Dynamically generated $J^P=1/2^{-}(3/2^{-})$ singly charmed and bottom heavy baryons

Abstract

Approximate heavy-quark spin and flavor symmetry and chiral symmetry play an important role in our understanding of the nonperturbative regime of strong interactions. In this work, utilizing the unitarized chiral perturbation theory, we explore the consequences of these symmetries in the description of the interactions between the ground-state singly charmed (bottom) baryons and the pseudo-Nambu-Goldstone bosons. In particular, at leading order in the chiral expansion, by fixing the only parameter in the theory to reproduce the ${\Lambda }_b(5912)$ [${\Lambda }_b^{\ast }(5920)$] or the ${\Lambda }_c(2595)$ [${\Lambda }_c^{\ast }(2625)$], we predict a number of dynamically generated states, which are contrasted with those of other approaches and available experimental data. In anticipation of future lattice QCD simulations, we calculate the corresponding scattering lengths and compare them to the existing predictions from a $\mathcal{O}(p^3)$ chiral perturbation theory study. In addition, we estimate the effects of the next-to-leading-order potentials by adopting heavy-meson Lagrangians and fixing the relevant low-energy constants using either symmetry or naturalness arguments. It is shown that higher-order potentials play a relatively important role in many channels, indicating that further studies are needed once more experimental or lattice QCD data become available.

35 pages, 2 figures; extended to 3/2^- sector and the effects of NLO potentials estimated; to appear in Physical Review D

References in corpus (37)

• Heavy quarkonium: progress, puzzles, and opportunities
• Observation of a resonance-like structure in the pi^+- psi' mass distribution in exclusive B-->K pi^+- psi' decays
• Prediction of narrow $N^{\ast }$ and ${\Lambda }^{\ast }$ resonances with hidden charm above 4 GeV
• Observation of the resonant character of the $Z(4430{)}^{-}$ state
• Dynamically Generated Open and Hidden Charm Meson Systems
• Dynamically generated 0^+ heavy mesons in a heavy chiral unitary approach
• Charmed bottom baryon spectroscopy from lattice QCD
• K^- p scattering length from scattering experiments
• Strong and radiative decays of the Ds0*(2317) meson in the DK-molecule picture
• Baryon spectrum with $N_f=2+1+1$ twisted mass fermions
• Strong Decays of Charmed Baryons in Heavy Hadron Chiral Perturbation Theory
• Estimate for the X(3872) to gamma J/psi decay width
• Strong decays of charmed baryons
• Isospin breaking effects in the X(3872) resonance
• The s-wave charmed baryon resonances from a coupled-channel approach with heavy quark symmetry
• Charmed baryon strong decays in a chiral quark model
• Radiative and isospin-violating decays of Ds mesons in the hadrogenesis conjecture
• X(3872) as a hadronic molecule and its decays to charmonium states and pions
• Comprehensive analysis of the wave function of a hadronic resonance and its compositeness
• Confirming the molecular nature of the $Z_b(10610)$ and the $Z_b(10650)$
• Hidden charm N and Delta resonances with heavy-quark symmetry
• Couplings in coupled channels versus wave functions in the case of resonances: application to the two $\Lambda (1405)$ states
• Odd parity bottom-flavored baryon resonances
• Baryon states with open beauty in the extended local hidden gauge approach
• ${\Lambda }_c^{+}(2940)$: A Possible Molecular State?
• Radiative decay of Lambdac(2940)+ in a hadronic molecule picture
• Dynamics of Hadronic Molecule in One-Boson Exchange Approach and Possible Heavy Flavor Molecules
• Baryon states with open charm in the extended local hidden gauge approach
• Bottom baryons from a dynamical lattice QCD simulation
• The observed charmed hadron ${\Lambda }_c(2940{)}^{+}$ and the $D^{\ast }N$ interaction
• Radiative decay of the X(3872) as a mixed molecule-charmonium state in QCD Sum Rules
• Strong three-body decays of Lambdac(2940)+
• Radiative decay of the dynamically generated open and hidden charm scalar meson resonances D_{s0}^*(2317) and X(3700)
• Radiative decays of dynamically generated charmed baryons
• The composite nature of the $\Lambda (1520)$ resonance
• Spectroscopy of heavy baryons with breaking of heavy-quark symmetry
• Possible $D\bar{D}$ and $B\bar{B}$ Molecular states in a chiral quark model

Cited by in corpus (55)

