Mann, W.A.
DSIG/DU
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BACKWARD ELASTIC SCATTERING AND RHO- PRODUCTION IN PI- P COLLISIONS AT 10-GEV/C

The BARI-BONN-CERN-GLASGOW-LIVERPOOL-MILAN-VIENNA collaboration Ghidini, B. ; Lenti, V. ; Palano, A. ; et al.
Nucl.Phys.B 195 (1982) 12-28, 1982.
Inspire Record 177922 DOI 10.17182/hepdata.26084

The reactions π − p → p π − and π − p → p ϱ − ( ϱ − → π − π 0 ) at 10 GeV/ c with the proton in the forward direction in the c.m.s. are discussed on the basis of 953 elastic scattering events and 2240 events of the reaction π − p → p π − π 0 . The total backward cross sections are 0.52±0.10 and 1.52±0.28 μ b, respectively. In both cases the production mechanism is compatible with the dominance of the baryonic Δ δ Regge trajectory exchange. The ϱ − decay angular distributions are studied in the u -channel helicity frame and the spin density matrix elements are presented as functions of u .

5 data tables
Table 1

No description provided.

Table 2

DATA FROM PRIV COMM WITH B. GHIDINI.

Table 3

DATA FROM PRIV COMM WITH B. GHIDINI.

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Measurement of the Backward Peaks in the Reactions pi- p --> K0 Lambda and pi- p --> K*0 (890) Lambda

Foley, K.J. ; Love, W.A. ; Ozaki, S. ; et al.
Phys.Rev.D 10 (1974) 2763, 1974.
Inspire Record 1420 DOI 10.17182/hepdata.24944

We present the differential cross sections near u=0 for the reactions π−p→K0Λ and π−p→K*0(890)Λ at incident pion momenta of 8 and 10.7 GeV/c. The differential cross section for the first reaction follows the exponential dependence on u previously observed, while the second shows a dip in the backward direction.

3 data tables
Table 1

Axis error includes +- 25/25 contribution.

Table 2

Axis error includes +- 25/25 contribution.

Table 3

Axis error includes +- 25/25 contribution.