Spectrum and structure of octet and decuplet baryons and their positive-parity excitations

Chen, Chen; Krein, Gastão; Roberts, Craig D.; Schmidt, Sebastian M.; Segovia, Jorge

doi:10.1103/PhysRevD.100.054009

Title: Spectrum and structure of octet and decuplet baryons and their positive-parity excitations

Abstract

A continuum approach to the three-valence-quark bound-state problem in quantum field theory, employing parametrizations of the necessary kernel elements, is used to compute the spectrum and Poincare-covariant wave functions for all flavor-SU(3) octet and decuplet baryons and their first positive-parity excitations. Such analyses predict the existence of nonpointlike, dynamical quark-quark (diquark) correlations within all baryons; and a uniformly sound description of the systems studied is obtained by retaining flavor-antitriplet-scalar and flavor-sextet-pseudovector diquarks. Thus constituted, the rest-frame wave function of every system studied is primarily S wave in character; and the fast positive-parity excitation of each octet or decuplet baryon exhibits the characteristics of a radial excitation. Importantly, every ground-state octet and decuplet baryon possesses a radial excitation. Hence, the analysis predicts the existence and masses of positive-parity excitations of the Ξ, Ξ*, and Ω baryons, states which have not yet been empirically identified. This body of analysis suggests that the expression of emergent mass generation is the same in all u, d, and s baryons and, notably, that dynamical quark-quark correlations play an essential role in the structure of each one. Furthermore, it also provides the basis for developing an array of predictions that can be tested in new generationmore » experiments.« less

Authors:

Chen, Chen ^[1]; Krein, Gastão ^[2];

^[3]; Schmidt, Sebastian M. ^[4]; Segovia, Jorge ^[5]

Univ. Estadual Paulista, Sao Paulo (Brazil); Justus-Liebig-Univ. Gießen, Gießen (Germany)
Univ. Estadual Paulista, Sao Paulo (Brazil)
Argonne National Lab. (ANL), Lemont, IL (United States)
Forschungszentrum Jülich and JARA, Julich (Germany)
Univ. Pablo de Olavide, Sevilla (Spain)

Publication Date:: Fri Sep 13 00:00:00 EDT 2019

Research Org.:: Argonne National Lab. (ANL), Argonne, IL (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Nuclear Physics (NP)

OSTI Identifier:: 1574302

Grant/Contract Number:: AC02-06CH11357

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review D

Additional Journal Information:: Journal Volume: 100; Journal Issue: 5; Journal ID: ISSN 2470-0010

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats


                    Chen, Chen, Krein, Gastão, Roberts, Craig D., Schmidt, Sebastian M., and Segovia, Jorge. Spectrum and structure of octet and decuplet baryons and their positive-parity excitations.  United States: N. p., 2019. 
Web.  doi:10.1103/PhysRevD.100.054009.

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                    Chen, Chen, Krein, Gastão, Roberts, Craig D., Schmidt, Sebastian M., & Segovia, Jorge. Spectrum and structure of octet and decuplet baryons and their positive-parity excitations.  United States.  https://doi.org/10.1103/PhysRevD.100.054009

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                    Chen, Chen, Krein, Gastão, Roberts, Craig D., Schmidt, Sebastian M., and Segovia, Jorge. Fri .  
"Spectrum and structure of octet and decuplet baryons and their positive-parity excitations".  United States.  https://doi.org/10.1103/PhysRevD.100.054009.  https://www.osti.gov/servlets/purl/1574302.

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@article{osti_1574302,

  title        = {Spectrum and structure of octet and decuplet baryons and their positive-parity excitations},

  author       = {Chen, Chen and Krein, Gastão and Roberts, Craig D. and Schmidt, Sebastian M. and Segovia, Jorge},

