A search for narrow states in antineutron-proton total and annihilation cross sections near N̄N threshold (CROSBI ID 261750)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Armstrong, T.A. ; Chu, C. ; Clement, J. ; Elinon, C. ; Furić, Miroslav ; Hartman, K. ; Hicks, A. ; Hungerford, E. ; Kashimoto, T. ; Kruk, J. ; Lewis, R. ; Lowenstein, D. ; Lochstet, W. ; Mayes, B. ; Moss, B. ; Mutchler, G. ; Pinsky, L. ; Smith, G.A. ; Tang, L. ; Von Witsch, W. ; Xue, Y.
engleski
A search for narrow states in antineutron-proton total and annihilation cross sections near N̄N threshold
The n̄p total and annihilation cross section have been measured from near N̄N threshold (1880 MeV) to 1940 MeV with RMS resolution ranging from 0.08 MeV (1880 MeV) to 6.7 MeV (1940 MeV). No significant narrow meson structures were seen, with 90% CL upper limits of 40–180 mb-MeV on σΓ for states with width less than our resolution. Combined with increasing unitarity bounds on σ as one approaches threshold, these limits confine widths of possible predicted states below 1900 MeV to less than ∼ 1 MeV.
antineutron-proton ; narrow states ; search
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Podaci o izdanju
175 (3)
1986.
383-386
objavljeno
0370-2693
1873-2445
10.1016/0370-2693(86)90874-9
