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Add to Calendar 2/5/2018 1:00 pm 2/5/2018 America/Chicago High Energy/Medium Energy Physics Seminar:"Quark Masses" DESCRIPTION:

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 charmed 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.

 

\n\nSPEAKER:

Dr. Andreas S. Kronfeld, Fermi National Laboratoy Batavia, Illinois

464 Loomis

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High Energy/Medium Energy Physics Seminar:"Quark Masses"

Speaker Dr. Andreas S. Kronfeld, Fermi National Laboratoy Batavia, Illinois
Date: 2/5/2018
Time: 1 p.m.
Location:

464 Loomis

Event Contact: Marjorie Gamel
217-333-3762
mgamel@illinois.edu
Sponsor:

Department of Physics

Event Type: Seminar/Symposium
 

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 charmed 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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