Document Type

Journal Article

Department/ Unit

Department of Physics

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 Year

2010

Journal Title

The European Physical Journal C - Particles and Fields

Volume number

67

Issue number

1-2

Publisher

Springer Verlag

First Page (page number)

125

Last Page (page number)

141

Referreed

1

DOI

10.1140/epjc/s10052-010-1289-3

ISSN (print)

1434-6052

Link to Publisher’s Edition

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

Included in

Physics Commons

Share

COinS