6533b872fe1ef96bd12d36c3

RESEARCH PRODUCT

Searching for localized cosmic particle sources with an unbinned maximum likelihood approach

T. NeunhöfferL. Köpke

subject

PhysicsNuclear and High Energy PhysicsCOSMIC cancer databaseLikelihood analysisPosition (vector)Maximum likelihoodFluxParticleAngular resolutionAstrophysicsStatistical physicsLikelihood functionInstrumentation

description

Abstract An unbinned method to search for localized cosmic particle sources is presented. The expected source shape, the measured background shape, and the estimated angular resolution of individual tracks are used to construct a likelihood function. Estimates of the flux, the position and—in particular—the significance of a source can be readily obtained. A full confidence belt construction to deduce flux limits is presented. General statistical issues when searching for sources of unknown position are discussed.

yearjournalcountryeditionlanguage
2006-03-01Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
https://doi.org/10.1016/j.nima.2005.11.240