Understanding the $D_{sJ}^{+}(2317)$ and $D_{sJ}^{+}(2460)$ with Sum Rules in HQET

Abstract

In the framework of heavy quark effective theory we use QCD sum rules to calculate the masses of the $\bar{c}s$ $(0^{+},1^{+})$ and $(1^{+},2^{+})$ excited states. The results are consistent with that the states $D_{sJ}(2317)$ and $D_{sJ}(2460)$ observed by BABAR and CLEO are the $0^{+}$ and $1^{+}$ states in the $j_l={\frac{1}{2}}^{+}$ doublet.

References in corpus (22)

• Heavy Quark Symmetry
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• Observed D_s(2317) and tentative D(2100-2300) as the charmed cousins of the light scalar nonet
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• Extended NJL Model for light and heavy mesons without q-qbar thresholds
• Understanding $D_{sJ}(2317)$
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• QCD sum rule calculation for P-wave bottom baryons
• Disentangling two- and four-quark state pictures of the charmed scalar mesons
• Constructing $J/\psi$ family with updated data of charmoniumlike $Y$ states
• Pionic Decays of $D_{sj}(2317)$, $D_{sj}(2460)$ and $B_{sj}(5718)$, $B_{sj}(5765)$
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• $D_{sJ}(2860)$ From The Semileptonic Decays Of $B_s$ Mesons
• Unified covariant treatment of hyperfine splitting for heavy and light mesons
• Production of $P-$wave charmed and charmed-strange mesons in pion and kaon induced reactions
• Theoretical investigation of the molecular nature of $D_{s0}^{\ast }(2317)$ and $D_{s1}(2460)$ and the possibility of observing the $D\bar{D}K$ bound state $K_{c\bar{c}}(4180)$ in inclusive $e^{+}{e}^{-}\to c\bar{c}$ collisions
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• Discovery of $T_{c\bar{s}0}^a(2900{)}^{0,++}$ implies new charmed-strange pentaquark system
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