ON THE NEUTRINO MASS,THE ABUNDANCE OF RIGHT-HANDED NEUTRINO AND THE CLOSENESS OF THE UNIVERSE |
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Authors: | CHING Cheng-rui WU Yong-shi HO Tso-shiu CHANG Chao-his ZOU Zhen-long |
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Institution: | 1. Institute of Theoretical Physics, Academia Sinica, China;
2. Institute of high Energy physics, Academia sinina, China;
3. The Peking Observatory, Academia sinica, China |
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Abstract: | We point out that although the neutrino mass is finite,the left-handed neutrino density still dominates over the righthanded one in the universe unless there exists one or more elementary fernions (quark or lepton) whose mass is larger than 106 GeV. or MWR/MWL≤102. (MWLand MWR are the left and right handed intermediate boson respectively.If there exists neutrino the mass of which is about 34 ev. as indicated in some experiments, then one can conclude that the total neutrino mass of the universe s,bvld contribute abput 99%. to the whole masses and lead to the closeness of the universe.This conclusion can be brought to the agreement of all observation datd which have been-obtained so far. A mass limit of all species of neutrinos obtained by reexamining all data is ≤ 200 eV. |
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