Searching for signatures around 1920 MeV of a N state of three hadron nature

We provide a series of arguments which support the idea that the peak seen in the p K + reaction around 1920MeV should correspond to the recently predicted state of J P = 1/2 + as a bound state of K N with a mixture of a 0 (980) N and f 0 (980) N components. At the same time we propose polarization...

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Bibliographic Details
Published in:The European physical journal. A, Hadrons and nuclei Hadrons and nuclei, 2009-09, Vol.41 (3), p.361-368
Main Authors: Martínez Torres, A., Khemchandani, K. P., Meißner, U. -G., Oset, E.
Format: Article
Language:English
Subjects:
Exact sciences and technology
Hadrons
Heavy Ions
Nuclear Fusion
Nuclear Physics
Particle and Nuclear Physics
Physics
Physics and Astronomy
Regular Article - Theoretical Physics
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Summary:We provide a series of arguments which support the idea that the peak seen in the p K + reaction around 1920MeV should correspond to the recently predicted state of J P = 1/2 + as a bound state of K N with a mixture of a 0 (980) N and f 0 (980) N components. At the same time we propose polarization experiments in that reaction as a further test of the prediction, as well as a study of the total cross-section for p K + K - p at energies close to threshold and of d σ /d M inv for invariant masses close to the two-kaon threshold.
ISSN:1434-6001
1434-601X
DOI:10.1140/epja/i2009-10834-2