標題: Probing neutrino flavor transition mechanism with ultrahigh energy astrophysical neutrinos
作者: Lai, Kwang-Chang
Lin, Guey-Lin
Liu, Tsung-Che
物理研究所
Institute of Physics
公開日期: 6-二月-2014
摘要: Observation of ultrahigh energy astrophysical neutrinos and identification of their flavors have been proposed for future neutrino telescopes. The flavor ratio of astrophysical neutrinos observed on the Earth depends on both the initial flavor ratio at the source and flavor transitions taking place during propagations of these neutrinos. The flavor transition mechanisms are well classified with our model-independent parametrization. We find that a new parameter R equivalent to phi(e)/(phi(mu) + phi(tau)) can probe directly the flavor transition in the framework of our model-independent parametrization, without the assumption of the nu(mu)-nu(tau) symmetry. A few flavor-transition models are employed to test our parametrization with this new observable. The observational constraints on flavor transition mechanisms by the new observable are discussed through our model- independent parametrization.
URI: http://dx.doi.org/10.1103/PhysRevD.89.033002
http://hdl.handle.net/11536/23793
ISSN: 2470-0010
DOI: 10.1103/PhysRevD.89.033002
期刊: PHYSICAL REVIEW D
Volume: 89
Issue: 3
起始頁: 0
結束頁: 0
顯示於類別:期刊論文


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