The antiproton-nuclei annihilation cross-section at the momentum range from 0.70 to 2.50 GeV/c

Using modularized NaI(Tl) detectors, we carried out a high-statistics measurement of inclusive π o and η spectra in antiproton annihilation at rest in a liquid D 2 target. We obtained the following two-meson yields (branching ratios) per \bar p N ( N = p or n ) annihilation: 0.19± 0.09% for π o ω, 1.07±0.19% for π o ρ o , 0.057±0.018% for π o η, 0.0123±0.0055% for π o π o , 0.02±0.02% for π o ρ - , 0.202±0.031% for π o π - , 0.49±0.12% for ηω, 0.45±0.15% for ηρ o , and 0.91±0.22% for ηρ - .

Antiproton

Annihilation

Bar (unit)

Branching fraction

10.1143/jpsj.69.1356

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Citations (1)

About the capture and annihilation of antiprotons

Il Nuovo Cimento (1956)

R. Gatto

Antiproton

Annihilation

10.1007/bf02745431

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Citations (8)

Annihilation of slow antiprotons in flight and in traps

Zeitschrift für Physik A Hadrons and Nuclei (1996)

J. Carbonell K.V. Protasov

Antiproton

Annihilation

Trap (plumbing)

Antihydrogen

10.1007/s002180050082

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Citations (8)

Leading particle effect on antiproton annihilation in neon

Physical Review C (1982)

C. Ishii

Semiclassical transport theory is applied to the pion emission from antiproton annihilation in Ne. In the annihilation of a moving antiproton in nuclei, we find that the leading particle effect is apparent.NUCLEAR REACTIONS Low energy $\overline{p}$-Ne annihilation; pion transport theory; leading particle effect.

Antiproton

Annihilation

Particle (ecology)

10.1103/physrevc.25.1652

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Citations (0)

Range of Proton-Antiproton Annihilation Near 1.0 Bev

Physical Review (1961)

Osamu Hara

The range of the proton-antiproton annihilation was calculated for antiproton with energy near 1 Bev. The point is to get the range of pure annihilation interaction, separating the effect of pion production. It was found that the root mean square of this range is given by (1.19\ifmmode\pm\else\textpm\fi{}0.07)\ifmmode\times\else\texttimes\fi{}${10}^{\ensuremath{-}13}$ cm almost independently of the energy.

Antiproton

Annihilation

10.1103/physrev.122.669

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Citations (2)

Multiplicity distributions and π0 production in antiproton-proton annihilation between 0 and 100 GeV/cproduction in antiproton-proton annihilation between 0 and 100 GeV/c

Il Nuovo Cimento A (1979)

R. Stenbacka C. Walck G. Ekspong S. Nilsson P. Gregory

Antiproton

Annihilation

Multiplicity (mathematics)

10.1007/bf02822325