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Title: Short-distance matrix elements for $D$-meson mixing for 2+1 lattice QCD

We study the short-distance hadronic matrix elements for D-meson mixing with partially quenched Nf = 2+1 lattice QCD. We use a large set of the MIMD Lattice Computation Collaboration's gauge configurations with a2 tadpole-improved staggered sea quarks and tadpole-improved Lüscher-Weisz gluons. We use the a2 tadpole-improved action for valence light quarks and the Sheikoleslami-Wohlert action with the Fermilab interpretation for the valence charm quark. Our calculation covers the complete set of five operators needed to constrain new physics models for D-meson mixing. We match our matrix elements to the MS-NDR scheme evaluated at 3 GeV. We report values for the Beneke-Buchalla-Greub-Lenz-Nierste choice of evanescent operators.
Authors:
 [1]
  1. Univ. of Illinois, Champaign, IL (United States)
Publication Date:
OSTI Identifier:
1212174
Report Number(s):
FERMILAB-THESIS--2015-09
TRN: US1601301
DOE Contract Number:
AC02-07CH11359
Resource Type:
Thesis/Dissertation
Research Org:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; D MESONS; D QUARKS; U QUARKS; C QUARKS; QUANTUM CHROMODYNAMICS; MATRIX ELEMENTS; CONFIGURATION MIXING; GLUONS; CALCULATION METHODS; LATTICE FIELD THEORY; QUANTUM OPERATORS