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Excited state baryon spectroscopy from lattice QCD

Robert G. Edwards
(
- Jefferson Lab
)
,
Jozef J. Dudek
(
- Jefferson Lab and
- Old Dominion U.
)
,
David G. Richards
(
- Jefferson Lab
)
,
Stephen J. Wallace
(
- Maryland U.
)

Apr, 2011

29 pages

Published in:

Phys.Rev.D 84 (2011) 074508

e-Print:

1104.5152 [hep-ph]

DOI:

10.1103/PhysRevD.84.074508

Report number:

JLAB-THY-11-1370

View in:

reference search492 citations

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Abstract: (arXiv)

We present a calculation of the Nucleon and Delta excited state spectrum on dynamical anisotropic clover lattices. A method for operator construction is introduced that allows for the reliable identification of the continuum spins of baryon states, overcoming the reduced symmetry of the cubic lattice. Using this method, we are able to determine a spectrum of single-particle states for spins up to and including J = 7/2, of both parities, the first time this has been achieved in a lattice calculation. We find a spectrum of states identifiable as admixtures of SU(6) x O(3) representations and a counting of levels that is consistent with the non-relativistic

qqq

constituent quark model. This dense spectrum is incompatible with quark-diquark model solutions to the 'missing resonance problem' and shows no signs of parity doubling of states.

Note:

29 pages, 18 figures

12.38.Gc
14.20.Gk
baryon: excited state
baryon: spin
quark model: nonrelativistic
baryon: hadron spectroscopy
Delta: excited state
nucleon resonance
parity: doubling
lattice field theory

References(46)

Figures(8)

Light hadron spectroscopy and pseudoscalar decay constants

Christian Hoelbling
(
- Wuppertal U.
)

- PoS LATTICE2010 (2010) 011
•
e-Print:
- 1102.0410

Ordering of Spin- $\frac{1}{2}$ Excitations of the Nucleon in Lattice QCD

M.S. Mahbub
(
- Adelaide U. and
- Rajshahi U.
)
,
Waseem Kamleh
(
- Adelaide U.
)
,
Derek B. Leinweber
(
- Adelaide U.
)
,
Alan O Cais
(
- Adelaide U. and
- Cyprus U.
)
,
Anthony G. Williams
(
- Adelaide U.
)

- Phys.Lett.B 693 (2010) 351-357
•
e-Print:
- 1007.4871
•
DOI:
- 10.1016/j.physletb.2010.08.049

Positive-parity Excited-states of the Nucleon in Quenched Lattice QCD

M.S. Mahbub
(
- Adelaide U. and
- Rajshahi U.
)
,
Alan O. Cais
(
- Adelaide U. and
- Cyprus Inst.
)
,
Waseem Kamleh
(
- Adelaide U.
)
,
Derek B. Leinweber
(
- Adelaide U.
)
,
Anthony G. Williams
(
- Adelaide U.
)

- Phys.Rev.D 82 (2010) 094504
•
e-Print:
- 1004.5455
•
DOI:
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BGR [Bern-Graz-Regensburg]

Collaboration

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Georg P. Engel
(
- Graz U.
)

et al.

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)
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- Beijing, Inst. High Energy Phys.
)
,
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(
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)

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Excited State Nucleon Spectrum with Two Flavors of Dynamical Fermions

John M. Bulava
(
- Carnegie Mellon U.
)
,
Robert G. Edwards
(
- Jefferson Lab
)
,
Eric Engelson
(
- Maryland U.
)
,
Justin Foley
(
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)
,
Balint Joo
(
- Jefferson Lab
)

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•
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•
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•
DOI:
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Hadron Spectrum

Collaboration

•

Huey-Wen Lin
(
- Jefferson Lab
)

et al.

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e-Print:
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•
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Christopher Michael
(
- Liverpool U.
)

- Nucl.Phys.B 259 (1985) 58-76
•
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Martin Luscher
(
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)
,
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)

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Benoit Blossier
(
- DESY, Zeuthen and
- Orsay, LPT
)
,
Michele Della Morte
(
- CERN and
- Mainz U., Inst. Kernphys.
)
,
Georg von Hippel
(
- DESY, Zeuthen
)
,
Tereza Mendes
(
- DESY, Zeuthen and
- Sao Paulo U., Sao Carlos
)
,
Rainer Sommer
(
- DESY, Zeuthen
)

