Composition measurements via depth of airshower maximum at the Telescope Array

William F. Hanlon (Author), J. P. Lundquist (Author)

Abstract

Telescope Array (TA) was designed to answer important questions about the UHECR flux with energies above 10^17 eV such as spectrum, arrival direction, and mass composition. Because the UHECR flux is rapidly falling in this energy region, TA’s large exposure makes it one of the few experiments in the world that can adequately explore these issues. Composition is particularly difficult to measure because mass can not be measured directly due to the low flux. TA’s multiple methods of observing UHECR induced air showers will be explained, as well as how composition can be measured by these methods. Good agreement among the different measurement techniques is found leading to greater confidence in measuring UHECR mass composition and a way to test and understand TA systematic uncertainties.

Keywords

ultra-high energy cosmic rays;cosmic rays;composition;

Data

Language:	English
Year of publishing:	2018
Typology:	1.08 - Published Scientific Conference Contribution
Organization:	UNG - University of Nova Gorica
UDC:	52
COBISS:	13043203
Views:	1955
Downloads:	100
Average score:	0 (0 votes)
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