Obtaining sigma ---> gamma gamma Width from Nucleon Polarizabilities
NAGIOS: RODERIC FUNCIONANDO

Obtaining sigma ---> gamma gamma Width from Nucleon Polarizabilities

DSpace Repository

Obtaining sigma ---> gamma gamma Width from Nucleon Polarizabilities

Show full item record

View       (104.8Kb)

    
Prades Hernández, Joaquim; Bernabeu Alberola, José Perfil
This document is a artículoDate2009

Este documento está disponible también en : http://hdl.handle.net/10550/53356
We propose a new method that fixes the coupling to two photons of the recently found lightest QCD resonance, the sigma. This coupling provides crucial information for discriminating the yet unknown nature of this special state. Our method uses available data on the nucleon polarizabilities together with analyticity and unitarity. Taking into account all the uncertainties, our result is Gamma_{pole}= 1.2 +- 0.4 keV.

    Prades Hernández, Joaquim; Bernabeu Alberola, José (2009) Obtaining sigma ---> gamma gamma Width from Nucleon Polarizabilities Nuclear Physics B-Proceedings Supplements 186 279 282
http://dx.doi.org/10.1016/j.nuclphysbps.2008.12.062

This item appears in the following Collection(s)

Show full item record

Search DSpace

Advanced Search

Browse

Statistics