  abstractNote = {A continuum approach to the three-valence-quark bound-state problem in quantum field theory, employing parametrizations of the necessary kernel elements, is used to compute the spectrum and Poincare-covariant wave functions for all flavor-SU(3) octet and decuplet baryons and their first positive-parity excitations. Such analyses predict the existence of nonpointlike, dynamical quark-quark (diquark) correlations within all baryons; and a uniformly sound description of the systems studied is obtained by retaining flavor-antitriplet-scalar and flavor-sextet-pseudovector diquarks. Thus constituted, the rest-frame wave function of every system studied is primarily S wave in character; and the fast positive-parity excitation of each octet or decuplet baryon exhibits the characteristics of a radial excitation. Importantly, every ground-state octet and decuplet baryon possesses a radial excitation. Hence, the analysis predicts the existence and masses of positive-parity excitations of the Ξ, Ξ*, and Ω baryons, states which have not yet been empirically identified. This body of analysis suggests that the expression of emergent mass generation is the same in all u, d, and s baryons and, notably, that dynamical quark-quark correlations play an essential role in the structure of each one. Furthermore, it also provides the basis for developing an array of predictions that can be tested in new generation experiments.},

  doi          = {10.1103/PhysRevD.100.054009},

  journal      = {Physical Review D},

  number       = 5,

  volume       = 100,

  place        = {United States},

  year         = {Fri Sep 13 00:00:00 EDT 2019},

  month        = {Fri Sep 13 00:00:00 EDT 2019}

}

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Works referencing / citing this record:

Masses of light and heavy mesons and baryons: A unified picture
journal, December 2019

Gutiérrez-Guerrero, L. X.; Bashir, Adnan; Bedolla, Marco A.
Physical Review D, Vol. 100, Issue 11
DOI: 10.1103/physrevd.100.114032

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Baryons as relativistic three-quark bound states journal, November 2016

Analytic Structure of the Landau-Gauge Gluon Propagator journal, December 2012

Hadronisation of QCD journal, January 1989

Analytic properties of the quark propagator from an effective infrared interaction model journal, April 2017

Coupled-channel dynamics in the reactions πN → πN, ηN, KΛ, KΣ journal, April 2013

Bridging Time-Like and Space-Like N* Form Factors journal, November 2018

Measurements of e p → e ′ π + n at 1.6 < W < 2.0 GeV and extraction of nucleon resonance electrocouplings at CLAS journal, April 2015

Symmetries of Baryons and Mesons journal, February 1962

Physics opportunities with meson beams journal, October 2015

Goldstone theorem and diquark confinement beyond rainbow-ladder approximation journal, July 1996

Distribution amplitudes of radially-excited π and K mesons journal, June 2016

Excited state baryon spectroscopy from lattice QCD journal, October 2011

Electroproduction of η mesons in the S 11 ( 1535 ) resonance region at high momentum transfer journal, July 2009

Quark propagator in Landau and Laplacian gauges with overlap fermions journal, January 2005

Structure of the neutral pion and its electromagnetic transition form factor journal, April 2016

First results on nucleon resonance photocouplings from the γp → π+π−p reaction journal, January 2019

Beyond the rainbow: Effects from pion back-coupling journal, October 2008

Two loop calculation of the ω-ρ mass splitting journal, November 1992

Asymptotic freedom and Goldstone realization of chiral symmetry journal, October 1974

Dissecting nucleon transition electromagnetic form factors journal, October 2016

Nucleon axial and pseudoscalar form factors from the covariant Faddeev equation journal, January 2012

Baryons in a relativized quark model with chromodynamics journal, November 1986

Investigation of rainbow-ladder truncation for excited and exotic mesons journal, March 2012

Hyperon Puzzle: Hints from Quantum Monte Carlo Calculations journal, March 2015

Disentangling the Dynamical Origin of P 11 Nucleon Resonances journal, January 2010

The infrared behaviour of QCD Green's functions Confinement, dynamical symmetry breaking, and hadrons as relativistic bound states journal, November 2001

Octet and decuplet baryons in a covariant and confining diquark-quark model journal, October 1998

η c elastic and transition form factors: Contact interaction and algebraic model journal, May 2016

Nucleon and $${\Delta}$$ Δ Elastic and Transition Form Factors journal, October 2014

Nucleon electromagnetic form factors and electroexcitation of low-lying nucleon resonances in a light-front relativistic quark model journal, May 2012

γ * γ → η , η ′ transition form factors journal, January 2019

The Quark-Gluon Vertex in Landau gauge QCD conference, May 2013

Pion loop Contribution to the Electromagnetic pion Charge Radius journal, September 1995

