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Title: Octet baryon magnetic moments from lattice QCD: Approaching experiment from a three-flavor symmetric point

Journal Article · · Physical Review D
 [1];  [2];  [3];  [4];  [5];  [6];  [7]
  1. Univ. of Barcelona (Spain). Inst. of Cosmo Sciences
  2. Univ. of Washington, Seattle, WA (United States). Inst. for Nuclear Theory; Univ. of California, Santa Barbara, CA (United States). Inst. for Nuclear Theory
  3. Univ. of Washington, Seattle, WA (United States). Inst. for Nuclear Theory; Univ. of California, Santa Barbara, CA (United States). Kavli Inst. for Theoretical Physics; City College of New York, NY (United States). Dept. of Physics and University Center; Brookhaven National Lab. (BNL), Upton, NY (United States). RIKEN Research Center
  4. Justus Liebig Univ., Gieben (Germany); Univ. of Washington, Seattle, WA (United States). Dept. of Physics
  5. Univ. of Washington, Seattle, WA (United States). Inst. for Nuclear Theory
  6. Univ. of California, Santa Barbara, CA (United States). Inst. for Nuclear Theory; Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Center for Theoretical Physics
  7. College of William and Mary, Williamsburg, VA (United States). Dept. of Physics; Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

We used lattice QCD calculations with background magnetic fields to determine the magnetic moments of the octet baryons. Computations are performed at the physical value of the strange quark mass, and two values of the light quark mass, one corresponding to the SU(3) flavor-symmetric point, where the pion mass is mπ ~ 800 MeV, and the other corresponding to a pion mass mπ ~ 450 MeV. The moments are found to exhibit only mild pion-mass dependence when expressed in terms of appropriately chosen magneton units---the natural baryon magneton. This suggests that simple extrapolations can be used to determine magnetic moments at the physical point, and extrapolated results are found to agree with experiment within uncertainties. A curious pattern is revealed among the anomalous baryon magnetic moments which is linked to the constituent quark model, however, careful scrutiny exposes additional features. Relations expected to hold in the large-Nc limit of QCD are studied; and, in one case, the quark model prediction is significantly closer to the extracted values than the large-Nc prediction. The magnetically coupled Λ-Σ0 system is treated in detail at the SU(3)F point, with the lattice QCD results comparing favorably with predictions based on SU(3)F symmetry. Our analysis enables the first extraction of the isovector transition magnetic polarizability. The possibility that large magnetic fields stabilize strange matter is explored, but such a scenario is found to be unlikely.

Research Organization:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
NSF PHY11-25915; OCI-1053575; 0922770; PHY15-15738; AC02-05CH11231; SC00-10495; SC0011090; SC00-10337; FG02- 00ER41132; FG02-04ER41302; AC05-06OR23177; FG02-00ER41132; FIS2011-24154
OSTI ID:
1374984
Alternate ID(s):
OSTI ID: 1366331
Report Number(s):
JLAB-THY-16-2334; DOE/OR/23177-3999; arXiv:1609.03985; PRVDAQ
Journal Information:
Physical Review D, Vol. 95, Issue 11; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 20 works
Citation information provided by
Web of Science

References (103)

