Isospin-breaking corrections in the pion-deuteron scattering length

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dc.creatorMeißner, Ulf-G.
dc.creatorRaha, Udit
dc.creatorRusetsky, Akaki
dc.date2005-12-11
dc.date.accessioned2026-07-07T10:46:49Z
dc.date.available2026-07-07T10:46:49Z
dc.descriptionIt is shown that isospin-breaking corrections to the pion-deuteron scattering length can be very large, because of the vanishing of the isospin-symmetric contribution to this scattering length at leading order in chiral perturbation theory. We further demonstrate that these corrections can explain the bulk of the discrepancy between the recent experimental data on pionic hydrogen and pionic deuterium. We also give the first determination of the electromagnetic low-energy constant f1.
dc.description4 pages, 1 postscript figure, uses REVTEX style
dc.identifierhttps://arxiv.org/abs/nucl-th/0512035
dc.identifierhttp://arxiv.org/abs/nucl-th/0512035
dc.identifierPhys.Lett.B639:478-482,2006
dc.identifierdoi:10.1016/j.physletb.2006.07.001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/183363
dc.subjectNuclear Theory
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Experiment
dc.titleIsospin-breaking corrections in the pion-deuteron scattering length
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