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

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Can K. U., ERKOL G., Oka M., ÖZPİNECİ A., Takahashi T. T.

PHYSICS LETTERS B, cilt.719, ss.103-109, 2013 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 719
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1016/j.physletb.2012.12.050
  • Dergi Adı: PHYSICS LETTERS B
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.103-109
  • Anahtar Kelimeler: Charm mesons, Coupling constants, Lattice QCD, HEAVY MESONS, CHARM PRODUCTION, FORM-FACTORS, B-PI, LIGHT, PIONS
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

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.