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Properties of a cosmological gas of bosons

Свойства космологического газа бозонов

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Il Nuovo Cimento B (1971-1996)

Summary

On the basis of red-shifted statistics of collisionless gas, the properties of decoupled cosmological boson gas are derived. The equations of states are considered for the various decoupling epochs and they are different from classical Bose gas, particularly, in the case of bosons which decoupled at their relativistic regime. The cosmological limits on the mass of boson are also considered.

Riassunto

Sulla base delle statistiche cosmologiche di gas privi di collisioni, si derivano le proprietà di un gas di bosoni dopo il disaccoppiamento dalla materia e dalle radiazioni. Varie equazioni di stato sono derivate per differenti epoche di disaccoppiamento che, specialmente per bosoni che si disaccoppiano in regime relativistico, sono molto differenti da quelli di un gas classico di bosoni. Sono fissati limiti cosmologici sulle masse dei bosoni.

Резюме

На основе статистики красного смещения для бесстолкновительного газа определяются свойства несвязанного космологического бозонного таза. Рассматриваются уравнения состояния для различных периодов нарушения связи. Эти уравнения отличаются от уравнений для классического Бозе-газа, в частности, в случае бозонов, которые являются несвязанными в релятивистском режиме. Также рассматриваются космологические пределы массы бозона.

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References

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Ohanian, H.C., Ruffini, R. & Song, D.J. Properties of a cosmological gas of bosons. Nuov Cim B 99, 45–52 (1987). https://doi.org/10.1007/BF02827402

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  • DOI: https://doi.org/10.1007/BF02827402

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