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Title:Constraints on the diffuse photon flux with energies above 10^18 eV using the surface detector of the Telescope Array experiment
Authors:Abbasi, R.U. (Author)
Lundquist, J. P. (Author)
et al.
Files:This document has no files. This document may have a phisical copy in the library of the organization, check the status via COBISS. Link is opened in a new window
Language:English
Work type:Not categorized (r6)
Tipology:1.01 - Original Scientific Article
Organization:UNG - University of Nova Gorica
Abstract:We present the results of the search for ultra-high-energy photons with nine years of data from the Telescope Array surface detector. A multivariate classifier is built upon 16 reconstructed parameters of the extensive air shower. These parameters are related to the curvature and the width of the shower front, the steepness of the lateral distribution function, and the timing parameters of the waveforms sensitive to the shower muon content. A total number of two photon candidates found in the search is fully compatible with the expected background. The 95% CL limits on the diffuse flux of the photons with energies greater than 10^18.0, 10^18.5, 10^19.0, 10^19.5 and 10^20.0 eV are set at the level of 0.067, 0.012, 0.0036, 0.0013, correspondingly.
Keywords:Ultra-high-energy photons, Telescope array experiment, Extensive air showers
Year of publishing:2018
Number of pages:7
Numbering:110, 110
COBISS_ID:13240067 Link is opened in a new window
URN:URN:SI:UNG:REP:TM7ZFVAT
DOI:10.1016/j.astropartphys.2019.03.003 Link is opened in a new window
License:CC BY-NC-ND 4.0
This work is available under this license: Creative Commons Attribution Non-Commercial No Derivatives 4.0 International
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Title:Astroparticle Physics
Year of publishing:2018

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