Light meson mass dependence of the positive parity heavy-strange mesons

Abstract

We calculate the masses of the resonances D_{s0}^*(2317) and D_{s1}(2460) as well as their bottom partners as bound states of a kaon and a D^*- and B^*-meson, respectively, in unitarized chiral perturbation theory at next-to-leading order. After fixing the parameters in the D_{s0}^*(2317) channel, the calculated mass for the D_{s1}(2460) is found in excellent agreement with experiment. The masses for the analogous states with a bottom quark are predicted to be M_{B^*_{s0}}=(5696\pm 40) MeV and M_{B_{s1}}=(5742\pm 40) MeV in reasonable agreement with previous analyses. In particular, we predict M_{B_{s1}}-M_{B_{s0}^*}=46\pm 1 MeV. We also explore the dependence of the states on the pion and kaon masses. We argue that the kaon mass dependence of a kaonic bound state should be almost linear with slope about unity. Such a dependence is specific to the assumed molecular nature of the states. We suggest to extract the kaon mass dependence of these states from lattice QCD calculations.

10 pages

References in corpus (13)

• Dynamically Generated Open and Hidden Charm Meson Systems
• Dynamically generated 0^+ heavy mesons in a heavy chiral unitary approach
• Strong and radiative decays of the Ds0*(2317) meson in the DK-molecule picture
• Dynamically generated 1^+ heavy mesons
• Axial Resonances in the Open and Hidden Charm Sectors
• Quark mass dependence of the rho and sigma from dispersion relations and Chiral Perturbation Theory
• New Hadron States
• Radiative and isospin-violating decays of Ds mesons in the hadrogenesis conjecture
• Subleading contributions to the width of the D_{s0}*(2317)
• Implications of heavy quark spin symmetry on heavy meson hadronic molecules
• Two-photon decays of hadronic molecules
• Structure of the $(0^{+},1^{+})$ mesons $B_{s0}$ and $B_{s1}$, and the strong coupling constants $g_{B_{s0}BK}$ and $g_{B_{s1}{B}^{\ast }K}$
• Reanalysis of the (0^+,1^+) states B_{s0} and B_{s1} with QCD sum rules

Cited by in corpus (25)

• Chiral perturbation theory for heavy hadrons and chiral effective field theory for heavy hadronic molecules
• Masses and decay constants of the $D_{s0}^{\ast }(2317)$ and $D_{s1}(2460)$ from $N_f=2$ lattice QCD close to the physical point
• Towards a theory of hadron resonances
• Two-pole structures in QCD: Facts, not fantasy!
• Strong and radiative decays of the $D_{s0}^{\ast }(2317)$ and $D_{s1}(2460)$
• Novel coupled channel framework connecting quark model and lattice QCD: an investigation on near-threshold $D_s$ states
• More kaonic bound states and a comprehensive interpretation of the D_{sJ} states
• Pseudocalar meson and vector meson interactions and dynamically generated axial-vector mesons
• Threshold effects in P-wave bottom-strange mesons
• Exotic Tetraquark states with two $\bar{b}$-quarks and $J^P=0^{+}$ and $1^{+}$ $B_s$ states in a nonperturbatively-tuned Lattice NRQCD setup
• Update on strong and radiative decays of the $D_{s0}^{\ast }(2317)$ and $D_{s1}(2460)$ and their bottom cousins
• Is the newly reported $X(5568)$ a $B\bar{K}$ molecular state?
• Aspects of the low-energy constants in the chiral Lagrangian for charmed mesons
• Near Mass Degeneracy in the Scalar Meson Sector: Implications for $B_{(s)0}^{\ast }$ and $B_{(s)1}^{\prime }$ Mesons
• Light quark mass dependence in heavy quarkonium physics
• $B_s\pi$--$B\bar{K}$ interactions in finite volume and the $X(5568)$
• Production of charm-strange hadronic molecules at the LHC
• Bound states on the lattice with partially twisted boundary conditions
• $D_{s0}^{\ast \pm }(2317)$ and $KD$ scattering from $B_s^0$ decay
• The investigations of the $P$-wave $B_s$ states combining quark model and lattice QCD in the coupled channel framework
• Productions of $D_{s0}^{\ast }(2317)$ and $D_{s1}(2460)$ in $B_{(s)}$ and ${\Lambda }_b({\Xi }_b)$ decays
• Masses and radiative decay widths of the $D_{s0}^{\ast }(2317)$ and $D_{s1}^{\prime }(2460)$ and their bottom analogs
• Exploring S-Wave Threshold Effects in QCD: A Heavy-Light Approach
• Extraction of nonperturbative parameters for $D^{(\ast )}$ mesons from lattice data
• Analysis of the hadronic molecules $DK$, $D^{\ast }K$, $D{K}^{\ast }$ and their bottom analogs with QCD sum rules