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A new approach to the problem of dark matter

Новый подход к пробле ше черного вещества

  • Published:
Il Nuovo Cimento B (1971-1996)

Summary

The properties of X’s (the elementary constituents of dark matter) are chosenad hoc with the primary aim of solving three troublesome astrophysical puzzles : a X should have a mass larger than 4 proton masses and a collision cross-section with nucleons of ~ 2.10-37 cm2; easily escaping « dark radiation » could be emitted in a collision. X’s would steadily accrete into stars and concentrate in their cores; they would speed up significantly the evolution of low-mass stars and modify the final scenario. The71Gra neutrino experiment should allow definite conclusions concerning the presence of X’s in the Sun.

it]Riassunto

Si scelgonoad hoc le proprietà di X (i costituenti elementari della materia scura) con lo scopo principale di risolvere tre « rompicapo » astrofisici : X dovrebbe avere una massa maggiore di 4 masse protoniche ed una sezione d’urto di collisione con nucleoni di ~ 2.10-37 cm2; in una collisione potrebbe essere ammessa una «radiazione scura» che sfugge facilmente. Gli X crescerebbero nel loro nucleo ; accelerebbero significativamente l’evoluzione delle stelle a massa piccola e modificherebbero lo scenario finale. L’esperimento dei neutrini in71Ga permetterebbe di trarre conclusioni definitive riguardo alla presenza di X nel Sole.

Резюме

С целью решения трех а строфизических проблем обсуждаются свойства Х (элементарных соста вляющих черного веще ства): Х должны иметь массу больше 4 протонных мас с и поперечное сечени е соударения с нуклона ми составляет по порядку величины ∼ 2.10-37 см3; при соударениях может испускаться « черное излучение ». Х стацион арного аккретируют в звездах и концентрируются в их остовах; они значительно уско ряют эволюцию звезд с малой массой и изменяют кон ечный сценарий. Результаты эксперимента с71Ga нейт рино позволят сделать опр еделенные выводы о наличии Х в Со лнце.

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Finzi, A. A new approach to the problem of dark matter. Nuov Cim B 95, 71–81 (1986). https://doi.org/10.1007/BF02749003

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