Analysis of the semileptonic decays of ${\Xi }_{cc}$ and ${\Omega }_{cc}$ baryons in QCD sum rules

Abstract

We firstly carry out a systematic analysis on the spin ${\frac{1}{2}}^{+}\to {\frac{3}{2}}^{+}$ weak transition process in the framework of three-point QCD sum rules, where the initial and final states are doubly and singly charmed baryons. In the phenomenological side, all possible couplings of interpolating current to hadronic states are considered. In doing operator production expansion at QCD side, the contributions of the perturbative part, vacuum condensate terms of $⟨\bar{q}q⟩$, $⟨g_s^{2}GG⟩$, $⟨\bar{q}{g}_s\sigma Gq⟩$ and $g_s^2⟨\bar{q}q{⟩}^2$ are all considered. After the form factors in space-like region ($Q^2>0$) are obtained, the numerical results are extrapolated into time-like region ($Q^2<0$) by a fitting function. Using the predicted form factors, we finally analyze the semileptonic decays of ${\Xi }_{cc}^{++}\to {\Sigma }_c^{\ast +}{l}^{+}{\nu }_l$, ${\Xi }_{cc}^{++}\to {\Xi }_c^{\prime \ast +}{l}^{+}{\nu }_l$, ${\Omega }_{cc}^{+}\to {\Xi }_c^{\prime \ast 0}{l}^{+}{\nu }_l$ and ${\Omega }_{cc}^{+}\to {\Omega }_c^{\ast 0}{l}^{+}{\nu }_l$ with $l=e,\mu$. The predictions in this work can deepen our understanding of the dynamics in the decay processes of doubly heavy baryons and provide useful information to explore the possibility of new physics in heavy baryonic decay channels.

References in corpus (46)

• Observation of the doubly charmed baryon ${\Xi }_{cc}^{++}$
• Constraints on Form Factors For Exclusive Semileptonic Heavy to Light Meson Decays
• First observation of the doubly charmed baryon decay ${\Xi }_{cc}^{++}\to {\Xi }_c^{+}{\pi }^{+}$
• Gluon Condensates and m_{c,b} from QCD-Moments and their ratios to Order alpha_s^3 and <G^4>
• Weak Decays of Doubly Heavy Baryons: SU(3) Analysis
• Form Factors and Strong Couplings of Heavy Baryons from QCD Light-Cone Sum Rules
• Nonleptonic Weak Decays of Bottom Baryons
• Gluon Condensates and m_b(m_b) from QCD-Exponential Moments at Higher Orders
• Exclusive Nonleptonic Decays of Bottom and Charm Baryons in a Relativistic Three-Quark Model: Evaluation of Nonfactorizing Diagrams
• Gluon condensates and c, b quark masses from quarkonia ratios of moments
• Weak Decays of Heavy Baryons in Light-Front Approach
• Perturbative Corrections to ${\Lambda }_b\to \Lambda$ Form Factors from QCD Light-Cone Sum Rules
• Rare Decays of Λ_b->Λ+ γand Λ_b ->Λ+ l^{+} l^{-} in the Light-cone Sum Rules
• Semileptonic decays of heavy baryons in the relativistic quark model
• Analysis of the ${\frac{3}{2}}^{+}$ heavy and doubly heavy baryon states with QCD sum rules
• Semileptonic decays of double heavy baryons in a relativistic constituent three-quark model
• Analysis of the doubly heavy baryon states and pentaquark states with QCD sum rules
• Weak decays of doubly heavy baryons: the $1/2\to 3/2$ case
• QCD Sum Rules Analysis of Weak Decays of Doubly-Heavy Baryons
• 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
• 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
• Combined nonrelativistic constituent quark model and heavy quark effective theory study of semileptonic decays of Λ_b and Ξ_b baryons
• Precision measurement of the ${\Xi }_{cc}^{++}$ mass
• The semi-leptonic and non-leptonic weak decays of ${\Lambda }_b^0$
• Systematic analysis of single heavy baryons ${\Lambda }_Q$, ${\Sigma }_Q$ and ${\Omega }_Q$
• The semi-leptonic form factors of ${\Lambda }_b\to {\Lambda }_c$ and ${\Xi }_b\to {\Xi }_c$ in QCD sum rules
• A comprehensive analysis of weak transition form factors for doubly heavy baryons in the light front approach
• Color-allowed Bottom Baryon to Charmed Baryon non-leptonic Decays
• Analysis of the semileptonic and nonleptonic two-body decays of the double heavy charm baryon states ${\Xi }_{cc}^{++},{\Xi }_{cc}^{+}$ and ${\Omega }_{cc}^{+}$
• Revisiting semileptonic decays of ${\Lambda }_{b(c)}$ supported by baryon spectroscopy
• Review of the QCD sum rules for exotic states
• Exclusive nonleptonic bottom to charm baryon decays including nonfactorizable contributions
• Analysis of the ${\Lambda }_c(2860)$, ${\Lambda }_c(2880)$, ${\Xi }_c(3055)$ and ${\Xi }_c(3080)$ as D-wave baryon states with QCD sum rules
• Nonleptonic two-body weak decays of ${\Lambda }_b$ in modified MIT bag model
• Relativistic description of the ${\Xi }_b$ baryon semileptonic decays
• Systematic analysis of doubly charmed baryons ${\Xi }_{cc}$ and ${\Omega }_{cc}$
• Systematic analysis of strange single heavy baryons ${\Xi }_c$ and ${\Xi }_b$
• ${\Lambda }_c$ semileptonic decays
• QCD sum rules analysis of weak decays of doubly heavy baryons: the $b\to c$ processes
• ${\Lambda }_b\to {\Lambda }_c$ Form Factors from QCD Light-Cone Sum Rules
• Restudy of the color-allowed two-body nonleptonic decay of bottom baryons ${\Xi }_b$ and ${\Omega }_b$ supported by hadron spectroscopy
• 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
• The study of weak decays induced by ${\frac{1}{2}}^{+}\to {\frac{3}{2}}^{-}$ transition in light-cone sum rules
• 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
• Analysis of the strong vertices ${\Lambda }_c{D}^{(\ast )}{N}^{\ast }(1535)$ and ${\Lambda }_b{B}^{(\ast )}{N}^{\ast }(1535)$ in QCD sum rules

Cited by in corpus (1)

• Baryons and baryoniums in the perspective of QCD sum rules