Covariant Light-Front Approach for s-wave and p-wave Mesons: Its Application to Decay Constants and Form Factors

Abstract

We study the decay constants and form factors of the ground-state s-wave and low-lying p-wave mesons within a covariant light-front approach. Numerical results of the form factors for transitions between a heavy pseudoscalar meson and an s-wave or p-wave meson and their momentum dependence are presented in detail. In particular, form factors for heavy-to-light and B to D** transitions, where D** denotes generically a p-wave charmed meson, are compared with other model calculations. The experimental measurements of the decays B^- to D** pi^- and B to D D**_s are employed to test the decay constants of D**_s and the B to D** transition form factors. The heavy quark limit behavior of the decay constants and form factors is examined and it is found that the requirement of heavy quark symmetry is satisfied. The universal Isgur-Wise (IW) functions, one for s-wave to s-wave and two for s-wave to p-wave transitions, are obtained. The values of IW functions at zero recoil and their slope parameters can be used to test the Bjorken and Uraltsev sum rules.

59 pages, 6 figures. Version to appear in Phys. Rev. D. Changes are: (i) D_s to phi transition form factors are discussed and compared with the recent FOCUS measurements and (ii) zero mode effects are clarified

References in corpus (10)

• Observation of a Narrow Meson Decaying to Ds+pi0 at a Mass of 2.32 GeV/c^2
• Observation of a Narrow Resonance of Mass 2.46 GeV/c^2 Decaying to D_s^*+ pi^0 and Confirmation of the D_sJ^* (2317) State
• Observation of the DsJ(2317) and DsJ(2457) in B decays
• Testing the Nature of the D_{sJ}^*(2317)^+ and D_{sJ}(2463)^+ States Using Radiative Transitions
• Observation of a Narrow Meson Decaying to Ds pi0 gamma at a Mass of 2.458 GeV/c^2
• Hadronic Charmed Meson Decays Involving Axial Vector Mesons
• Transition Form Factors between Pseudoscalar and Vector Mesons in Light-Front Dynamics
• Hadronic B Decays Involving Even Parity Charmed Mesons
• Radiative Scalar Meson Decays in the Light-Front Quark Model
• Measurement of B0->D_s(*)+D*- Branching Fractions and B0->D_s*+D*- Polarization with a Partial Reconstruction Technique

