# 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}

}

Other availability

Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save to My Library

You must Sign In or Create an Account in order to save documents to your library.