• Hadronic molecules
• The hidden-charm pentaquark and tetraquark states
• A review of the open charm and open bottom systems
• Spectrum of heavy baryons in the quark model
• Decay properties of $P$-wave charmed baryons from light-cone QCD sum rules
• QCD sum rule calculation for P-wave bottom baryons
• D-wave charmed and bottomed baryons from QCD sum rules
• Molecular ${\Omega }_c$ states generated from coupled meson-baryon channels
• Masses of Light and Heavy Mesons and Baryons: A Unified Picture
• Charm-beauty meson bound states from $B(B^{\ast })D(D^{\ast })$ and $B(B^{\ast })\bar{D}({\bar{D}}^{\ast })$ interaction
• $J/\psi ({\eta }_c)N$ and ${\rm Y}({\eta }_b)N$ cross sections
• Description of the ${\Xi }_c$ and ${\Xi }_b$ states as molecular states
• Prediction of exotic doubly charmed baryons within chiral effective field theory
• Can $X(5568)$ be described as a $B_s\pi$, $B\bar{K}$ resonant state?
• Prediction of new $T_{cc}$ states of $D^{\ast }{D}^{\ast }$ and $D_s^{\ast }{D}^{\ast }$ molecular nature
• Compositeness of S-wave weakly-bound states from next-to-leading order Weinberg's relations
• Single heavy baryons with chiral partner structure in a three-flavor chiral model
• ${\Xi }_c$ and ${\Xi }_b$ excited states within a ${\mathrm{SU}(6)}_{\mathrm{lsf}}\times$HQSS model
• $P$-wave charmed baryons of the $SU(3)$ flavor $6_F$
• Resonance on top of thresholds: the ${\Lambda }_c(2595{)}^{+}$ as an extremely fine-tuned state
• Molecular ${\Omega }_b$ states
• Heavy Flavour Physics and CP Violation at LHCb: a Ten-Year Review
• Decay properties of $P$-wave heavy baryons accompanied by vector mesons within light-cone sum rules
• Strong decays of the ${\Xi }_b(6227)$ as a ${\Sigma }_b\bar{K}$ molecule
• Masses and widths of the exotic molecular $B_{(s)}^{(\ast )}{B}_{(s)}^{(\ast )}$ states
• Doubly charmed ${\Xi }_{cc}$ molecular states from meson-baryon interaction
• On the nature of the lowest-lying odd parity charmed baryon ${\Lambda }_c(2595)$ and ${\Lambda }_c(2625)$ resonances
• Canonical interpretations of the newly observed ${\Xi }_c(2923{)}^0$, ${\Xi }_c(2939{)}^0$ and ${\Xi }_c(2965{)}^0$ resonances
• Strong decays of the low-lying bottom strange baryons
• $B_s\pi$--$B\bar{K}$ interactions in finite volume and the $X(5568)$
• On the binding of the $BD\bar{D}$ and $BDD$ systems
• Observed ${\Omega }_b$ spectrum and meson-baryon molecular states
• Identifying the ${\Xi }_c^0$ baryons observed by LHCb as $P$-wave ${\Xi }_c^{\prime }$ baryons
• Excited ${\Omega }_b$ baryons and fine structure of strong interaction
• Identifying the ${\Xi }_b(6100)$ as the $P$-wave bottom baryon of $J^P=3/2^{-}$
• The ${\Lambda }_c(2595)$ resonance as a dynamically generated state: the compositeness condition and the large $N_c$ evolution
• Refining radiative decay studies in singly heavy baryons
• The $\rho (\omega )B^{\ast }(B)$ interaction and states of $J=0,1,2$
• Study on the ${\Omega }_c^0$ States Decaying to ${\Xi }_c^{+}{K}^{-}$ in $pp$ collisions at $\sqrt{s}=7$, 13 TeV
• Three-Body $J^P=0^{+},1^{+},2^{+}$ $B^{\ast }{B}^{\ast }\bar{K}$ Bound States
• Hadronic Molecular States Composed of Spin-$\frac{3}{2}$ Singly Charmed Baryons
• Prediction of new states from $D^{(\ast )}{B}^{(\ast )}{\bar{B}}^{(\ast )}$ three-body interactions
• Hadronic molecules with four charm or beauty quarks
• $J/\psi N$ interactions revisited and ${\Lambda }_b^0\to J/\psi K^{-}({\pi }^{-})p$ decays
• The role of electromagnetic interaction in the $X(3872)$ and its analogs
• Decay widths and mass spectra of single bottom baryons
• Identifying the ${\Lambda }_b(6146{)}^0$ and ${\Lambda }_b(6152{)}^0$ as $D$-wave bottom baryons
• Study of $qqq\bar{q}Q$ pentaquark system in the Chiral Quark Model
• Are there near-threshold Coulomb-like Baryonia?
• Large-N_c sum rules for charmed baryons at subleading orders
• Is the ${\Lambda }_c(2625{)}^{+}$ the heavy quark spin symmetry partner of the ${\Lambda }_c(2595{)}^{+}$?
• Chiral dynamics of S-wave baryon resonances
• Strong decays of $a_0$, $f_0$, $f_2$, and $K_2^{\ast }$ resonances as dynamically generated states of two vector mesons
• Production of open-charm pentaquark molecules in decay $B^0\to {\bar{D}}^{0}p\bar{p}$
• Measurements of Born Cross Sections for $e^{+}{e}^{-}\to {\Lambda }_c^{+}{\bar{\Lambda }}_c(2595{)}^{-}+c.c.$ and $e^{+}{e}^{-}\to {\Lambda }_c^{+}{\bar{\Lambda }}_c(2625{)}^{-}+c.c.$ at $\sqrt{s}=$4918.0 and 4950.9 MeV