Decay widths of B_1 and B^*_2 up to the order of O(1/m_Q) in HQET

Abstract

We first improve the previous results on the masses of the doublets (0^+,1^+) and (1^+,2^+) with QCD sum rules up to the order of O(1/m_Q) in the framework of HQET and calculate the O(1/m_Q) correction to the decay constants f_{-,1/2} and f_{+,3/2}. With the mass matrix of the two 1^+ states, we obtain the mixing angle for the two states and the interpolating currents, which couple to only one of the two eigenstates up to the order of O(1/m_Q). Using these results we derive the light-cone sum rules for the amplitudes of the pionic decay of B_1 and B_2^* up to the order of O(1/m_Q) in HQET. The O(1/m_Q) correction to the decay amplitude of B_1 and B_2^* are found to be small. When applied to D_1 and D_2^* the theoretical results are in good agreement with experimental data though the theoretical uncertainty is sizeable for D system.

Final version to appear in Phys. Rev. D, four references are added, typos in the references are corrected

References in corpus (3)

• Operator product expansion in static-quark effective field theory: large perturbative correction
• Order (1/m_Q) Corrections to Masses of Excited Heavy Mesons From QCD Sum Rules
• Couplings of pions with heavy baryons from light-cone QCD sum rules in the leading order of HQET

Cited by in corpus (30)

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• Pionic Decays of $D_{sj}(2317)$, $D_{sj}(2460)$ and $B_{sj}(5718)$, $B_{sj}(5765)$
• B_{s1}(5830) and B_{s2}^*(5840)
• Strong decays of newly observed $D_{sJ}$ states in a constituent quark model with effective Lagrangians
• Strong and electromagnetic decays of p-wave heavy baryons ${\Lambda }_{c1},{\Lambda }_{c1}^{\ast }$
• Radiative decays of heavy hadrons from light cone QCD sum rules in the leading order of HQET
• $D_{s0}(2317)$ as a tetraquark state with QCD sum rules in heavy quark limit
• Light-cone QCD sum rules for the semileptonic decay Lambda_b --> p lepton anti-neutrino
• Exclusive semileptonic B_s decays to excited D_s mesons: Search of D_{sJ}(2317) and D_{sJ}(2460)
• The D-wave heavy-light mesons from QCD sum rules
• Precise measurements of the properties of the B_1(5721)^(0,+) and B_2*(5747)^(0,+) states and observation of B^(+,0) pi^(-,+) mass structures
• The effect of $B\pi$ continuum in the QCD sum rules for the $(0^{+},1^{+})$ heavy meson doublet in HQET
• Strong decay of the heavy tensor mesons with QCD sum rules
• The masses and decay widths of heavy hybrid mesons
• The strong $\rho NN$ coupling derived from QCD
• Subleading Isgur-Wise form factors and O(1/m_Q) corrections to the semileptonic decays B->D_1 l\barνand B->D_2^* l\barν
• The Strong Decays of $P-$wave Mixing Heavy-Light $1^{+}$ States
• Analysis of hadronic coupling constants $G_{B_c^{\ast }{B}_c{\rm Y}}$, $G_{B_c^{\ast }{B}_{c}J/\psi }$, $G_{B_c{B}_c{\rm Y}}$ and $G_{B_c{B}_{c}J/\psi }$ with QCD sum rules
• Rho decay widths of excited heavy mesons from light-cone QCD sum rules in the leading order of HQET
• The $\pi NN$ and $\pi NN(1535)$ couplings in QCD
• The Vector Meson And Heavy Meson Strong Interaction
• The strong vertices of charmed mesons $D$, $D^{\ast }$ and charmonia $J/\psi$, ${\eta }_c$
• Light-Cone HQET Sum Rules for the B --> pi Transition with 1/m_Q Corrections
• Strong decays of $2^{+}$ charm and charm-strange mesons
• Strong and Electromagnetic Decays of The $D$-wave Heavy Mesons
• The strong vertices of bottom mesons $B$, $B^{\ast }$ and bottomonia ${\rm Y}$, ${\eta }_b$
• The partial waves of $B_2^{\ast }(5747)$ and their contributions in strong decays
• $\rho$ Meson Decays of Heavy Hybrid Mesons