[Jlab-seminars] Theory Center Seminar

[Mary Fox]

Theory Center Seminar
Fri., May 25, 2018
2:00 p.m. (coffee at 1:45 p.m.)
CEBAF Center, Room F224/225

Andreas Kronfeld
Fermilab

*Quark Masses*

I will present a new method to determine quark masses from heavy-light 
meson masses.
The two theoretical foundations of the method are 1) the well-known 
formula for heavy-light
hadron masses in the heavy-quark effective theory, and 2) a new 
definition of the heavy-quark
mass with an elegant treatment of the renormalon problem. Using 
lattice-QCD data from the
Fermilab Lattice and MILC Collaborations, the method yields precision on 
the charm and bottom
quark masses comparable to the best existing determinations. Using very 
precise quark-mass
ratios, including m_c/m_s from this analysis, we can obtain the most 
precise determinations
of the up-, down-, and strange-quark masses.


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