Hadronic decay of a scalar B meson from the lattice

Abstract

We explore the transitions B$(0^{+})$ to B $\pi$ and B${}_s(0^{+})$ to B K from lattice QCD with $N_f=2$ flavours of sea quark, using the static approximation for the heavy quark. We evaluate the effective coupling constants, predicting a B$(0^{+})$ to B $\pi$ width of around 160 MeV. Our result for the coupling strength adds to the evidence that the B${}_s(0^{+})$ meson is not predominantly a molecular state (BK).

arXiv comment10 pages LATEX

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Cited by in corpus (19)

• The New Heavy Mesons: A Status Report
• BB interactions with static bottom quarks from Lattice QCD
• Predicting positive parity $B_s$ mesons from lattice QCD
• Analysis of the vertices $D^{\ast }{D}_{s}K$, $D_s^{\ast }DK$,$D_0{D}_{s}K$ and $D_{s0}DK$ with the light-cone QCD sum rules
• Even- and Odd-Parity Charmed Meson Masses in Heavy Hadron Chiral Perturbation Theory
• Excitations of single-beauty hadrons
• Chiral loop corrections to strong decays of positive and negative parity charmed mesons
• Structure of the $D_{s0}(2317)$ and the strong coupling constant $g_{D_{s0}DK}$ with the light-cone QCD sum rules
• The continuum limit of the static-light meson spectrum
• Determination of Delta resonance parameters from lattice QCD
• Study of decuplet baryon resonances from lattice QCD
• Decay constants of P-wave heavy-light mesons from unquenched lattice QCD
• Pion couplings to the scalar B meson
• Hadronic decays from the lattice
• Chiral loop corrections to weak decays of B mesons to positive and negative parity charmed mesons
• Decay properties of light $1^{-+}$ hybrids
• Pionic couplings to the lowest heavy-light mesons of positive and negative parity
• Cartan's Supersymmetry and Weak and Electromagnetic Interactions
• Role of Resonances in Heavy Meson Processes within Standard Model and Beyond