Improved dispersive analysis of the scalar form factor of the nucleon
| Data(s) |
2013
|
|---|---|
| Resumo |
We present a coupled system of integral equations for the pp → ¯NN and ¯K K → ¯N N S-waves derived from Roy–Steiner equations for pion–nucleon scattering. We discuss the solution of the corresponding two-channel Muskhelishvili–Omnès problem and apply the results to a dispersive analysis of the scalar form factor of the nucleon fully including ¯KK intermediate states. In particular, we determine the corrections Ds and DD, which are needed for the extraction of the pion– nucleon s term from pN scattering, and show that the difference DD −Ds = (−1.8±0.2)MeV is insensitive to the input pN parameters. |
| Formato |
application/pdf |
| Identificador |
http://boris.unibe.ch/42582/1/CD12_069.pdf Hoferichter, Martin; Ditsche, Christoph; Kubis, Bastian; Meissner, Ulf-G. (2013). Improved dispersive analysis of the scalar form factor of the nucleon. PoS - proceedings of science, CD12, 069. Scuola Internazionale Superiore di Studi Avanzati SISSA doi:10.7892/boris.42582 urn:issn:1824-8039 |
| Idioma(s) |
eng |
| Publicador |
Scuola Internazionale Superiore di Studi Avanzati SISSA |
| Relação |
http://boris.unibe.ch/42582/ http://pos.sissa.it/archive/conferences/172/069/CD12_069.pdf |
| Direitos |
info:eu-repo/semantics/openAccess |
| Fonte |
Hoferichter, Martin; Ditsche, Christoph; Kubis, Bastian; Meissner, Ulf-G. (2013). Improved dispersive analysis of the scalar form factor of the nucleon. PoS - proceedings of science, CD12, 069. Scuola Internazionale Superiore di Studi Avanzati SISSA |
| Palavras-Chave | #530 Physics |
| Tipo |
info:eu-repo/semantics/conferenceObject info:eu-repo/semantics/publishedVersion NonPeerReviewed |
