Abstract

The EUSO-TA detector is a pathfinder for the JEM-EUSO project and is currently installed in Black Rock Mesa (Utah) on the site of the Telescope Array fluorescence detectors. Aim of this experiment is to validate the observation principle of JEM-EUSO on air showers measured from ground. The experiment gets data in coincidence with the TA triggers to increase the likelihood of cosmic ray detection. In this framework the collaboration is also testing the detector response with respect to several test events from lasers and LED flashers. Moreover, another aim of the project is the validation of the stability of the data acquisition chain in real sky condition and the optimization of the trigger scheme for the rejection of background. Data analysis is ongoing to identify cosmic ray events in coincidence with the TA detector. In this contribution we will show the response of the EUSO-TA detector to all the different typologies of events and we will show some preliminary results on the trigger optimization performed on such data.

Details

Title
Preliminary analysis of EUSO—TA data
Author
Fenu, F 1 ; Piotrowski, L W 2 ; Shin, H 3 ; Jung, A 4 ; Bacholle, S 4 ; Bisconti, F 5 ; Capel, F 6 ; Eser, J 7 ; Kawasaki, Y 2 ; Kuznetsov, E 8 ; Larsson, O 2 ; Mackovjak, S 9 ; Miyamoto, H 1 ; Plebaniak, Z 10 ; Prevot, G 4 ; Putis, M 11 ; Shinozaki, K 12 ; Adams, J 8 ; Bertaina, M 1 ; Bobik, P 11 ; Casolino, M 13 ; Matthews, J N 14 ; Ricci, M 15 ; Wiencke, L 7 

 Universitá degli studi di Torino, INFN Torino, Via Pietro Giuria 1, Torino, Italy 
 Computational Astrophysics Laboratory, RIKEN, 2-1 Hirosawa, Wako-shi, Japan 
 Institute for Cosmic Ray Research, University of Tokyo, Kashiwa, Chiba 277-8582, Japan 
 Université Paris Diderot, 10 Rue Alice Domon et Léonie Duquet, Paris, France 
 Karlsruher Institut für Technologie, Eggenstein-Leopoldshafen, Germany 
 KTH Royal Institute of Technology, SE-100 44, Stockholm, Sweden 
 Colorado School of Mines, 1523 Illinois St., Golden Colorado, USA 
 University of Alabama in Huntsville, Huntsville, USA 
 ISDC Data Center for Astrophysics, Chemin d’Ecogia 16, Versoix, Switzerland 
10  National Centre for Nuclear Research, 90950 Lodz, Poland 
11  Institute of Experimental Physics, Watsonova 47, 040 01 Kosice, Slovak Republic 
12  Eberhard Karls Universität Tübingen, Sand 1, Tübingen, Germany 
13  Computational Astrophysics Laboratory, RIKEN, 2-1 Hirosawa, Wako-shi, Japan; INFN, Roma Tor Vergata, Via della Ricerca scientifica 1, Roma, Italy 
14  Inst. for High Energy Astrophysics, University of Utah, Salt Lake City, USA 
15  INFN, Laboratori Nazionali di Frascati, Via E. Fermi 40, Frascati, Italy 
Publication year
2016
Publication date
May 2016
Publisher
IOP Publishing
ISSN
17426588
e-ISSN
17426596
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2575126142
Copyright
© 2016. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.