RPA correlation effects in radiative pion capture |
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| Institution: | Dip. di Física, Università di Trento, 38050 Povo, Italy;Dept. de Física Atómica i Nuclear and IFIC (Universitat de València-CSIC), 46100Burjassot, Spain;Dept. Física Teórica (Universitat de València), 46100 Burjassot, Spain |
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| Abstract: | A sum rule approach to radiative pion capture is given in terms of the energy-weighted and inverse-energy weighted sum rules. They are evaluated with RPA accuracy for Skyrme-like interactions. The static polarizabilities of the dipole, quadrupole and octupole isovector modes turn out to be the relevant quantities to determine the total branching ratios and mean photon energies. |
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