Light-Cone Sum Rules Analysis of ${\Xi }_{Q{Q}^{\prime }}\to {\Sigma }_{Q^{\prime }}$ Weak Decays

Abstract

As a continuation of our previous work, we investigate the weak decays of doubly-heavy baryons ${\Xi }_{Q{Q}^{\prime }}$ into sextet ${\Sigma }_{Q^{\prime }}$ with light-cone sum rules. We calculate the form factors for these decays with the parallel light-cone distribution amplitudes of ${\Sigma }_{Q^{\prime }}$. Numerical results of these form factors are used to predict the decay widths and branching ratios of the corresponding semi-leptonic processes. Parametric uncertainties and theoretical analyses are also given in detail. We find that the decay widths of ${\Xi }_{cc}$ and ${\Xi }_{bc}$ decays are several orders of magnitude larger than those of ${\Xi }_{bb}$ decays.

arXiv comment20 pages, 3 figures, 9 tables. arXiv admin note: substantial text overlap with arXiv:1903.03921

References in corpus (40)

• Observation of the doubly charmed baryon ${\Xi }_{cc}^{++}$
• Charmed bottom baryon spectroscopy from lattice QCD
• Baryons with two heavy quarks: Masses, production, decays, and detection
• Baryons with two heavy quarks
• First observation of the doubly charmed baryon decay ${\Xi }_{cc}^{++}\to {\Xi }_c^{+}{\pi }^{+}$
• Discovery Potentials of Doubly Charmed Baryons
• Weak Decays of Doubly Heavy Baryons: SU(3) Analysis
• Weak Decays of Doubly Heavy Baryons: the $1/2\to 1/2$ case
• Measurement of the lifetime of the doubly charmed baryon ${\Xi }_{cc}^{++}$
• Weak Decays of Doubly Heavy Baryons: Multi-body Decay Channels
• Excited State Mass spectra of doubly heavy baryons ${\Omega }_{cc}$, ${\Omega }_{bb}$ and ${\Omega }_{bc}$
• Discovery potential of stable and near-threshold doubly heavy tetraquarks at the LHC
• Strong and radiative decays of the doubly charmed baryons
• Interpretation of the newly observed ${\Omega }_c^0$ resonances
• Prospects of discovering stable double-heavy tetraquarks at a Tera-$Z$ factory
• Excited state mass spectra of doubly heavy $\Xi$ baryons
• Radiative decays of the doubly charmed baryons in chiral perturbation theory
• Weak decays of doubly heavy baryons: the $1/2\to 3/2$ case
• Decay chain information on the newly discovered double charm baryon state ${\Xi }_{cc}^{++}$
• Doubly heavy baryons at LHC
• Prediction of exotic doubly charmed baryons within chiral effective field theory
• Estimates of W-exchange contributions to ${\Xi }_{cc}$ decays
• Weak decays of doubly heavy baryons: the FCNC processes
• Doubly charmed baryon production in heavy ion collisions
• Ab initio three-loop calculation of the W-exchange contribution to nonleptonic decays of double charm baryons
• Light-Cone Distribution Amplitudes of the Ground State Bottom Baryons in HQET
• Weak decays of doubly heavy baryons: "decay constants"
• Weak Decays of Doubly Heavy Baryons: ${\mathcal{B}}_{cc}\to {\mathcal{B}}_{c}V$
• Light-Cone Sum Rules Analysis of ${\Xi }_{Q{Q}^{\prime }q}\to {\Lambda }_{Q^{\prime }}$ Weak Decays
• Magnetic moments of the spin-1/2 doubly charmed baryons in covariant baryon chiral perturbation theory
• Masses and sigma terms of doubly charmed baryons up to $\mathcal{O}(p^4)$ in manifestly Lorentz-invariant baryon chiral perturbation theory
• Weak Decays of Stable Doubly Heavy Tetraquark States
• Chiral partner structure of doubly heavy baryons with heavy quark spin-flavor symmetry
• Lifetimes of Doubly Charmed Baryons
• Magnetic moments of doubly heavy baryons in light-cone QCD
• An Analysis of Diagonal and Non-diagonal QCD Sum Rules for Heavy Baryons at Next-to-Leading Order in α_S
• Weak Decays of Doubly Heavy Baryons: W-Exchange
• Doubly charmed ${\Xi }_{cc}$ molecular states from meson-baryon interaction
• Possible hadronic molecules composed of the doubly charmed baryon and nucleon
• Weak Decays of Doubly-Heavy Tetraquarks $b\bar{c}q\bar{q}$

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• QCD sum rules analysis of weak decays of doubly heavy baryons: the $b\to c$ processes
• Strong coupling constants of doubly heavy baryons with vector mesons in QCD
• Determination of the strong vertices of doubly heavy baryons with pseudoscalar mesons in QCD
• Weak decays of triply heavy baryons in light front approach
• Strong Coupling Constants of the Doubly Heavy ${\Xi }_{QQ}$ Baryons with $\pi$ Meson
• Strong $B_{Q{Q}^{\prime }}^{\ast }{B}_{Q{Q}^{\prime }}V$ vertices and the radiative decays of $B_{QQ}^{\ast }\to B_{QQ}\gamma$ in the light-cone sum rules
• Strong interaction of doubly heavy spin-3/2 baryons with light vector mesons
• 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
• W-exchange contribution to the decays ${\Xi }_{cc}^{++}\to {\Xi }_c^{+(\prime )}{\pi }^{+}$ using light-cone sum rules
• Mass spectra of bottom-charm baryons
• Light-Cone Sum Rules Analysis of ${\Xi }_{Q{Q}^{\prime }q}\to {\Sigma }_{Q^{\prime }}^{\ast }$ Weak Decays
• Analysis of FCNC ${\Xi }_{QQ}\to {\Lambda }_Q{l}^{+}{l}^{-}$ decay in light-cone sum rules
• Semileptonic decays of doubly charmed baryons with bag model
• Strong Vertices of Doubly Heavy Spin-3/2 Baryons with Light Pseudoscalar Mesons
• Chiral Lagrangians for spin-$\frac{1}{2}$ and spin-$\frac{3}{2}$ doubly charmed baryons