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Properties of the Lambda[1670] 1/2- Resonance (CROSBI ID 93604)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Manley, D.M. ; Abaev, V.V. ; Allgover, C. ; Bekrenev, V. ; Briscoe, W.J. ; Clajus, M. ; Comfort, J.R. ; Craig, K. ; Grosnick, D. ; Isenhower, D. et al. Properties of the Lambda[1670] 1/2- Resonance // Physical review letters, 88 (2002), 012002-x

Podaci o odgovornosti

Manley, D.M. ; Abaev, V.V. ; Allgover, C. ; Bekrenev, V. ; Briscoe, W.J. ; Clajus, M. ; Comfort, J.R. ; Craig, K. ; Grosnick, D. ; Isenhower, D. ; Knecht, H. ; Koetke, D. ; Koulbardis, A. ; Kozlenko, N. ; Kruglov, S. ; Lolos, G.J. ; Lopatin, I. ; Manweiler, R. ; Marušić, Aljoša ; McDonald, S. ; Nefkens, B.M.K. ; Olmsted, J. ; Papandreu, Y. ; Peaslee, D. ; Phaisangittisakul, N. ; Prakhov, S. ; Price, J. ; Ramirez, A.F. ; Sadler, M.E. ; Shafi, A. ; Spinka, H. ; Stanislaus, T.D.S. ; Starostin, A.B. ; Staudenmaier, H.M. ; Starkovsky, I.I. ; Supek, Ivan ; Tippens, W.B.

engleski

Properties of the Lambda[1670] 1/2- Resonance

Recently the Crystal Ball Collaboration measured precise new data for the near-threshold reaction K–p-->etaLambda, which is dominated by formation of the Lambda(1670)1/2–. In this Letter, we present results of a unitary, multichannel analysis that incorporates the new Crystal Ball data. For our preferred fit, we obtain mass M = 1673ą2 MeV, width Gamma = 23ą6 MeV, and elasticity x = 0.37ą0.07. This elasticity is significantly larger than previously recognized. Resonance parameters of our preferred fit are in striking agreement with the quark-model predictions of Koniuk and Isgur.

Lambda baryons; baryon resonances; baryon mass; kaon-proton interactions; quark models

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Podaci o izdanju

88

2002.

012002-x

objavljeno

0031-9007

Povezanost rada

Fizika

Indeksiranost