Document Type

Journal Article

Department/Unit

Department of Physics

Language

English

Abstract

Using the helicity formalism, we calculate the combined angular distribution functions of the polarized gamma photons and electron in the triple cascade process pp → 3D2 → χJ+γ1 → (ψ+γ2)+γ1 → (e+ + e−)+γ1+γ2 (J=0,1,2), when p and p are unpolarized. We also present the partially integrated angular distribution functions in different cases. Our results show that by measuring the two-particle angular distribution of γ 1 and γ 2 and that of γ 2 and e− with the polarization of either one of the two particles, one can determine the relative magnitudes as well as the relative phases of all the helicity amplitudes in the two radiative decay processes 3D2 → χ J+γ 1 and χ J → ψ+γ 2. PACS 11.80.Cr, 13.20.Fc, 13.60.Le, 14.40Gx

Publication Date

2010

Source Publication Title

The European Physical Journal C - Particles and Fields

Volume

67

Issue

1-2

Start Page

125

End Page

141

Publisher

Springer Verlag

Peer Reviewed

1

DOI

10.1140/epjc/s10052-010-1289-3

Link to Publisher's Edition

http://dx.doi.org/10.1140/epjc/s10052-010-1289-3

ISSN (print)

14346052

Included in

Physics Commons

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