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- W1607350003 abstract "We first present the vacuum for the e+‐e− field of QED and show how it is modified for baryons in the nuclear environment. We then study the possibility of producing a new kind of nuclear systems which in addition to ordinary nuclei contain a few antibaryons (B̄ = p̄, Λ̄, etc). The properties of such systems are described within the relativistic mean‐field model by employing G‐parity transformed interactions for antibaryons. Calculations are done for finite nuclei from 4He to 208Pb. It is demonstrated that the presence of a real antibaryon leads to a strong rearrangement of a target nucleus resulting in a significant increase of its binding energy and local compression. Noticeable effects remain even after the antibaryon coupling constants are reduced by a factor of 3–4 compared to G‐parity motivated values. We have performed detailed calculations of the antibaryon annihilation rates in the nuclear environment by applying the kinetic approach. It is shown hat due to a significant reduction of the reaction Q‐values, the in‐medium annihilation rates should be strongly suppressed leading to relatively long‐lived antibaryon‐nucleus systems. Multi‐nucleon annihilation channels are analyzed too. We have also estimated formation probabilities of antiproton+A bound systems in antiproton−A reactions and have found that their observation is feasible at the future GSI antibaryon facility. Several observable signatures are proposed. The possibility of producing multi‐quark‐antiquark clusters is discussed." @default.
- W1607350003 created "2016-06-24" @default.
- W1607350003 creator A5061297345 @default.
- W1607350003 date "2007-01-01" @default.
- W1607350003 modified "2023-09-26" @default.
- W1607350003 title "Clusters of Matter and Antimatter" @default.
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- W1607350003 doi "https://doi.org/10.1063/1.2435290" @default.
- W1607350003 hasPublicationYear "2007" @default.
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