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• Probing New Physics with $\bar{B}\to \rho (770){\ell }^{-}{\bar{\nu }}_{\ell }$ and $\bar{B}\to a_1(1260){\ell }^{-}{\bar{\nu }}_{\ell }$
• $|V_{ub}|$ and $B\to {\eta }^{{(}^{\prime })}$ Form Factors in Covariant Light Front Approach
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• The decays $\bar{B}\to D^{\ast \ast }\pi$ and the Isgur-Wise functions ${\tau }_{1/2}(w)$, ${\tau }_{3/2}(w)$
• Productions of $K_0^{\ast }(1430)$ and $K_1$ in B decays
• The Light-Front Zero-Mode Contribution to the Good Current in Weak Transition
• Diquarks and the Semi-Leptonic Decay of ${\Lambda }_b$ in the Hybrid Scheme
• A comprehensive study on the semileptonic decay of heavy flavor mesons
• Production of P-wave Charmed Mesons in Hadronic B Decays
• Study of Decay Modes B -->K_0^*(1430) phi
• Anomalous CP-Violation in B_s-Bbar_s Mixing Due to a Light Spin-One Particle
• Two-particle twist-3 distribution amplitudes of the pion and kaon in the light-front quark model
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• Factorization and polarization in two charmed-meson B decays
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• Pseudoscalar mesons with symmetric bound state vertex functions on the light front
• Axial-Vector Emitting Weak Nonleptonic Deacys of ${\Omega }_c^0$ Baryon
• Self-consistent light-front quark model analysis of $B\to D\ell {\nu }_{\ell }$ transition form factors
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• Role of the newly measured $B\to KD\bar{D}$ process to establish ${\chi }_{c0}(2P)$ state
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• Flavor violating processes with sgoldstino pair production
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• Long-Distance Contribution to ΔΓs/Γs of the $B_s-{\bar{B}}_s$ System
• $a_1(1260)$-meson longitudinal twist-2 distribution amplitude and the $D\to a_1(1260){\ell }^{+}{\nu }_{\ell }$ decay processes
• The weak decays of ${\Xi }_c^{{(}^{\prime })}\to \Xi$ in the light-front quark model
• Baryons in the light-front approach: The three-quark picture
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• Study of $B_c$$\to$$J/\psi V$ and $B_c^{\ast }$$\to$${\eta }_{c}V$ decays within the QCD factorization
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• Determining CP violation angle $\gamma$ with B decays into a scalar/tensor meson
• Restudy of the color-allowed two-body nonleptonic decay of bottom baryons ${\Xi }_b$ and ${\Omega }_b$ supported by hadron spectroscopy
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• Branching Fractions and Direct CP Asymmetries of ${\bar{B}}_s^0\to K^0{h}^{+}{h}^{\prime -}(h^{(\prime )}=K,\pi )$ Decays
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• Study of the axial-vector and tensor resonant contributions to the $D\to VP{\ell }^{+}{\nu }_{\ell }$ decays based on SU(3) flavor analysis
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• A phenomenological estimate of rescattering effects in $B_s\to K^{\ast 0}{\bar{K}}^{\ast 0}$
• Relativistic Covariance of Light-Front Few-Body Systems in Hadron Physics
• Branching ratios and $CP$ asymmetries of $B\to {\chi }_{c1}K(\pi )$ decays
• Exclusive Semileptonic Decays of Bc Meson
• Determining the effective Wilson coefficient $a_2$ in terms of $BR(B_s\to {\eta }_c\varphi )$ and evaluating $BR(B_s\to {\eta }_c{f}_0(980))$
• Tensor mesons produced in tau lepton decays
• Semileptonic B decays into even parity charmed mesons
• $B_c$ to $A$ Transition Form Factors and Semileptonic Decays in Self-consistent Covariant Light-front Approach
• Semileptonic and nonleptonic decays of $D$ into tensor mesons with light-cone sum rule
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• Revealing treacherous points for successful light-front phenomenological applications
• The FSI contribution to the observed $B_s$ decays into $K^{+}{K}^{-}$ and ${\pi }^{+}{K}^{-}$
• Probing $D_{s0}^{\ast }(2317)$ in the decays of $B$ to two charmed mesons
• First Measurement of the Decay Dynamics in the Semileptonic Transition of the $D^{+(0)}$ into the Axial-vector Meson ${\bar{K}}_1(1270)$
• Nonleptonic charmless two-body $B\to AT$ decays
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• Form factors of $B_{(s)}$ to light scalar mesons with the $B$-meson LCSR
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• Polarized and Unpolarized Lepton Pair Forward-backward Asymmetries in $\overline{B}\to {\overline{K}}_0^{\ast }(1430){\ell }^{+}{\ell }^{-}$ and $\overline{B}\to \overline{K}{\ell }^{+}{\ell }^{-}$ Decays in Two Higgs Doublet Model
• The $B^{+(0)}\to {\bar{D}}^{0(-)}{D}_{s0}^{\ast }(2317{)}^{+}$ decays and the molecular structure of $D_{s0}^{\ast }(2317)$
• Estimating the branching fraction for $B^0\to \psi (2S){\pi }^0$ decay
• Rescattering-induced $D\to SS$ weak decays
• Flavor SU(3) analysis of the charmless semileptonic $B\to PV{\ell }^{+}{\nu }_{\ell }$ decays
• Baryons and baryoniums in the perspective of QCD sum rules
• Mixing angle of $K_1$ axial vector mesons
• Study of rare semileptonic $B_c^{+}\to D^{+}\nu \bar{\nu }$ decay in the light-cone quark model
• Radiative transitions among the vector and scalar heavy quarkonium states with covariant light-front quark model
• Chirality structure of vector like new physics operators in charged current transitions
• Constraining Charming Penguins in Charmless B Decays
• Study of $B_c\to J/\psi (a_1(1260)$, $b_1(1235)$, $a_2(1320)$, $K_2^{\ast }(1430))$ decay with a perturbative QCD approach