XIIIth Quark Confinement and the Hadron Spectrum

The mixing of hybrids with quarkonia

3 Aug 2018, 14:20

20m

Hall H (Arts Bldg.)

Talk C: Heavy quarks Heavy quarks

Speaker

Joan Soto (Universitat de Barcelona)

Description

We present an effective field theory calculation of the lower lying heavy hybrid spectrum, which includes mixing with heavy quarkonium states as a novel feature. Spin zero (one) hybrids turn out to mix with spin one (zero) quarkonia, which is intrumental to explain apparent spin symmetry violating decays of certain XYZ resonances that have been identified as hybrid states. We also present some model independent results for the hiperfine splittings.