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.
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A study of the inclusive production of π − , η , ϱ 0 , ω ad f mesons in p p annihilation at 0.7 GeV/ c is presented. Topological and channel cross sections are determined. Longitudinal and transversal momentum distributions of non-strange mesons are studied. It is deduced that nearly 48% of all negative pions arise from the decay of η , ϱ 0 , ω and f mesons.
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Inclusive production of Σ + , Σ − and Σ 0 hyperons in K − p interactions at 14.3 GeV/ c has been studied and compared to Λ production. Cross sections are presented as a function of longitudinal and transverse momenta and compared to the pp → Σ + + anything data.
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