PI- P --> P PI-
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USE OF PI P ---> PI PI N REACTIONS TO STUDY PI PI SCATTERING IN THE ELASTIC INTERACTION REGION

Alekseeva, E.a. ; Kartamyshev, A.a. ; Makarin, V.k. ; et al.
Sov.Phys.JETP 55 (1982) 591-600, 1982.
Inspire Record 185170 DOI 10.17182/hepdata.2406

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10 data tables
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Destructive interference of s and p waves in 180-degrees pi- p elastic scattering.

Janousch, M. ; Badertscher, A. ; Goudsmit, P.F.A. ; et al.
Phys.Lett.B 414 (1997) 237-241, 1997.
Inspire Record 444911 DOI 10.17182/hepdata.43090

The differential cross section for π − p elastic scattering shows a pronounced dip at 180° and incident pion laboratory energies around 57 MeV. This is due to the cancellation of the real parts of the s - and p -wave hadronic scattering amplitudes. The first observation of this dip is reported and the potential of exploiting the destructive interference phenomenon is discussed.

1 data table
Table 1

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