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SEARCH FOR STRUCTURE IN THE LOW-ENERGY ANTI-p p p ANNIHILATION CROSS-SECTION

Jastrzembski, E. ; Haik, N. ; McFarlane, W.K. ; et al.
Phys.Rev.D 23 (1981) 2784, 1981.
Inspire Record 159386 DOI 10.17182/hepdata.24081

Relative cross sections have been measured for p¯p annihilation by a new technique in the invariant-mass range 1920-1960 MeV. The 90%-confidence upper limit on simple Breit-Wigner enhancements in the S region (between 1930 and 1942 MeV) of width 4 MeV or narrower is 12 mb MeV, assuming a simple dependence with momentum of the nonresonant cross section.

1 data table
Table 1

No description provided.


Cross-Sections of Annihilation and Inelastic Final States for anti-p p Interactions at 9.1-GeV/c

The LIVERPOOL-STOCKHOLM collaboration Gregory, P.S. ; Johnson, P. ; Mason, P. ; et al.
Nucl.Phys.B 119 (1977) 60-76, 1977.
Inspire Record 123859 DOI 10.17182/hepdata.8340

Topological and channel cross sections are given for annihilation and inelastic final states produced in p p interactions at 9.1 GeV/c. Cross sections for prominent resonances in specific channels and charged pion, ϱ 0 and Δ ++ inclusive cross sections are also presented.

6 data tables
Table 1

No description provided.

Table 2

FITTED FORWARD D(SIG)/DT = 153 +- 8 MB/GEV**2.

Table 3

CHANNEL CROSS SECTIONS FOR 2, 4, 6, AND 8 PRONG REACTIONS.

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Measurement of the Total and Partial anti-p p Cross-Section Between 1901-MeV and 1950-MeV

The CERN-Liverpool-Mons-Padua-Rome-Trieste collaboration Chaloupka, V. ; Drevermann, H. ; Marzano, F. ; et al.
Phys.Lett.B 61 (1976) 487-492, 1976.
Inspire Record 108895 DOI 10.17182/hepdata.27669

The presence of a structure in the p̄p total cross section at 1930–1940 MeV, with a narrow width of 9 MeV is confirmed. The interpretation of the effect as a single, non interfering, resonance is made difficult by the comparison of the elastic scattering with the charge exchange cross sections.

1 data table
Table 1

'INELASTIC' IS 0+2+4+6 PRONGS MINUS ELASTIC.