, W. D., Arteaga-Velázquez, J. C., Bekk, K., Bertaina, M., Blümer, J., Bozdog, H., Brancus, I. M., Cantoni, E., Chiavassa, A., Cossavella, F., Daumiller, K., Souza, V. de, Pierro, F. Di, Doll, P., Engel, R., Fuhrmann, D., Gherghel-Lascu, A., Gils, H. J., Glasstetter, R., Grupen, C., Heck, D., Hörandel, J. R., Huege, T., Kampert, K.-H., Kang, D., Klages, H. O., Link, K., Łuczak, P., Mathes, H. J., Mayer, H. J., Milke, J., Mitrica, B., Morello, C., Oehlschläger, J., Ostapchenko, S., Pierog, T., Rebel, H., Roth, M., Schieler, H., Schoo, S., Schröder, F. G., Sima, O., Toma, G., Trinchero, G. C., Ulrich, H., Weindl, A., Wochele, J., Zabierowski, J., and Pattison, B.

Subjects
Physics, ddc:530
Published
2017

13. A new release of the KASCADE Cosmic Ray Data Centre (KCDC)

Author

KASCADE-Grande Collaboration, Kang, D., Wochele, J., Haungs, Andreas, Schoo, S., Wochele, D., Apel, Wolfgang D., Arteaga-Velázquez, J. C., Bekk, K., Bertaina, Mario E., Blümer, Johannes, Bozdog, H., Brancus, Iliana M., Cantoni, Elena, Chiavassa, Andrea, Cossavella, Fabiana, Daumiller, Kai, De Souza, Vitor V., Di Pierro, F., Doll, P., Engel, Ralph, Fuhrmann, Daniel A., Gherghel-Lascu, A., Gils, H. J., Glasstetter, R., Grupen, Claus, Heck, Dieter, Hörandel, Jörg R., Huber, Daniel F., Huege, Tim, Kampert, Karl Heinz, Klages, Hans O., Link, Katrin, Łuczak, Pawel, Mathes, Hermann Josef, Mayer, Helmut J., Milke, J. M., Mitrica, Bogdan, Morello, Christian, Oehlschläger, Jürgen, Ostapchenko, Sergey S., Palmieri, N., Pierog, Tanguy, Rebel, Heinigerd, Roth, Markus, Schieler, Harald, Schröder, Frank G., Sima, Octavian, Toma, Gabriel, Trinchero, Giancario C., Ulrich, Holger, Weindl, Andreas, and Zabierowski, Janusz

Subjects
Physics, ddc:530
Published
2017
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14. Latest results of KASCADE-Grande

Author

Haungs, A., Apel, W. D., Arteaga-Velázquez, J. C., Bekk, K., Bertaina, M., Blümer, J., Bozdog, H., Brancus, I. M., Cantoni, E., Chiavassa, A., Cossavella, F., Kai Daumiller, Souza, V., Di Pierro, F., Doll, P., Engel, R., Fuhrmann, D., Gherghel-Lascu, A., Gils, H. J., Glasstetter, R., Grupen, C., Heck, D., Hörandel, J. R., Huber, D., Huege, T., Kampert, K. -H, Kang, D., Klages, H. O., Link, K., Łuczak, P., Mathes, H. J., Mayer, H. J., Milke, J., Mitrica, B., Morello, C., Oehlschläger, J., Ostapchenko, S., Oyulmaz, K. Y., Palmieri, N., Pierog, T., Rebel, H., Roth, M., Schieler, H., Schoo, S., Schröder, F. G., Sima, O., Toma, G., Trinchero, G. C., Ulrich, H., Weindl, A., Wochele, J., and Zabierowski, J.

Subjects
Maschinenbau
Published
2017

15. Lateral distributions of EAS muons (Eμ > 800 MeV) measured with the KASCADE-Grande Muon Tracking Detector in the primary energy range 10 16- 10 17 eV

Author

Apel, W. D, Arteaga Velázquez, J. C., Bekk, K., Bertaina, Mario Edoardo, Blümer, J., Bozdog, H., Brancus, I. M., Cantoni, E., Chiavassa, Andrea, Cossavella, F., Daumiller, K., De Souza, V., Di Pierro, F., Doll, P., Engel, R., Engler, J., Fuchs, B., Fuhrmann, D., Gherghel Lascu, A., Gils, H. J., Glasstetter, R., Grupen, C., Haungs, A., Heck, D., Hörandel, J. R., Huber, D., Huege, T., Kampert, K. H., Kang, D., Klages, H. O., Link, K., Łuczak, P., Mathes, H. J., Mayer, H. J., Milke, J., Mitrica, B., Morello, C., Oehlschläger, J., Ostapchenko, S., Palmieri, N., Petcu, M., Pierog, T., Rebel, H., Roth, M., Schieler, H., Schoo, S., Schröder, F. G., Sima, O., Toma, G., Trinchero, G. C., Ulrich, H., Weindl, A., Wochele, J., and Zabierowski, J.

Subjects
Muon density, Cosmic rays, Detector, Extensive air showers, KASCADE-Grande, Lateral distributions, Muon, Tracking, Astronomy and Astrophysics
Published
2015

16. Lateral distributions of EAS muons (Eμ>800 MeV) measured with the KASCADE-Grande Muon Tracking Detector in the primary energy range 1016–1017 eV

Author

Apel, W. D., Arteaga-Velázquez, J. C., Bekk, K., Bertaina, M., Blümer, J., Bozdog, H., Brancus, I. M., Cantoni, E., Chiavassa, A., Cossavella, F., Daumiller, K., de Souza, V., Di Pierro, F., Doll, P., Engel, R., Engler, J., Fuchs, B., Fuhrmann, D., Gherghel-Lascu, A., Gils, H. J., Glasstetter, R., Grupen, C., Haungs, A., Heck, D., Hörandel, J. R., Huber, D., Huege, T., Kampert, K. -H., Kang, D., Klages, H. O., Link, K., Łuczak, P., Mathes, H. J., Mayer, H. J., Milke, J., Mitrica, B., Morello, C., Oehlschläger, J., Ostapchenko, S., Palmieri, N., Petcu, M., Pierog, T., Rebel, H., Roth, M., Schieler, H., Schoo, S., Schröder, F. G., Sima, O., Toma, G., TRINCHERO, GIAN CARLO, Ulrich, H., Weindl, A., Wochele, J., and Zabierowski, J.

Subjects
Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, Physics::Accelerator Physics, High Energy Physics::Experiment
Abstract

The KASCADE-Grande large area (128 m2) Muon Tracking Detector has been built with the aim to identify muons (Eμthr = 800 MeV) in Extensive Air Showers by track measurements under 18 r.l. shielding. This detector provides high-accuracy angular information (approx. 0.3°) for muons up to 700 m distance from the shower core. In this work we present the lateral density distributions of muons in EAS measured with the Muon Tracking Detector of the KASCADE-Grande experiment. The density is calculated by counting muon tracks in a muon-to-shower-axis distance range from 100 m to 610 m from showers with reconstructed energy of 1016–1017 eV and zenith angle θ

Published
2015

17. Investigation of the radio wavefront of air showers with LOPES measurements and CoREAS simulations (ARENA 2014)

Author

Schröder, F. G., Apel, W. D., Arteaga-Velazquez, J. C., Bähren, L., Bekk, K., Bertaina, M., Biermann, P. L., Blümer, J., Bozdog, H., Brancus, I. M., Cantoni, E., Chiavassa, A., Daumiller, K., Souza, V., Di Pierro, F., Doll, P., Engel, R., Falcke, H., Fuchs, B., Fuhrmann, D., Gemmeke, H., Grupen, C., Haungs, A., Heck, D., Hörandel, J. R., Horneffer, A., Huber, D., Huege, T., Isar, P. G., Kampert, K. -H, Kang, D., Krömer, O., Kuijpers, J., Link, K., Luczak, P., Ludwig, M., Mathes, H. J., Melissas, M., Morello, C., Oehlschläger, J., Palmieri, N., Pierog, T., Rautenberg, J., Rebel, H., Roth, M., Rühle, C., Saftoiu, A., Schieler, H., Schmidt, A., Schoo, S., Sima, O., Toma, G., Gian Carlo Trinchero, Weindl, A., Wochele, J., Zabierowski, J., and Zensus, J. A.