Physics of strongly magnetized neutron stars journal August 2006
Neutron in a strong magnetic field: Finite volume effects journal April 2014
Spin-flavor structure of large N c baryons journal April 1995
Detecting Stealth Dark Matter Directly through Electromagnetic Polarizability journal October 2015
Light hadron spectroscopy using domain wall valence quarks on an asqtad sea journal March 2009
Nucleon charges and electromagnetic form factors from 2 + 1 + 1 -flavor lattice QCD journal May 2014
Review of Particle Physics journal August 2014
Hadronic vacuum polarization and muon g 2 from magnetic susceptibilities on the lattice journal September 2015
Sigma term and strangeness content of octet baryons journal January 2012
Sea quark contributions to the electric polarizability of hadrons journal September 2014
Erratum: Sigma term and strangeness content of octet baryons [Phys. Rev. D 85 , 014509 (2012)] journal February 2016
Magnetic polarizability of pion journal October 2016
The magnetic moments of the octet baryons in quenched chiral perturbation theory journal March 2002
The proton and neutron magnetic moments in lattice QCD journal October 1982
Magnetic structure of light nuclei from lattice QCD journal December 2015
Improved continuum limit lattice action for QCD with wilson fermions journal September 1985
Reconciling the lattice background field method with nonrelativistic QED: Spinor case journal October 2014
Some consequences of unitary symmetry model journal March 1963
Flavor singlet physics in lattice QCD with background fields journal March 2005
Baryon magnetic moments in chiral perturbation theory journal August 1997
Lattice calculation of the magnetic moments of Δ and Ω baryons with dynamical clover fermions journal March 2009
Magnetic polarizability of hadrons from lattice QCD in the background field method journal February 2006
A schematic model of baryons and mesons journal February 1964
Nucleons as skyrme solitons with vector mesons: Electromagnetic and axial properties journal May 1987
How to calculate the elastic scattering matrix in two-dimensional quantum field theories by numerical simulation journal July 1990
Electric polarizability of neutral hadrons from dynamical lattice QCD ensembles journal April 2014
Tuning the strange quark mass in lattice simulations journal June 2010
Implementation of general background electromagnetic fields on a periodic hypercubic lattice journal October 2015
Nucleon-nucleon scattering parameters in the limit of SU(3) flavor symmetry journal August 2013
Baryon magnetic moments in the 1 / N c expansion with flavor symmetry breaking journal March 2012
Volume dependence of the energy spectrum in massive quantum field theories: II. Scattering states journal June 1986
Chiral perturbation theory analysis of the baryon magnetic moments reexamined journal May 1998
Symmetries of Baryons and Mesons journal February 1962
π± and ρ 0,± mesons in a strong magnetic field on the lattice journal May 2015
Electromagnetic Properties of Baryons in the Supermultiplet Scheme of Elementary Particles journal November 1964
Baryon magnetic moments in the expansion journal September 1994
A study of hadron electric polarizability in quenched lattice QCD journal September 1989
On-shell improved lattice gauge theories journal March 1985
Intrinsic strangeness and charm of the nucleon using improved staggered fermions journal September 2013
Hyperon electromagnetic properties in two-flavor chiral perturbation theory journal February 2010
Two nucleon systems at m π 450 MeV from lattice QCD journal December 2015
Baryon magnetic moments in large- N c chiral perturbation theory: Effects of the decuplet-octet mass difference and flavor symmetry breaking journal February 2014
Magnetic form factors of the octet baryons from lattice QCD and chiral extrapolation journal April 2014
Electrodynamic Properties of Baryons in the Unitary Symmetry Scheme journal April 1961
Electromagnetic and spin polarizabilities in lattice QCD journal June 2006
Flavor blindness and patterns of flavor symmetry breaking in lattice simulations of up, down, and strange quarks journal September 2011
Derivation of strong interactions from a gauge invariance journal August 1961
Baryon magnetic moments in the background field method journal October 2005
Composite vector particles in external electromagnetic fields journal January 2016
A lattice study of the glue in the nucleon journal August 2012
SU(6) and Electromagnetic Interactions journal October 1964
Chiral perturbation theory analysis of the baryon magnetic moments journal April 1993
