info/FAQ

Research articles

My Pages

Stat

Members: 3645
Articles: 2'504'928
Articles rated: 2609

26 April 2024

» arxiv » hep-ph/0509042

Article overview

Radiative decays of quarkonium states, momentum operator expansion and nilpotent operators
A.V. Anisovich ; V.V. Anisovich ; V.N. Markov ; M.A. Matveev ; V.A. Nikonov ; A.V. Sarantsev ;
Date:	6 Sep 2005
Subject:	hep-ph
Abstract:	We present the method of calculation of radiative decays of composite quark-antiquark systems with different J^{PC}: (Qar Q)_{in} -> gamma (Qar Q)_{out}. The method is relativistic invariant, it is based on the double dispersion relation integrals over the masses of composite mesons, it can be used for the high spin particles and provides us with the gauge invariant transition amplitudes. We apply this method to the case when the photon is emitted by a constituent in the intermediate state (additive quark model). We perform the momentum operator expansion of the spin amplitudes for the decay processes. The problem of nilpotent spin operators is discussed.
Source:	arXiv, hep-ph/0509042
Services:	Forum \| Review \| PDF \| Favorites

No review found.

Did you like this article?

This article or document is ...
important:
of broad interest:
readable:
new:
correct:
Global appreciation:

Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.

ScienXe.org
» my Online CV
» Free

News, job offers and information for researchers and scientists:

home

contact

sitemap