Pion-cloud effects in the BSE description of mesons

Details Pion-cloud effects in the BSE description of mesons Pion-cloud effects in the BSE description of mesons

2008-12-08

arxiv.org/abs/0812.1499v1

PoS Confinement8:076,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk given at the 8th Conference "Quark Confinement and the Hadron Spectrum", Mainz, Germany, 1-6 September 2008

Scientific paper

We investigate the effect of including hadronic resonance contributions in the description of light quarks and mesons. To this end we take into account the back-coupling of the pion onto the quark propagator within the non-perturbative continuum framework of Schwinger-Dyson equations (SDE) and Bethe-Salpeter equations (BSE), in essence describing the so-called \emph{pion-cloud}. As a result of our study we find that an unquenching of this form provides for considerable effects in the spectrum of light mesons.

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