Charmed baryon spectrum from lattice QCD near the physical point

Abstract

We calculate the low-lying spectrum of charmed baryons in lattice QCD on the $32^3\times 64$, $N_f=2+1$ PACS-CS gauge configurations at the almost physical pion mass of $\sim 156$ MeV/c${}^2$. By employing a set of interpolating operators with different Dirac structures and quark-field smearings for the variational analysis, we extract the ground and first few excited states of the spin-$1/2$ and spin-$3/2$, singly-, doubly-, and triply-charmed baryons. Additionally, we study the ${\Xi }_c$-${\Xi }_c^{\prime }$ mixing and the operator dependence of the excited states in a variational approach. We identify several states that lie close to the experimentally observed excited states of the ${\Sigma }_c$, ${\Xi }_c$ and ${\Omega }_c$ baryons, including some of the ${\Xi }_c$ states recently reported by LHCb. Our results for the doubly- and triply-charmed baryons are suggestive for future experiments.

arXiv comment17 pages, 8 figures. version published in PRD

References in corpus (75)

• The Chroma Software System for Lattice QCD
• Solving Lattice QCD systems of equations using mixed precision solvers on GPUs
• Observation of the doubly charmed baryon ${\Xi }_{cc}^{++}$
• Heavy Baryons in a Quark Model
• 2+1 Flavor Lattice QCD toward the Physical Point
• First Observation of the Doubly Charmed Baryon Xi_cc^+
• Spectroscopy and Regge trajectories of heavy baryons in the relativistic quark-diquark picture
• Mass spectra of doubly heavy baryons in the relativistic quark model
• Confirmation of the Double Charm Baryon Xi_cc+ via its Decay to p D+ K-
• Observation of five new narrow ${\Omega }_c^0$ states decaying to ${\Xi }_c^{+}{K}^{-}$
• Charmed bottom baryon spectroscopy from lattice QCD
• Progress Toward Understanding Baryon Resonances
• Spectrum of heavy baryons in the quark model
• Masses of excited heavy baryons in the relativistic quark-diquark picture
• Observation of New States Decaying into ${\Lambda }_c^{+}{K}^{-}{\pi }^{+}$ and ${\Lambda }_c^{+}{K}_S^0{\pi }^{-}$
• Towards an understanding of heavy baryon spectroscopy
• PREDICTING THE MASSES OF BARYONS CONTAINING ONE OR TWO HEAVY QUARKS
• Faddeev study of heavy baryon spectroscopy
• Charmed and Bottom Baryons from Lattice NRQCD
• Baryon spectrum with $N_f=2+1+1$ twisted mass fermions
• Masses of heavy baryons in the relativistic quark model
• Observation of an Isotriplet of Excited Charmed Baryons Decaying to ${\Lambda }_c^{+}\pi$
• Charmed baryons at the physical point in 2+1 flavor lattice QCD
• Scaling Lattice QCD beyond 100 GPUs
• Quantum Numbers of Recently Discovered ${\Omega }_c^0$ Baryons from Lattice QCD
• Very narrow excited ${\Omega }_c$ baryons
• Charmed-Baryon Spectroscopy from Lattice QCD with N_f=2+1+1 Flavors
• Charmed baryons in lattice QCD
• P-wave charmed baryons from QCD sum rules
• Charmed baryon spectroscopy and light flavour symmetry from lattice QCD
• Doubly heavy baryons in QCD sum rules
• Decay properties of $P$-wave charmed baryons from light-cone QCD sum rules
• Mass spectra and Regge trajectories of ${\Lambda }_c^{+}$, ${\Sigma }_c^0$, ${\Xi }_c^0$ and ${\Omega }_c^0$ Baryons
• A Study of Excited Charm-Strange Baryons with Evidence for new Baryons Ξ_c(3055)^+ and Ξ_c(3123)^+
• Isolating the Λ(1405) in Lattice QCD
• On the nature of the newly discovered ${\Omega }_c^0$ states
• Understanding the newly observed ${\Omega }_c$ states through their decays
• Spectroscopy of doubly-charmed baryons from lattice QCD
• Search for doubly charmed baryons and study of charmed strange baryons at Belle
• Interpretation of the newly observed ${\Omega }_c^0$ resonances
• Spectroscopy of triply-charmed baryons from lattice QCD
• Low-lying baryon masses using $N_f=2$ twisted mass clover-improved fermions directly at the physical point
• Heavy baryon spectroscopy in QCD
• Quantum Numbers of ${\Omega }_c$ States and Other Charmed Baryons
• Heavy Baryon Specroscopy from the Lattice
• Analysis of the ${\Omega }_c(3000)$, ${\Omega }_c(3050)$, ${\Omega }_c(3066)$, ${\Omega }_c(3090)$ and ${\Omega }_c(3119)$ with QCD sum rules
• A look inside charmed-strange baryons from lattice QCD
• Spectroscopy of Doubly-Charmed Baryons in Lattice QCD
• Reanalysis of the heavy baryon states ${\Omega }_b$, ${\Omega }_c$, ${\Xi }_b^{\prime }$, ${\Xi }_c^{\prime }$, ${\Sigma }_b$ and ${\Sigma }_c$ with QCD sum rules
• Observation of new ${\Xi }_c^0$ baryons decaying to ${\Lambda }_c^{+}{K}^{-}$
• Possibility of the existence of charmed exotica
• A study of Bbar -> Xi_c Lambda_c^- and Bbar -> Lambda_c^+ Lambda_c^- Kbar decays at BABAR
• Hyperfine Mass Splittings of Baryons Containing a Heavy Quark in Large N QCD
• Baryon Masses in Lattice QCD with Exact Chiral Symmetry
• Search for low-lying lattice QCD eigenstates in the Roper regime
• Lattice QCD study of doubly-charmed strange baryons
• Studies of charmed strange baryons in the $\Lambda D$ final state at Belle
• Analysis of ${\Omega }_c^{\ast }(css)$ and ${\Omega }_b^{\ast }(bss)$ with QCD sum rules
• Meson and Baryon dispersion relations with Brillouin fermions
• Investigating the excited ${\Omega }_c^0$ states through ${\Xi }_{c}K$ and ${\Xi }_c^{{}^{\prime }}K$ decay channels
• Phenomenology of New Baryons with Charm and Strangeness
• Radiative transitions of doubly charmed baryons in lattice QCD
• Excited heavy baryon masses in HQET QCD sum rules
• Observation of ${\Xi }_c(2930{)}^0$ and updated measurement of $B^{-}\to K^{-}{\Lambda }_c^{+}{\bar{\Lambda }}_c^{-}$ at Belle
• Excited nucleons with chirally improved fermions
• $D^{(\ast )}N$ interaction and the structure of ${\Sigma }_c(2800)$ and ${\Lambda }_c(2940)$ in chiral effective field theory
• Measurement of masses of the ${\Xi }_c(2645)$ and ${\Xi }_c(2815)$ baryons and observation of ${\Xi }_c(2980)\to {\Xi }_c(2645)\pi$ %and observation of the ${\Xi }_c(2980)$ and observation of ${\Xi }_c(2980)\to {\Xi }_c(2645)\pi$
• A Perturbative Determination of Mass Dependent $O(a)$ Improvement Coefficients in a Relativistic Heavy Quark Action
• Improved analysis for the baryon masses to order Lambda_{QCD}/m_Q from QCD sum rules
• Lattice QCD with $N_f=2+1+1$ domain-wall quarks
• Heavy hadron spectroscopy: a quark model perspective
• Even parity excitations of the nucleon in lattice QCD
• Chiral effective theory of diquarks and the U_A(1) anomaly
• Spectrum of singly heavy baryons from a chiral effective theory of diquarks
• Flavor structure of $\Lambda$ baryons from lattice QCD: From strange to charm quarks

