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July 29, 2015 to August 6, 2015
World Forum
Europe/Amsterdam timezone

Energy spectrum of the primary cosmic rays in the range 10\,GV--10\,TV

Aug 1, 2015, 11:15 AM
15m
Yangtze 2 (World Forum)

Yangtze 2

World Forum

Churchillplein 10 2517 JW Den Haag The Netherlands
Oral contribution CR-EX Parallel CR09 EAS knee

Speaker

Mr BALAKRISHNAN HARI HARAN (HECR Group, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400 005, India and GRAPES-3 Experiment, Cosmic Ray Laboratory, Ooty 643 001, India)

Description

The GRAPES-3 experiment measures directional flux 1 GeV muons with very high precision. For a precise simulation of the measured flux of 1GeV muons in GRAPES-3, the energy spectrum of primary cosmic rays should be accurately known. We have used the data from several balloon and satellite based experiments to determine the proton and helium spectrum in the energy range from 10GV to 10TV. Since these experiments utilize different measurement techniques the results on energy spectrum were represented in different units. A detailed study has been performed to evaluate the spectral indices of proton and helium primaries in the corresponding energy ranges of 10GeV-10TeV and 20GeV-20TeV, respectively. The results of this study will be presented in the conference.
Collaboration -- not specified --
Registration number following "ICRC2015-I/" 54

Primary author

Mr ANUJ CHANDRA (HECR Group, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400 005, India and GRAPES-3 Experiment, Cosmic Ray Laboratory, Ooty 643 001, India)

Co-authors

Dr AKITOSHI OSHIMA (Chubu University, Engineering Science Laboratory, Kasugai-shi, Aichi 487-8501, Japan) Mr ATUL JAIN (HECR Group, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400 005, India and GRAPES-3 Experiment, Cosmic Ray Laboratory, Ooty 643 001, India) Mr B SRINIVASA RAO (HECR Group, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400 005, India and GRAPES-3 Experiment, Cosmic Ray Laboratory, Ooty 643 001, India) Mr BALAKRISHNAN HARI HARAN (HECR Group, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400 005, India and GRAPES-3 Experiment, Cosmic Ray Laboratory, Ooty 643 001, India) Mr P JAGDEESAN (HECR Group, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400 005, India and GRAPES-3 Experiment, Cosmic Ray Laboratory, Ooty 643 001, India) Mr PRANABA K NAYAK (HECR Group, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400 005, India and GRAPES-3 Experiment, Cosmic Ray Laboratory, Ooty 643 001, India) Dr PRAVATA K MOHANTY (HECR Group, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400 005, India and GRAPES-3 Experiment, Cosmic Ray Laboratory, Ooty 643 001, India) Mr SAM D MORRIS (HECR Group, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400 005, India and GRAPES-3 Experiment, Cosmic Ray Laboratory, Ooty 643 001, India) Prof. SBURO KAWAKAMI (Graduate School of Science, Osaka City University, Osaka 558-8585, Japan) Prof. SHAKEEL AHMAD (Department of Physics, Aligarh Muslim University, Aligarh 202002, India) Prof. SHASHI R DUGAD (HECR Group, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400 005, India and GRAPES-3 Experiment, Cosmic Ray Laboratory, Ooty 643 001, India) Prof. SUNIL K GUPTA (HECR Group, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400 005, India and GRAPES-3 Experiment, Cosmic Ray Laboratory, Ooty 643 001, India) Prof. YOHIO HAYASHI (Graduate School of Science, Osaka City University, Osaka 558-8585, Japan)

Presentation materials