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26 April 2024 |
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Article overview
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Investigation of light scalar resonances at COSY | | M.Buescher
; F.P.Sassen
; N.N.Achasov
; L.Kondratyuk
; | | Date: |
17 Dec 2002 | | Subject: | hep-ph nucl-ex nucl-th | | Abstract: | The $a_0$(980) and $f_0$(980) resonances are two well established states in the excited meson spectrum. We review the most prominent theoretical models which try to explain the structure of these states. It is discussed whether data from COSY on $a_0$ and $f_0$ production in $pp$, $pn$, $pd$ and $dd$ collisions allow to distinguish between the different approaches. Very promising in this respect seems to be the measurement of the reaction $dd o (mathrm{^4He} a_0^0 o) mathrm{^4He} pi^0eta$ which violates isospin conservation and can be related to $a_0$-$f_0$ mixing. | | Source: | arXiv, hep-ph/0301126 | | Services: | Forum | Review | PDF | Favorites | |
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