Abstract
After a brief introduction to neutrino mass via the see-saw model I discuss neutrino mixing and oscillation, first in vacuum and then its matter enhancement. Then the solar and atmospheric neutrino oscillation data are briefly reviewed. Finally I discuss the problem of reconciling hierarchical neutrino masses with at least one large mixing, as implied by these data. A minimal see-saw model for reconciling the two is discussed.
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References
M Gell-Mann, P Ramond and R Slansky, in Supergravity, Proceedings of the Workshop, Stony Brook, New York (North-Holland, Amsterdam, 1979)
T Yanagida, in Proceedings of the Workshop on Unified Theories and Baryon Number in the Universe, Tsukuba, Japan (KEK Report No. 79-18) 1979
R N Mohapatra and G Senjanović, Phys. Rev. Lett. 44, 912 (1980)
R E Marshak and R N Mohapatra, Phys. Lett. B91, 222 (1980)
B Pontecorvo, JETP 33, 549 (1957); 34, 247 (1958); 53, 1717 (1967)
S P Mikheyev and A Y Smirnov, Yad. Fiz. 42, 1441 (1985); Nuovo Cimento 9C, 17 (1986)
L Wolfenstein, Phys. Rev. D17, 2369 (1978)
H Bethe, Phys. Rev. Lett. 56, 1305 (1986)
See e.g. K Whisnant, Proceedings of Neutrino Masses and Neutrino Astrophysics (Ashland, 1987)
S J Parke, Phys. Rev. Lett. 57, 1275 (1986)
S J Parke and T P Walker, Phys. Rev. Lett. 57, 2322 (1986)
S T Petcov, hep-ph/9806466
J N Bahcall, Neutrino Astrophysics (Cambridge University Press, Cambridge, 1989)
GALLEX Collaboration: W Hampel et al, Phys. Lett. B388, 364 (1996)
SAGE Collaboration: V Garvin et al, Neutrino-98 (Takayama, Japan, 1998)
Homestake Expt.: B T Cleveland et al, Astrophys. J. 496, 505 (1998)
R Davis, Prog. Part. Nucl. Phys. 32, 13 (1994)
Kamiokande Collaboration: K S Hirata et al, Phys. Rev. Lett. 77, 1683 (1996)
Super-Kamıokande Collaboration: Y Suzuki, Neutrino-98 (Takayama, Japan, 1998)
N Hata and P G Langacker, Phys. Rev. D56, 6107 (1997)
J N Bahcall, P J Krastev and A Y Smirnov, Phys. Rev. D58, 096016 (1998)
Kamiokande Collaboration: Y Fukuda et al, Phys. Lett. B335, 237 (1994)
Super-Kamiokande Collaboration: Phys. Rev. Lett. 81, 1562 (1998)
IMB Collaboration: R Becker-Szendy et al, Nucl. Phys. 38, 331 (1995)
Soudan-2 Expt.: W W M Allison et al, hep-ex/9901024
CHOOZ Collaboration: M Appollonio et al, Phys. Lett. B420, 397 (1998)
Ernest Ma, D P Roy and Utpal Sarkar, Phys. Lett. B444, 391 (1998)
Ernest Ma and D P Roy, Phys. Rev. D59, 097702 (1999)
LSND Collaboration: A Athanassopoalos et al, nucl-ex/9706006