Charmful two-body ${\Omega }_b$ decays in the light-front quark model

Abstract

We investigate the singly and doubly charmful two-body ${\Omega }_b^{-}$ decays using the light-front quark model. Our findings reveal that most branching fractions calculated in this study, such as $\mathcal{B}({\Omega }_b^{-}\to {\Xi }^{-}{D}^0,{\Xi }^{-}{D}^{\ast 0})$, can be ten to one hundred times larger than those reported in previous calculations. Additionally, we interpret the ratio $\mathcal{B}({\Omega }_b^{-}\to {\Omega }^{-}J/\psi )/\mathcal{B}({\Omega }_b^{-}\to {\Omega }^{-}{\eta }_c)\simeq 3.4$ within the helicity framework. While the decay involving external $W$-boson emission appears to be suppressed by the $b\to u\bar{c}s$ weak transition, it still yields a significant branching fraction. For instance, $\mathcal{B}({\Omega }_b^{-}\to {\Xi }^0{D}_s^{\ast -})=(5.9-14.2)\times 10^{-5}$, $\mathcal{B}({\Omega }_b^{-}\to {\Xi }^{\ast 0}{D}_s^{-})=(6.7-12.1)\times 10^{-5}$, and $\mathcal{B}({\Omega }_b^{-}\to {\Xi }^{\ast 0}{D}_s^{\ast -})=(12.8-26.7)\times 10^{-5}$, with values reaching as large as $10^{-4}$. These predictions are well within the experimental reach of LHCb.

arXiv comment19 pages, 2 figures, 4 tables, matches the published version

References in corpus (40)

• Weak Decays Beyond Leading Logarithms
• Experimental Tests of Factorization in Charmless Non-Leptonic Two-Body B Decays
• Comment on the heavy-->light form factors
• Nonleptonic Weak Decays of Bottom Baryons
• Lattice QCD and QCD Sum Rule determination of the decay constants of eta_c, J/psi and hc states
• Weak Decays of Heavy Baryons in Light-Front Approach
• Diquarks and Λ_{b}\toΛ_c weak decays
• Charmed Baryon Weak Decays with SU(3) Flavor Symmetry
• Weak decays of doubly heavy baryons: the $1/2\to 3/2$ case
• Decay constants of the charmed vector mesons $D^{\ast }$ and $D_s^{\ast }$ from QCD sum rules
• Nonleptonic two-body decays of single heavy baryons ${\Lambda }_Q$, ${\Xi }_Q$, and ${\Omega }_Q$ $(Q=b,c)$ induced by $W$ emission in the covariant confined quark model
• Direct CP violation in ${\Lambda }_b$ decays
• ${\Sigma }_b\to {\Sigma }_c$ and ${\Omega }_b\to {\Omega }_c$ weak decays in the light-front quark model
• Revisiting ${\Lambda }_b\to {\Lambda }_c$ and ${\Sigma }_b\to {\Sigma }_c$ weak decays in the light-front quark model
• Light-Front Approach for Heavy Pentaquark Transitions
• A comprehensive analysis of weak transition form factors for doubly heavy baryons in the light front approach
• Charmed ${\Omega }_c$ weak decays into $\Omega$ in the light-front quark model
• Charmful Three-body Baryonic B decays
• Direct CP violation in $B^{\pm }\to p\bar{p}{K}^{(\ast )\pm }$
• Study of Radiative Leptonic D Meson Decays
• Charmless two-body anti-triplet $b$-baryon decays
• Toward discovering the excited $\Omega$ baryons through nonleptonic weak decays of ${\Omega }_c$
• Fragmentation fractions of two-body b-baryon decays
• Two-body charmed baryon decays involving decuplet baryon in the quark-diagram scheme
• Study of $B\to \Lambda \bar{\Lambda }K$ and $B\to \Lambda \bar{\Lambda }\pi$
• Testing the W-exchange mechanism with two-body baryonic B decays
• Charmful two-body anti-triplet $b$-baryon decays
• ${\Sigma }_b\to {\Sigma }_c^{\ast }$ weak decays in the light-front quark model with two schemes to deal with the polarization of diquark
• Interpretation of excited ${\Omega }_b$ signals
• Study of $B\to p\bar{p}{K}^{\ast }$ and $B\to p\bar{p}\rho$
• Direct CP violation in internal W-emission dominated baryonic B decays
• Estimates of exchange topological contributions and $CP$-violating observables in ${\Lambda }_b\to \Lambda \varphi$ decay
• Charmonium decays of beauty baryons in the perturbative QCD approach
• Form factors of ${\eta }_c$ in light front quark model
• Searching for $CP$ violation through two-dimensional angular distributions in four-body decays of bottom and charmed baryons
• First evidence for direct CP violation in beauty to charmonium decays
• Topological $SU(3{)}_f$ approach for two-body ${\Omega }_c$ weak decays
• Measuring $\mathbf{CP}$ violating phase in beauty baryon decays
• Measurement of the mass difference and relative production rate of the ${\Omega }_b^{-}$ and ${\Xi }_b^{-}$ baryons
• Testing the light scalar meson as a non-$q\bar{q}$ state in semileptonic $D$ decays

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