Near threshold eta meson production in the d+d->alpha+eta reaction

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dc.creatorWronska, A.
dc.creatorHejny, V.
dc.creatorWilkin, C.
dc.creatorDymov, S.
dc.creatorHanhart, C.
dc.creatorKomarov, V.
dc.creatorKoch, H. R.
dc.creatorKulikov, A.
dc.creatorMagiera, A.
dc.creatorMersmann, T.
dc.creatorMikirtytchiants, S.
dc.creatorOhm, H.
dc.creatorPrasuhn, D.
dc.creatorSchleichert, R.
dc.creatorStein, H. J.
dc.creatorStroeher, H.
dc.date2005-10-20
dc.date2006-02-01
dc.date.accessioned2026-07-07T11:59:56Z
dc.date.available2026-07-07T11:59:56Z
dc.descriptionThe d+d->alpha+eta reaction has been investigated near threshold using the ANKE facility at COSY-Juelich. Both total and differential cross sections have been measured at two excess energies, Q=2.6 MeV and 7.7 MeV, with a subthreshold measurement being undertaken at Q=-2.6 MeV to study the physical background. While consistent with isotropy at the lower energy, the angular distribution reveals a pronounced anisotropy at the higher one, indicating the presence of higher partial waves. Options for the decomposition into partial amplitudes and their consequences for determination of the s-wave eta-alpha scattering length are discussed.
dc.description8pp, fig.3 added, normalisation in eq.4.1 corrected
dc.identifierhttps://arxiv.org/abs/nucl-ex/0510056
dc.identifierhttp://arxiv.org/abs/nucl-ex/0510056
dc.identifierEur.Phys.J.A26:421-428,2005
dc.identifierdoi:10.1140/epja/i2005-10185-0
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/206743
dc.subjectNuclear Experiment
dc.titleNear threshold eta meson production in the d+d->alpha+eta reaction
dc.typetext

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