IceCube EHE Event search with 9 strings 3
IceCube/EHE Search/Analysis

Level-1 EHE Sample: update



click to enlearge plots.

Basic properties

Event Livetime after file/runID cleaning

NPE distributions - lower plots are of EHE atmospheric background region

NPE distributions - lower plots are now only with IceTop event

WEASEL time

NPE vs. run id from the sample processed early Dec.

The same as above but from sample processed ~mid Feb...

A closer look at weasel time ~ by eye between 89658 and 89712

Nch vs. run id from the sample processed mid Feb. - the difference/increase is not so obvious.

Merging different channels

About the use of channel 0 only... channel wise FADC vs ATWD based NPE from REAL sample
left obtained with calibration mode 1, right obtained from channel 0 only

channel wise FADC vs ATWD based NPE from MC sample, obtained with calibration mode 1 but quite different fromthe same calibration applied in real data, rather close to the case only channel zero is used.

File length dependence

Plotted frequency vs. runID, Initiall distribution - color is the file length. Lower plot is cut at 200 sec length

Plotted frequency vs. runID, look at Nch>80 rate only, cut at different length - color is the file length. Initial guess of 200 sec cut was not enough and in the following cut at 300 [sec].

Number of event in the file (x) vs. frequency - color is still the file length.



send your comments to: aya at hepburn.s.chiba-u.ac.jp