Search for supernarrow dibaryons via the pd → ppX and pd → pdX reactions

Supernarrow dibaryons (SNDs) have been searched for by the pd{yields}ppX and pd{yields}pdX reactions at E{sub p}=295 MeV over a mass range of 1898 to 1953 MeV, where three candidates of SNDs were found at the Moscow Meson Factory. The experiment was carried out at the Research Center for Nuclear Phy...

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Bibliographic Details
Published in:Physical review. C, Nuclear physics Nuclear physics, 2006-09, Vol.74 (3), Article 035203
Main Authors: Kuboki, H., Tamii, A., Fujita, K., Hatanaka, K., Hatano, M., Kamiya, J., Kudoh, T., Maeda, Y., Sagara, K., Saito, T., Sakai, H., Sakemi, Y., Sasano, M., Sekiguchi, K., Shimizu, Y., Shimomoto, S., Shiota, M., Tameshige, Y., Uesaka, T., Wakasa, T., Yako, K.
Format: Article
Language:English
Subjects:
CROSS SECTIONS
DEUTERIUM TARGET
DIBARYONS
MAGNETIC SPECTROMETERS
MASS RESOLUTION
MESON FACTORIES
MEV RANGE
MISSING-MASS SPECTRA
NUCLEAR PHYSICS AND RADIATION PHYSICS
PARTICLE IDENTIFICATION
PARTICLE WIDTHS
PROTON REACTIONS
RESONANCE
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Summary:Supernarrow dibaryons (SNDs) have been searched for by the pd{yields}ppX and pd{yields}pdX reactions at E{sub p}=295 MeV over a mass range of 1898 to 1953 MeV, where three candidates of SNDs were found at the Moscow Meson Factory. The experiment was carried out at the Research Center for Nuclear Physics using a two-arm magnetic spectrometer system and a liquid deuterium target. A good mass resolution of 1 MeV and a low background condition were achieved. No resonance structure was observed in the missing mass spectra. Upper limits of the SND production cross section were determined.
ISSN:0556-2813
1089-490X
DOI:10.1103/PhysRevC.74.035203