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The
ho
ho interaction in the hidden gauge formalism and the f_0(1370) and f_2(1270) resonances | | R. Molina
; D. Nicmorus
; E. Oset
; | | Date: |
12 Sep 2008 | | Abstract: | We have studied the interaction of vectors mesons within the hidden gauge
formalism and applied it to the particular case of the $
ho
ho$ interaction.
We find a strong attraction in the isospin, spin channels I,S=0,0 and 0,2,
which is enough to bind the $
ho
ho$ system. We also find that the
attraction in the I,S=0,2 channel is much stronger than in the 0,0 case. The
states develop a width when the $
ho$ mass distribution is considered, and
particularly when the $pi pi$ decay channel is turned on. Using a
regularization scheme with cut offs of natural size, we obtain results in fair
agreement with the mass and the width of the $f_0(1370)$ and $f_2(1270)$ meson
states, providing a natural explanation of why the tensor state is more bound
than the scalar and offering a new picture for these states, which would be
dynamically generated from the $
ho
ho$ interaction or, in simpler words,
$
ho
ho$ molecular states. | | Source: | arXiv, 0809.2233 | | Services: | Forum | Review | PDF | Favorites | |
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