Upper limits for a narrow dibaryon in p p collisions at 200-MeV and 310-MeV
1998
6 pages
Published in:
- Phys.Lett.B 427 (1998) 248-253
Citations per year
Abstract: (Elsevier)
Dibaryons, forbidden by mass to decay into NN π channel and by quantum numbers into NN channel, may still have escaped detection. In fact, recently an observation of a narrow dibaryon (D) with the mass close to 1920 MeV was reported in the process pp → γγ + X . This dibaryon should also appear in the proton-proton bremsstrahlung data from measurements at 200 and 310 MeV, which have been carried out at the CELSIUS storage ring in Uppsala. From these data upper limits of 10 and 3 nb are obtained for the dibaryon production cross section (at 95% confidence level) for the two energies, respectively.- 14.20.Pt
- 13.75.Cs
- Proton-proton bremsstrahlung
- Dibaryons
- Total cross section
- p p: inelastic scattering
- p p: bremsstrahlung
- baryon resonance: search for
- baryon resonance: dibaryon
- mass spectrum: (2p photon)
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