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), FOS: Physical sciences, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract

We investigated the radio wavefront of cosmic-ray air showers with LOPES measurements and CoREAS simulations: the wavefront is of approximately hyperbolic shape and its steepness is sensitive to the shower maximum. For this study we used 316 events with an energy above 0.1 EeV and zenith angles below $45^\circ$ measured by the LOPES experiment. LOPES was a digital radio interferometer consisting of up to 30 antennas on an area of approximately 200 m x 200 m at an altitude of 110 m above sea level. Triggered by KASCADE-Grande, LOPES measured the radio emission between 43 and 74 MHz, and our analysis might strictly hold only for such conditions. Moreover, we used CoREAS simulations made for each event, which show much clearer results than the measurements suffering from high background. A detailed description of our result is available in our recent paper published in JCAP09(2014)025. The present proceeding contains a summary and focuses on some additional aspects, e.g., the asymmetry of the wavefront: According to the CoREAS simulations the wavefront is slightly asymmetric, but on a much weaker level than the lateral distribution of the radio amplitude., Comment: Proceedings of ARENA 2014, Anapolis, USA

Published
2015
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18. Reconstructing energy and Xmax of cosmic ray air showers using the radio lateral distribution measured with LOPES

Author

Apel, W. D., Arteaga, J. C., Bähren, L., Bekk, K., Bertaina, M., Biermann, P. L., Blümer, J., Bozdog, H., Brancus, I. M., Chiavassa, A., Daumiller, K., de Souza, V., Di Pierro, F., Doll, P., Engel, R., Falcke, H., Fuchs, B., Fuhrmann, D., Gemmeke, H., Grupen, C., Haungs, A., Heck, D., Hörandel, J. R., Horneffer, A., Huber, D., Huege, T., Isar, P. G., Kampert, K. H., Kang, D., Krömer, O., Kuijpers, J., Link, K., Łuczak, P., Ludwig, M., Mathes, H. J., Melissas, M., Morello, C., Oehlschläger, J., Palmieri, N., Pierog, T., Rautenberg, J., Rebel, H., Roth, M., Rühle, C., Saftoiu, A., Schieler, H., Schmid, A., Schröder, F. G., Sima, O., Toma, G., Trinchero, G. C., Weindl, A., Wochele, J., Wommer, M., Zabierowski, J., and Zensus, J. A.

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), Physics, LOPES, FOS: Physical sciences, Cosmic ray, Digital radio, Computational physics, Interferometry, Distribution function, Air shower, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Instrumentation and Methods for Astrophysics (astro-ph.IM), Noise (radio), Energy (signal processing)
Abstract

The LOPES experiment, a digital radio interferometer located at KIT (Karlsruhe Institute of Technology), obtained remarkable results for the detection of radio emission from extensive air showers at MHz frequencies. Features of the radio lateral distribution function (LDF) measured by LOPES are explored in this work for a precise reconstruction of two fundamental air shower parameters: the primary energy and the shower Xmax. The method presented here has been developed on (REAS3-)simulations, and is applied to LOPES measurements. Despite the high human-made noise at the LOPES site, it is possible to reconstruct both the energy and Xmax for individual events. On the one hand, the energy resolution is promising and comparable to the one of the co-located KASCADE-Grande experiment. On the other hand, Xmax values are reconstructed with the LOPES measurements with a resolution of 90 g/cm2 . A precision on Xmax better than 30 g/cm2 is predicted and achievable in a region with a lower human-made noise level., 9 pages, 5 figures, Proceedings ARENA 2012

Published
2013

19. Test of hadronic interaction models with the KASCADE-Grande muon data

Author

Arteaga-Velázquez, J.C., Apel, W.D., Bekk, K., Bertaina, M., Blümer, J., Bozdog, H., Brancus, I.M., Cantoni, E., Chiavassa, A., Cossavella, F., Daumiller, K., De Souza, V., Di Pierro, F., Doll, P., Engel, R., Engler, J., Finger, M., Fuchs, B., Fuhrmann, D., Gils, H.J., Glasstetter, R., Grupen, C., Haungs, A., Heck, D., Hörandel, J.R., Huber, D., Huege, T., Kampert, K.-H., Kang, D., Klages, H.O., Link, K., Łuczak, P., Ludwig, M., Mathes, H.J., Mayer, H.J., Melissas, M., Milke, J., Mitrica, B., Morello, C., Oehlschläger, J., Ostapchenko, S., Palmieri, N., Petcu, M., Pierog, T., Rebel, H., Roth, M., Schieler, H., Schoo, S., Schröder, F.G., Sima, O., Toma, G., Trinchero, G.C., Ulrich, H., Weindl, A., Wochele, J., Wommer, M., and Zabierowski, J.

Subjects
Maschinenbau
Published
2013

20. Mass sensitivity in the radio lateral distribution function

Author

Apel, W. D., Arteaga, J. C., Bähren, L., Bekk, K., Bertaina, M., Biermann, P. L., Blümer, J., Bozdog, H., Brancus, I. M., Buchholz, P., Cantoni, E., Chiavassa, A., Daumiller, K., Souza, V., Di Pierro, F., Doll, P., Engel, R., Falcke, H., Finger, M., Fuchs, B., Fuhrmann, D., Gemmeke, H., Grupen, C., Haungs, A., Heck, D., Hörandel, J. R., Horneffer, A., Huber, D., Huege, T., Isar, P. G., Kampert, K. H., Kang, D., Krömer, O., Kuijpers, J., Link, K., Łuczak, P., Ludwig, M., Mathes, H. J., Melissas, M., Morello, C., Oehlschläger, J., Palmieri, N., Pierog, T., Rautenberg, J., Rebel, H., Roth, M., Rühle, C., Saftoiu, A., Schieler, H., Schmid, A., Schröder, F. G., Sima, O., Toma, G., Gian Carlo Trinchero, Weindl, A., Wochele, J., Wommer, M., Zabierowski, J., and Zensus, J. A.

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Astrophysics::Cosmology and Extragalactic Astrophysics, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract

Measuring the mass composition of ultra-high energy cosmic rays is one of the main tasks in the cosmic rays field. Here we are exploring the composition signature in the coherent electromagnetic emission from extensive air showers, detected in the MHz frequency range. One of the experiments that successfully detects radio events in the frequency band of 40-80 MHz is the LOPES experiment at KIT. It is a digital interferometric antenna array and has the important advantage of taking data in coincidence with the particle detector array KASCADE-Grande. A possible method to look at the composition signature in the radio data, predicted by simulations, concerns the radio lateral distribution function, since its slope is strongly correlated with Xmax. Recent comparison between REAS3 simulations and LOPES data showed a significantly improved agreement in the lateral distribution function and for this reason an analysis on a possible LOPES mass signature through the slope method is promising. Trying to reproduce a realistic case, proton and iron showers are simulated with REAS3 using the LOPES selection information as input parameters. The obtained radio lateral distribution slope is analyzed in detail. The lateral slope method to look at the composition signature in the radio data is shown here and a possible signature of mass composition in the LOPES data is discussed., Comment: 7 pages, 5 figures

Published
2013
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21. KASCADE-Grande measurements of energy spectra for elemental groups of cosmic rays

Author

Fuhrmann, Daniel, Apel, W. D., Arteaga-Velazquez, J. C., Bekk, K., Bertaina, M., Blümer, J., Bozdog, H., Brancus, I. M., Cantoni, E., Chiavassa, A., Cossavella, F., Curcio, C., Daumiller, K., Souza, V., Di Pierro, F., Doll, P., Engel, R., Engler, J., Fuchs, B., Gils, H. J., Glasstetter, R., Grupen, C., Haungs, A., Heck, D., Hörandel, J. R., Huber, D., Huege, T., Kampert, K. H., Kang, D., Klages, H. O., Link, K., Luczak, P., Ludwig, M., Mathes, H. J., Mayer, H. J., Melissas, M., Milke, J., Mitrica, B., Morello, C., Oehlschläger, J., Ostapchenko, S., Palmieri, N., Petcu, M., Tanguy Pierog, Rebel, H., Roth, M., Schieler, H., Schoo, S., Schröder, F. G., Sima, O., Toma, G., Trinchero, G. C., Ulrich, H., Weindl, A., Wochele, J., and Zabierowski, J.