CLAS $$\varvec{N^*}$$ N ∗ Excitation Results from Pion and Kaon Electroproduction journal, May 2018

Features and flaws of a contact interaction treatment of the kaon journal, April 2013

QCD at finite temperature and chemical potential from Dyson–Schwinger equations journal, March 2019

Poincaré-covariant analysis of heavy-quark baryons journal, June 2018

Quark models of baryon masses and decays journal, January 2000

Constituent quark model study of light- and strange-baryon spectra journal, August 2005

The pion: an enigma within the Standard Model journal, May 2016

Process-independent strong running coupling journal, September 2017

Insights into the γ * N → Δ transition journal, September 2013

Bridging a gap between continuum-QCD and ab initio predictions of hadron observables journal, March 2015

Analysis of full-QCD and quenched-QCD lattice propagators conference, January 2006

$Q^{2}$ dependence of the $S_{11} (1535)$ photocoupling and evidence for a $P$ -wave resonance in η electroproduction
journal, July 2007

Dyson–Schwinger Equations: A Tool for Hadron Physics
journal, June 2003

The Infrared Behaviour of the Pure Yang–Mills Green Functions
journal, January 2012

Evolving images of the proton: hadron physics over the past 40 years
journal, April 2016

Natural constraints on the gluon-quark vertex
journal, February 2017

N* Photoexcitation Results from Mainz
journal, July 2018

Pion form factor from a contact interaction
journal, June 2010

Abelian anomaly and neutral pion production
journal, December 2010

Quark-gluon vertex model and lattice-QCD data
journal, November 2004

Properties of baryon resonances from a multichannel partial wave analysis
journal, February 2012

The gluon mass generation mechanism: A concise primer
journal, February 2016

$B$ -meson to light-meson transition form factors
journal, August 2007

Symmetry preserving truncations of the gap and Bethe-Salpeter equations
journal, May 2016

N* Photoexcitation Results from Bonn
journal, July 2018

Measurements of $e p \to e^{'} π^{+} π^{-} p^{'}$ cross sections with CLAS at $1.40 GeV < W < 2.0$ GeV and $2.0 {GeV}^{2} < Q^{2} < 5.0 {GeV}^{2}$
journal, August 2017

Aspects and consequences of a dressed-quark-gluon vertex
journal, September 2004

Measurements of the $γ_{v} p \to p^{'} π^{+} π^{-}$ cross section with the CLAS detector for $0.4 {GeV}^{2} < Q^{2} < 1.0 {GeV}^{2}$ and $1.3 GeV < W < 1.825 GeV$
journal, August 2018

New results from the studies of the $N (1440) 1 / 2^{+}, N (1520) 3 / 2^{-}$ , and $Δ (1620) 1 / 2^{-}$ resonances in exclusive $e p \to e^{'} p^{'} π^{+} π^{-}$ electroproduction with the CLAS detector
journal, February 2016

Process-Independent Effective Coupling: From QCD Green’s Functions to Phenomenology
journal, July 2018

The S- and P-Wave Low-Lying Baryons in the Chiral Quark Model
journal, July 2018

Dynamical coupled-channels model of $K^{-} p$ reactions. II. Extraction of $Λ^{}$ and $Σ^{}$ hyperon resonances
journal, August 2015

$π$ and $ρ$ mesons, and their diquark partners, from a contact interaction
journal, June 2011

Strange and nonstrange baryon spectra in the relativistic interacting quark-diquark model with a Gürsey and Radicati-inspired exchange interaction
journal, August 2015

Three Lectures on Hadron Physics
journal, April 2016

Extraction of electromagnetic transition form factors for nucleon resonances within a dynamical coupled-channels model
journal, October 2010

Non-perturbative constraints on the quark and ghost propagators
journal, October 2018

Nucleon Resonance Structure from Exclusive Meson Electroproduction with CLAS
journal, April 2018

Review of Particle Physics
journal, August 2018

Quantum chromodynamics
journal, June 1979

Reconstructing the gluon
journal, January 2018

Complex poles and spectral function of Yang-Mills theory
journal, April 2019

Leading-twist parton distribution amplitudes of S -wave heavy-quarkonia
journal, February 2016

