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Title: Modern Statistical Methods for GLAST Event Analysis

Abstract

We describe a statistical reconstruction methodology for the GLAST LAT. The methodology incorporates in detail the statistics of the interactions of photons and charged particles with the tungsten layers in the LAT, and uses the scattering distributions to compute the full probability distribution over the energy and direction of the incident photons. It uses model selection methods to estimate the probabilities of the possible geometrical configurations of the particles produced in the detector, and numerical marginalization over the energy loss and scattering angles at each layer. Preliminary results show that it can improve on the tracker-only energy estimates for muons and electrons incident on the LAT.

Authors:
; ; ;
Publication Date:
Research Org.:
Stanford Linear Accelerator Center (SLAC)
Sponsoring Org.:
USDOE
OSTI Identifier:
902101
Report Number(s):
SLAC-PUB-12426
astro-ph/0703738; TRN: US0702786
DOE Contract Number:  
AC02-76SF00515
Resource Type:
Conference
Resource Relation:
Conference: To appear in the proceedings of 1st GLAST Symposium, Stanford, Palo Alto, 5-8 Feb 2007
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; CHARGED PARTICLES; DISTRIBUTION; ELECTRONS; MUONS; PHOTONS; PROBABILITY; SCATTERING; STATISTICS; TUNGSTEN; Astrophysics,ASTRO

Citation Formats

Morris, Robin D., /RIACS, Mtn. View, Cohen-Tanugi, Johann, and /SLAC /KIPAC, Menlo Park. Modern Statistical Methods for GLAST Event Analysis. United States: N. p., 2007. Web.
Morris, Robin D., /RIACS, Mtn. View, Cohen-Tanugi, Johann, & /SLAC /KIPAC, Menlo Park. Modern Statistical Methods for GLAST Event Analysis. United States.
Morris, Robin D., /RIACS, Mtn. View, Cohen-Tanugi, Johann, and /SLAC /KIPAC, Menlo Park. Tue . "Modern Statistical Methods for GLAST Event Analysis". United States. doi:. https://www.osti.gov/servlets/purl/902101.
@article{osti_902101,
title = {Modern Statistical Methods for GLAST Event Analysis},
author = {Morris, Robin D. and /RIACS, Mtn. View and Cohen-Tanugi, Johann and /SLAC /KIPAC, Menlo Park},
abstractNote = {We describe a statistical reconstruction methodology for the GLAST LAT. The methodology incorporates in detail the statistics of the interactions of photons and charged particles with the tungsten layers in the LAT, and uses the scattering distributions to compute the full probability distribution over the energy and direction of the incident photons. It uses model selection methods to estimate the probabilities of the possible geometrical configurations of the particles produced in the detector, and numerical marginalization over the energy loss and scattering angles at each layer. Preliminary results show that it can improve on the tracker-only energy estimates for muons and electrons incident on the LAT.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Apr 10 00:00:00 EDT 2007},
month = {Tue Apr 10 00:00:00 EDT 2007}
}

Conference:
Other availability
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