کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1771162 1020732 2010 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimization of multivariate analysis for IACT stereoscopic systems
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم نجوم و فیزیک نجومی
پیش نمایش صفحه اول مقاله
Optimization of multivariate analysis for IACT stereoscopic systems
چکیده انگلیسی

Multivariate methods have been recently introduced and successfully applied for the discrimination of signal from background in the selection of genuine very-high energy γ-ray events with the H.E.S.S. Imaging Atmospheric Cerenkov Telescope. The complementary performance of three independent reconstruction methods developed for the H.E.S.S. data analysis, namely Hillas, model and 3D-model suggests the optimization of their combination through the application of a resulting efficient multivariate estimator. In this work the boosted decision tree method is proposed leading to a significant increase in the signal over background ratio compared to the standard approaches. The improved sensitivity is also demonstrated through a comparative analysis of a set of benchmark astrophysical sources.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Astroparticle Physics - Volume 34, Issue 1, August 2010, Pages 25–32
نویسندگان
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