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Inclusive upsilon and pi0 production in pbar p interactions at 32 GeV/c

Poiret, C. ; Scory, M. ; Windmolders, R. ; et al.

Z.Phys.C 7 (1981) 283-287, 1981.

Inspire Record 1385259 DOI 10.17182/hepdata.1

The inclusive π0 and γ production is studied in a$\bar PP$ experiment at 32.1 GeV/c performed in the Mirabelle bubble chamber with a sensitivity of ∼2.7 events/μb. Total and topological π0 cross sections are presented. The π0 and γ longitudinal and transverse momentum distributions are obtained and compared with$\bar PP$ data at 22.4 GeV/c andK ± P data at 32.1 GeV/c. The inclusive π0 distributions are also compared to those obtained for charged pions in the same experiment.

5 data tables

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INCLUSIVE gamma PRODUCTION IN anti-p p INTERACTIONS AT 12-GeV/c

Chakrabarti, S. ; Banerjee, S. ; Ganguli, S.N. ; et al.

Z.Phys.C 27 (1985) 1, 1985.

Inspire Record 202797 DOI 10.17182/hepdata.16116

The inclusive production of photons in$\bar pp$ interactions has been studied at incident momentum of 12 GeV/c. Topological cross section has been presented and KNO distribution for$\bar pp$ interactions has been studied. Inclusive cross section for γ production has been measured to be 149.5±8.8 mb. Bulk of these photons come from π0 decays whose cross section has been evaluated independently to be 60.4±7.9 mb. Signals of η and ω have been seen in γγ and π+π-π0 decay modes and their inclusive cross sections have been estimated to be 14.9±8.8 mb and 14.6±7.0 mb respectively. Results on average multiplicities of γ and two particle correlation parameters are presented. Neutral pions seem to be more strongly correlated than the charged pions. The inclusive distributions of the Feynmanx andpT/2 of the photons are compared with expectation from charged pions on the basis of charge independence. Energy dependence of the normalised invariant distributions has been studied. The distribution of the scaling variablez of photons ine+e− and$\bar pp$ interactions has been compared.

8 data tables

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INCLUSIVE PRODUCTION OF gamma QUANTA AND pi0 MESONS IN anti-p p INTERACTIONS AT 32-GeV/c

Bogolyubsky, M.Yu. ; Bumazhnov, V.A. ; Kiryunin, A.E. ; et al.

Sov.J.Nucl.Phys. 49 (1989) 454, 1989.

Inspire Record 265088 DOI 10.17182/hepdata.40731

None

9 data tables

Table 1

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Table 2

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CROSS-SECTIONS, AVERAGE MULTIPLICITIES AND ENERGY FRACTIONS OF NEUTRAL pi- AND K MESONS IN anti-p p ANNIHILATIONS AT 22.4-GeV/c

Batyunya, B.V. ; Boguslavsky, I.V. ; Gramenitsky, I.M. ; et al.

JINR-E1-82-475, 1982.

Inspire Record 179204 DOI 10.17182/hepdata.17656

None

7 data tables

Table 1

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GENERAL FEATURES OF ANTI-P P INTERACTIONS AT 7.3-GEV/C

Patel, G.D. ; Johnson, P. ; Mason, P. ; et al.

Z.Phys.C 12 (1982) 189-202, 1982.

Inspire Record 179888 DOI 10.17182/hepdata.2239

Absolute inclusive cross sections for$\bar pp$ interactions at 7.3 GeV/c are given. The data cover prong cross sections,V0, γ production and inclusive charged particle (p/π) production. Separation has been made into annihilation and non-annihilation components. Inclusive π+, π− production in the processes of$\bar pp$ annihilation and non-annihilation are compared with simple quark models.

26 data tables

Table 1

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ANNIHILATION AND NON-ANNIHILATION TOPOLOGICAL CROSS SECTIONS.