Contact terms in γγ-production of baryons

E. Bagán, A. Bramon, F. Cornet

Research output: Contribution to journalArticleResearchpeer-review


Contact terms - similar to those dominating the γγ → π+π- cross section for Wγγ ≲ 1 GeV - are found to be relevant when dealing with σ((γγ → Δp+Δp → NNπ) near threshold. This cross section is predicted to be much larger than observed for γγ → pp. From their study and comparison new features of hadron dynamics could be learned. © 1984.
Original languageEnglish
Pages (from-to)297-301
JournalPhysics Letters B
Issue number3-4
Publication statusPublished - 20 Sep 1984


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