Graessler, H.
PI+ P --> PI+ PI+ P PI-
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Resonance production by 8 GeV/c positive pions on protons

The Aachen-Berlin-CERN collaboration Deutschmann, M. ; Schulte, R. ; Weber, H. ; et al.
Phys.Lett. 12 (1964) 356-360, 1964.
Inspire Record 1389790 DOI 10.17182/hepdata.30824

None

1 data table
Table 1

Cross sections based on total PI+ P cross section =25.8 mb (Vondardel, PRL 8, 173 (1962)).


Interference between (p,f0 ...) and (rho0,b0,...) exchanges in pion diffraction dissociation at 16 gev/c

The Aachen-Berlin-Bonn-CERN-Heidelberg collaboration Beaupre, J.V. ; Deutschmann, M. ; Graessler, H. ; et al.
Phys.Lett.B 41 (1972) 393-396, 1972.
Inspire Record 75614 DOI 10.17182/hepdata.28235

It is found in the reactions π ± p →( π ± π + π − )p, believed to be dominated by diffraction dissociation, that the d σ d t′ distributions show a “cross-over” effect at t ′ ≈ 0.15, similar to the effect observed in elastic scattering. This gives evidence for the interference of ( ϱ 0 , B 0 ,…)-exchanges with ( P , f 0 , …) -exchanges in pion diffraction dissociation reactions. No such evidence is found for baryon dissociation, π ± p → π ± (p π + π − ), at the same energy.

8 data tables
Table 1

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Table 2

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Table 3

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