Subjects
Physik (inkl. Astronomie)
Published
2013

22. The hlnAi study in the primary energy range 10¹⁶ eV - 10¹⁷ eV with the Muon Tracking Detector in the KASCADE-Grande experiment

Author

Łuczak, P., Apel, W.D., Arteaga-Velázquez, J.C., Bekk, K., Bertaina, M., Blümer, J., Bozdog, H., Brancus, I.M., Cantoni, E., Chiavassa, A., Cossavella, F., Curcio, C., Daumiller, K., de Souza, V., Di Pierro, F., Doll, P., Engel, R., Engler, J., Fuchs, B., Fuhrmann, D., Gils, H.J., Glasstetter, R., Grupen, C., Haungs, A., Heck, D., Hörandel, J.R., Huber, D., Huege, T., Kampert, K.H., Kang, D., Klages, H.O., Link, K., Ludwig, M., Mathes, H.J., Mayer, H.J., Melissas, M., Milke, J., Mitrica, B., Morello, C., Oehlschläger, J., Ostapchenko, S., Palmieri, N., Petcu, M., Pierog, T., Rebel, H., Roth, M., Schieler, H., Schoo, S., Schröder, F.G., Sima, O., Toma, G., Trinchero, G.C., Ulrich, H., Weindl, A., Wochele, J., and Zabierowski, J.

Subjects
Physik (inkl. Astronomie)
Published
2013

23. Test of hadronic interaction models with the KASCADE-Grande muon data

Author

Schieler H., Roth M., Rebel H., Pierog T., Petcu M., Ostapchenko S., Palmieri N., Oehlschläger J., Morello C., Mitrica B., Milke J., Melissas M., Mayer H.J., Mathes H.J., Ludwig M., Łuczak P., Link K., Klages H.O., Kang D., Kampert K-H., Huege T., Huber D., Hörandel J.R., Heck D., Haungs A., Grupen C., Glasstetter R., Gils H.J., Fuhrmann D., Fuchs B., Finger M., Engler J., Engel R., Doll P., Di Pierro F., de Souza V., Cossavella F., Daumiller K., Chiavassa A., Cantoni E., Brancus I.M., Blümer J., Bozdog H., Bertaina M., Bekk K., Apel W.D., Arteaga-Velázquez J.C., Schoo S., Schröder F. G., Sima O., Toma G., Trinchero G.C., Ulrich H., Weindl A., Wochele J., Wommer M., and Zabierowski J.

Subjects
Astrophysics::High Energy Astrophysical Phenomena, Physics, QC1-999, Astrophysics::Instrumentation and Methods for Astrophysics, High Energy Physics::Experiment
Abstract

KASCADE-Grande is an air-shower observatory devoted for the detection of cosmic rays with energies in the interval of 1014 – 1018 eV, where the Grande array is responsible for the higher energy range. The experiment comprises different detection systems which allow precise measurements of the charged, electron and muon numbers of extensive air-showers (EAS). These data is employed not only to reconstruct the properties of the primary cosmic-ray particle but also to test hadronic interaction models at high energies. In this contribution, predictions of the muon content of EAS from QGSJET II-2, SIBYLL 2.1 and EPOS 1.99 are confronted with the experimental measurements performed with the KASCADE-Grande experiment in order to test the validity of these hadronic models commonly used in EAS simulations.

Published
2013

24. Comparison of LOPES data and CoREAS simulations using a full detector simulation (ICRC2013)

Author

Link, K., Apel, W. D., Arteaga-Velázquez, J. C., Bähren, L., Bekk, K., Bertaina, M., Biermann, P. L., Blümer, J., Bozdog, H., Brancus, I. M., Cantoni, E., Chiavassa, A., Daumiller, K., Souza, V., Di Pierro, F., Doll, P., Engel, R., Falcke, H., Fuchs, B., Fuhrmann, D., Gemmeke, H., Grupen, C., Haungs, A., Heck, D., Hörandel, J. R., Horneffer, A., Huber, D., Huege, T., Isar, P. G., Kampert, K-H, Kang, D., Krömer, O., Kuijpers, J., Łuczak, P., Ludwig, M., Mathes, H. J., Melissas, M., Morello, C., Oehlschläger, J., Palmieri, N., Pierog, T., Rautenberg, J., Rebel, H., Roth, M., Rühle, C., Saftoiu, A., Schieler, H., Schmidt, A., Schröder, F. G., Sima, O., Toma, G., Gian Carlo Trinchero, Weindl, A., Wochele, J., Zabierowski, J., and Zensus, J. A.

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), FOS: Physical sciences, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract

The LOPES experiment at the Karlsruhe Institute of Technology, Germany, has been measuring radio emission of air showers for almost 10 years. For a better understanding of the emission process a detailed comparison of data with simulations is necessary. This is possible using a newly developed detector simulation including all LOPES detector components. After propagating a simulated event through this full detector simulation a standard LOPES like event file is written. LOPES data and CoREAS simulations can then be treated equally and the same analysis software can be applied to both. This gives the opportunity to compare data and simulations directly. Furthermore, the standard analysis software can be used with simulations which provide the possibility to check the accuracy regarding reconstruction of air shower parameters. We point out the advantages and present first results using such a full LOPES detector simulation. A comparison of LOPES data and the Monte Carlo code CoREAS based on an analysis using this detector simulation is shown., Comment: 4 pages, presented at the International Cosmic Ray Conference, Rio de Janeiro, 2013, paper ID 0844

Published
2013
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25. Energy spectra of KASCADE-Grande based on shower size measurements and different hadronic interaction models

Author

Kang, D., Apel, W. D., Arteaga-Velazquez, J. C., Bekk, K., Bertaina, M., Bluemer, J., Bozdog, H., Brancus, I. M., Cantoni, E., Chiavassa, A., Cossavella, F., Curcio, C., Daumiller, K., de Souza, V., Di Pierro, F., Doll, P., Engel, R., Engler, J., Fuchs, B., Fuhrmann, D., Gils, H. J., Glasstetter, R., Grupen, C., Haungs, A., Heck, D., Hoerandel, J. R., Huber, D., Huege, T., Kampert, K. -H., Klages, H. O., Link, K., Luczak, P., Ludwig, M., Mathes, H. J., Mayer, H. J., Melissas, M., Milke, J., Mitrica, B., Morello, C., Oehlschlaeger, J., Ostapchenko, S., Palmieri, N., Petcu, M., Pierog, T., Rebel, H., Roth, M., Schieler, H., Schoo, S., Schroeder, F. G., Sima, O., Toma, G., Trinchero, G. C., Ulrich, H., Weindl, A., Wochele, D., Wochele, J., and Collaboration, J. Zabierowski - KASCADE-Grande

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Astrophysics - High Energy Astrophysical Phenomena
Abstract

KASCADE-Grande is dedicated for investigations of cosmic-ray air showers in the primary energy range from 10 PeV to 1 EeV. The multi-detector system allows us to reconstruct charged particles, electron and muon numbers for individual air showers with high accuracies. Based on the shower size ($N_{ch}$) spectra of the charged particle component, the all-particle energy spectrum of cosmic rays is reconstructed, where attenuation effects in the atmosphere are corrected by applying the constant intensity cut method. The energy calibration is performed by using CORSIKA simulations with high-energy interaction models QGSJET-II-2, QGSJET-II-4, EPOS 1.99 and SIBYLL 2.1, where FLUKA has been used as low-energy interaction model for all cases. In the different hadronic models, different abundances for shower particles are predicted. Such model differences in the observables will be compared and discussed in this contribution. Furthermore, by using data with increasing statistics, the updated energy spectra by means of different interaction models will be presented., Comment: 4 pages, paper presented at the International Cosmic Ray Conference, Rio De Janeiro, 2013, paper ID 0521

Published
2013
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26. Cosmic Ray Measurements with LOPES: Status and Recent Results (ARENA 2012)

Author

Schröder, F. G., Apel, W. D., Arteaga, J. C., Bähren, L., Bekk, K., Bertaina, M., Biermann, P. L., Blümer, J., Bozdog, H., Brancus, I. M., Chiavassa, A., Daumiller, K., de Souza, V., Di Pierro, F., Doll, P., Engel, R., Falcke, H., Fuchs, B., Fuhrmann, D., Gemmeke, H., Grupen, C., Haungs, A., Heck, D., Hörandel, J. R., Horneffer, A., Huber, D., Huege, T., Isar, P. G., Kampert, K. -H., Kang, D., Krömer, O., Kuijpers, J., Link, K., Luczak, P., Ludwig, M., Mathes, H. J., Melissas, M., Morello, C., Oehlschläger, J., Palmieri, N., Pierog, T., Rautenberg, J., Rebel, H., Roth, M., Rühle, C., Saftoiu, A., Schieler, H., Schmidt, A., Sima, O., Toma, G., Trinchero, G. C., Weindl, A., Wochele, J., Zabierowski, J., and Zensus, J. A.

