DESTRUCTIVE INTERFERENCE OF S-WAVE AND P-WAVE IN 180-DEGREES PI(-)P ELASTIC-SCATTERING

Authors
JANOUSCH M BADERTSCHER A GOUDSMIT PFA LEISI HJ MATSINOS E WEBER P ZHAO ZG
Citation
M. Janousch et al., DESTRUCTIVE INTERFERENCE OF S-WAVE AND P-WAVE IN 180-DEGREES PI(-)P ELASTIC-SCATTERING, Physics letters. Section B, 414(3-4), 1997, pp. 237-241
Citations number
18
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
414
Issue
3-4
Year of publication
1997
Pages
237 - 241
Database
ISI
SICI code
0370-2693(1997)414:3-4<237:DIOSAP>2.0.ZU;2-#
Abstract
The differential cross section for pi(-)p elastic scattering shows a p ronounced dip at 180 degrees and incident pion laboratory energies aro und 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 i nterference phenomenon is discussed. (C) 1997 Elsevier Science B.V.