Upper limits for a narrow resonance in the reaction p + p -> K^+ + (Lambda p)

arxiv: 1105.2281 · v2 · pith:3BIWHCZ2new · submitted 2011-05-11 · ✦ hep-ex · nucl-ex

Upper limits for a narrow resonance in the reaction p + p -> K^+ + (Lambda p)

A. Budzanowski , A. Chatterjee , H. Clement , P. Hawranek , F. Hinterberger , R. Jahn , R. Joosten , K. Kilian

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

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classification ✦ hep-ex nucl-ex

keywords lambdamissingnarrowlimitsmassreactionresonanceupper

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The reaction pp -> K^+ + (Lambda p) has been measured at T_p = 1.953 GeV and \Theta = 0 deg with a high missing mass resolution in order to study the Lambda p final state interaction. Narrow S = -1 resonances predicted by bag model calculations are not visible in the missing mass spectrum. Small structures observed in a previous experiment are not confirmed. Upper limits for the production cross section of a narrow resonance are deduced for missing masses between 2058 and 2105 MeV/c^2.

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Upper limits for a narrow resonance in the reaction p + p -> K^+ + (Lambda p)

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