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), FOS: Physical sciences, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract

LOPES is a digital antenna array at the Karlsruhe Institute of Technology, Germany, for cosmic-ray air-shower measurements. Triggered by the co-located KASCADE-Grande air-shower array, LOPES detects the radio emission of air showers via digital radio interferometry. We summarize the status of LOPES and recent results. In particular, we present an update on the reconstruction of the primary-particle properties based on almost 500 events above 100 PeV. With LOPES, the arrival direction can be reconstructed with a precision of at least 0.65{\deg}, and the energy with a precision of at least 20 %, which, however, does not include systematic uncertainties on the absolute energy scale. For many particle and astrophysics questions the reconstruction of the atmospheric depth of the shower maximum, Xmax, is important, since it yields information on the type of the primary particle and its interaction with the atmosphere. Recently, we found experimental evidence that the slope of the radio lateral distribution is indeed sensitive to the longitudinal development of the air shower, but unfortunately, the Xmax precision at LOPES is limited by the high level of anthropogenic radio background. Nevertheless, the developed methods can be transferred to next generation experiments with lower background, which should provide an Xmax precision competitive to other detection technologies., Comment: The following article has been accepted by AIP Conference Proceedings. Proceedings of ARENA 2012, Erlangen, Germany; to appear on http://proceedings.aip.org/

Published
2013
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27. The study in the primary energy range 10^{16} - 10^{17} eV with the Muon Tracking Detector in the KASCADE-Grande experiment

Author

��uczak, P., Apel, W. D., Arteaga-Vel��zquez, J. C., Bekk, K., Bertaina, M., Bl��mer, J., Bozdog, H., Brancus, I. M., Cantoni, E., Chiavassa, A., Cossavella, F., Curcio, C., Daumiller, K., de Souza, V., Di Pierro, F., Doll, P., Engel, R., Engler, J., Fuchs, B., Fuhrmann, D., Gils, H. J., Glasstetter, R., Grupen, C., Haungs, A., Heck, D., H��randel, J. R., Huber, D., Huege, T., Kampert, K. -H., Kang, D., Klages, H. O., Link, K., Ludwig, M., Mathes, H. J., Mayer, H. J., Melissas, M., Milke, J., Mitrica, B., Morello, C., Oehlschl��ger, J., Ostapchenko, S., Palmieri, N., Petcu, M., Pierog, T., Rebel, H., Roth, M., Schieler, H., Schoo, S., Schr��der, F. G., Sima, O., Toma, G., Trinchero, G. C., Ulrich, H., Weindl, A., Wochele, J., and Zabierowski, J.

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), Astrophysics::High Energy Astrophysical Phenomena, FOS: Physical sciences, High Energy Physics::Experiment, Nuclear Experiment
Abstract

The KASCADE-Grande Muon Tracking Detector enables with high accuracy the measurement of directions of EAS muons with energy above 0.8 GeV and up to 700 m distance from the shower centre. Reconstructed muon tracks are used to investigate muon pseudorapidity (eta) distributions. These distributions are nearly identical to the pseudorapidity distributions of their parent mesons produced in hadronic interactions. Comparison of the eta distributions from measured and simulated showers can be used to test the quality of the high energy hadronic interaction models. In this context a comparison of the QGSJet-II-2 and QGSJet-II-4 model will be shown. The pseudorapidity distributions reflect the longitudinal development of EAS and, as such, are sensitive to the mass of the cosmic rays primary particles. With various parameters of the eta distribution, obtained from the MTD data, it is possible to calculate the mean logarithmic mass of CRs. The results of the analysis in the primary energy range 10^{16} eV - 10^{17} eV with the 1st quartile (Q1) of eta distribution will be presented., 4 pages, paper presented at the International Cosmic Ray Conference, Rio De Janeiro, 2013, paper ID 0528

Published
2013
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28. LOPES 3D reconfiguration and first measurements

Author

Huber, D., Apel, W. D., Arteaga, J. C., Bähren, L., Bekk, K., Bertaina, M., Biermann, P. L., Blümer, J., Bozdog, H., Brancus, I. M., Buchholz, P., Cantoni, E., Chiavassa, A., Daumiller, K., Souza, V., Di Pierro, F., Doll, P., Engel, R., Falcke, H., Finger, M., Fuchs, B., Fuhrmann, D., Gemmeke, H., Grupen, C., Haungs, A., Heck, D., Hörandel, J. R., Horneffer, A., Huege, T., Isar, P. G., Kampert, K. -H, Kang, D., Krömer, O., Kuijpers, J., Link, K., Luczak, P., Ludwig, M., Mathes, H. J., Melissas, M., Morello, C., Oehlschläger, J., Palmieri, N., Pierog, T., Rautenberg, J., Rebel, H., Roth, M., Rühle, C., Saftoiu, A., Schieler, H., Schmidt, A., Schröder, F. G., Sima, O., Toma, G., Gian Carlo Trinchero, Weindl, A., Wochele, J., Wommer, M., Zabierowski, J., and Zensus, J. A.

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract

The Radio detection technique of high-energy cosmic rays is based on the radio signal emitted by the charged particles in an air shower due to their deflection in the Earth's magnetic field. The LOPES experiment at Karlsruhe Institute of Technology, Germany with its simple dipoles made major contributions to the revival of this technique. LOPES is working in the frequency range from 40 to 80 MHz and was reconfigured several times to improve and further develop the radio detection technique. In the current setup LOPES consists of 10 tripole antennas which measure the complete electric field vector of the radio emission from cosmic rays. LOPES is the first experiment measuring all three vectorial components at once and thereby gaining the full information about the electric field vector and not only a two-dimensional projection. Such a setup including also measurements of the vertical electric field component is expected to increase the sensitivity to inclined showers and help to advance the understanding of the emission mechanism. We present the reconfiguration and calibration procedure of LOPES 3D and discuss first measurements., Comment: Proceedings

Published
2013
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29. Study of the muon content of very high-energy EAS measured with the KASCADE-Grande observatory

Author

Arteaga-Velazquez, J. C., Apel, W. D., Bekk, K., Bertaina, M., Bluemer, J., Bozdog, H., Brancus, I. M., Cantoni, E., Chiavassa, A., Cossavella, F., Curcio, C., Daumiller, K., Souza, V., Di Pierro, F., Doll, P., Engel, R., Engler, J., Fuchs, B., Fuhrmann, D., Gils, H. J., Glasstetter, R., Grupen, C., Haungs, A., Heck, D., Hoerandel, J. R., Huber, D., Huege, T., Kampert, K. -H, Kang, D., Klages, H. O., Link, K., Luczak, P., Ludwig, M., Mathes, H. J., Mayer, H. J., Melissas, M., Milke, J., Mitrica, B., Morello, C., Oehlschlaeger, J., Ostapchenko, S., Palmieri, N., Petcu, M., Tanguy Pierog, Rebel, H., Roth, M., Schieler, H., Schoo, S., Schroeder, F. G., Sima, O., Toma, G., Trinchero, G. C., Ulrich, H., Weindl, A., Wochele, D., Wochele, J., and Zabierowski, J.

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, High Energy Physics::Experiment, Astrophysics - High Energy Astrophysical Phenomena
Abstract

The KASCADE-Grande detector is an air-shower array devoted to the study of primary cosmic rays with very high-energies (E = 10^{16} - 10^{18} eV). The instrument is composed of different particle detector systems suitable for the detailed study of the properties of Extensive Air Showers (EAS) developed by cosmic rays in the atmosphere. Among the EAS observables studied with the detector, the charged number of particles, the muon content (at different energy thresholds), and the number of electrons are found. By comparing the measurements of these air-shower parameters with the expectations from MC simulations, different hadronic interaction models can be tested at the high-energy regime with the KASCADE-Grande experiment. In this work, the results of a study on the evolution of the muon content of EAS with zenith angle, performed with the KASCADE-Grande instrument, is presented. Measurements are compared with predictions from MC simulations based on the QGSJET II, QGSJET II-04, SIBYLL 2.1 and EPOS 1.99 hadronic interaction models. A mismatch between experiment and simulations is observed. A similar problem is found for the evolution of the lateral distribution function of muons in the atmosphere., Comment: 4 pages, paper presented at the International Cosmic Ray Conference, Rio De Janeiro, 2013, paper ID 772

Published
2013
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30. The energy-spectrum of light primaries in the range from 10¹⁶.⁶ to 10¹⁸.² eV

Author

Schoo, S., Apel, W.D., Arteaga-Velázquez, J.C., Bekk, K., Bertaina, M., Blümer, J., Bozdog, H., Brancus, I.M., Cantoni, E., Chiavassa, A., Cossavella, F., Curcio, C., Daumiller, K., Souza, V.D.E., Pierro, F.D.I., Doll, P., Engel, R., Engler, J., Fuchs, B., Fuhrmann, D., Gils, H.J., Glasstetter, R., Grupen, C., Haungs, A., Heck, D., Hörandel, J.R., Huber, D., Huege, T., Kampert, K.-H., Kang, D., Klages, H.O., Link, K., Łuczak, P., Ludwig, M., Mathes, H.J., Mayer, H.J., Melissas, M., Milke, J., Mitrica, B., Morello, C., Oehlschläger, J., Ostapchenko, S., Palmieri, N., Petcu, M., Pierog, T., Rebel, H., Roth, M., Schieler, H., Schröder, F.G., Sima, O., Toma, G., Trinchero, G.C., Ulrich, H., Weindl, A., Wochele, J., and Zabierowski, J.

