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Bernabeu Alberola, José; Tarrach, Rolf | |||
Aquest document és un/a article, creat/da en: 1977 | |||
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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. | |||
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