s-wave pion nucleon scattering lengths from pi N, pionic hydrogen, and deuteron data
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s-wave pion nucleon scattering lengths from pi N, pionic hydrogen, and deuteron data

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s-wave pion nucleon scattering lengths from pi N, pionic hydrogen, and deuteron data

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dc.contributor.author Döring, Michael
dc.contributor.author Oset Báguena, Eulogio
dc.contributor.author Vicente Vacas, Manuel José
dc.date.accessioned 2014-10-29T08:32:37Z
dc.date.available 2014-10-29T08:32:37Z
dc.date.issued 2004
dc.identifier.uri http://hdl.handle.net/10550/39461
dc.description.abstract The isoscalar and isovector scattering lengths (b(0),b(1)) are determined using a unitarized coupled channel approach based on chiral Lagrangians. Using experimental values of pionic hydrogen and deuterium as well as low energy piN scattering data, the free parameters of the model are calculated. Isospin violation is incorporated to a certain extent by working with physical particle masses. For the deuterium scattering length a(pi)(-)d new significant corrections concerning real and imaginary parts are evaluated, putting new constraints from pi(-)d scattering on the values of (b(0),b(1)). In particular, dispersion corrections, the influence of the Delta(1232) resonance, crossed terms and multiple scattering in a Faddeev approach are considered.
dc.language.iso eng
dc.relation.ispartof Physical Review C, 2004, vol. 70, num. 4, p. 045203-1-045203-18
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Döring, Michael Oset Báguena, Eulogio Vicente Vacas, Manuel José 2004 s-wave pion nucleon scattering lengths from pi N, pionic hydrogen, and deuteron data Physical Review C 70 4 045203-1 045203-18
dc.subject Física
dc.title s-wave pion nucleon scattering lengths from pi N, pionic hydrogen, and deuteron data
dc.type info:eu-repo/semantics/article
dc.date.updated 2014-10-29T08:32:37Z
dc.identifier.doi http://dx.doi.org/10.1103/PhysRevC.70.045203
dc.identifier.idgrec 017661

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