Subjects
Physik (inkl. Astronomie)
Published
2013

31. Kneelike structure in the spectrum of the heavy component of cosmic rays observed with KASCADE-Grande

Author

Collaboration, The KASCADE-Grande, Apel, W. D., Arteaga-Velazquez, J. C., Bekk, K., Bertaina, M., Bluemer, J., Bozdog, H., Brancus, I. M., Buchholz, P., Cantoni3, E., Chiavassa, A., Cossavella, F., Daumiller, K., de Souza, V., Di Pierro, F., Doll, P., Engel, R., Engler, J., Finger, M., Fuhrmann, D., Ghia, P. L., Gils, H. J., Glasstetter, R., Grupen, C., Haungs, A., Heck, D., Hoerandel, J. R., Huber, D., Huege, T., Isar, P. G., Kampert, K. -H., Kang, D., Klages, H. O., Link, K., Luczak, P., Ludwig, M., Mathes, H. J., Mayer, H. J., Melissas, M., Milke, J., Mitrica, B., Morello, C., Navarra, G., Oehlschlaeger, J., Ostapchenko, S., Over, S., Palmieri, N., Petcu, M., Pierog, T., Rebel, H., Roth, M., Schieler, H., Schroeder, F. G., Sima, O., Toma, G., Trinchero, G. C., Ulrich, H., Weindl, A., Wochele, J., Wommer, M., and Zabierowski, J.

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), Physics, Range (particle radiation), Muon, Component (thermodynamics), Astronomy, Astrophysics::High Energy Astrophysical Phenomena, Spectrum (functional analysis), FOS: Physical sciences, General Physics and Astronomy, Cosmic ray, Observable, Astrophysics, ENERGIA, Charged particle, KASCADE, Astrophysics - High Energy Astrophysical Phenomena, GeneralLiterature_REFERENCE(e.g.,dictionaries,encyclopedias,glossaries)
Abstract

We report the observation of a steepening in the cosmic ray energy spectrum of heavy primary particles at about $8 \times 10^{16}$ eV. This structure is also seen in the all-particle energy spectrum, but is less significant. Whereas the `knee' of the cosmic ray spectrum at $3-5 \times 10^{15}$ eV was assigned to light primary masses by the KASCADE experiment, the new structure found by the KASCADE-Grande experiment is caused by heavy primaries. The result is obtained by independent measurements of the charged particle and muon components of the secondary particles of extensive air showers in the primary energy range of $10^{16}$ to $10^{18}$ eV. The data are analyzed on a single-event basis taking into account also the correlation of the two observables., 5 pages, 5 figures, accepted by PRL, published October, 7th, 2011

Published
2011

32. Sensitivity of KASCADE-Grande data to hadronic interaction models

Author

Kang, D., Apel, W. D., Arteaga-Velázquez, J. C., Bekk, K., Bertaina, M., Blümer, J., Bozdog, H., Brancus, I. M., Buchholz, P., Cantoni, E., Chiavassa, A., Cossavella, F., Daumiller, K., Souza, V., Di Pierro, F., Doll, P., Engel, R., Engler, J., Finger, M., Fuhrmann, D., Ghia, P. L., Gils, H. J., Glasstetter, R., Grupen, C., Haungs, A., Heck, D., Hörandel, J. R., Huege, T., Isar, P. G., Kampert, K. -H, Kickelbick, D., Klages, H. O., Link, K., Luczak, P., Ludwig, M., Mathes, H. J., Mayer, H. J., Melissas, M., Milke, J., Mitrica, B., Morello, C., Navarra, G., Nehls, S., Oehlschläger, J., Ostapchenko, S., Over, S., Palmieria, N., Petcu, M., Pierog, T., Rebel, H., Roth, M., Schieler, H., Schröder, F. G., Sima, O., Toma, G., Gian Carlo Trinchero, Ulrich, H., Weindl, A., Wochele, J., Wommer, M., and Zabierowski, J.

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, High Energy Physics::Experiment, Astrophysics - High Energy Astrophysical Phenomena
Abstract

KASCADE-Grande is a large detector array dedicated for studies of high-energy cosmic rays in the primary energy range from 100 TeV to 1 EeV. The multi-detector concept of the experimental set-up offers the possibility to measure simultaneously various observables related to the electromagnetic, muonic, and hadronic air shower components. The experimental data are compared to predictions of CORSIKA simulations using high-energy hadronic interaction models (e.g. QGSJET or EPOS), as well as low-energy interaction models (e.g. FLUKA or GHEISHA). This contribution will summarize the results of such investigations. In particular, the validity of the new EPOS version 1.99 for EAS with energy around 100 PeV will be discussed., Comment: Talk given at XVI International Symposium on Very High Energy Cosmic Ray Interactions ISVHECRI 2010, Batavia, IL, USA (28 June 2 July 2010). 4 pages, 4 figures

Published
2010
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33. The KASCADE-Grande experiment: measurements of the all-particle energy spectrum of cosmic rays

Author

Arteaga-Velázquez, J. C., Apel, W. D., Bekk, K., Bertaina, M., Blümer, J., Bozdog, H., Brancus, I. M., Buchholz, P., Cantoni, E., Chiavassa, A., Cossavella, F., Daumiller, K., Souza, V., Di Pierro, F., Doll, P., Engel, R., Engler, J., Finger, M., Fuhrmann, D., Ghia, P. L., Gils, H. J., Glasstetter, R., Grupen, C., Haungs, A., Heck, D., Hörandel, J. R., Huege, T., Isar, P. G., Kampert, K. -H, Kickelbick, D., Klages, H. O., Link, K., Luczak, P., Ludwig, M., Mathes, H. J., Mayer, H. J., Melissas, M., Milke, J., Mitrica, B., Morello, C., Navarra, G., Nehls, S., Oehlschläger, J., Ostapchenko, S., Over, S., Palmieri, N., Petcu, M., Pierog, T., Rebel, H., Roth, M., Schieler, H., Schröder, F., Sima, O., Toma, G., Gian Carlo Trinchero, Ulrich, H., Weindl, A., Wochele, J., Wommer, M., and Zabierowski, J.

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), FOS: Physical sciences, Astrophysics - High Energy Astrophysical Phenomena
Abstract

The all-particle energy spectrum as measured by the KASCADE-Grande experiment for E = 10^{16} - 10^{18} eV is presented within the framework of the QGSJET II/FLUKA hadronic interaction models. Three different methods were applied based on the muon size and the total number of charged particles individually and in combination. From the study it is found that the spectrum cannot be completely described by a smooth power law due to the presence of characteristic features., Comment: Invited talk given at XVI International Symposium on Very High Energy Cosmic Ray Interactions ISVHECRI 2010, Batavia, IL, USA (28 June 2 July 2010). 6 pages, 8 figures

Published
2010
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34. Hadronic interactions and EAS muon pseudorapidities investigated with the Muon Tracking Detector in KASCADE-Grande

Author

Zabierowski, J., Apel, W. D., Arteaga, J. C., Badea, F., Bekk, K., Bertaina, Mario Edoardo, Blumer, H., Bozdog, H., Brancus, I. M., Bruggemann, M., Buch, Holz, Cantoni, Elena Carla, Chiavassa, Andrea, Cossavella, F., Daumiller, K., de So uza, DI PIERRO, Federico, Doll, P., Engel, R., Engler, J., Finger, M., Fuhrm, Ann, Ghia, D., P. L., Gils, H. J., Glasstetter, Grupen, R., Haungs, C., Heck, A., Horandel, D., J. R., Huege, Isar, T., P. G., Kampert, K. H., Kang, Kickelbick, D., Klages, D., H. O., Kolotaev, Luczak, Y., Mathes, P., H. J., Ayer, Mm, H. J., Milke, Mitrica, J., Morello, B., Navarra, G., Nehls, S., ehlschl辰ger, O., Ostapchenko, J., Petcu, S., Pierog, M., Rebel, T., Roth, H., Schieler, M., Schr旦der, H., Sima, F., Stumpert, O., Toma, M., Trinc, Hero, G. C., Ulrich, Van, Buren, Walkowiak, J., Weindl, W., Wochele, A., and Wommer, J.

