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

Abstract

In this work, we investigate the semi-leptonic weak decays of spin-1/2 doubly-heavy baryons ${\Xi }_{Q{Q}^{\prime }}$ into spin-3/2 singly-heavy baryons ${\Sigma }_{Q^{\prime }}^{\ast }$ within light-cone sum rules. Using the parallel components of the light-cone distribution amplitudes of ${\Sigma }_{Q^{\prime }}^{\ast }$, the transition form factors for these decays are calculated both analytically and numerically. The numerical results for these semi-leptonic weak decays widths and branching ratios are also predicted, which are compared with the same predictions by other theoretical approaches in the literatures. These phenomenology predictions can be tested by the experiments in the future.

19 pages, 2 figures, 4 tables

References in corpus (17)

• Observation of the doubly charmed baryon ${\Xi }_{cc}^{++}$
• Heavy Baryons in a Quark Model
• Charmed bottom baryon spectroscopy from lattice QCD
• Baryons with two heavy quarks: Masses, production, decays, and detection
• Towards an understanding of heavy baryon spectroscopy
• Weak Decays of Doubly Heavy Baryons: SU(3) Analysis
• Weak Decays of Doubly Heavy Baryons: the $1/2\to 1/2$ case
• Weak Decays of Doubly Heavy Baryons: Multi-body Decay Channels
• Excited State Mass spectra of doubly heavy baryons ${\Omega }_{cc}$, ${\Omega }_{bb}$ and ${\Omega }_{bc}$
• Excited state mass spectra of doubly heavy $\Xi$ baryons
• ${\Lambda }_b\to p,\Lambda$ transition form factors from QCD light-cone sum rules
• Precision measurement of the ${\Xi }_{cc}^{++}$ mass
• Light-Cone Sum Rules Analysis of ${\Xi }_{Q{Q}^{\prime }q}\to {\Lambda }_{Q^{\prime }}$ Weak Decays
• Measurement of ${\Xi }_{cc}^{++}$ production in $pp$ collisions at $\sqrt{s}=13$ TeV
• Light-Cone Sum Rules Analysis of ${\Xi }_{Q{Q}^{\prime }}\to {\Sigma }_{Q^{\prime }}$ Weak Decays
• Endpoint Relations for Baryons
• Studying ${\mathcal{B}}_1({\frac{1}{2}}^{+})\to {\mathcal{B}}_2({\frac{1}{2}}^{+}){\ell }^{+}{\ell }^{-}$ Semi-leptonic Weak Baryon Decays with the SU(3) Flavor Symmetry

Cited by in corpus (2)

• Charmonium decays of beauty baryons in the perturbative QCD approach
• Mass spectra of bottom-charm baryons