Comment on 'Photoproduction of $η$--Mesic ${^3}$He'

Details Comment on 'Photoproduction of $η$--Mesic ${^3}$He' Comment on 'Photoproduction of $η$--Mesic ${^3}$He'

2004-08-18

arxiv.org/abs/hep-ph/0408204v1

Phys.Rev.Lett.94:049101,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

Extended version of a comment sent to Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.94.049101

In a recent paper by the TAPS collaboration \cite{exp} a first measurement of a bound system of an $\eta$ meson and a ${^3}$He nucleus was reported. In this comment we critically reexamine the interpretation of the data and show that the data prefers a solution where there is no bound state present. Given the low statistics of the measurement, however, it does not exclude the existence of a bound state.

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