EPJ Web of Conferences
Volume 3, 201019th International IUPAP Conference on Few-Body Problems in Physics
|Number of page(s)||10|
|Published online||12 April 2010|
Renormalization of Proton-Proton Scattering and Proton-Proton Fusion with Chiral Two Pion Exchange: Regulator Independent Results.
Institut für Kernphysik and Jülich Center for Hadron Physics,
Forschungszentrum Jülich, DE-52424
( Germany )
a e-mail: email@example.com
The renormalization of the s-wave proton-proton scattering amplitude with chiral two-pion exchange is considered up to next-to-next-to-leading order in the chiral expansion. The resulting phase shifts accurately describe the s-wave phases up to kcm ≃ 200 MeV. The eﬀect and possible improvements coming from ﬁnite cut-oﬀs or spectral function regularization are considered. Proton-proton fusion is calculated with the resulting renormalized wave functions in a regulator independent way at next-to-next-to-leading order (N2LO).
© Owned by the authors, published by EDP Sciences, 2010
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