V-A hadronic tau decays : a laboratory for the QCD vacuum

Abstract

ALEPH/OPAL data on the V-A spectral functions from hadronic tau decays are used in connection with a set of Laplace transform sum rules (LSR) for fixing the size of the QCD vacuum condensates up to dimension 18. Our results favour the ones from large-N_c QCD within the Minimal Hadronic Approximation (MHA) and show a violation of about a factor 2-5 of the vacuum saturation estimate of the dimension-six to -ten condensates. We scrutinize the different determinations of the QCD vacuum condensates using tau-decays data. After revisiting some of the existing results, we present coherent values of the condensates from different methods.

Version to appear in Phys. Lett. B

References in corpus (1)

• Chiral Condensates, Q_7 and Q_8 Matrix Elements and Large-N_c QCD

Cited by in corpus (73)

• New Charmonium States in QCD Sum Rules: a Concise Review
• Precision Tau Physics
• Can the X(3872) be a 1^{++} four-quark state?
• QCD sum rules study of $QQ-\bar{u}\bar{d}$ mesons
• QCD Sum Rules Approach to the $X,Y$ and $Z$ States
• Power corrections to alpha_s(M_τ),|V_{us}| and m_s
• QCD Sum Rules for the X(3872) as a mixed molecule-charmoniun state
• $Z_c^{+}(3900)$ decay width in QCD sum rules
• Geometric approach to condensates in holographic QCD
• Gluon condensates and c, b quark masses from quarkonia ratios of moments
• A Rational Approach to Resonance Saturation in large-Nc QCD
• Unraveling duality violations in hadronic tau decays
• A QCD sum rule calculation for the Y(4140) narrow structure
• Erratum: QCD sum rules study of the $J^{PC}=1^{--}$ charmonium $Y$ mesons
• QCD sum rules study of the $J^{PC}=1^{--}$ charmonium $Y$ mesons
• QCD sum rules study of the meson Z^+(4430)
• A fresh look into m_{c,b} and precise f_{D_(s),B_(s)} from heavy-light QCD spectral sum rules
• Modification of the B Meson Mass in a Magnetic Field from QCD Sum Rules
• Possible duality violations in tau decay and their impact on the determination of alpha_s
• XYZ-like Spectra from Laplace Sum Rule at N2LO in the Chiral Limit
• Relation between $T_{cc,bb}$ and $X_{c,b}$ from QCD
• QCD vacuum condensates from tau-lepton decay data
• The meson $Z^{+}(4430)$ as a tetraquark state
• On the nature of the X(3872) from QCD
• Pinched weights and Duality Violation in QCD Sum Rules: a critical analysis
• Tests of non-standard electroweak couplings of right-handed quarks
• Violation of Quark-Hadron Duality and Spectral Chiral Moments in QCD
• QCD sum rule calculation for the charmonium-like structures in the J/psi phi and J/psi omega invariant mass spectra
• Can the ${\pi }^{+}{\chi }_{c1}$ resonance structures be $D^{\ast }{\bar{D}}^{\ast }$ and $D_1\bar{D}$ molecules?
• A QCD sum rule study for a charged bottom-strange scalar meson
• Updated determination of chiral couplings and vacuum condensates from hadronic tau decay data
• Chiral condensates from tau decay: a critical reappraisal
• Predicition for the decay width of a charged state near the $D_s{\bar{D}}^{\ast }/D_s^{\ast }\bar{D}$ threshold
• Improved light quark masses from pseudoscalar sum rules
• Nature of the X(5568) : a critical Laplace sum rule analysis at N2LO
• Radiative decay of the X(3872) as a mixed molecule-charmonium state in QCD Sum Rules
• Anomalous $A{V}^{\ast }V$ vertex function in the soft-wall holographic model of QCD
• Exotic $1^{--}$ States in QCD Sum Rules
• Operator Product Expansion with analytic QCD in tau decay physics
• Relating $D^{\ast }{\bar{D}}^{\ast }$ currents with $J^{\pi }=0^{+},1^{+}$ and $2^{+}$ to $Z_c$ states
• SVZ + 1/q2 expansion versus some QCD holographic Models
• Low-energy constants and condensates from the tau hadronic spectral functions
• QCD Sum Rules for the production of the X(3872) as a mixed molecule-charmonium state in B meson decay
• Determination of QCD condensates from tau-decay data
• Revisiting the Pion Leading-Twist Distribution Amplitude within the QCD Background Field Theory
• The B_{s0} meson and the B_{s0}B K coupling from QCD sum rules
• Exotic B_c-like molecules in QCD Sum Rules
• XYZ-SU3 Breakings from Laplace Sum Rules at Higher Orders
• Y(4260) as a mixed charmonium-tetraquark state
• Spectral Continuity in Dense QCD
• 1-- and 0++ heavy four-quark and molecule states in QCD
• Revisiting f_B and m_b(m_b) from HQET spectral sum rules
• QCD Description of Hadronic Tau Decays
• A QCD sum rule study of the light scalar mesons
• Can the X(4350) narrow structure be a $1^{-+}$ exotic state?
• Predicting the existence of a 2.9 GeV $D{f}_0(980)$ molecular state
• QCD condensates of dimension D=6 and D=8 from hadronic tau-decays
• Relations between vacuum condensates and low energy parameters from a rational approach
• Weinberg like sum rules revisited
• Mass of $1^{-+}$ four-quark--hybrid mixed states
• Exploring the $D^{\ast }\rho$ system within QCD sum rules
• Understanding close-lying exotic charmonia states within QCD sum rules
• Perturbative QCD in acceptable schemes with holomorphic coupling
• QCD Sum Rule Study for a Possible Charmed Pentaquark Θc(3250)
• QCD sum rule study on the $f_0(980)$ structure as a pure $K\bar{K}$ bound state
• The neural network approach to parton distribution functions
• 1-- and 0++ Four-Quarks and Molecules from QCD Spectral Sum Rules
• Isospin symmetry breaking and the neutron-proton mass difference
• QCD parameters and SM-high precision from $e^{+}{e}^{-}$ to Hadrons: Updated
• Effects of bulk symmetry breaking on AdS/QCD predictions
• Contribution from Duality Violations to the theoretical error on alpha_s
• Estimate of the systematic error in tau decay due to duality violations
• Duality violation in QCD Sum Rules with the LR correlator