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22-28 July 2018
Kellogg Hotel and Conference Center
EST timezone

Quark mass determinations with the RI-SMOM scheme and HISQ action

Jul 26, 2018, 8:30 AM
20m
104 (Kellogg Hotel and Conference Center)

104

Kellogg Hotel and Conference Center

219 S Harrison Rd, East Lansing, MI 48824
Standard Model Parameters and Renormalization Standard Model Parameters and Renormalization

Speaker

Mr Daniel Hatton (University of Glasgow)

Description

Lattice QCD provides several avenues for the high precision determination of quark masses. Using the RI-SMOM scheme applied to lattice calculations with the HISQ action, we obtain mass renormalisation factors that we use to provide strange and charm quark masses with 1% precision. The calculation involves the study of various sources of systematic uncertainty, including an analysis of possible nonperturbative (condensate) condensate contributions. These results allow a comparison of different mass determination methods of comparable precision. In particular we (HPQCD) find good agreement between RI-SMOM and current-current correlator determinations based on the same lattice QCD bare masses, providing a strong test of our understanding of systematic uncertainties.

Primary author

Mr Daniel Hatton (University of Glasgow)

Co-authors

Dr Andrew Lytle (University of Glasgow) Dr Christian Sturm (Brookhaven National Laboratory) Prof. Christine Davies (University of Glasgow) Prof. Peter Lepage (Cornell University)

Presentation Materials