PI- P ELASTIC SCATTERING IN THE REGION OF THE X0 (957.6) THRESHOLD

Moissidis, P.G. ; Sarma, H.N.K. ; Carr, J. ; et al.
Nuovo Cim.A 75 (1983) 123-162, 1983.
Inspire Record 196214 DOI 10.17182/hepdata.8694

We present results from a high-momentum-resolution measurement of the π-p elastic differential and total cross-sections-at values of cos θ* between — 0.60 and 0.85 in the centre-of-mass system and at incident-beam momenta between 1.34GeV/c and 1.49 GeV/c—close to the X0 production threshold. There is no significant enhancement near the X0 production threshold. However, a small effect of ~ 3 standard deviations is present, having mass 1898.8 MeV and width ~5MeV, and appearing at an incident-pion momentum of 1435 MeV/c. In addition, a narrow ~ 5-standard-deviation effect atEc.m.= 1876 MeV appeared at an incident-pion momentum of 1389 MeV/c.

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