Chiral perturbation theory and the magnetic moments of the baryon octet journal December 1974
Electroweak matrix elements in the two-nucleon sector from lattice QCD journal October 2004
Quenched chiral perturbation theory for baryons journal October 1996
Lattice Quantum-Chromodynamics Calculation of Some Baryon Magnetic Moments journal October 1982
Magnetic properties of the nucleon in a uniform background field journal February 2014
Light nuclei and hypernuclei from quantum chromodynamics in the limit of SU(3) flavor symmetry journal February 2013
Feynman-Hellmann approach to the spin structure of hadrons journal July 2014
Two-particle states on a torus and their relation to the scattering matrix journal May 1991
A planar diagram theory for strong interactions journal April 1974
Unitary Limit of Two-Nucleon Interactions in Strong Magnetic Fields journal March 2016
A property of electric and magnetic flux in non-Abelian gauge theories journal January 1979
Extracting electric polarizabilities from lattice QCD journal May 2009
Extracting nucleon magnetic moments and electric polarizabilities from lattice QCD in background electric fields journal March 2010
Electric polarizability of neutral hadrons from lattice QCD journal August 2005
Ab initio Calculation of the n p d γ Radiative Capture Process journal September 2015
Strange baryon electromagnetic form factors and SU(3) flavor symmetry breaking journal April 2009
Viability of lattice perturbation theory journal September 1993
Chiral structure of the nucleon journal December 1992
Baryons in partially quenched chiral perturbation theory journal April 2002
Nucleons in two-flavor partially-quenched chiral perturbation theory journal October 2002
Magnetic Moments of Light Nuclei from Lattice Quantum Chromodynamics journal December 2014
Baryon octet magnetic moments in chiral perturbation theory: More on the importance of the decuplet journal July 2000
The Chroma Software System for Lattice QCD journal March 2005
Quenched chiral perturbation theory for baryons journal April 1994
The Proton and Neutron Magnetic Moments in Lattice qcd text January 1982
Feynman-Hellmann approach to the spin structure of hadrons text January 2014
Review of Particle Physics text January 2008
A Schematic Model of Baryons and Mesons journal August 2019
Electric polarizability of neutral hadrons from dynamical lattice QCD ensembles
  • Lujan, Michael; Alexandru, Andrei; Freeman, Walter
  • Proceedings of The 32nd International Symposium on Lattice Field Theory — PoS(LATTICE2014) https://doi.org/10.22323/1.214.0153
conference May 2015
Review of Particle Physics text January 2018
Review of Particle Physics text January 2012
Extracting Electric Polarizabilities from Lattice QCD text January 2009
Hyperon Electromagnetic Properties in Two-Flavor Chiral Perturbation Theory text January 2009
Extracting Nucleon Magnetic Moments and Electric Polarizabilities from Lattice QCD in Background Electric Fields text January 2010
Tuning the strange quark mass in lattice simulations text January 2010
Flavour blindness and patterns of flavour symmetry breaking in lattice simulations of up, down and strange quarks text January 2011
A Lattice Study of the Glue in the Nucleon text January 2012
Nucleon-Nucleon Scattering Parameters in the Limit of SU(3) Flavor Symmetry text January 2013
Magnetic form factors of the octet baryons from lattice QCD and chiral extrapolation text January 2014
Magnetic moments of light nuclei from lattice quantum chromodynamics text January 2014
The Magnetic Structure of Light Nuclei from Lattice QCD text January 2015
Hadronic vacuum polarization and muon g-2 from magnetic susceptibilities on the lattice text January 2015
On the Implementation of General Background Electromagnetic Fields on a Periodic Hypercubic Lattice text January 2015
Magnetic polarizability of pion text January 2015
Electroweak Matrix Elements in the Two-Nucleon Sector from Lattice QCD text January 2004
Electric Polarizability of Neutral Hadrons from Lattice QCD text January 2004
The Chroma Software System for Lattice QCD text January 2004
Flavour singlet physics in lattice QCD with background fields text January 2004
Magnetic polarizability of hadrons from lattice QCD in the background field method text January 2005
Electromagnetic and spin polarisabilities in lattice QCD text January 2006
Spin-Flavor Structure of Large N Baryons text January 1994

Cited By (2)

Hyperons: the strange ingredients of the nuclear equation of state journal September 2018
QCD on a small circle text January 2017

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