Badewitz, R.C.
[5.0, 10.0]
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Observation of an A3 Amplitude Phase Change

Thompson, G. ; Badewitz, R.C. ; Gaidos, J.A. ; et al.
Phys.Rev.Lett. 32 (1974) 331, 1974.
Inspire Record 772 DOI 10.17182/hepdata.21334

A spin and parity decomposition is presented of the (π+π+π−) final state formed opposite a proton by incident 13-GeV/c π+ mesons. The A3 enhancement is identified as the 2− amplitude decaying to f0π+ via an S wave. A change in relative phase is noted between the 2−S amplitude and the other principal contributions; this is not incompatible with analyses of the (3π)− system. The method employs the University of Illinois three-body partialwave analysis program.

1 data table
Table 1

A3+ DEFINED AS JP=2- S-WAVE.


THE REACTION pi+ n ---> p omega AT 13-GeV/c

Paler, K. ; Tebes, J. ; Badewitz, R.C. ; et al.
Lett.Nuovo Cim. 4 (1972) 745, 1972.
Inspire Record 74599 DOI 10.17182/hepdata.37350

None

3 data tables
Table 1

SIMPLE BREIT-WIGNER FIT WITH ESTIMATED BACKGROUND OF 26 +- 8 PCT.

Table 2

MEASURED OFF GRAPH. BACKGROUND NOT SUBTRACTED. NOT CORRECTED FOR SMALL -T PAULI EXCLUSION EFFECTS (NEGLIGIBLE COMPARED WITH STATISTICAL ERRORS).

Table 3

No description provided.