XIIIth Quark Confinement and the Hadron Spectrum

31 July 2018 to 6 August 2018
Maynooth University
Europe/Dublin timezone

Higher-order condensate corrections to bottomonium observables

2 Aug 2018, 15:20
20m
Hall H (Arts Bldg.)

Hall H

Arts Bldg.

Talk C: Heavy quarks

Speaker

Dr Thomas Rauh (IPPP Durham)

Description

The perturbative accuracy for bottomonium observables has recently been extended to next-to-next-to-next-to-leading order. Assuming the hierarchy $\Lambda_\text{QCD}\ll m_bv^2$ holds, non-perturbative corrections take the form of local condensates. I determine higher-order corrections in this approach and assess its validity by studying the convergence of the series. In particular, the non-perturbative effects on the determination of the bottom-quark mass from the bottomonium spectrum and sum rules are discussed.

Primary author

Dr Thomas Rauh (IPPP Durham)