Cited by in corpus (32)

• An updated review of the new hadron states
• Chiral perturbation theory for heavy hadrons and chiral effective field theory for heavy hadronic molecules
• 50 Years of Quantum Chromodynamics
• Charmed Baryon Physics Circa 2021
• Masses of Doubly Heavy Tetraquarks with Error Bars
• Masses of positive- and negative-parity hadron ground-states, including those with heavy quarks
• Masses and radiative decay widths of S- and P-wave singly-, doubly- and triply-heavy charm and bottom baryons
• $P$-wave charmed baryons of the $SU(3)$ flavor $6_F$
• Strong decay widths and mass spectra of charmed baryons
• Spectrum of singly heavy baryons from a chiral effective theory of diquarks
• Effective QCD string and doubly heavy baryons
• Identifying the ${\Xi }_c^0$ baryons observed by LHCb as $P$-wave ${\Xi }_c^{\prime }$ baryons
• Lattice QCD study of the elastic and transition form factors of charmed baryons
• Newly discovered ${\Xi }_c^0$ resonances and their parameters
• Quark-diquark potential and diquark mass from Lattice QCD
• Heavy baryons in the relativized quark model with chromodynamics
• Magnetic moments of the spin-$\frac{3}{2}$ doubly charmed baryons in covariant baryon chiral perturbation theory
• Triply heavy baryon spectroscopy revisited
• Strong decays of the low-lying $1P$- and $1D$-wave ${\Sigma }_c$ baryons
• Toward establishing the low-lying $P$-wave excited ${\Sigma }_c$ baryon states
• One-loop analysis of the interactions between doubly charmed baryons and Nambu-Goldstone bosons
• Mass and decay width of $T_{ccs}$ from symmetries
• Heavy baryon spectroscopy in a quark-diquark approach
• Chiral corrections to the masses of the doubly heavy baryons
• Precise study of triply charmed baryons ${\Omega }_{ccc}$
• Electromagnetic Structure of Spin-$\frac{1}{2}$ Doubly Charmed Baryons in Lattice QCD
• Observation of a new charmed baryon decaying to ${\Xi }_c^{+}{\pi }^{-}{\pi }^{+}$
• Properties of spin-1/2 heavy baryons at nonzero temperature
• Predicting the Masses of Exotic Hadrons with Data Augmentation Using Multilayer Perceptron
• Mass spectrum, magnetic moments and Regge trajectories of ${\Omega }_{ccb}$ and ${\Omega }_{cbb}$ baryons in the nonrelativistic quark--diquark model
• ${\Xi }_c(3055)$ as a scaling point to establish the excited ${\Xi }_c^{(\prime )}$ family
• Radiative ${\Xi }_b^{-}\to {\Xi }^{-}\gamma$ decay