Form Factors and Strong Couplings of Heavy Baryons from QCD Light-Cone Sum Rules

Abstract

We derive QCD light-cone sum rules for the hadronic matrix elements of the heavy baryon transitions to nucleon. In the correlation functions the ${\Lambda }_c,{\Sigma }_c$ and ${\Lambda }_b$ -baryons are interpolated by three-quark currents and the nucleon distribution amplitudes are used. To eliminate the contributions of negative parity heavy baryons, we combine the sum rules obtained from different kinematical structures. The results are then less sensitive to the choice of the interpolating current. We predict the ${\Lambda }_b\to p$ form factor and calculate the widths of the ${\Lambda }_b\to p\ell {\nu }_l$ and ${\Lambda }_b\to p\pi$ decays. Furthermore, we consider double dispersion relations for the same correlation functions and derive the light-cone sum rules for the ${\Lambda }_{c}N{D}^{(\ast )}$ and ${\Sigma }_{c}N{D}^{(\ast )}$ strong couplings. Their predicted values can be used in the models of charm production in $p\bar{p}$ collisions.

45 pages, 3 figures

References in corpus (11)

• Nucleon Form Factors in QCD
• Light-cone sum rules for $B\to \pi$ form factors revisited
• Observation of the Baryonic Flavor-Changing Neutral Current Decay Lambda_b -> Lambda mu+ mu-
• Future Prospects for Hadron Physics at PANDA
• Baryon Operators of Higher Twist in QCD and Nucleon Distribution Amplitudes
• Distribution Amplitudes of the Lambda_b Baryon in QCD
• How much charm can PANDA produce?
• Higher twist parton distributions from light-cone wave functions
• Strong coupling constants of light pseudoscalar mesons with heavy baryons in QCD
• The Nucleon Distribution Amplitudes and their application to nucleon form factors and the $N\to \Delta$ transition at intermediate values of $Q^2$
• Recent LHCb Results

Cited by in corpus (103)

