skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Nucleon, $$\Delta$$ and $$\Omega$$ excited states in $$N_f=2+1$$ lattice QCD

Journal Article · · Physical Review. D, Particles, Fields, Gravitation and Cosmology
 [1];  [2];  [1];  [3];  [4];  [1];  [2]
  1. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  2. Univ. of Maryland, College Park, MD (United States)
  3. Univ. of Washington, Seattle, WA (United States)
  4. Carnegie Mellon Univ., Pittsburgh, PA (United States)

The energies of the excited states of the Nucleon, $$\Delta$$ and $$\Omega$$ are computed in lattice QCD, using two light quarks and one strange quark on anisotropic lattices. The calculation is performed at three values of the light quark mass, corresponding to pion masses $$m_{\pi}$$ = 392(4), 438(3) and 521(3) MeV. We employ the variational method with a large basis of interpolating operators enabling six energies in each irreducible representation of the lattice to be distinguished clearly. We compare our calculation with the low-lying experimental spectrum, with which we find reasonable agreement in the pattern of states. In addition, the need to include operators that couple to the expected multi-hadron states in the spectrum is clearly identified.

Research Organization:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Grant/Contract Number:
AC05-06OR23177
OSTI ID:
985704
Report Number(s):
JLAB-THY-10-1170; DOE/OR/23177-1219; PRVDAQ; TRN: US1006180
Journal Information:
Physical Review. D, Particles, Fields, Gravitation and Cosmology, Vol. 82, Issue 1; ISSN 1550-7998
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 92 works
Citation information provided by
Web of Science

References (23)

First results from 2 + 1 dynamical quark flavors on an anisotropic lattice: Light-hadron spectroscopy and setting the strange-quark mass journal February 2009
Ab Initio Determination of Light Hadron Masses journal November 2008
Physical results from 2 + 1 flavor domain wall QCD and SU(2) chiral perturbation theory journal December 2008
Nucleon form factors with 2 + 1 flavor dynamical domain-wall fermions journal June 2009
Results for light pseudoscalars from three-flavor simulations journal March 2005
Low-lying baryon spectrum with two dynamical twisted mass fermions journal December 2009
Hadron spectroscopy with dynamical chirally improved fermions journal March 2009
Nonperturbative QCD simulations with 2 + 1 flavors of improved staggered quarks journal May 2010
Physical point simulation in 2 + 1 flavor lattice QCD journal April 2010
Lattice QCD determination of patterns of excited baryon states journal October 2007
Excited hadrons on the lattice: Baryons journal July 2006
Excited state nucleon spectrum with two flavors of dynamical fermions journal February 2009
Electroexcitation of nucleon resonances from CLAS data on single pion electroproduction journal November 2009
Tuning for three flavors of anisotropic clover fermions with stout-link smearing journal September 2008
Group-theoretical construction of extended baryon operators in lattice QCD journal November 2005
Novel quark-field creation operator construction for hadronic physics in lattice QCD journal September 2009
Adjoint sources in lattice gauge theory journal September 1985
How to calculate the elastic scattering matrix in two-dimensional quantum field theories by numerical simulation journal July 1990
Review of Particle Physics journal September 2008
Multiparticle states and the hadron spectrum on the lattice journal September 2006
Positive-parity excited baryons in a quark model with hyperfine interactions journal May 1979
Quark models of baryon masses and decays journal January 2000
The Chroma Software System for Lattice QCD journal March 2005

Cited By (24)

Constituent-quark model description of triply heavy baryon nonperturbative lattice QCD data journal March 2015
Quasi-free photoproduction of η-mesons off the deuteron journal August 2011
Unitarized Chiral Perturbation Theory in a finite volume: Scalar meson sector journal November 2011
Three particles in a finite volume journal May 2012
Scalar mesons moving in a finite volume and the role of partial wave mixing journal August 2012
On the ambiguities of sign determination of the S-matrix from energy levels in a finite box journal March 2013
QCD and strongly coupled gauge theories: challenges and perspectives journal October 2014
Extended hadron and two-hadron operators of definite momentum for spectrum calculations in lattice QCD text January 2013
Three particles in a finite volume conference October 2012
Extended hadron and two-hadron operators of definite momentum for spectrum calculations in lattice QCD text January 2013
QCD and Strongly Coupled Gauge Theories: Challenges and Perspectives text January 2014
Positive-parity Excited-states of the Nucleon in Quenched Lattice QCD text January 2010
Improved stochastic estimation of quark propagation with Laplacian Heaviside smearing in lattice QCD text January 2011
Coupled channel analysis of the rho meson decay in lattice QCD text January 2011
Helicity operators for mesons in flight on the lattice text January 2011
Quasi-free photoproduction of eta-mesons off the deuteron text January 2011
Excited-state spectroscopy of triply-bottom baryons from lattice QCD text January 2012
Light Hadron Masses from Lattice QCD text January 2012
Scalar mesons moving in a finite volume and the role of partial wave mixing text January 2012
On ambiguities of sign determination of the S-matrix from energy levels in a finite box text January 2012
Structure and Flow of the Nucleon Eigenstates in Lattice QCD text January 2013
Nucleon Excited State Wave Functions from Lattice QCD text January 2013
Decay constants of the pion and its excitations on the lattice text January 2014
A novel analysis method for excited states in lattice QCD - the nucleon case text January 2014

Similar Records

Nucleon, {Delta}, and {Omega} excited state spectra in N{sub f}=2+1 lattice QCD
Journal Article · Thu Jul 01 00:00:00 EDT 2010 · Physical Review. D, Particles Fields · OSTI ID:985704

Nucleon, Delta and Omega excited state spectra at three pion mass values
Conference · Tue Jun 01 00:00:00 EDT 2010 · Proceedings of Science · OSTI ID:985704

Dynamically-coupled partial-waves in ρπ isospin-2 scattering from lattice QCD
Journal Article · Fri Jul 06 00:00:00 EDT 2018 · Journal of High Energy Physics (Online) · OSTI ID:985704