QCD sum rules for the production of the X(3872) as a mixed molecule-charmonium state in B meson decay

@article{Zanetti2011QCDSR,
  title={QCD sum rules for the production of the X(3872) as a mixed molecule-charmonium state in B meson decay},
  author={C. M. Zanetti and Marina Nielsen and Ricardo D'Elia Matheus},
  journal={Physics Letters B},
  year={2011},
  volume={702},
  pages={359-363}
}
Abstract We use QCD sum rules to calculate the branching ratio for the production of the meson X ( 3872 ) in the decay B → X ( 3872 ) K , assumed to be a mixture between charmonium and exotic molecular [ c q ¯ ] [ q c ¯ ] states with J PC = 1 + + . We find that in a small range for the values of the mixing angle, 5 ° ⩽ θ ⩽ 13 ° , we get the branching ratio B ( B → X K ) = ( 1.00 ± 0.68 ) × 10 − 5 , which is in agreement with the experimental upper limit. This result is compatible with the… 

Figures from this paper

Production of the Y (4260) state in B meson decay
Abstract We calculate the branching ratio for the production of the meson Y ( 4260 ) in the decay B − → Y ( 4260 ) K − . We use QCD sum rules approach and we consider the Y ( 4260 ) to be a mixture
Mixed Charmonium-Molecule Interpretation for the Y (3940) State
QCD sum rules are used to study the mass and the decay widths of the Y(3940) state. We assume that it can be described by a mixed charmonium-molecule scalar current with JPC = 0++. Using a mixing
QCD sum rules approach to the X, Y and Z states
In the past decade, due to the experimental observation of many charmonium-like states, there has been a revival of hadron spectroscopy. In particular, the experimental observation of charged
X(3872) and its heavy quark spin symmetry partners in QCD sum rules
X(3872) presents many surprises after its discovery more than ten years ago. Understanding its properties is crucial to understand the spectrum of possible exotic mesons. In this work, X(3872) meson
The $X(3872)$ as a charmonium state plus an extra component due to continuum coupling effects
We discuss the results of an unquenched quark model (UQM) calculation of the self energy corrections to charmonium spectrum due to the coupling to the meson-meson continuum. In our approach, the
The gDsDsϕ strong coupling constant from QCD Sum Rules
Abstract The form factors and coupling constant of the strong meson vertex D s D s ϕ were calculated within the QCD Sum Rules formalism using three point correlation functions. Mesons ϕ and D s were
Search for XYZ states in Λ b decays at the LHCb
Abstract We consider X ( 3872 ) and Y ( 4140 ) as the vector tetraquark states of X c 0 ≡ c c ¯ u u ¯ ( d d ¯ ) and c c ¯ s s ¯ , respectively. By connecting Λ b → X c 0 Λ to B − → X c 0 K − , we
Production of the Y(4260) State in B Meson Decay
We calculate the branching ratio for the production of the meson $Y(4260)$ in the decay $B^- \to Y(4260)K^-$. We use QCD sum rules approach and we consider the $Y(4260)$ to be a mixture between
Resonance Y(4660) as a vector tetraquark and its strong decay channels
The spectroscopic parameters and partial widths of the strong decay channels of the vector meson $ Y(4660)$ are calculated by treating it as a bound state of a diquark and antidiquark. The mass and
Understanding Y(4274) and X(4320) in the $J/\psi \phi$ invariant mass spectrum
In this work we study the structures near 4.3 GeV in the J/psi phi invariant mass spectra in B meson decay process B+ -> J/psi phi K+ and two photon fusion process gamma gamma -> J/psi phi. The
...
1
2
3
...

References

SHOWING 1-10 OF 74 REFERENCES
X(3872)→J/ψπ+π− and X(3872)→J/ψπ+π−π0 decay widths from QCD sum rules
Abstract New spectroscopy from the B factories, the advent of CLEO-c and the BES upgrade renewed the interest in charmonia. Among the new measurements, the state X ( 3872 ) has received special
Radiative decay of the X(3872) as a mixed molecule-charmonium state in QCD Sum Rules
We use QCD sum rules (QCDSR) to calculate the width of the radiative decay of the meson X(3872), assumed to be a mixture between charmonium and exotic molecular [cq][qc] states with J{sup PC}=1{sup
ω-ρ0 Mixing as a Possible Origin of the Hypothetical Isospin Non-Conservation in the X(3872) → π+π−J/ψ Decay
The ratio of branching fractions Br(X(3872) → γJ/ψ)/Br(X(3872) → π + π � J/ψ )i s studied by assuming that the X(3872) → π + π � J/ψ decay proceeds through the ρ 0 meson pole which is caused by the
Is X(3872) really a molecular state?
After taking into account both the pion and sigma meson exchange potential, we have performed a dynamical calculation of the D0D̄*0 system. The σ meson exchange potential is repulsive from heavy
Heavy quarkonia mass-splittings in QCD: gluon condensate, αs and 1m-expansion
Abstract New double ratios of exponential moments of different two-point functions, which are less sensitive to the heavy quark mass and to the continuum effects than the commonly used ratio of
Can the X ( 3872 ) be a 1 ++ four-quark state?
We use QCD spectral sum rules to test the nature of the meson X(3872), assumed to be an exotic four-quark (ccqq) state with J{sup PC}=1{sup ++}. For definiteness, we work with the diquark-antidiquark
Strange-quark mass from combined e+e− and τ-decay data: test of the isospin symmetry and implications on ϵ′/ϵ and mu,d
Abstract I extract the strange-quark mass using a τ -like decay sum rule for the φ -meson, and some other sum rules involving its difference with the vector component of the hadronic τ -decay. As a
QCD tests from e+e− → I = 1 hadrons data and implication on the value of αS from τ-decays
Abstract We re-examine the estimate of αs and of the QCD condensates from e+e− → I = 1 hadrons data. We conclude that e+e− at low energies gives a value of Λ compatible with the one from LEP and from
Estimate for the X(3872)->gamma J/psi decay width
The X(3872) resonance is considered as a hadronic molecule, a loosely bound state of charmed D(0) and D(*0) mesons, since its mass is very close to the D(*0)D(0) threshold. Assuming structure and
V–A hadronic tau decays: A laboratory for the QCD vacuum
Abstract ALEPH/OPAL data on the V – A spectral functions from hadronic τ decays are used in connection with a set of Laplace transform sum rules (LSR) for fixing the size of the QCD vacuum
...
1
2
3
4
5
...