Pion (Kaon) and sigma polarizabilities

Baldini, R.; Bellucci, Stefano

doi:10.1007/3-540-59279-2_74

Cited by 1 publication

(1 citation statement)

References 21 publications

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“…In contrast to the cross section for pair production at low energies, the polarizabilities depend however in an essential way on the LECs h r ± . For a discussion of the experimental situation I refer to the specialized literature (Gasser, 1994b;Baldini and Bellucci, 1994;Portolés and Pennington, 1994).…”

Section: γγ → π 0 πmentioning

confidence: 99%

Chiral perturbation theory

Bijnens¹,

Ecker²,

Gasser³

1995

Progress in Particle and Nuclear Physics

470

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The main elements and methods of chiral perturbation theory, the effective field theory of the Standard Model below the scale of spontaneous chiral symmetry breaking, are summarized. Applications to the interactions of mesons and baryons at low energies are reviewed, with special emphasis on developments of the last three years. Among the topics covered are the strong, electromagnetic and semileptonic weak interactions of mesons at and beyond next--to--leading order in the chiral expansion, nonleptonic weak interactions of mesons, virtual photon corrections and the meson--baryon system. The discussion is limited to processes at zero temperature, for infinite volume and with at most one baryon.Comment: 84 pages, Latex, 11 PostScript figures (in separate file) embedded with epsfig.sty, complete ps file (compressed, uuencoded, 0.6 MB) available via email on request; to appear in Progr. Part. Nucl. Phys., vol. 3

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Section: γγ → π 0 πmentioning

confidence: 99%