• Observation of the rare $B_s^0\to {\mu }^{+}{\mu }^{-}$ decay from the combined analysis of CMS and LHCb data
• ${\Lambda }_b\to p{\ell }^{-}{\bar{\nu }}_{\ell }$ and ${\Lambda }_b\to {\Lambda }_c{\ell }^{-}{\bar{\nu }}_{\ell }$ form factors from lattice QCD with relativistic heavy quarks
• Studies of Nucleon Resonance Structure in Exclusive Meson Electroproduction
• Discovery Potentials of Doubly Charmed Baryons
• Form Factors for Lambda_b -> Lambda Transitions in SCET
• QCD corrections to $B\to \pi$ form factors from light-cone sum rules
• Decay properties of $P$-wave charmed baryons from light-cone QCD sum rules
• Weak Decays of Heavy Baryons in Light-Front Approach
• Perturbative Corrections to ${\Lambda }_b\to \Lambda$ Form Factors from QCD Light-Cone Sum Rules
• Nuclear-bound quarkonia and heavy-flavor hadrons
• Measurement of properties of B${}_{\mathrm{s}}^0\to {\mu }^{+}{\mu }^{-}$ decays and search for B${}^0\to {\mu }^{+}{\mu }^{-}$ with the CMS experiment
• Singly Cabibbo-suppressed hadronic decays of ${\Lambda }_c^{+}$
• Angular Analysis of the Decay ${\Lambda }_b\to \Lambda (\to N\pi ){\ell }^{+}{\ell }^{-}$
• ${\Lambda }_c\to N$ form factors from lattice QCD and phenomenology of ${\Lambda }_c\to n{\ell }^{+}{\nu }_{\ell }$ and ${\Lambda }_c\to p{\mu }^{+}{\mu }^{-}$ decays
• Deciphering the mechanism of near-threshold $J/\psi$ photoproduction
• Challenges in Semileptonic B Decays
• The masses and residues of doubly heavy spin--3/2 baryons
• Heavy-to-light baryonic form factors at large recoil
• Semileptonic decays of ${\Lambda }_b$ baryons in the relativistic quark model
• $b\to c\tau {\nu }_{\tau }$ Decays: A Catalogue to Compare, Constrain, and Correlate New Physics Effects
• Polarization effects in the cascade decay Lambda_b -> Lambda(-> p pi-) + J/psi(-> l+ l-) in the covariant confined quark model
• Heavy-to-light semileptonic decays of Lambda_b and Lambda_c baryons in the covariant confined quark model
• Direct CP violation in ${\Lambda }_b$ decays
• On lepton flavour universality in semileptonic $B_c\to {\eta }_c,J/\psi$ decays
• Nucleon Form Factors and Distribution Amplitudes in QCD
• Strong decays of $T_{c\bar{s}0}(2900{)}^{++/0}$ as a fully open-flavor tetraquark state
• How much charm can PANDA produce?
• Weak decays of doubly heavy baryons: "decay constants"
• Rare radiative charm decays within the standard model and beyond
• The semi-leptonic and non-leptonic weak decays of ${\Lambda }_b^0$
• Semileptonic decays of ${\Lambda }_c$ baryons in the relativistic quark model
• Weak Decays of Doubly Heavy Baryons: ${\mathcal{B}}_{cc}\to {\mathcal{B}}_{c}V$
• Analysis of the heavy mesons in the nuclear matter with the QCD sum rules
• Electroproduction of the $N^{\ast }(1535)$ nucleon resonance in QCD
• Search for the lepton-flavour violating decays $B_s^0\to e^{\pm }{\mu }^{\mp }$ and $B^0\to e^{\pm }{\mu }^{\mp }$
• Production of the $T_{cc}^{+}$ state in the $\gamma p\to D^{+}{\bar{T}}_{cc}^{-}{\Lambda }_c^{+}$ reaction
• ${\Lambda }_b\to p$ transition form factors in perturbative QCD
• Heavy Flavour Physics and CP Violation at LHCb: a Ten-Year Review
• Determination of the quantum numbers of ${\Sigma }_b(6097{)}^{\pm }$ via their strong decays
• The $D^{\ast }D\pi$ and $B^{\ast }B\pi$ couplings from light-cone sum rules
• Model-independent determination of the axial mass parameter in quasielastic antineutrino-nucleon scattering
• Study on the rare decays of $Y(4630)$ induced by final state interactions
• SU(3)${}_F$ Analysis for Beauty Baryon Decays
• 1-- and 0++ heavy four-quark and molecule states in QCD
• Mixing angle of doubly heavy baryons in QCD
• Charmful two-body anti-triplet $b$-baryon decays
• Testing the W-exchange mechanism with two-body baryonic B decays
• The strong ${\Lambda }_{b}NB$ and ${\Lambda }_{c}ND$ vertices
• Heavy Vector and Axial-Vector Mesons in Hot and Dense Asymmetric Strange Hadronic Matter
• ${\Lambda }_c$ semileptonic decays
• Semileptonic and leptonic $B$ decays, circa 2016
• ${\Lambda }_b\to {\Lambda }_c$ Form Factors from QCD Light-Cone Sum Rules
• Chiral Baryon Fields in the QCD Sum Rule
• ${\Lambda }_b\to p{l}^{-}\bar{\nu }$ form factors from lattice QCD with static b quarks
• Rare ${\Lambda }_c\to p{\ell }^{+}{\ell }^{-}$ decay in the relativistic quark model
