High resolution study of the Lambda p final state interaction in the reaction p + p -> K+ + (Lambda p)

Authors :: Budzanowski, A.
Chatterjee, A.
Clement, H.
Dorochkevitch, E.
Hawranek, P.
Hinterberger, F.
Jahn, R.
Joosten, R.
Kilian, K.
Kliczewski, S.
Kirillov, Da.
Kirillov, Di.
Kolev, D.
Kravcikova, M.
Lesiak, M.
Machner, H.
Magiera, A.
Martinska, G.
Piskunov, N.
Ritman, J.
von Rossen, P.
Roy, B. J.
Sibirtsev, A.
Sitnik, I.
Siudak, R.
Tsenov, R.
Ulbrich, K.
Urban, J.
Wagner, G. J.
Publication Year :: 2010
Abstract: The reaction pp -> K+ + (Lambda p) was measured at Tp=1.953 GeV and Theta = 0 deg with a high missing mass resolution in order to study the Lambda p final state interaction. The large final state enhancement near the Lambda p threshold can be described using the standard Jost-function approach. The singlet and triplet scattering lengths and effective ranges are deduced by fitting simultaneously the Lambda p invariant mass spectrum and the total cross section data of the free Lambda p scattering.<br />Comment: submitted to Physics Letters B, 10 pages, 3 figures

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