Progress toward the chiral regime in lattice QCD calculations of the neutron electric polarizability

Details Progress toward the chiral regime in lattice QCD calculations of the neutron electric polarizability Progress toward the chiral regime in lattice QCD calculations of the neutron electric polarizability

2010-01-27

arxiv.org/abs/1001.5044v1

PoS (LAT2009) 128

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages, 4 figures; talk presented at the 27th International Symposium on Lattice Field Theory (Lattice 2009), Beijing, China,

Scientific paper

The static electric polarizability of the neutron is evaluated using
domain-wall valence quarks on a MILC asqtad sea quark ensemble corresponding to
a pion mass of m_pi = 357 MeV. Both connected as well as disconnected
contributions are included. The result is quantitatively compatible with the
expectation from chiral effective theory.

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