Diquark correlations in a hadron from lattice QCD - INSPIRE

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Diquark correlations in a hadron from lattice QCD

Jeremy Green
(
- MIT
)
,
Michael Engelhardt
(
- New Mexico State U.
)
,
John Negele
(
- MIT
)
,
Patrick Varilly
(
- UC, Berkeley
)

Apr 20, 2012

3 pages

Part of Proceedings, 19th International Conference on Particles and Nuclei (PANIC 11) : Cambridge, USA, July 24-29, 2011, 172-174

Published in:

AIP Conf.Proc. 1441 (2012) 1, 172-174

Contribution to:

- PANIC 11
, 172-174

Published: Apr 20, 2012

DOI:

10.1063/1.3700503

reference search4 citations

Citations per year

Abstract: (AIP)

Using lattice QCD, a diquark can be studied in a gauge-invariant manner by binding it to a static quark in a heavylight-light hadron. We compute the simultaneous two-quark density of a diquark, including corrections for periodic boundary conditions. We define a correlation function to isolate the intrinsic correlations of the diquark and reduce the effects caused by the presence of the static quark. Away from the immediate vicinity of the static quark, the diquark has a consistent shape, with much stronger correlations seen in the good (scalar) diquark than in the bad (axial-vector) diquark. We present results for mI = 293 MeV as well as mI = 940 MeV, and discuss the behavior as the pion mass changes.

quark: static
diquark: correlation
pi: mass
invariance: gauge
lattice field theory
hadron
correlation function
boundary condition
axial-vector
density

References(15)

Figures(0)

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