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Published January 1, 2013 | Version v1
Journal article Open

Vector and axial-vector couplings of D and D* mesons in 2+1 flavor lattice QCD

Creators

  • 1. Ozyegin Univ, Lab Fundamental Res, TR-34794 Istanbul, Turkey
  • 2. Tokyo Inst Technol, Dept Phys, Meguro Ku, Tokyo 1528551, Japan
  • 3. Middle E Tech Univ, Dept Phys, TR-06531 Ankara, Turkey
  • 4. Gunma Natl Coll Technol, Gunma 3718530, Japan

Description

Using the axial-vector coupling and the electromagnetic form factors of the D and D* mesons in 2 + 1 flavor lattice QCD, we compute the D*D pi, DD rho and D*D*rho coupling constants, which play an important role in describing the charm hadron interactions in terms of meson-exchange models. We also extract the charge radii of D and D* mesons and determine the contributions of the light and charm quarks separately. (c) 2012 Elsevier B.V. All rights reserved.

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