Eta-Helium Quasi-Bound States

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dc.creatorWillis, N.
dc.creatorBornec, Y. Le
dc.creatorZghiche, A.
dc.creatorWilkin, C.
dc.creatorWurzinger, R.
dc.creatorBing, O.
dc.creatorBoivin, M.
dc.creatorCourtat, P.
dc.creatorGacougnolle, R.
dc.creatorHibou, F.
dc.creatorMartin, J. M.
dc.creatorPlouin, F.
dc.creatorTatischeff, B.
dc.creatorYonnet, J.
dc.date1997-03-12
dc.date.accessioned2026-07-07T12:04:06Z
dc.date.available2026-07-07T12:04:06Z
dc.descriptionThe cross section and tensor analysing power t_20 of the d\vec{d}->eta 4He reaction have been measured at six c.m. momenta, 10 < p(eta) < 90 MeV/c. The threshold value of t_20 is consistent with 1/\sqrt{2}, which follows from parity conservation and Bose symmetry. The much slower momentum variation observed for the reaction amplitude, as compared to that for the analogous pd->eta 3He case, suggests strongly the existence of a quasi-bound state in the eta-4He system and optical model fits indicate that this probably also the case for eta-3He.
dc.descriptionLaTeX, uses elsart.sty, 10 pages, 3 Postscript figures, Submitted to Physics Letters B
dc.identifierhttps://arxiv.org/abs/nucl-ex/9703002
dc.identifierhttp://arxiv.org/abs/nucl-ex/9703002
dc.identifierPhys.Lett.B406:14-19,1997
dc.identifierdoi:10.1016/S0370-2693(97)00650-3
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/208017
dc.subjectNuclear Experiment
dc.subjectHigh Energy Physics - Experiment
dc.subjectNuclear Theory
dc.titleEta-Helium Quasi-Bound States
dc.typetext

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