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Chin. Phys., 2006, Vol. 15(1): 229-231    DOI: 10.1088/1009-1963/15/1/038

Mass neutrino oscillations in Robertson--Walker space--time

Li Ze-Juna, Huang Xiu-Jub, Wang Yong-Jiub
a Department of Physics and Electronics, Hunan University of Arts and Science, Changde 415000, China; b Institute of Physics, Hunan Normal University, Changsha 410081, China
Abstract  Along the geodesic we calculate the interference phase of the mass neutrinos propagating in the radial direction in Robertson--Walker space--time. Since our universe is expanding, the phase factor Ph is increasing under the condition of the same proper physical distance l. Different values of curvature parameter k in Robertson--Walker metric represent different cosmological models, correspondingly, we obtain the different interference phases.
Keywords:  interference phase      mass neutrino      Robertson--Walker space--time  
Received:  29 March 2005      Revised:  01 September 2005      Published:  20 January 2006
PACS:  98.80.Es (Observational cosmology (including Hubble constant, distance scale, cosmological constant, early Universe, etc))  
  98.80.Cq (Particle-theory and field-theory models of the early Universe (including cosmic pancakes, cosmic strings, chaotic phenomena, inflationary universe, etc.))  
  14.60.Pq (Neutrino mass and mixing)  
  14.60.Lm (Ordinary neutrinos)  
Fund: Project supported by the State Key Development Program for Basic Research of China (Grant No2003CB716300).

Cite this article: 

Li Ze-Jun, Huang Xiu-Ju, Wang Yong-Jiu Mass neutrino oscillations in Robertson--Walker space--time 2006 Chin. Phys. 15 229

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