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•
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•
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•
e-Print:
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•
DOI:
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Highly excited and exotic meson spectrum from dynamical lattice QCD

Jozef J. Dudek
(
- Jefferson Lab and
- Old Dominion U.
)
,
Robert G. Edwards
(
- Jefferson Lab
)
,
Michael J. Peardon
(
- Trinity Coll., Dublin
)
,
David G. Richards
(
- Jefferson Lab
)
,
Christopher E. Thomas
(
- Jefferson Lab
)

- Phys.Rev.Lett. 103 (2009) 262001
•
e-Print:
- 0909.0200
•
DOI:
- 10.1103/PhysRevLett.103.262001

Toward the excited meson spectrum of dynamical QCD

Jozef J. Dudek
(
- Jefferson Lab and
- Old Dominion U.
)
,
Robert G. Edwards
(
- Jefferson Lab
)
,
Michael J. Peardon
(
- Trinity Coll., Dublin
)
,
David G. Richards
(
- Jefferson Lab
)
,
Christopher E. Thomas
(
- Jefferson Lab
)

- Phys.Rev.D 82 (2010) 034508
•
e-Print:
- 1004.4930
•
DOI:
- 10.1103/PhysRevD.82.034508

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•
e-Print:
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•
DOI:
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A Novel quark-field creation operator construction for hadronic physics in lattice QCD

Hadron Spectrum

Collaboration

•

Michael Peardon
(
- Trinity Coll., Dublin
)

et al.

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•
e-Print:
- 0905.2160
•
DOI:
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Low and high spin mesons from N(f) = 2 Clover-Wilson lattices

Tommy Burch
(
- Regensburg U.
)
,
Christian Hagen
(
- Regensburg U.
)
,
Martin Hetzenegger
(
- Regensburg U.
)
,
Andreas Schafer
(
- Regensburg U.
)

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•
e-Print:
- 0903.2358
•
DOI:
- 10.1103/PhysRevD.79.114503

Derivative sources in lattice spectroscopy of excited mesons

Christof Gattringer
(
- Graz U.
)
,
Leonid Ya. Glozman
(
- Graz U.
)
,
C.B. Lang
(
- Graz U.
)
,
Daniel Mohler
(
- Graz U.
)
,
Sasa Prelovsek
(
- Ljubljana U. and
- Stefan Inst., Ljubljana
)

- Phys.Rev.D 78 (2008) 034501
•
e-Print:
- 0802.2020
•
DOI:
- 10.1103/PhysRevD.78.034501

Excited hadrons on the lattice: Mesons

Tommy Burch
(
- Regensburg U. and
- Graz U.
)
,
Christof Gattringer
(
- Regensburg U. and
- Graz U.
)
,
Leonid Ya. Glozman
(
- Regensburg U. and
- Graz U.
)
,
Christian Hagen
(
- Regensburg U. and
- Graz U.
)
,
C.B. Lang
(
- Regensburg U. and
- Graz U.
)

et al.

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•
e-Print:
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•
DOI:
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Spatially improved operators for excited hadrons on the lattice

Bern-Graz-Regensburg

Collaboration

•

Tommy Burch
(
- Regensburg U.
)

et al.

- Phys.Rev.D 70 (2004) 054502
•
e-Print:
- hep-lat/0405006
•
DOI:
- 10.1103/PhysRevD.70.054502

Charmonium excited state spectrum in lattice QCD

Jozef J. Dudek
(
- Jefferson Lab and
- Old Dominion U.
)
,
Robert G. Edwards
(
- Jefferson Lab
)
,
Nilmani Mathur
(
- Jefferson Lab
)
,
David G. Richards
(
- Jefferson Lab
)

- Phys.Rev.D 77 (2008) 034501
•
e-Print:
- 0707.4162
•
DOI:
- 10.1103/PhysRevD.77.034501

Improved stochastic estimation of quark propagation with Laplacian Heaviside smearing in lattice QCD

Colin Morningstar
(
- Carnegie Mellon U.
)
,
John Bulava
(
- NIC, Zeuthen and
- DESY, Zeuthen
)
,
Justin Foley
(
- Utah U.
)
,
Keisuke J. Juge
(
- U. Pacific, Stockton
)
,
David Lenkner
(
- Carnegie Mellon U.
)

et al.

- Phys.Rev.D 83 (2011) 114505
•
e-Print:
- 1104.3870
•
DOI:
- 10.1103/PhysRevD.83.114505

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