PBAR P --> PI0 F1(1285)
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Properties of the $\bar{p} p$ Annihilations Into Strange Particles at 702-{MeV}/$c$ and 757-{MeV}/$c$

The India-CERN-College de France-Madrid-Pisa collaboration Ganguli, S.N. ; Gurtu, A. ; Malhotra, P.K. ; et al.
Nucl.Phys.B 183 (1981) 295-329, 1981.
Inspire Record 154814 DOI 10.17182/hepdata.49299

p p annihilations, leading to the production of at least one neutral K meson in the final state, have been studied in the incident momentum region of 700–760 MeV/ c . Topological cross sections and cross sections for the various exclusive final states are presented. Detailed analyses of the different final states have been carried out to study the importance of resonance production and of quasi two-body and quasi three-body processes. A detailed study of the K K π system in the four-body final states shows that the F 1 meson is a spurious effect due to systematic biases. In the momentum range investigated, the C = +1 final states are strongly suppressed.

3 data tables
Table 1

SUMMARY OF QUASI-TWO-BODY CROSS SECTIONS.

Table 2

No description provided.

Table 3

No description provided.


Strange Particle Production in anti-p p Annihilation from 1.22-GeV/c to 1.35-GeV/c

Handler, T. ; Plano, R.J. ; Brucker, E.B. ; et al.
Nucl.Phys.B 110 (1976) 173-188, 1976.
Inspire Record 100479 DOI 10.17182/hepdata.35744

Experimental results on antiproton-proton annihilations at 5 incident momenta in the range 1.22–1.35 GeV/ c into final states with at least one visible K 1 0 meson are presented. Based on a total of 5855 events, cross sections and resonance fractions for all experimentally accessible final states are determined. The total cross section for annihilation into strange particles with at least one visible K 1 0 is 2069 ± 45 ub. Copious resonance production is observed but there is no significant evidence for the formation of a resonance in the s -channel.

7 data tables
Table 1

No description provided.

Table 2

RESONANCE FRACTIONS AND CROSS SECTIONS FOR AP P --> KS (K+ PI- + K- PI+).

Table 3

RESONANCE FRACTIONS AND CROSS SECTIONS FOR AP P --> KS (K+ PI- + K- PI+) PI0.

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Study of the D (1285) and E(1420) Resonances Produced in anti-p p Annihilations at 700-MeV/c to 760-MeV/c

Nacasch, R. ; Defoix, C. ; Dobrzynski, L. ; et al.
Nucl.Phys.B 135 (1978) 203-223, 1978.
Inspire Record 122850 DOI 10.17182/hepdata.41975

In this paper we have investigated the properties of the D(1285) and E(1420) meson resonances using the five-body annihilation channels p p → K K πππ obtained in a large statistics experiment (28 events/μb). The analysis favours the 1 + spin-parity assignment for the D(1285) meson. The dominant decay mode of the D(1285) into K K π is found to be δ(970)π. The situation concerning the E(1420) meson remains confused although not inconsistent with previous analyses. Partial cross sections on resonance production are also presented.

1 data table
Table 1

No description provided.