Speaker
Andrea Chiavassa
(Universita` di Torino)
Description
In this contribution we present the results of a search for large scale anisotropies performed,
using the East-West method, with the whole data set of the KASCADE-Grande experiment.
The counts distribution in sidereal time intervals of 20 minutes, obtained applying the East-West
analysis technique (correctly removing instrumental and atmospheric effects), is analyzed in
terms of a dipole component. The amplitude obtained with the whole data set has a 3.5 sigma significance,
therefore an upper limit is derived: $A<0.47\times10^{-2}$.
To investigate a possible variation of the phase of the first harmonic with energy the search has been
repeated in shower size intervals. The errors on the phases obtained in all energy intervals are of the
order of 20-30 degrees. The phases obtained point at a sky direction that agrees with those measured at
lower energies by the EAS-TOP, IceCube and IceTop experiments and at higher energy by the low energy
extension of the Pierre Auger Observatory.
| Registration number following "ICRC2015-I/" | 0412 |
|---|---|
| Collaboration | KASCADE-Grande |
Author
Andrea Chiavassa
(Universita` di Torino)
