A search for narrow states in antineutron-proton total and annihilation cross sections near N̄N threshold

T. Armstrong, C. Chu, J. Clement, C. Elinon, M. Furic, K. Hartman, A. Hicks, E. Hungerford, T. Kishimoto, J. Kruk, R. Lewis, D. Lowenstein, W. Lochstet, B. Mayes, B. Moss, G. Mutchler, L. Pinsky, G. A. Smith, L. Tang, W. von WitschY. Xue

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6 引文 斯高帕斯(Scopus)

摘要

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.

原文English
頁(從 - 到)383-386
頁數4
期刊Physics Letters B
175
發行號3
DOIs
出版狀態Published - 1986 8月 7

All Science Journal Classification (ASJC) codes

  • 核能與高能物理

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