ω(→ π+π−π0) meson photoproduction on proton

被引：0
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作者：
Swapan Das
机构：
[1] Bhabha Atomic Research Centre,Nuclear Physics Division
来源：
Pramana | 2010年 / 75卷
关键词：
-meson production; reaction; invariant mass distribution;
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摘要：
The cross-section for the π+π−π0 invariant mass distribution in the γp reaction in the GeV region is calculated. This reaction is assumed to proceed through the formation of the ω-meson in the intermediate state, because the production cross-section for this meson in the γp reaction in the GeV region is significant and it has a large branching ratio (88.8%) in the π+π−π0 channel. The cross-sections for this reaction are calculated using the energy-dependent reaction amplitude, fγp→ωp(0), extracted from the latest ω-meson photoproduction data. We use established procedure to calculate other factors, like width and propagator of the ω-meson, so that our calculation can provide reliable cross-section. The calculated results reproduce the measured π+π−π0 invariant mass distribution spectra in the γp reaction.
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页码：665 / 674
页数：9
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