D Wave Heavy Mesons

Abstract

We first extract the binding energy $\bar{\Lambda }$ and decay constants of the D wave heavy meson doublets $(1^{-},2^{-})$ and $(2^{-},3^{-})$ with QCD sum rule in the leading order of heavy quark effective theory. Then we study their pionic $(\pi ,K,\eta )$ couplings using the light cone sum rule, from which the parameter $\bar{\Lambda }$ can also be extracted. We then calculate the pionic decay widths of the strange/non-strange D wave heavy $D/B$ mesons and discuss the possible candidates for the D wave charm-strange mesons. Further experimental information, such as the ratio between $D_s\eta$ and $DK$ modes, will be very useful to distinguish various assignments for $D_{sJ}(2860,2715)$.

10 pages, 3 figuers, 3 tables. Some descriptions changed, typos corrected. Published version in PRD

Cited by in corpus (3)

• New Hadron States
• Strong decays of heavy-light mesons in a chiral quark model
• Identifying $D_{sJ}(2700)$ through its decay modes