ǂA ǂsystematic uncertainty on the energy scale of the Telescope Array fluorescence detectors

Toshihiro Fujii (Author), J. P. Lundquist (Author)

Abstract

The Telescope Array experiment (TA) is the largest cosmic-ray detector in the northern hemi-sphere and consists of a surface detector (SD) array, plus three fluorescence detector (FD) stations overlooking the SD. The large field-of-view of an FD allows for reconstruction of the air-shower development in the atmosphere by imaging ultra-violet fluorescence light from atmospheric nitrogen excited by UHECRs. In estimation of the primary energy it is necessary to add to the calorimetric energy observed by the FD a “missing energy”, meaning the fraction of the primary energy that is not deposited by charged particles in the air. We report on the measurement of the missing energy from observed data collected by the TA FD and TA SD, independently of Monte Carlo simulations, using a technique pioneered by the Pierre Auger Observatory. We also address the effect on the energy scale attributed to fluorescence yield parameters.

Keywords

high energy;cosmic rays;energy spectrum;

Data

Language:	English
Year of publishing:	2017
Typology:	1.08 - Published Scientific Conference Contribution
Organization:	UNG - University of Nova Gorica
UDC:	52
COBISS:	13034499
ISSN:	1824-8039
Views:	1947
Downloads:	74
Average score:	0 (0 votes)
Metadata:

Other data

URN:	URN:SI:UNG
Type (COBISS):	Not categorized
Pages:	str. 1-7
Chronology:	2017
DOI:	10.22323/1.301.0524
ID:	11600778