Semileptonic decays of heavy baryons in the relativistic quark model

Abstract

Semileptonic decays of heavy baryons consisting of one heavy (Q=b,c) and two light (q=u,d,s) quarks are considered in the heavy-quark--light-diquark approximation. The relativistic quasipotential equation is used for obtaining masses and wave functions of both diquarks and baryons within the constituent quark model. The weak transition matrix elements are expressed through the overlap integrals of the baryon wave functions. The Isgur-Wise functions are determined in the whole accessible kinematic range. The exclusive semileptonic decay rates and different asymmetries are calculated with applying the heavy quark 1/m_Q expansion. The evaluated Lambda_b -> Lambda_c l nu decay rate agrees with its experimental value.

arXiv comment22 pages, 9 figures

References in corpus (21)

• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)
• Heavy Quark Symmetry
• Exotica
• Properties of heavy quarkonia and B_c mesons in the relativistic quark model
• Mass spectra of doubly heavy baryons in the relativistic quark model
• Heavy baryons
• Mass spectrum of orbitally and radially excited heavy-light mesons in the relativistic quark model
• Masses of heavy tetraquarks in the relativistic quark model
• Heavy Baryon Transitions in a Relativistic Three-Quark Model
• Masses of heavy baryons in the relativistic quark model
• 1/M Corrections to Baryonic Form Factors in the Quark Model
• Second Order Power Corrections in the Heavy Quark Effective Theory II. Baryon Form Factors
• Semileptonic decays of doubly heavy baryons in the relativistic quark model
• First Lattice Study of Semileptonic Decays of Lambda_b and Xi_b Baryons
• Combined nonrelativistic constituent quark model and heavy quark effective theory study of semileptonic decays of Λ_b and Ξ_b baryons
• Charm and Bottom Baryon Decays in the Bethe-Salpeter Approach: Heavy to Heavy Semileptonic Transitions
• Relativistic Description of Exclusive Heavy-to-Light Semileptonic Decays $B\to \pi (\rho )e\nu$
• Masses of light mesons in the relativistic quark model
• Note on the Slope Parameter of the Baryonic Λ_b to Λ_c Isgur-Wise Function
• Measurement of the Lambda_b^0 Decay Form Factor
• Analysis of the Lambda_b -> Lambda_c + l nu_l decay within a light-front constituent quark model

Cited by in corpus (53)

