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Open Access item Searching for signatures around 1920 MeV of a N-* state of three hadron nature

Authors:Martínez Torres, Alberto
Oset, Eulogi
Khemchandani, Kanchan P.
Meißner, Ulf-G.
Issue Date:15-Sep-2009
Citation:European Physical Journal A - Hadrons and Nuclei 41 (3): 361-368 (2009)
Abstract:We provide a series of arguments which support the idea that the peak seen in the gamma p -> K+ Lambda reaction around 1920 MeV should correspond to the recently predicted state of J(P) = 1/2(+) as a bound state of K(K) over bar N with a mixture of alpha(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 gamma p -> K(+)K(-)p at energies close to threshold and of d sigma/dM(inv) for invariant masses close to the two-kaon threshold.
Publisher version (URL):http://dx.doi.org/10.1140/epja/i2009-10834-2
Appears in Collections:(IFIC) Artículos

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