Photoproduction of Lambda(1405) and Sigma^{0}(1385) on the proton at E_γ= 1.5-2.4 GeV

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dc.creatorNiiyama, M.
dc.creatorFujimura, H.
dc.creatorAhn, D. S.
dc.creatorAhn, J. K.
dc.creatorAjimura, S.
dc.creatorBhang, H. C.
dc.creatorChang, T. H.
dc.creatorChang, W. C.
dc.creatorChen, J. Y.
dc.creatorDaté, S.
dc.creatorFukui, S.
dc.creatorFunahashi, H.
dc.creatorHicks, K.
dc.creatorHorie, K.
dc.creatorHotta, T.
dc.creatorImai, K.
dc.creatorIshikawa, T.
dc.creatorKato, Y.
dc.creatorKino, K.
dc.creatorKohri, H.
dc.creatorMakino, S.
dc.creatorMatsumura, T.
dc.creatorMibe, T.
dc.creatorMiwa, K.
dc.creatorMiyabe, M.
dc.creatorMuramatsu, N.
dc.creatorNakamura, M.
dc.creatorNakano, T.
dc.creatorNakatsugawa, Y.
dc.creatorOhashi, Y.
dc.creatorOshuev, D. S.
dc.creatorSaito, N.
dc.creatorSawada, T.
dc.creatorSugaya, Y.
dc.creatorSumihama, M.
dc.creatorTang, J. L.
dc.creatorUchida, M.
dc.creatorWang, C. W.
dc.creatorYorita, T.
dc.creatorYosoi, M.
dc.date2008-05-27
dc.date.accessioned2026-07-07T11:51:08Z
dc.date.available2026-07-07T11:51:08Z
dc.descriptionDifferential cross sections for $γp \to K^+Λ(1405)$ and $γp \to K^+Σ^0(1385)$ reactions have been measured in the photon energy range from 1.5 to 2.4 GeV and the angular range of $0.8<\cos(Θ)<1.0$ for the $K^+$ scattering angle in the center-of-mass system. This data is the first measurement of the $Λ(1405)$ photoproduction cross section. The lineshapes of \LamS measured in $Σ^+π^-$ and $Σ^-π^+$ decay modes were different with each other, indicating a strong interference of the isospin 0 and 1 terms of the $Σπ$ scattering amplitudes. The ratios of \LamS production to \SigS production were measured in two photon energy ranges: near the production threshold ($1.5<E_γ<2.0$ GeV) and far from it ($2.0 <E_γ<2.4$ GeV). The observed ratio decreased in the higher photon energy region, which may suggest different production mechanisms and internal structures for these hyperon resonances.
dc.identifierhttps://arxiv.org/abs/0805.4051
dc.identifierhttp://arxiv.org/abs/0805.4051
dc.identifierPhys.Rev.C78:035202,2008
dc.identifierdoi:10.1103/PhysRevC.78.035202
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/203793
dc.subjectHigh Energy Physics - Experiment
dc.titlePhotoproduction of Lambda(1405) and Sigma^{0}(1385) on the proton at E_γ= 1.5-2.4 GeV
dc.typetext

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