QCD Sum Rule Analysis for the Λ_b to Λ_c Semileptonic Decay

Abstract

The 1/m_c and 1/m_b corrections to the Λ_b to Λ_c semi- leptonic decay are analyzed by QCD sum rules. Within the framework of heavy quark effective theory,the subleading baryonic Isgur-Wise func- tion of Λ_b to Λ_c has been calculated. It is shown that the corrections due to the 1/m Lagrangian insertion are negligibly small. The sizable 1/m_Q effect to the decay lies only in the weak current. The decay spectrum and the branching ratio are given.

LateX, 16 pages including 3 figs, to appear in Phys. Lett.B

References in corpus (8)

• Heavy Quark Symmetry
• Next--to--Leading Order Corrections to Meson Masses in the Heavy Quark Effective Theory
• The Baryon Isgur-Wise Function in the Large $N_c$ Limit
• Baryonic currents and their correlators in the Heavy Quark Effective Theory
• 1/m Corrections to Heavy Baryon Masses in the Heavy Quark Effective Theory Sum Rules
• QCD Sum Rule Analysis of the Subleading Isgur-Wise Form Factor ${\chi }_2(v\cdot v^{\prime })$
• The Subleading Isgur-Wise Form Factor ${\xi }_3(v\cdot v^{\prime })$ and its Implications for the Decays $\bar{B}\to D^{(\ast )}\ell \bar{\nu }$
• Finite Mass Corrections to Leptonic Decay Constants in the Heavy Quark Effective Theory

Cited by in corpus (64)

