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单词 non-baryonic
释义

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non-baryonic
non-baryonic adj.
Brit. /ˌnɒnbarɪˈɒnɪk/
,
U.S. /ˌnɑnˌbɛriˈɑnɪk/
Astronomy not containing or consisting of baryons (particles such as protons and neutrons which go to make up ordinary matter); (of a particle) that is not a baryon.
ΚΠ
1982 Philos. Trans. (Royal Soc.) A. 307 43 This implies that non-baryonic matter is not dominant by a large factor on scales as large as..small groups of galaxies.
1989 J. Silk Big Bang (rev. ed.) vii. 149 The universe need not be open if weakly interacting nonbaryonic particles provide the requisite contribution to the density.
1997 New Scientist 1 Nov. 18/2 The Universe contains about 25 times as much ‘non-baryonic’ dark matter—such as neutrinos—as ordinary baryonic matter.
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