Search for narrow isovector dibaryons close to low masses threshold

Tatischeff, B.; Comets, M.P.; Courtat, P.; Le Bornec, Y.; Loireleux, E.; Reide, F.; Willis, N.; Bergdolt, A.M.; Bergdolt, G.; Bing, O.

doi:10.1051/jphyscol:1990631

Search for narrow isovector dibaryons close to low masses threshold

Nov 1, 1990

4 pages

Part of Proceedings, 7th International Conference on Polarization Phenomena in Nuclear Physics : Paris, France, July 9-13, 1990, 371-374

Published in:

J.Phys.Colloq. 51 (1990) C6, 371-374

Contribution to:

7th International Conference on Polarization Phenomena in Nuclear Physics: PARIS 90, 371-374

Published: Nov 1, 1990

DOI:

10.1051/jphyscol:1990631

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Abstract: (EDP Sciences)

Abstract For masses larger than 2 MN + Mπ, narrow peaks in two proton invariant (missing) masses spectra : Mpp (Mx) are now well established. The existence of such narrow peaks is not so unquestionable below 2 MN + Mπ. Tensor analyzing power T20 of the invariant mass Mpp has been studied using the p ([MATH], pp) reaction. Depending on the assumption done for background substraction -a hole or an oscillation may appear at Mpp = 1941 MeV. Additional data are under analysis and will improve the statistics.

talk: Paris 1990/07/09
p deuteron: inclusive reaction
deuteron: polarized beam
baryon resonance: dibaryon
search for: dibaryon
mass spectrum: (2p)
analyzing power: tensor
analyzing power: vector
mass enhancement: (1941)
experimental results

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