July 29, 2015 to August 6, 2015
World Forum
Europe/Amsterdam timezone

Constant Intensity Method in IceTop

Aug 4, 2015, 4:00 PM
Amazon Foyer (World Forum)

Amazon Foyer

World Forum

Churchillplein 10 2517 JW Den Haag The Netherlands
Board: 211
Poster contribution CR-EX Poster 3 CR


Mr Ramesh Koirala (University of Delaware)


The Constant Intensity method is used to study how signals in IceTop, the surface component of the IceCube Neutrino Observatory, are attenuated by the atmosphere as a function of zenith angle and primary energy. IceTop analyses so far have only used data with zenith angles less than 40$^o$. A goal of this analysis is to extend the standard IceTop reconstruction to larger zenith angles. Showers are classified by the signal strength at 125 m from the shower core, determined from the fitted lateral distribution. The resulting signal distributions are corrected for attenuation using the constant intensity method and projected to a reference angle of 27$^o$. Finally, a Gaisser-Hillas type function is used to fit the attenuation curve. The shower maximum parameter, X$_{max}$, from this fit is compared with results from other detectors.
Registration number following "ICRC2015-I/" 919
Collaboration IceCube

Primary author

Mr Ramesh Koirala (University of Delaware)

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