The Nambu-Jona-Lasinio model in the light of chiral perturbation theory revisited - INSPIRE

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The Nambu-Jona-Lasinio model in the light of chiral perturbation theory revisited

Veronique Bernard
(
- Strasbourg, CRN
)
,
Ulf G. Meissner
(
- Bern U.
)

Apr, 1991

5 pages

Published in:

Phys.Lett.B 266 (1991) 403-407

Published: 1991

DOI:

10.1016/0370-2693(91)91058-4

Report number:

BUTP-91-13-BERN,
CRN-PHTH-91-06

View in:

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Abstract: (Elsevier)

We evaluate the scalar form factor of the pion within the framework of the SU(2) Nambu-Jona-Lasinio model. We show that this quantity puts powerful constraints on the parameters of the model. We demonstrate that together with a reasonable description of the scalar pion form factor one finds a quark mass dependence of the pion mass and decay constant in agreement with rigorous results from chiral perturbation theory.

pi: form factor
form factor: pi
pi: mass
mass: pi
pi: decay constant
decay constant: pi
form factor: scalar
scalar: form factor
quark: mass
mass: quark

References(22)

Figures(0)

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