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Muon, Meson, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Hadron, Mean value, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Tracking (particle physics), Atomic and Molecular Physics, and Optics, Nuclear physics, KASCADE, Pseudorapidity, High Energy Physics::Experiment, Nuclear Experiment
Abstract

The Muon Tracking Detector in the KASCADE-Grande EAS experiment allows the precise measurement of shower muon directions up to 700 m distance from the shower center. This directional information is used to study the pseudorapidity of muons in EAS, closely related to the pseudorapidity of their parent mesons. Moreover, the mean value of muon pseudorapidity in a registered shower reflects the longitudinal development of its hadronic component. All of this makes it a good tool for testing hadronic interaction models. The possibilities of such tests given by the KASCADE-Grande experimental setup are discussed and an example of the obtained muon pseudorapidity spectrum is shown.

Published
2009

35. Investigation of the S(500) distribution for large air showers detected with the KASCADE-Grande array

Author

Toma, G., Apel, W. D., Arteaga, J. C., Badea, F., Bekk, K., Bertaina, Mario Edoardo, Blumer, J., Bozdog, H., Brancus, I. M., Bruggemann, M., Buchholz, P., Cantoni, Elena Carla, Chiavassa, Andrea, Cossavella, F., Daumiller, K., Souza, De, DI PIERRO, Federico, Doll, P., Engel, R., Engler, J., Finger, M., Fuhrmann, D., Ghia, P. L., Gils, H. J., Glasstetter, R., Grupen, C., Haungs, A., Heck, D., Horandel, J. R., Huege, T., Isar, P. G., Kampert, K. H., Kang, D., Kickelbick, D., Klages, H. O., Kolotaev, Y., Luczak, P., Mathes, H. J., Mayer, Hh, . J., Milke, J., Mitrica, B., Morello, C., Navarra, Gianni Maria, Nehls, S., Oehlschlager, J., Ostapchenko, S., Over, S., Petcu, M., Pierog, T., Rebel, H., Roth, M., Schieler, H., Schroder, F., Sima, O., Stumpert, M., Trinchero, G., Ulrich, H., Walkowiak, W., Weindl, A., Wochele, J., Wommer, M., and Zabierowski, J.

Subjects
Physics, Nuclear and High Energy Physics, Range (particle radiation), business.industry, Attenuation, Context (language use), Atomic and Molecular Physics, and Optics, Charged particle, Computational physics, Optics, KASCADE, Angle of incidence (optics), business, Event (particle physics), Energy (signal processing)
Abstract

Previous EAS investigations have shown that the charged particle density becomes independent of the primary mass at certain distances from the shower core and can be used as an estimator for the primary energy. In the context of the KASCADE-Grande experiment, the particular distance to shower core at which t his effect takes place is around 500 m, hence the study at this particular distance and the notation S(500) for the charged particle density. It has been shown that S(500) maps the primary energy. We present results of further investigations in this direction. An attenuation correction function can be derived from the S(500) attenuation with the EAS angle of incidence, allowing us to build an all event S(500) spectrum. In view of a future conversion of the recorded S(500) spectrum to the primary energy, based on simulations a calibration of the observed S(500) values with the primary energies has been worked out (in the energy range accessible to the KASCADE-Grande array, 10 16 – 10 18 eV ).

Published
2009

36. Air shower radio detection with LOPES

Author

Blumer, J., Apel, W.D., Arteaga, J.C., Asch, T., Auffenberg, J., Badea, F., Bähren, L., Bekk, K., Bertaina, M., Biermann, P.L., Bozdog, H., Brancus, I.M., Bruggemann, M., Buchholz, P., Buitink, S.J., Butcher, H., Chiavassa, A., Cossavella, F., Daumiller, K., Souza, V. de, Pierro, F. di, Doll, P., Engel, R., Falcke, H.D.E., Gemmeke, H., Ghia, P.L., Glasstetter, R., Grupen, C., Haungs, A., Heck, D., Hörandel, J.R., Horneffer, K.H.A., Huege, T., Isar, P.G., Kampert, K.H., Kickelbick, D., Kolotaev, Y., Kromer, O., Kuijpers, J.M.E., Lafebre, S.J., Luczak, P., Mathes, H.J., Mayer, H.J., Meurer, C., Milke, J., Mitrica, B., Morello, C., Navarra, G., Nehls, S., Nigl, A., Oehlschlager, J., Ostapchenko, S., Over, S., Petcu, M., Petrovic, J., Pierog, T., Plewnia, S., Rautenberg, J., Rebel, H., Roth, M., Saftoiu, A., Schieler, H., Sima, O., Singh, K., Stumpert, M., Toma, G., Trinchero, G.C., Ulrich, H., Buren, J. van, Walkowiak, W., Weindl, A., Wochele, J., Zabierowski, J., and Zensus, J.A.

Subjects
Astronomy, ComputingMethodologies_DOCUMENTANDTEXTPROCESSING
Abstract

Contains fulltext : 72639.pdf (Author’s version preprint ) (Open Access) 3 p.

Published
2008

37. Test of interaction models up to 40 PeV by studying hadronic cores of EAS

Author

Apel, W.D., Badea, A.F., Bekk, K., Blümer, J., Bozdog, H., Brancus, I.M., Daumiller, K., Doll, P., Engel, R., Engler, J., Gils, H.J., Glasstetter, R., Haungs, A., Heck, D., Hörandel, J.R., Kampert, K.H., Klages, H.O., Mathes, H.J., Mayer, H.J., Milke, J., Oehlschläger, J., Ostapchenko, S., Petcu, M., Pierog, T., Rebel, H., Risse, A., Risse, M., Roth, M., Schatz, G., Schieler, H., Ulrich, H., Buren, J. van, Weindl, A., Wochele, J., Zabierowski, J., and Collaboration, T.K.

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Proton, Astrophysics::High Energy Astrophysical Phenomena, Astronomy, Hadron, Observable, Interaction energy, law.invention, Nuclear physics, Air shower, KASCADE, law, High Energy Physics::Experiment, Collider, Energy (signal processing)
Abstract

Contains fulltext : 36549.pdf (Publisher’s version ) (Closed access) The interpretation of extensive air shower measurements often requires a comparison with shower simulations in the atmosphere. These calculations rely on hadronic interaction models which have to extrapolate into kinematical and energy regions not explored by present-day collider experiments. The KASCADE experiment with its large hadron calorimeter and the detector array for the electromagnetic and muonic components provides experimental data to check such interaction models. For the simulations the program CORSIKA is used, which has several hadronic event generators embedded. For high-energy interactions (E_{\rm{lab}}\gtrsim100 \ {\rm{GeV}}) the models DPMJET, \{\sc NEX{\sc US}} , QGSJET and SIBYLL have been used. Low-energy interactions have been treated by GHEISHA and FLUKA. Different hadronic observables are investigated as well as their correlations with the electromagnetic and muonic shower components up to primary energies of about 40 PeV. Although the predictions of the more recent models are to a large extent compatible with the measured data within the range given by proton and iron primary particles, there are still significant differences between the individual models.

Published
2007

38. Radio detection of cosmic ray air showers with LOPES

Author

Huege, T., Lopes, C., Apel, W.D., Asch, T., Badea, A.F., Bähren, L., Bekk, K., Bercuci, A., Bertaina, M., Biermann, P.L., Blümer, J., Bozdog, H., Brancus, I.M., Buitink, S.J., Brüggemann, M., Buchholz, P., Butcher, H., Chiavassa, A., Cossavella, F., Daumiller, K., Pierro, F. di, Doll, P., Engel, R., Falcke, H.D.E., Gemmeke, H., Ghia, P.L., Glasstetter, R., Grupen, C., Hakenjos, A., Haungs, A., Heck, D., Hörandel, J.R., Horneffer, K.H.A., Isar, P.G., Kampert, K.H., Kolotaev, Y., Krömer, O., Kuijpers, J.M.E., Lafebre, S.J., Mathes, H.J., Mayer, H.J., Meurer, C., Milke, J., Mitrica, B., Morello, C., Navarra, G., Nehls, S., Nigl, A., Obenland, R., Oehlschläger, J., Ostapchenko, S., Over, S., Petcu, M., Petrovic, J., Pierog, T., Plewnia, S., Rebel, H., Risse, A., Roth, M., Schieler, H., Sima, O., Singh, K., Stümpert, M., Toma, G., Trinchero, G.C., Ulrich, H., Buren, J. van, Walkowiak, W., Weindl, A., Wochele, J., Zabierowski, J., Zensus, J.A., and Zimmermann, D.

