Search for supernarrow dibaryons via the pd{yields}ppX and pd{yields}pdX reactions

Journal Article · Fri Sep 15 00:00:00 EDT 2006 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.74.035203· OSTI ID:20863824

Kuboki, H; Hatano, M; Saito, T; Sakai, H; Sasano, M; Yako, K ^[1]; Tamii, A; Fujita, K; Hatanaka, K; Sakemi, Y; Shimizu, Y; Tameshige, Y ^[2]; Kamiya, J ^[3]; Kudoh, T; Sagara, K; Shimomoto, S; Shiota, M; Wakasa, T ^[4]; Maeda, Y; Uesaka, T ^[5]

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1. Department of Physics, The University of Tokyo, Bunkyo, Tokyo 113-0033 (Japan)
2. Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047 (Japan)
3. Accelerator Group, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195 (Japan)
4. Department of Physics, Kyushu University, Higashi, Fukuoka 812-8581 (Japan)
5. Center for Nuclear Study, The University of Tokyo, Bunkyo, Tokyo 113-0033 (Japan)

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.

• OSTI ID: 20863824
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 74, Issue 3; Other Information: DOI: 10.1103/PhysRevC.74.035203; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CROSS SECTIONS
DEUTERIUM TARGET
DIBARYONS
MAGNETIC SPECTROMETERS
MASS RESOLUTION
MESON FACTORIES
MEV RANGE
MISSING-MASS SPECTRA
PARTICLE IDENTIFICATION
PARTICLE WIDTHS
PROTON REACTIONS
RESONANCE