• The hidden-charm pentaquark and tetraquark states
• A review of the open charm and open bottom systems
• Heavy Baryon Transitions in a Relativistic Three-Quark Model
• Form Factors and Strong Couplings of Heavy Baryons from QCD Light-Cone Sum Rules
• Bottom Baryons
• P-wave charmed baryons from QCD sum rules
• Decay properties of $P$-wave charmed baryons from light-cone QCD sum rules
• Semileptonic Decays of Heavy Lambda Baryons in a Quark Model
• QCD sum rule calculation for P-wave bottom baryons
• D-wave charmed and bottomed baryons from QCD sum rules
• Charmless Exclusive Baryonic B Decays
• Analysis of the ${\Omega }_c(3000)$, ${\Omega }_c(3050)$, ${\Omega }_c(3066)$, ${\Omega }_c(3090)$ and ${\Omega }_c(3119)$ with QCD sum rules
• Form Factors and Decay Rates for Heavy $\Lambda$ Semileptonic Decays from QCD Sum Rules
• Reanalysis of the heavy baryon states ${\Omega }_b$, ${\Omega }_c$, ${\Xi }_b^{\prime }$, ${\Xi }_c^{\prime }$, ${\Sigma }_b$ and ${\Sigma }_c$ with QCD sum rules
• First Lattice Study of Semileptonic Decays of Lambda_b and Xi_b Baryons
• Analysis of the ${\frac{1}{2}}^{\pm }$ flavor antitriplet heavy baryon states with QCD sum rules
• Charm and Bottom Baryon Decays in the Bethe-Salpeter Approach: Heavy to Heavy Semileptonic Transitions
• Semileptonic ${\Lambda }_b\to {\Lambda }_c\ell {\bar{\nu }}_{\ell }$ Transition in Full QCD
• The semi-leptonic form factors of ${\Lambda }_b\to {\Lambda }_c$ and ${\Xi }_b\to {\Xi }_c$ in QCD sum rules
• Excited heavy baryon masses to order Lambda_{QCD}/m_Q from QCD sum rules
• Excited heavy baryon masses in HQET QCD sum rules
• Revisiting semileptonic decays of ${\Lambda }_{b(c)}$ supported by baryon spectroscopy
• Infinite Momentum Frame Calculation of Semileptonic Heavy Λ_b\toΛ_c Transitions Including HQET Improvements
• Baryonium, tetra-quark state and glue-ball in large N_c QCD
• On the choice of heavy baryon currents in the relativistic three-quark model
• Decay ${\Lambda }_b\to pl\bar{\nu }$ in QCD sum rules
• Improved analysis for the baryon masses to order Lambda_{QCD}/m_Q from QCD sum rules
• Measurement of the Lambda_b^0 Decay Form Factor
• Applicability of perturbative QCD to ${\Lambda }_b\to {\Lambda }_c$ decays
• Charmful Baryonic B Decays ${\bar{B}}^0\to {\Lambda }_c\bar{p}$ and $\bar{B}\to {\Lambda }_c\bar{p}\pi (\rho )$
• Note on the Slope Parameter of the Baryonic Λ_b to Λ_c Isgur-Wise Function
• Diquarks and the Semi-Leptonic Decay of ${\Lambda }_b$ in the Hybrid Scheme
• QCD sum rule analysis of excited ${\Lambda }_c$ mass parameter
• QCD Sum Rules Calculation of Heavy $\Lambda$ Semileptonic Decay
• Choice of heavy baryon currents in QCD sum rules
• Analysis of Lambda_b to Lambda_c Weak Decays in Heavy Quark Effective Theory
• ${\Lambda }_c$ semileptonic decays
• Isgur-Wise function in a QCD potential model with coulombic potential as perturbation
• Analysis of the Lambda_b -> Lambda_c + l nu_l decay within a light-front constituent quark model
• Analysis of ${\Omega }_b^{-}(bss)$ and ${\Omega }_c^0(css)$ with QCD sum rules
• Chiral Baryon Fields in the QCD Sum Rule
• ${\Lambda }_b\to {\Lambda }_c$ Form Factors from QCD Light-Cone Sum Rules
• Hyperon semileptonic decays in QCD sum rules
• Light-cone Sum Rule Analysis of Semileptonic Decays ${\Lambda }_b^0\to {\Lambda }_c^{+}{\ell }^{-}{\overline{\nu }}_{\ell }$
• Leading Isgur-Wise form factor of ${\Lambda }_b\to {\Lambda }_{c1}$ transition using QCD sum rules
• The Semileptonic $\overline{B}⟶Dl\overline{\nu }$ and $\overline{B_s}⟶D_{s}l\overline{\nu }$ Decays in Isgur-Wise Approach
• ${\Omega }_b$ semi-leptonic weak decays
• Dispersive Bounds on The Shape Of Lambda_b to Lambda_c l {\bar ν_l} Formfactors
• Exclusive-Inclusive Ratio of Semileptonic Lambda_b-Decays
• Systematic analysis of the form factors of $B_c\to {\eta }_c$, $J/\psi$ and corresponding weak decays
• Reanalysis of the Four-Quark Operators Relevant to Λ_b Lifetime from QCD Sum Rule
• Subleading Isgur-Wise Function of ${\Lambda }_b\to {\Lambda }_{c1}$ using QCD sum rules
• Isgur-Wise function in a QCD inspired potential model with confinement as parent in the Variationally Improved Perturbation Theory (VIPT)
• Light-Cone HQET Sum Rules for the B --> pi Transition with 1/m_Q Corrections
• Rare ${\Lambda }_c$ decays and new physics effects
• b-baryon semi-tauonic decays in the Standard Model
• Bounds on the slope and curvature of Isgur-Wise function in a QCD inspired quark model
• New results on the baryon decay Lambda_b -> Lambda_c ell nu in Heavy Quark Effective Theory
• Electromagnetic and weak decay of singly Heavy Baryons (Qqq)
• ${\Lambda }_b\to {\Sigma }_c^{(\ast )}\pi l\bar{\nu }$ in the heavy quark, chiral, and large $N_c$ limits
• Exclusive and Inclusive Semileptonic Lambda_b-Decays
• Baryons and baryoniums in the perspective of QCD sum rules
• Analysis of the hadronic molecules $DK$, $D^{\ast }K$, $D{K}^{\ast }$ and their bottom analogs with QCD sum rules
• On the short distance nonperturbative corrections in heavy quark expansion