期刊
PHYSICS LETTERS B
卷 590, 期 3-4, 页码 258-264出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2004.03.080
关键词
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We derive an asymptotic formula a la Luscher for the finite-volume correction to the pion decay constant: this is expressed as an integral over the <3pi\A(mu)\0> amplitude after proper subtraction of the pion pole contribution. We analyze the formula numerically at leading and next-to-leading order in the chiral expansion. (C) 2004 Elsevier B.V. All rights reserved.
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