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Measurement of $\pi^- p \to \pi^- p \pi^0$ Reaction Near Threshold and Breaking of Chiral Symmetry

The OMICRON collaboration Kernel, G. ; Korbar, D. ; Krizan, P. ; et al.
Phys.Lett.B 225 (1989) 198-202, 1989.
Inspire Record 278272 DOI 10.17182/hepdata.29804

A full-kinematics measurement of the π − p→ π − p π 0 reaction in the incident π − momentum region from 295 to 450 MeV/ c is presented. The measurement was performed with the OMICRON spectrometer at the CERN synchrocyclotron.

1 data table
Table 1

Integrated cross section.


Pi- p interactions at 3.25 gev/c. two-prong events

Guzhavin, V.M. ; Vetlitskii, I.A. ; Kaidalov, A.B. ; et al.
Yad.Fiz. 14 (1971) 354-366, 1971.
Inspire Record 69448 DOI 10.17182/hepdata.19292

None

1 data table
Table 1

BREIT-WIGNER RESONANCE FITS WITH BACKGROUND.


Pi- p elastic scattering at 2.29 gev/c

Hagopian, S. ; Hagopian, V. ; Bogart, E. ; et al.
Phys.Rev.D 5 (1972) 2684-2688, 1972.
Inspire Record 74158 DOI 10.17182/hepdata.3597

The reaction π−+p→π−+p has been studied in the 15-in. bubble chamber at the Princeton-Pennsylvania Accelerator. The elastic scattering cross section was determined to be 8.5 ± 0.2 mb. The forward peak fits to an exponential in t with a slope of 8.1 ± 0.2 (GeV/c)−2. The forward differential cross section dσdΩ(0)=17.9±0.7 mb/sr. A fit of the center-of-mass angular distribution to Legendre polynomials needed terms up to the 12th order, corresponding to the highest nonzero partial wave of L=6.

4 data tables
Table 1

No description provided.

Table 2

FORWARD D(SIG)/DOMEGA IS 17.9 +- 0.7 MB/SR. SLOPE IS 8.1 +- 0.2 GEV**-2 (-T = 0.1 TO 0.4 GEV**2).

Table 3

OTHER 2.27 GEV/C DATA ALSO QUOTED.

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