Subjects
Astronomy
Abstract

Contains fulltext : 36386.pdf (Author’s version preprint ) (Open Access) Electronic Article Available from Elsevier Science.

Published
2007

39. Radio Emission in Atmospheric Air Showers : First Measurements with LOPES-30

Author

LOPES Collaboration, Apel, W. D., Badea, F., Bekk, K., Blümer, J., Bozdog, H., Daumiller, K., Doll, P., Engel, R., Haungs, A., Heck, D., Hörandel, J. R., Huege, T., Mathes, H. J., Mayer, H. J., Meurer, C., Milke, J., Obenland, R., Oehlschläger, J., Ostapchenko, S., Pierog, T., Plewnia, S., Rebel, H., Roth, M., Schieler, H., Stümpert, M., Ulrich, H., Buren, J. van, Weindl, A., Wochele, J., and [u. a.]

Subjects
Physics, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics::Instrumentation and Methods for Astrophysics, ddc:530
Abstract

When Ultra High Energy Cosmic Rays (UHECR) interact with particles in the Earth’s atmosphere, they produce a shower of secondary particles propagating toward the ground. LOPES-30 is an absolutely calibrated array of 30 dipole antennas investigating the radio emission from these showers in detail and clarifying if the technique is useful for largescale applications. LOPES-30 is co-located and measures in coincidence with the air shower experiment KASCADE-Grande. Status of LOPES-30 and first measurements are presented.

Published
2007
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40. Amplified radio emission from cosmic ray air showers in thunderstorms

Author

Buitink, S., Apel, W. D., Asch, T., Badea, F., Bahren, L., Bekk, K., Bercuci, A., Bertaina, Mario Edoardo, Biermann, P. L., Blumer, J., Bozdog, H., Brancus, I. M., Bruggemann, M., Buchholz, P., Butcher, H., Chiavassa, Andrea, Cossavella, F., Daumiller, K., Di Pierro, F., Doll, P., Engel, R., Falcke, H., Gemmeke, H., Ghia, P. L., Glasstetter, R., Grupen, C., Haungs, A., Heck, D., Horandel, J. R., Horneffer, A., Huege, T., Kampert, K. H., Kolotaev, Y., Kromer, O., Kuijpers, J., Lafebre, S., Mathes, H. J., Mayer, H. J., Meurer, C., Milke, J., Mitrica, B., Morello, C., Navarra, Gianni Maria, Nehls, S., Nigl, A., Obenland, R., Oehlschlager, J., Ostapchenko, S., Over, S., Petcu, M., Petrovic, J., Pierog, T., Plewnia, S., Rebel, H., Risse, A., Roth, M., Schieler, H., Sima, O., Singh, K., Stumpert, M., Toma, G., Trinchero, G. C., Ulrich, H., van Buren, J., Walkowiak, W., Weindl, A., Wochele, J., Zabierowski, J., Zensus, J. A., and Zimmermann, D.

Subjects
Physics, LOPES, Astronomy, Astrophysics::High Energy Astrophysical Phenomena, Astrophysics (astro-ph), Astrophysics::Instrumentation and Methods for Astrophysics, FOS: Physical sciences, Astronomy and Astrophysics, Cosmic ray, Astrophysics, Astrophysics::Cosmology and Extragalactic Astrophysics, Radiation, Particle acceleration, Air shower, Space and Planetary Science, Electric field, Ionization, Thunderstorm
Abstract

Cosmic ray air showers produce radio emission, consisting in large part of geosynchrotron emission. Since the radiation mechanism is based on particle acceleration, the atmospheric electric field can play an important role. Especially inside thunderclouds large electric fields can be present. We examine the contribution of an electric field to the emission mechanism theoretically and experimentally. Two mechanisms of amplification of radio emission are considered: the acceleration radiation of the shower particles and the radiation from the current that is produced by ionization electrons moving in the electric field. We selected and evaluated LOPES data recorded during thunderstorms, periods of heavy cloudiness and periods of cloudless weather. We find that during thunderstorms the radio emission can be strongly enhanced. No amplified pulses were found during periods of cloudless sky or heavy cloudiness, suggesting that the electric field effect for radio air shower measurements can be safely ignored during non-thunderstorm conditions., Comment: accepted for publication in A&A, 11 pages, 17 figures

Published
2007
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41. Radio detection of cosmic rays with LOPES (LOPES Collaboration)

Author

Grupen,C., Apel,W.D., Asch,T., Badea,A.F., Bähren,L., Bekk,K., Bercuci,A., Bertaina,M., Biermann,P.L., Blümer,J., Bozdog,H., Brancus,I.M., Buitink,S., Brüggemann,M., Buchholz,P., Butcher,H., Chiavassa,A., Cossavella,F., Daumiller,K., Di Pierro,F., Doll,P., Engel,R., Falcke,H., Gemmeke,H., Ghia,P.L., Glasstetter,R., Haungs,A., Heck,D., Hörandel,J.R., Horneffer,A., Huege,T., Kampert,K.H., Kolotaev,Y., Krömer,O., Kuijpers,J., Lafebre,S., Mathes,H.J., Mayer,H.J., Meurer,C., Milke,J., Mitrica,B., Morello,C., Navarra,G., Nehls,S., Nigl,A., Obenland,R., Oehlschläger,J., Ostapchenko,S., Over,S., Petcu,M., Petrovic,J., Pierog,T., Plewnia,S., Rebel,H., Roth,M., Schieler,H., Sima,O., Singh,K., Stümpert,M., Toma,G., Trinchero,G.C., Ulrich,H., van Buren,J., Walkowiak,W., Weindl,A., Wochele,J., Zabierowski,J., Zensus,J.A., and Zimmermann,D.

Subjects
Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, Extensive air shower, Astrophysics::Instrumentation and Methods for Astrophysics, Radio emission, Cosmic rays
Abstract

Data taken with a radio antenna array in combination with the ground-level air shower experiment KASCADE-Grande at the Forschungszentrum Karlsruhe open up the possibility to measure large extensive air showers with this new technique. The pulse height of the observed radio signals scales with the primary energy of the particles initiating the air shower. The dependence of the radio signal on the angle of the shower axis with respect to the Earth's geomagnetic field and the coherence of the radiation suggest that the radio signal generation is due to the geosynchrotron mechanism.

Published
2006

42. Combined LOPES and KASCADE-Grande data analysis

Author

Haungs, A., Apel, W. D., Badea, F., Bahren, L., Bekk, K., Bercuci, A., Bertaina, Mario Edoardo, Biermann, P. L., Blumer, J., Bozdog, H., Brancus, I. M., Bruggemann, M., Buchholz, P., Buitink, S., Butcher, H., Chiavassa, Andrea, Daumiller, K., A. G., De, C. M., De, Di Pierro, F., Doll, P., Engel, R., Falcke, H., Gemmeke, H., Ghia, P. L., Glasstetter, R., Grupen, C., Heck, D., Horandel, J. R., Horneffer, A., Huege, T., Kampert, K. H., Kant, G. W., Klein, U., Kolotaev, Y., Koopman, Y., Kromer, I., Kuijpers, J., Lafebre, S., Maier, G., Mathes, H. J., Mayer, H. J., Milke, J., Mitrica, B., Morello, C., Navarra, Gianni Maria, Nehls, S., Nigl, A., Obenland, R., Oehlschlager, J., Ostapchenko, S., Over, S., Pepping, H. J., Petcu, M., Petrovic, J., Pierog, T., Plewnia, S., Rebel, H., Risse, A., Roth, M., Schieler, H., Schoonderbeek, G., Sima, O., Stumpert, M., Toma, G., Trinchero, G. C., Ulrich, H., Van Buren, J., Van Capellen, W., Walkowiak, W., Weindl, A., Wijnholds, S., Wochele, J., Zabierowski, J., Zensus, J. A., and Zimmermann, D.

