https://doi.org/10.1140/epjc/s10052-008-0702-7
Regular Article - Theoretical Physics
Signal of new physics and chemical composition of matter in core-crossing neutrinos
1
Institute of Modern Physics, East China University of Science and Technology, P.O. Box 532, 130 Meilong Road, Shanghai, 200237, People’s Republic of China
2
Center for High Energy Physics, Peking University, Beijing, 100871, People’s Republic of China
* e-mail: liaow@ecust.edu.cn
Received:
24
June
2008
Revised:
25
July
2008
Published online:
28
August
2008
We consider the non-standard matter effect in flavor conversion of neutrinos crossing the core of the Earth. We show that oscillations of core-crossing neutrinos with E≳0.5 GeV can well be described by first order perturbation theory. We show that due to the non-standard matter effect a varying chemical composition in the Earth can modify the neutrino flavor conversion by 100%. The effects of CP violating phases in non-standard neutral current interactions are emphasized in particular.
PACS: 14.60.Pq – / 13.15.+g –
© Springer-Verlag , 2008
