Model discrimination in pseudoscalar-meson photoproduction

Nys, J., Ryckebusch, J., Ireland, D.G. and Glazier, D.I. (2016) Model discrimination in pseudoscalar-meson photoproduction. Physics Letters B, 759, pp. 260-265. (doi: 10.1016/j.physletb.2016.05.069)

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To learn about a physical system of interest, experimental results must be able to discriminate among models. We introduce a geometrical measure to quantify the distance between models for pseudoscalar-meson photoproduction in amplitude space. Experimental observables, with finite precision, map to probability distributions in amplitude space, and the characteristic width scale of such distributions needs to be smaller than the distance between models if the observable data are going to be useful. We therefore also introduce a method for evaluating probability distributions in amplitude space that arise as a result of one or more measurements, and show how one can use this to determine what further measurements are going to be necessary to be able to discriminate among models.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Glazier, Dr Derek and Ireland, Professor David
Authors: Nys, J., Ryckebusch, J., Ireland, D.G., and Glazier, D.I.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Physics Letters B
Publisher:Elsevier BV
ISSN (Online):1873-2445
Published Online:26 May 2016
Copyright Holders:Copyright © 2016 The Authors
First Published:First published in Physics Letters B 759:3260-265
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
653082Glasgow nuclear physics consolidated grantDavid IrelandScience & Technologies Facilities Council (STFC)ST/L005719/1S&E P&A - PHYSICS & ASTRONOMY