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

arxiv: 1003.0290 · v1 · pith:BWQYSAGSnew · submitted 2010-03-01 · ⚛️ nucl-ex

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

A. Budzanowski , A.Chatterjee , H. Clement , E. Dorochkevitch , P. Hawranek , F. Hinterberger , R. Jahn , R. Joosten

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K. Kilian S. Kliczewski Da. Kirillov Di. Kirillov D. Kolev M. Kravcikova M. Lesiak H. Machner A. Magiera G. Martinska N. Piskunov J. Ritman P. von Rossen B. J. Roy A. Sibirtsev I. Sitnik R. Siudak R. Tsenov K. Ulbrich J. Urban G. J. Wagner

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keywords lambdafinalstatehighinteractionmassreactionresolution

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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.

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

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