Role of the Delta(1232) in pion-deuteron scattering at threshold within chiral effective field theory

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dc.creatorBaru, V.
dc.creatorHaidenbauer, J.
dc.creatorHanhart, C.
dc.creatorKudryavtsev, A.
dc.creatorLensky, V.
dc.creatorMeißner, U. -G.
dc.date2007-06-27
dc.date.accessioned2026-07-07T11:41:22Z
dc.date.available2026-07-07T11:41:22Z
dc.descriptionWe investigate the role of the delta isobar in the reaction $πd\to πd$ at threshold in chiral effective field theory. We discuss the corresponding power counting and argue that this calculation completes the evaluation of diagrams up to the order (m_pi/M_N)^(3/2), with m_pi (M_N) for the pion (nucleon) mass. The net effect of all delta contributions at this order to the pion-deuteron scattering length is (2.4 +/- 0.4)x 10^(-3) m_pi^{-1}.
dc.description11 pages
dc.identifierhttps://arxiv.org/abs/0706.4023
dc.identifierhttp://arxiv.org/abs/0706.4023
dc.identifierPhys.Lett.B659:184-191,2008
dc.identifierdoi:10.1016/j.physletb.2007.10.063
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/200510
dc.subjectNuclear Theory
dc.subjectHigh Energy Physics - Phenomenology
dc.titleRole of the Delta(1232) in pion-deuteron scattering at threshold within chiral effective field theory
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