6533b82efe1ef96bd129440b

RESEARCH PRODUCT

The Electromagnetic Polarizabilities of the Proton and the Scalar-Isoscalar gamma gamma --> pi pi Amplitude

José Bernabeu AlberolaRolf Tarrach

subject

Nuclear TheoryFísica

description

In a dispersive approach to the calculation of the electromagnetic polarizabilities of the proton, the sensitivity to the annihilation channel input is analyzed. It is shown that the isoscalar s wave absorptive part gives the overwhelming contribution. The connection with the poorly known γγ→ππ amplitude is established and some numerical estimates are presented.

10.1016/0370-2693(77)90851-6http://hdl.handle.net/10550/53222