Preliminary analysis of EUSO—TA data

14th International Conference on Topics in Astroparticle and Underground Physics

物理学;天文学

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

Universitá degli Studi di Torino, INFN Torino, Via Pietro Giuria 1, Torino, Italy^1

Computational Astrophysics Laboratory, RIKEN, 2-1 Hirosawa, Wako-shi, Japan^2

Institute for Cosmic Ray Research, University of Tokyo, Kashiwa, Chiba

277-8582, Japan^3

Université Paris Diderot, 10 Rue Alice Domon et Léonie Duquet, Paris, France^4

Karlsruher Institut für Technologie, Eggenstein-Leopoldshafen, Germany^5

Colorado School of Mines, 1523 Illinois St., Golden

CO, United States^6

INFN, Roma Tor Vergata, Via della Ricerca scientifica 1, Roma, Italy^7

INFN, Laboratori Nazionali di Frascati, Via E. Fermi 40, Frascati, Italy^8

ISDC Data Center for Astrophysics, Chemin d'Ecogia 16, Versoix, Switzerland

(10) National Centre for Nuclear Research, Lodz

90950, Poland

(11) Institute of Experimental Physics, Watsonova 47, Kosice

040 01, Slovakia

(12) KTH Royal Institute of Technology, Stockholm

SE-100 44, Sweden

(13) University of Alabama in Huntsville, Huntsville, United States

(14) Eberhard Karls Universität Tübingen, Sand 1, Tübingen, Germany

(15) Inst. for High Energy Astrophysics, University of Utah, Salt Lake City, United States^9

关键词: Air showers;    Detector response;    Fluorescence detector;    JEM-EUSO;    Preliminary analysis;    Sky condition;    Telescope arrays;    Trigger schemes;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/718/5/052011/pdf
DOI  :  10.1088/1742-6596/718/5/052011

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

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.