On the possibility of observation of $a_0$-$f_0$ mixing in the $pn\to d{a}_0$ reaction

Abstract

It is shown that, if isospin is not conserved in $a_0^0$- and $f_0$-meson mixing, forward-backward asymmetry arises in the reaction $pn\to d{a}_0^0$. This effect increases near the reaction threshold. The asymmetry is estimated within the framework of a model in which the $a_0^0$-$f_0$ mixing is due to the virtual ${\pi }^0\leftrightarrow \eta$ transition and the difference in masses of the charged and neutral kaons in decay channels. The angular asymmetry near the threshold of the $pn\to d{a}_0^0$ reaction was found to be large, of the order of $8÷15$ %.

8 pages, LaTeX, 4 PostScript figures

References in corpus (1)

• Mixing of the $f_0$ and $a_0$ scalar mesons in threshold photoproduction

Cited by in corpus (22)

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• Investigation of a0-f0 mixing
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• a0(980)-f0(980) mixing and isospin violation in the reactions pN -> d a0, pd -> 3He/3H a0 and dd -> 4He a0
• Proposed Search for $a_0^0(980)-f_0(980)$ Mixing in Polarization Phenomena
• Observation of $a_0^0(980)$-$f_0(980)$ Mixing
• Aspects of a0-f0 mixing in the reaction pn->da0
• Isospin violation in J/Psi to phi pi0 eta decay and the f0-a0 mixing
• Search for the $a_0(980)-f_0(980)$ mixing in weak decays of $D_s/B_s$ mesons
• Abnormal isospin violation and $a_0-f_0$ mixing in the $D_s^{+}\to {\pi }^{+}{\pi }^0{a}_0(980)(f_0(980))$ reactions
• Manifestation of the $a_0^0(980)-f_0(980)$ mixing in the reaction ${\pi }^{-}p\to \eta {\pi }^{0}n$ on a polarized target
• Near-threshold production of a0(980) mesons in the reaction pp -> d K^+ \bar{K}^0
• The $D_s^{+}\to a_0(980)e^{+}{\nu }_e$ reaction and the $a_0(980)-f_0(980)$ mixing
• $a_0(980)-f_0(980)$ mixing in ${\chi }_{c1}\to {\pi }^0{f}_0(980)\to {\pi }^0{\pi }^{+}{\pi }^{-}$ and ${\chi }_{c1}\to {\pi }^0{a}_0(980)\to {\pi }^0{\pi }^0\eta$
• Determination of $f_0-a_0^0$ mixing angle from QCD sum rules
• Photoproduction and mixing effects of scalar a0 and f0 mesons
• Study of the isospin breaking decay $\mathbf{Y}(2175)\to \mathbf{\varphi }{\mathbf{f}}_0(980)\to \mathbf{\varphi \eta }{\mathbf{\pi }}^0$ at BESIII
• Study of $a_0^0(980)$-$f_0(980)$ mixing from $a_0(1450)\to a_0^0(980)f_0(500)\to {\pi }^{+}{\pi }^{-}{f}_0(500)$
• Strangeness Production in pp and pn Reactions at COSY
• Scalar meson production in nucleon-nucleon collisions near threshold