Does positronium form in the universe?
نویسندگان
چکیده
منابع مشابه
ar X iv : a st ro - p h / 04 05 27 3 v 1 1 4 M ay 2 00 4 Does Positronium Form in the Universe ?
Positronium (the bound state of electron and positron) has been thought to be formed after proton decay (> 10yr) through collisional recombination and then decays by pair annihilation, thereby changing the matter content of the universe. We revisit the issue of the formation of positronium in the long-term future of the universe in light of recent indication that the universe is dominated by da...
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ژورنال
عنوان ژورنال: Journal of Cosmology and Astroparticle Physics
سال: 2004
ISSN: 1475-7516
DOI: 10.1088/1475-7516/2004/06/003