Coincidence Algebra Bundle for Decay Quivers: An Algebraic Approach to Gamma-ray Spectroscopy

TL;DR

This paper introduces a novel algebraic framework using coincidence algebra bundles for decay quivers to improve gamma-ray spectroscopy analysis, enabling more comprehensive probability calculations.

Contribution

It extends the path algebra of quivers to include non-composable paths and models decay schemes as fibers in a coincidence algebra bundle, offering a new algebraic approach.

Findings

Defined the coincidence algebra as an extension of the path algebra.

Realized the coincidence algebra as fibers in a bundle structure.

Provided a method to calculate decay scheme probabilities using the algebraic framework.

Abstract

Motivated by the need for a more comprehensive algebraic structure to calculate coincidence probabilities of a general decay scheme for gamma ray spectroscopy, we model the decay scheme, rather naturally, as a quiver through which we define a decay quiver. The path algebra of quivers is the underlying, more general, algebra for transition matrices that is typically used in modeling decay schemes. The path algebra allows for concatenation of transitions which affords the calculation of cascade probabilities. We extend the path algebra to allow for the multiplication of non-composable paths, i.e., transition that don't directly share a level connecting them. We define the coincidence algebra as the algebra that allows for such an extension and realize it as the fibres for a coincidence algebra bundle, the base space of which is the path algebra where decay schemes live. A given decay schemes coincidence probabilities are calculated on its fibre. \textit{Detection maps} are defined as maps on the base space that map transition probabilities to detected probabilities.