CHIRAL LOOP CONTRIBUTION TO D-]K-ASTERISK-LV

Light vector mesons are included in the heavy meson chiral Lagrangian in the leading order in momentum expansion. Tree-level form factors in D+ --> K0*BAR e+nu(e) are found at the order of O(k1), and the coefficients of 1/m(Q) terms are fixed by requiring reparametrization invariance of the heavy meson chiral Lagrangian and the weak current. Then, chiral loop contributions [O(k2)] to D --> K*lnu are considered. The imaginary part of the Kpi loop contribution is finite and therefore unambiguously calculable, leading to the lower bounds on the form factors and the partial decay rate in D+ --> K0*BAR e+nu(e). Under a reasonable assumption, one finds g2 < 0.5 is preferred where g is the D*Dpi coupling.
Publisher
Amer Physical Soc
Issue Date
1993
Language
ENG
Keywords

REALIZATION; DECAYS; SYMMETRY; MESONS

Citation

PHYSICAL REVIEW D, v.47, no.5, pp.1964 - 1972

ISSN
0556-2821
DOI
10.1103/PhysRevD.47.1964
URI
http://hdl.handle.net/10203/57290
Appears in Collection
RIMS Journal Papers
Files in This Item
There are no files associated with this item.
  • Hit : 100
  • Download : 0
  • Cited 0 times in thomson ci
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡClick to seewebofscience_button
⊙ Cited 9 items in WoSClick to see citing articles inrecords_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0