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

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arxiv 1105.2281 v2 pith:3BIWHCZ2 submitted 2011-05-11 hep-ex nucl-ex

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

classification hep-ex nucl-ex
keywords lambdamissingnarrowlimitsmassreactionresonanceupper
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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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