Published
2006

43. Radio emission in air showers measured by LOPES-10 in coincidence with KASCADE-Grande observations

Author

Badea, A. F., Apel, W. D., Asch, T., Bähren, L., Bekk, K., Bercuci, A., Bertaina, M., Biermann, P. L., Blümer, J., Bozdog, H., Brancus, I. M., Buitink, S., Brüggemann, M., Buchholz, P., Butcher, H., Chiavassa, A., Cossavella, F., Daumiller, K., Pierro, F. di, Doll, P., Engel, R., Falcke, H., Gemmeke, H., Ghia, P. L., Glasstetter, R., Grupen, C., Haungs, A., Heck, D., Hörandel, J. R., Horneffer, A., Huege, T., Kampert, K. H., Kolotaev, Y., Krömer, O., Kuijpers, J., Lafebre, S., Mathes, H. J., Mayer, H. J., Meurer, C., Milke, J., Mitrica, B., Morello, C., Navarra, G., Nehls, S., Nigl, A., Obenland, R., Oehlschläger, J., Ostapchenko, S., Over, S., Petcu, M., Petrovic, J., Pierog, T., Plewnia, S., Rebel, H., Risse, A., Roth, M., Schieler, H., Sima, O., Singh, K., Stümpert, M., Toma, G., Trinchero, G. C., Ulrich, H., Buren, J. van, Walkowiak, W., Weindl, A., Wochele, J., Zabierowski, J., Zensus, J. A., and Zimmermann, D.

Subjects
Physics, ddc:530
Published
2006
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44. Advanced detection methods of radio signals from cosmic rays for KASCADE Grande and Auger

Author

Gemmeke, H., Apel, W. D., Badea, F. A., Bahren, L., Bekk, K., Bercuci, A., Bertaina, Mario Edoardo, Biermann, P. L., Blumer, J., Bozdog, H., Brancus, I. M., Bruggemann, M., Buchholz, P., Buitink, S., Butcher, H., Chiavassa, Andrea, Daumiller, K., A. G., De, C. M., De, Di Pierro, F., Doll, P., Engel, R., Falcke, H., Ghia, P. L., Glasstetter, R., Grupen, C., Haungs, A., Heck, D., Horandel, J. R., Horneffer, A., Huege, T., Kampert, K. H., Kant, G. W., Klein, U., Kolotaev, Y., Koopman, Y., Kromer, O., Kuijpers, J., Lafebre, S., Maier, G., Mathes, H. J., Mayer, H. J., Milke, J., Mitrica, B., Morello, C., Navarra, Gianni Maria, Nehls, S., Nigl, A., Obenland, R., Oehlschlager, J., Ostapchenko, S., Over, S., Pepping, H. J., Petcu, M., Petrovic, J., Pierog, T., Plewnia, S., Rebel, H., Risse, A., Roth, M., Schieler, H., Schoonderbeek, G., Sima, O., Stumpert, M., Trinchero, G. C., Ulrich, H., Van Buren, J., Van Capellen, W., Walkowiak, W., Weindl, A., Wijnholds, S., Wochele, J., Zabierowski, J., Zensus, J. A., and Zimmermann, D.

Published
2006

45. Radio detection of cosmic rays with LOPES

Author

Grupen, C., Asch, T., Badea, A. F., Bahren, L., Bekk, K., Bercuci, A., Bertaina, Mario Edoardo, Biermann, P. L., Blumer, J., Bozdog, H., Brancus, I. M., Buitink, S., Bruggemann, M., Buchholz, P., Butcher, H., Chiavassa, Andrea, Cossavella, F., Daumiller, K., Di Pierro, F., Doll, P., Engel, R., Falcke, H., Gemmeke, H., Ghia, P. L., Glasstetter, R., Haungs, A., Heck, D., Horandel, J. R., Horneffer, A., Huege, T., Kampert, K. H., Kolotaev, Y., Kromer, O., Kuijpers, J., Lafebre, S., Mathes, H. J., Mayer, H. J., Meurer, C., Milke, J., Mitrica, B., Morello, C., Navarra, Gianni Maria, Nehls, S., Nigl, A., Obenland, R., Oehlschlager, J., Ostapchenko, S., Over, S., Petcu, M., Petrovic, J., Pierog, T., Plewnia, S., Rebel, H., Risse, A., Roth, M., Schieler, H., Sima, O., Singh, K., Stumpert, M., Toma, G., Trinchero, G. C., Ulrich, H., van Buren, J., Walkowiak, W., Weindl, A., Wochele, J., Zabierowski, J., Zensus, J. A., and Zimmermann, D.

Published
2006

46. KASCADE-Grande: a large acceptance, high-resolution cosmic-ray detector up to 10(18) eV

Author

Navarra, Gianni Maria, Antoni, T., Apel, W. D., Badea, F., Bekk, K., Bercuci, A., Bertaina, Mario Edoardo, Blumer, H., Bozdog, H., Bruggemann, M., Buchholz, P., Buttner, C., Chiavassa, Andrea, Doll, P., Engel, R., Engler, J., Fessler, F., Ghia, P. L., Gils, H. J., Glasstetter, R., Haungs, A., Heck, D., Horandel, J. R., Iwan, A., Kampert, K. H., Klages, H. O., Kolotaev, Y., Maier, G., Mathes, H. J., Mayer, H. J., Milke, J., Morello, C., Muller, M., Obenland, R., Oehlschlager, J., Ostapchenko, S., Petcu, M., Plewnia, S., Rebel, H., Roth, M., Schieler, H., Scholz, J., Thouw, T., Trinchero, G. C., Ulrich, H., Valchierotti, S., van Buren, J., Walkowiak, W., Weindl, A., Wochele, J., Zabierowski, J., and Zagromski, S.

Published
2004

48. Features of the EAS muon distributions measured with the KASCADE experiment

Author

Haungs, A., Köhler, K. U., Leibrock, H., Rebel, H., Antoni, T., Apel, W. D., Badea, A. F., Bekk, K., Bernlöhr, K., Bollmann, E., Bozdog, H., Brancus, I. M., Chilingarian, A., Daumiller, K., Doll, P., Engler, J., Fessler, F., Gils, H. J., Glasstetter, R., Haeusler, R., Hafemann, W., Heck, D., Holst, T., Hörandel, J. R., Kampert, K. H., Keim, H., Kempa, J., Klages, H. O., Knapp, J., Mathes, H. J., Mayer, H. J., Milke, J., Mühlenberg, D., Oehlschläger, J., Petcu, M., Risse, M., Roth, M., Schatz, G., Schieler, H., Schmidt, F. K., Thouw, T., Ulrich, H., Vardanyan, A., Vulpescu, B., Weber, J. H., Wentz, J., Wibig, T., Wiegert, T., Wochele, D., Wochele, J., Zabierowski, J., and Zagromski, S.

Subjects
Physics, ddc:530
Published
1999
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49. Core structure of extensive air showers at primary energies around the knee by a multifractal moments analysis

Author

Haungs, A., Kempa, J., Rebel, H., Apel, W. D., Badea, A. F., Bekk, K., Bollmann, E., Bozdog, H., Brancus, I. M., Brendle, M., Chilingarian, A., Daumiller, K., Doll, P., Engler, J., Gils, H. J., Glasstetter, R., Haeusler, R., Hafemann, W., Heck, D., Hörandel, J., Kampert, K. H., Keim, H., Klages, H. O., Knapp, J., Mathes, H. J., Mayer, H. J., Mühlenberg, D., Oehlschläger, J., Petcu, M., Risse, M., Roth, M., Schatz, G., Schmidt, F. K., Thouw, T., Vulpescu, B., Wagner, G. J., Weber, J. H., Wentz, J., Wibig, T., Wiegert, T., Wochele, D., Wochele, J., Zabierowski, J., and Zagromski, S.

Subjects
Physics, ddc:530
Published
1998
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50. Experimental investigations of the time structure of the EAS muon component

Author

Brancus, I. M., Haeusler, R., Badea, A. F., Rebel, H., Antoni, T., Apel, W. D., Bekk, K., Bernlöhr, K., Bollmann, E., Bozdog, H., Chilingarian, A., Daumiller, K., Doll, P., Engler, J., Fessler, F., Föller, M., Gils, H. J., Glasstetter, R., Hafemann, W., Haungs, A., Heck, D., Holst, T., Hörandel, J., Kampert, K. H., Keim, H., Kempa, J., Klages, H. O., Knapp, J., Mathes, H. J., Mayer, H. J., Milke, J., Mühlenberg, D., Oehlschläger, J., Petcu, M., Raidt, U., Risse, M., Roth, M., Schatz, G., Schieler, H., Schmidt, F. K., Thouw, T., Ulrich, H., Unger, J., Vulpescu, B., Weber, J. H., Wentz, J., Wibig, T., Wiegert, T., Wochele, D., Wochele, J., Zabierowski, J., and Zagromski, S.

Subjects
Physics, ddc:530
Published
1998
Full Text
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