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In fact, what we want is Cold Dark Matter, which is already non-relativistic and slowly moving at the time of matter-radiation equality T ∼ 1 eV. Naively a light (sub-electronvolt) particle would not fit the bill. A less conservative hypothesis may be to postulate that there is a ...
The existence of sterile neutrino is an open question in neutrino physics up to now. The method of neutrino oscillometry provides a powerful tool to test the common 3 + 1 sterile neutrino hypothesis, i.e. three active flavors and one sterile flavor. There are several antineutrino sources which...
While the researchers ultimately did not observe the decay they hoped for, they did discover that the neutrino’s scale for decay is longer than the limit they placed on it, which they will test further during the next phase of the experiment. In addition, they recorded other scientific resul...
The final data analysis yielded a 5.1σ statistic against a hypothesis of no CNO neutrinos, and a CNO flux at the Earth of 7.0-1.9+2.9× 108 cm-2 s-1. Another highlight from Gran Sasso was the report from the Gerda collaboration on the search for neutrino-less double beta decay. If ...
Such a discovery would lend corroborating evidence to the leptogenesis hypothesis as a mechanism for generating matter-antimatter asymmetry in the Universe. Currently operating 0νββ experiments probe effective Majorana masses in the DH region. Several ambitious projects have been proposed with ...
The precision itself of the measurement of |〈m〉| in the next generation of (ββ)0ν-decay experiments, given the latter sensitivity limits of ∼(1.5–5.0)×10−2 eV, depends on the value of |〈m〉|. The KATRIN experiment [39] can test the hypothesis of a QD spectrum,9 ...
Most of the oscillation results are well described by the simple three-neutrino generation hypothesis. However, there are a few anomalous indications, the so-called reactor antineutrino anomaly27 among them, that cannot be explained this way. If confirmed, they would indicate the existence of ...
According to the hypothesis of Halbleib and Sorensen on the particle-hole force [65], the parameters vs and vt of the previous equations are different. For pp we have the t and s parameters defined in Eq. (23) related with vt and vt of Eq. (B17). While for the ph channel, we ha...
Starting with the hypothesis that quark and lepton mixings are identical at or near the GUT scale, we show that the large solar and atmospheric neutrino mi... RN Mohapatra,MK Parida,G Rajasekaran - 《Physical Review D》 被引量: 190发表: 2004年 Cosmological neutrino signatures for grand unif...