New insights into the neutron electric dipole moment - INSPIRE

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New insights into the neutron electric dipole moment

K. Ottnad
(
- Bonn U., HISKP and
- Bonn U.
)
,
B. Kubis
(
- Bonn U., HISKP and
- Bonn U.
)
,
U.-G. Meissner
(
- Bonn U., HISKP and
- Bonn U. and
- Julich, Forschungszentrum and
- JCHP, Julich
)
,
F.-K. Guo
(
- Julich, Forschungszentrum and
- JCHP, Julich
)

Nov, 2009

9 pages

Published in:

Phys.Lett.B 687 (2010) 42-47

e-Print:

0911.3981 [hep-ph]

DOI:

10.1016/j.physletb.2010.03.005

Report number:

HISKP-TH-09-32,
FZJ-IKP-TH-2009-33

View in:

ADS Abstract Service

reference search98 citations

Citations per year

Abstract: (Elsevier)

We analyze the CP-violating electric dipole form factor of the nucleon in the framework of covariant baryon chiral perturbation theory. We give a new upper bound on the vacuum angle, |θ0|≲2.5×10−10 . The quark mass dependence of the electric dipole moment is discussed and compared to lattice QCD data. We also perform the matching between its representations in the three- and two-flavor theories.

12.39.Fe
11.30.Er
14.20.Dh
CP violation
Chiral Lagrangians
Neutron electric dipole moment
perturbation theory: chiral
form factor: dipole
n: electric moment
lattice field theory

References(26)

Figures(14)

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(
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Bastian Kubis
(
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)
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(
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)
,
Christoph Haefeli
(
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)
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(
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)
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Matthias Frink
(
- Julich, Forschungszentrum and
- Bonn U., HISKP
)
,
Ulf-G. Meissner
(
- Bonn U., HISKP and
- Julich, Forschungszentrum
)

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•
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•
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