Speaker
Mrs
Lea Jouvin
(APC)
Description
Spectral extraction in the VHE range is usually performed using the
ON-OFF likelihood statistics which is based on the profile likelihood
technique. The latter is known to lead to inconsistent estimators in
some situations. We present here a systematic MC study of the
distribution of fitted spectral parameters for typical observations with
the HESS observatory and show that, in some conditions, spectral extraction
yields inconsistent estimators. We discuss some techniques to alleviate
this effect and the impact on the search for spectral cutoffs in the
very low statistic regime.
| Registration number following "ICRC2015-I/" | 842 |
|---|---|
| Collaboration | H.E.S.S. |
Primary author
Mrs
Lea Jouvin
(APC)
Co-authors
Mr
Anne Lemiere
(APC)
Mr
Christopher Van Eldik
(ECAP)
Mr
Igor Oya
(Humboldt-Universität)
Mr
Regis Terrier
(APC)
Stefan Ohm
(Desy)