Parton distribution amplitudes: Revealing correlations within the proton and Roper
journal, August 2018

Baryons as relativistic three-quark bound states
journal, November 2016

Analytic Structure of the Landau-Gauge Gluon Propagator
journal, December 2012

Hadronisation of QCD
journal, January 1989

Analytic properties of the quark propagator from an effective infrared interaction model
journal, April 2017

Coupled-channel dynamics in the reactions πN → πN, ηN, KΛ, KΣ
journal, April 2013

Bridging Time-Like and Space-Like N* Form Factors
journal, November 2018

Measurements of $e p \to e^{'} π^{+} n$ at $1.6 < W < 2.0$ GeV and extraction of nucleon resonance electrocouplings at CLAS
journal, April 2015

Symmetries of Baryons and Mesons
journal, February 1962

Physics opportunities with meson beams
journal, October 2015

Goldstone theorem and diquark confinement beyond rainbow-ladder approximation
journal, July 1996

Distribution amplitudes of radially-excited $π$ and $K$ mesons
journal, June 2016

Excited state baryon spectroscopy from lattice QCD
journal, October 2011

Electroproduction of $η$ mesons in the $S_{11} (1535)$ resonance region at high momentum transfer
journal, July 2009

Quark propagator in Landau and Laplacian gauges with overlap fermions
journal, January 2005

Structure of the neutral pion and its electromagnetic transition form factor
journal, April 2016

First results on nucleon resonance photocouplings from the γp → π+π−p reaction
journal, January 2019

Beyond the rainbow: Effects from pion back-coupling
journal, October 2008

Two loop calculation of the ω-ρ mass splitting
journal, November 1992

Asymptotic freedom and Goldstone realization of chiral symmetry
journal, October 1974

Dissecting nucleon transition electromagnetic form factors
journal, October 2016

Nucleon axial and pseudoscalar form factors from the covariant Faddeev equation
journal, January 2012

Baryons in a relativized quark model with chromodynamics
journal, November 1986

Investigation of rainbow-ladder truncation for excited and exotic mesons
journal, March 2012

Hyperon Puzzle: Hints from Quantum Monte Carlo Calculations
journal, March 2015

Disentangling the Dynamical Origin of $P_{11}$ Nucleon Resonances
journal, January 2010

The infrared behaviour of QCD Green's functions Confinement, dynamical symmetry breaking, and hadrons as relativistic bound states
journal, November 2001

Octet and decuplet baryons in a covariant and confining diquark-quark model
journal, October 1998

$η_{c}$ elastic and transition form factors: Contact interaction and algebraic model
journal, May 2016

Nucleon and $${\Delta}$$ Δ Elastic and Transition Form Factors
journal, October 2014

Nucleon electromagnetic form factors and electroexcitation of low-lying nucleon resonances in a light-front relativistic quark model
journal, May 2012

$γ^{*} γ \to η, η^{'}$ transition form factors
journal, January 2019

The Quark-Gluon Vertex in Landau gauge QCD
conference, May 2013

Pion loop Contribution to the Electromagnetic pion Charge Radius
journal, September 1995

CLAS $$\varvec{N^*}$$ N ∗ Excitation Results from Pion and Kaon Electroproduction
journal, May 2018

Features and flaws of a contact interaction treatment of the kaon
journal, April 2013

QCD at finite temperature and chemical potential from Dyson–Schwinger equations
journal, March 2019

Poincaré-covariant analysis of heavy-quark baryons
journal, June 2018

Quark models of baryon masses and decays
journal, January 2000

Constituent quark model study of light- and strange-baryon spectra
journal, August 2005

The pion: an enigma within the Standard Model
journal, May 2016

Process-independent strong running coupling
journal, September 2017

Insights into the $γ^{*} N \to Δ$ transition
journal, September 2013

Bridging a gap between continuum-QCD and ab initio predictions of hadron observables
journal, March 2015

Analysis of full-QCD and quenched-QCD lattice propagators
conference, January 2006

Electromagnetic pion form factor and neutral pion decay width
journal, August 1996

Parity partners in the baryon resonance spectrum
journal, July 2017

Meson exchange contributions to the nucleon mass in the Faddeev approach to the NJL model
journal, July 1998