• Analysis of the doubly heavy baryons in the nuclear matter with the QCD sum rules
• Hyperon semileptonic decays in QCD sum rules
• Method of Studying ${\Lambda }_b^0$ decays with one missing particle
• Branching Fractions of $B$ Meson Decays in Mesogenesis
• Weak Decays of Doubly Heavy Baryons: ${\mathcal{B}}_{cc}\to \mathcal{B}{D}^{(\ast )}$
• Time-reversal asymmetries and angular distributions in ${\Lambda }_b\to \Lambda V$
• Role of $Y(4630)$ in the $p\bar{p}\to {\Lambda }_c{\bar{\Lambda }}_c$ reaction near threshold
• Doubly Cabibbo-suppressed decays of antitriplet charmed baryons
• Predicted $\Lambda \bar{\Lambda }$ and ${\Xi }^{-}{\bar{\Xi }}^{+}$ decay modes of the charmoniumlike $Y(4230)$
• Light-cone Sum Rule Analysis of Semileptonic Decays ${\Lambda }_b^0\to {\Lambda }_c^{+}{\ell }^{-}{\overline{\nu }}_{\ell }$
• ${\Lambda }_b\to p,N^{\ast }(1535)$ Form Factors from QCD Light-Cone Sum Rules
• Strong coupling constants and radiative decays of the heavy tensor mesons
• Recent Developments on the CKM Matrix
• Study of ${\Lambda }_b\to \Lambda (\varphi ,{\eta }^{(\prime )})$ and ${\Lambda }_b\to \Lambda K^{+}{K}^{-}$ decays
• Restudy of the color-allowed two-body nonleptonic decay of bottom baryons ${\Xi }_b$ and ${\Omega }_b$ supported by hadron spectroscopy
• Strong couplings of negative and positive parity nucleons to the heavy baryons and mesons
• Semileptonic ${\Xi }_c$ baryon decays in the light cone QCD sum rules
• The PQCD approach towards to next-to-leading order: a short review
• Progress on semi-leptonic $B_{(s)}$ decays
• Analysis of the strong coupling form factors of ${\Sigma }_{b}NB$ and ${\Sigma }_{c}ND$ in QCD sum rules
• Status of $|V_{cb}|$ and $|V_{ub}|$ CKM matrix elements
• Sizable Time-reversal violating effects in bottom baryon decays
• Analysis of the strong vertices of ${\Sigma }_c\Delta D^{\ast }$ and ${\Sigma }_b\Delta B^{\ast }$ in QCD sum rules
• Final-state rescattering mechanism in bottom-baryon decays
• Rare ${\Lambda }_c$ decays and new physics effects
• Analysis of the strong vertices of ${\Sigma }_{c}N{D}^{\ast }$ and ${\Sigma }_{b}N{B}^{\ast }$ in QCD sum rules
• Light-Cone Distribution Amplitudes of Light $J^{PC}=2^{--}$ Tensor Mesons in QCD
• The decays ${\Lambda }_{b,c}\to N^{\ast }l\nu$ in QCD
• The strong vertices of bottom mesons $B$, $B^{\ast }$ and bottomonia ${\rm Y}$, ${\eta }_b$
• The study of weak decays induced by ${\frac{1}{2}}^{+}\to {\frac{3}{2}}^{-}$ transition in light-cone sum rules
• Roles of scalar mesons in charmless ${\Lambda }_b$ decays
• Form factors for the rare $Λ_{b}(Λ_{b}^*)\rar N\ell^+\ell^- $ decays in light cone QCD sum rules
• Octet negative parity to octet positive parity electromagnetic transitions in light cone QCD
• Exploring the simplest purely baryonic decay processes
• Semileptonic Decay of ${\Xi }_c\to \Xi {\ell }^{+}{\nu }_{\ell }$ From Light-Cone QCD Sum Rules
• Analysis of the strong vertexes of ${\Sigma }_c^{\ast }ND$ and ${\Sigma }_b^{\ast }NB$ in QCD sum rules
• Charmonium decays into ${\Lambda }_c{\bar{\Lambda }}_c$ pair governed by the hadronic loop mechanism
• Analysis of the strong vertices ${\Lambda }_c{D}^{(\ast )}{N}^{\ast }(1535)$ and ${\Lambda }_b{B}^{(\ast )}{N}^{\ast }(1535)$ in QCD sum rules
• Analysis of the semileptonic decays of ${\Xi }_{cc}$ and ${\Omega }_{cc}$ baryons in QCD sum rules
• Large CP Asymmetries from Final-State Interactions in Charmful Baryonic Decays of $B^0\to {\Xi }_c^{+}{\overline{\Xi }}_c^{-}$ and $B_s^0\to {\Lambda }_c^{+}{\overline{\Lambda }}_c^{-}$
• ${\Xi }_b\to \Xi$ form factors from lattice QCD and Standard-Model predictions for ${\Xi }_b\to \Xi {\mu }^{+}{\mu }^{-}$ and ${\Xi }_b\to \Xi \gamma$ decays
• Probing new physics effects in ${\Lambda }_b\to \Lambda (\to p{\pi }^{-}){\ell }^{+}{\ell }^{-}$ decay via model independent approach
• Baryons and baryoniums in the perspective of QCD sum rules
• Recent progress in decays of $b$ and $c$ hadrons
• Strong Vertices of Doubly Heavy Spin-3/2 Baryons with Light Pseudoscalar Mesons
• Analysis of the semileptonic decays ${\Sigma }_b\to {\Sigma }_{c}l{\bar{\nu }}_l$, ${\Xi }_b^{\prime }\to {\Xi }_c^{\prime }l{\bar{\nu }}_l$ and ${\Omega }_b\to {\Omega }_{c}l{\bar{\nu }}_l$ in QCD sum rules
• Electromagnetic probes revealing the inner structure of the ${\Lambda }_c(2940)$
• Obtaining |V(ub)| exclusively: a theoretical perspective