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, 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
TL;DR
This study measured the pp -> K^+ + (Lambda p) reaction at 1.953 GeV to search for narrow S=-1 resonances, but none were observed, setting upper limits on their production cross sections.
Contribution
It provides the first high-resolution measurement of the reaction to search for narrow resonances and establishes upper limits where none were previously known.
Findings
No narrow S=-1 resonances observed in the missing mass spectrum.
Upper limits set on the production cross section between 2058 and 2105 MeV/c^2.
Small structures from previous experiments are not confirmed.
Abstract
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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