• Masses of excited heavy baryons in the relativistic quark-diquark picture
• Masses of tetraquarks with two heavy quarks in the relativistic quark model
• Excited heavy tetraquarks with hidden charm
• The semileptonic decay Lambda_b -> Lambda_c + tau(-) + antinu_tau in the covariant confined quark model
• Mass spectra and Regge trajectories of ${\Lambda }_c^{+}$, ${\Sigma }_c^0$, ${\Xi }_c^0$ and ${\Omega }_c^0$ Baryons
• Diquarks and Λ_{b}\toΛ_c weak decays
• Strange baryon spectroscopy in the relativistic quark model
• Evaluating decay Rates and Asymmetries of ${\Lambda }_b$ into Light Baryons in LFQM
• Semileptonic decays of ${\Lambda }_b$ baryons in the relativistic quark model
• Weak decays of $B_s$ mesons to $D_s$ mesons in the relativistic quark model
• ${\Sigma }_b\to {\Sigma }_c$ and ${\Omega }_b\to {\Omega }_c$ weak decays in the light-front quark model
• Semileptonic and nonleptonic decays of B_c mesons to orbitally excited heavy mesons in the relativistic quark model
• Revisiting ${\Lambda }_b\to {\Lambda }_c$ and ${\Sigma }_b\to {\Sigma }_c$ weak decays in the light-front quark model
• Light cone QCD sum rules study of the semileptonic heavy ${\Xi }_Q$ and ${\Xi }_Q^{\prime }$ transitions to $\Xi$ and $\Sigma$ baryons
• Measurement of the shape of the ${\Lambda }_b^0\to {\Lambda }_c^{+}{\mu }^{-}\overline{\nu }$ differential decay rate
• Masses of tetraquarks with open charm and bottom
• Revisiting semileptonic decays of ${\Lambda }_{b(c)}$ supported by baryon spectroscopy
• Charmless weak $B_s$ decays in the relativistic quark model
• Semileptonic ${\Lambda }_{b,c}$ to Nucleon Transitions in Full QCD at Light Cone
• Rare semileptonic decays of B and B_c mesons in the relativistic quark model
• Study on ${\Xi }_{cc}\to {\Xi }_c$ and ${\Xi }_{cc}\to {\Xi }_c^{\prime }$ weak decays in the light-front quark model
• Relativistic description of the ${\Xi }_b$ baryon semileptonic decays
• Rare $B_s$ decays in the relativistic quark model
• ${\Sigma }_b\to {\Sigma }_c^{\ast }$ weak decays in the light-front quark model with two schemes to deal with the polarization of diquark
• Phenomenology of ${\Xi }_b\to {\Xi }_c\tau \nu$ decays
• Implication of $R_{D^{(\ast )}}$ anomalies on semileptonic decays of ${\Sigma }_b$ and ${\Omega }_b$ baryons
• Light-cone Sum Rule Analysis of Semileptonic Decays ${\Lambda }_b^0\to {\Lambda }_c^{+}{\ell }^{-}{\overline{\nu }}_{\ell }$
• Test of the heavy quark-light diquark approximation for baryons with a heavy quark
• Semileptonic transition of ${\Sigma }_b$ to $\Sigma$ in Light Cone QCD Sum Rules
• The weak decays of ${\Xi }_c^{{(}^{\prime })}\to \Xi$ in the light-front quark model
• Semileptonic Transition of ${\Lambda }_b$ Baryon
• Restudy of the color-allowed two-body nonleptonic decay of bottom baryons ${\Xi }_b$ and ${\Omega }_b$ supported by hadron spectroscopy
• Charmonium decays of beauty baryons in the perturbative QCD approach
• Heavy baryon wave functions, Bakamjian-Thomas approach to form factors, and observables in ${\Lambda }_b\to {\Lambda }_c\left({\frac{1}{2}}^{\pm }\right)\ell \overline{\nu }$ transitions
• ${\Omega }_b$ semi-leptonic weak decays
• Probing new physics in semileptonic ${\Sigma }_b$ and ${\Omega }_b$ decays
• Study on the weak decay between two heavy baryons ${\mathcal{B}}_i({\frac{1}{2}}^{+})\to {\mathcal{B}}_f({\frac{3}{2}}^{+})$ in the light-front quark model
• Exclusive semileptonic and nonleptonic decays of B mesons to orbitally excited light mesons
• Investigating the transition form factors of ${\Lambda }_b\to {\Lambda }_c(2625)$ and ${\Xi }_b\to {\Xi }_c(2815)$ and the corresponding weak decays with support from baryon spectroscopy
• Strong decays of vector mesons to pseudoscalar mesons in the relativistic quark model
• Tree Level Semileptonic ${\Sigma }_b$ to Nucleon Decay in Light Cone QCD Sum Rules
• Measuring c-quark polarization in W+c samples at ATLAS and CMS
• Static properties and Semileptonic transitions of lowest-lying double heavy baryons
• Heavy quark symmetry of ${\Lambda }_b^0$ decays in quark models
• b-baryon semi-tauonic decays in the Standard Model
• The study of weak decays induced by ${\frac{1}{2}}^{+}\to {\frac{3}{2}}^{-}$ transition in light-cone sum rules
• Semileptonic baryon decays ${\Xi }_b\to {\Xi }_c{\ell }^{-}{\bar{\nu }}_{\ell }$ in perturbative QCD
• Analysis of the semileptonic decays ${\Lambda }_b\to {\Lambda }_{c}l{\bar{\nu }}_l$ and ${\Xi }_b\to {\Xi }_{c}l{\bar{\nu }}_l$ in QCD sum rules
• Electromagnetic and weak decay of singly Heavy Baryons (Qqq)
• Analysis of the semileptonic decays of ${\Xi }_{cc}$ and ${\Omega }_{cc}$ baryons in QCD sum rules
• Relics of Supersymmetry in Ordinary 1-flavor QCD: Hairpin Diagrams and Scalar-Pseudoscalar Degeneracy
• Semileptonic decay and form factors of ${\Omega }_b^{-}\to {\Omega }_c^{0}e\overline{{\nu }_e}$
• Semileptonic decay form factors of ${\Xi }_b^0\to {\Xi }_c^{+}\ell {\bar{\nu }}_{\ell }$ in HQET