Decay constants of pseudoscalar and vector mesons with improved holographic wavefunction

Abstract

We calculate the decay constants of light and heavy-light pseudoscalar and vector mesons with improved soft-wall holographic wavefuntions, which take into account the effects of both quark masses and dynamical spins. We find that the predicted decay constants, especially for the ratio $f_V/f_P$, based on light-front holographic QCD, can be significantly improved, once the dynamical spin effects are taken into account by introducing the helicity-dependent wavefunctions. We also perform detailed ${\chi }^2$ analyses for the holographic parameters ({\it i.e.} the mass-scale parameter $\kappa$ and the quark masses), by confronting our predictions with the data for the charged-meson decay constants and the meson spectra. The fitted values for these parameters are generally in agreement with those obtained by fitting to the Regge trajectories. At the same time, most of our results for the decay constants and their ratios agree with the data as well as the predictions based on lattice QCD and QCD sum rule approaches, with only a few exceptions observed.

arXiv comment27 pages, 4 figures and 3 tables; typos corrected, references added, final version published in Chinese Physics C

References in corpus (74)

• Gauge Theory Correlators from Non-Critical String Theory
• The Large N Limit of Superconformal Field Theories and Supergravity
• Quantum Chromodynamics and Other Field Theories on the Light Cone
• Heavy Quark Symmetry
• Linear Confinement and AdS/QCD
• Hard Scattering and Gauge/String Duality
• B_{d,s}->rho, omega, K*, phi Decay Form Factors from Light-Cone Sum Rules Revisited
• Light-Front Holographic QCD and Emerging Confinement
• Hadronic Spectra and Light-Front Wavefunctions in Holographic QCD
• Light-Front Dynamics and AdS/QCD Correspondence: The Pion Form Factor in the Space- and Time-Like Regions
• Hadronic Spectrum of a Holographic Dual of QCD
• Covariant Light-Front Approach for s-wave and p-wave Mesons: Its Application to Decay Constants and Form Factors
• Generalized parton distributions in impact parameter space
• Exclusive Semileptonic and Rare B-Meson Decays in QCD
• Light-Front Holography: A First Approximation to QCD
• The QCD Running Coupling
• Mass spectra and Regge trajectories of light mesons in the relativistic quark model
• The $\rho$ Meson Light-Cone Distribution Amplitudes of Leading Twist Revisited
• B->V gamma Beyond QCD Factorisation
• Nonperturbative QCD Coupling and its $\beta$ function from Light-Front Holography
• Light and heavy mesons in a soft-wall holographic approach
• Light-Front Dynamics and AdS/QCD Correspondence: Gravitational Form Factors of Composite Hadrons
• Mixing angles and electromagnetic properties of ground state pseudoscalar and vector meson nonets in the light-cone quark model
• B-meson decay constants: a more complete picture from full lattice QCD
• An AdS/QCD holographic wavefunction for the rho meson and diffractive rho meson electroproduction
• The Quark Model and $b$ Baryons
• Evolved QCD predictions for the meson-photon transition form factors
• Distribution amplitudes and decay constants for $(\pi ,K,\rho ,K^{\ast })$ mesons in light-front quark model
• Exact Light-Cone Wavefunction Representation of Matrix Elements of Electroweak Current
• Meson wave function from holographic models
• Baryon Spectrum from Superconformal Quantum Mechanics and its Light-Front Holographic Embedding
• Superconformal Baryon-Meson Symmetry and Light-Front Holographic QCD
• Non-Leptonic Weak Decays of B Mesons
• |V_td/V_ts| from B-> V gamma
• The Vector Meson Form Factor Analysis in Light-Front Dynamics
• Pairs in the light-front and covariance
• Consistent treatment of spin-1 mesons in the light-front formalism
• Exclusive Radiative Decays of W and Z Bosons in QCD Factorization
• Meson masses and decay constants from unquenched lattice QCD
• Light-Front Holography and Gauge/Gravity Duality: The Light Meson and Baryon Spectra
• Universal Effective Hadron Dynamics from Superconformal Algebra
• Nonvanishing zero modes in the light-front current
• The restriction on the strong coupling constant in the IR region from the 1D-1P splitting in bottomonium
• Decay constants of the charmed vector mesons $D^{\ast }$ and $D_s^{\ast }$ from QCD sum rules
• Towards the Gravity Dual of Quarkonium in the Strongly Coupled QCD Plasma
• Systematics of heavy quarkonia from Regge trajectories on $(n,M^2)$ and $(M^2,J)$ planes
• Analyses of decay constants and light-cone distribution amplitudes for s-wave heavy meson
• D-meson decay constants and a check of factorization in non-leptonic B-decays
• On the Interface between Perturbative and Nonperturbative QCD
• Transition Form Factors between Pseudoscalar and Vector Mesons in Light-Front Dynamics
• Masses and decay constants of D(s)* and B(s)* mesons with Nf = 2 + 1 + 1 twisted mass fermions
• Decay constants in soft wall AdS/QCD revisited
• Masses and decay constants of $D_{(s)}^{\ast }$ and $B_{(s)}^{\ast }$ mesons in Lattice QCD with $N_f=2+1+1$ twisted-mass fermions
• Diffractive $\rho$ and $\varphi$ production at HERA using an AdS/QCD holographic light-front meson wavefunction
• Self-consistent covariant description of vector meson decay constants and chirality-even quark-antiquark distribution amplitudes up to twist-3 in the light-front quark model
• Supersymmetry Across the Light and Heavy-Light Hadronic Spectrum II
• The CKM Parameters
• The $\rho$-meson light-cone distribution amplitudes from lattice QCD
• Predicting $B->\rho \gamma$ and $B_s->\rho \gamma$ using holographic AdS/QCD Distribution Amplitudes for the $\rho$ meson
• Predicting the isospin asymmetry in $B->K\ast \gamma$ using holographic AdS/QCD Distribution Amplitudes for the K*
• Spin effects in the pion holographic light-front wavefunction
• Meson/Baryon/Tetraquark Supersymmetry from Superconformal Algebra and Light-Front Holography
• Gauge/Gravity Duality and Hadron Physics at the Light-Front
• Extracting the Distribution Amplitudes of the rho meson from the Color Glass Condensate
• Predicting B->K* form factors in light-cone QCD
• New Quark Relations for Hadron Masses and Magnetic Moments - A Challenge for Explanation from QCD
• The isospin asymmetry in $B\to K^{\ast }{\mu }^{+}{\mu }^{-}$ using AdS/QCD
• Predicting the $B->\rho$ form factors using AdS/QCD Distribution Amplitudes for the $\rho$ meson
• Light-front holographic distribution amplitudes of pseudoscalar mesons and their application to $B$-meson decays
• Light-front potential for heavy quarkonia constrained by the holographic soft-wall model
• Meson distribution amplitudes in holographic models
• S wave meson spectra from the light cone harmonic oscillator model with a consistent hyperfine interaction
• Relativistic Covariance of Light-Front Few-Body Systems in Hadron Physics
• Some Hadronic Properties from Light Front Holography

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