Reply to 'Comment on 'Polarizability of the pion: No conflict between dispersion theory and chiral perturbation theory''

Journal Article · Mon Feb 15 00:00:00 EST 2010 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.81.029802· OSTI ID:21386647

Pasquini, B; Drechsel, D; Scherer, S ^[1]

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1. Dipartimento di Fisica Nucleare e Teorica, Universita degli Studi di Pavia, and Istituto Nazionale di Fisica Nucleare, Sezione di Pavia, I-27100 Pavia (Italy)

We show that the alleged discrepancies between chiral perturbation theory (ChPT) and dispersion theory, reported for the polarizability of the pion by Fil'kov and Kashevarov [Phys. Rev. C 72, 035211 (2005)], result from applying dispersion theory to nonanalytic functions.

• OSTI ID: 21386647
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 81, Issue 2; Other Information: DOI: 10.1103/PhysRevC.81.029802; (c) 2010 The American Physical Society; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHIRALITY
DISPERSION RELATIONS
DISPERSIONS
FORECASTING
PERTURBATION THEORY
PIONS
POLARIZABILITY
SUM RULES
BOSONS
ELECTRICAL PROPERTIES
ELEMENTARY PARTICLES
EQUATIONS
HADRONS
MESONS
PARTICLE PROPERTIES
PHYSICAL PROPERTIES
PSEUDOSCALAR MESONS