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Parity violation and neutrino mass

Parity violation and neutrino mass

Tsao Chang
Nuclear Science and TechniquesVol.13, No.3pp.129-133Published in print 01 Aug 2002
21600

Besides the fact of parity violation in weak interactions, based on evidences from neutrino oscillation and tritium beta decay, a natural conjecture is hat neutrinos may be spacelike particles with a tiny proper mass. A Dirac-type equation for spacelike neutrinos is further investigated and its solutions are discussed. This equation can be written in two spinor equations coupled together via nonzero proper mass while respecting maximum parity violation.

Parity violationSpacelike neutrinosNonzero proper mass
References
1 Lee T D, Yang C N. Phys Rev, 1956, 104: 254; Phys Rev, 1957, 105: 1671
2 Wu C S, Ambler E, Hayward R W et al. Phys Rev, 1957, 105: 1413
3 Fukuda Y, Hayakawa T, Ichihara E et al. Phys Rev Lett, 2001, 86: 5651, 1810: 1999, 82: 2130: 1998, 81: 1562
4 Athanassopoulos C, Auerbach L B, Burman R L et al. Phys Rev Lett, 1995, 75: 2650; 1996. 77: 3082; e-print nucl-ex/9706006
5 Klein J R. Solar Neutrino results from SNO, e-print hep-ex/0111040;
Baidu ScholarGoogle Scholar
6 Weinhermer Ch, Degenddag B, Bleile A et al. Phys Lett, 1999, B460: 219
7 Lobashev V M, Aseev V N, Belesev A I et al. Phys Lett, 1999, B460: 227
8 Bonn J, Weinheimer Ch. Acta Phys Pol, 2000, 31: 1209
9 Assamagan K, Daum M, Forrer H et al. Phys Rev, 1996, D53: 6065
10 Bilaniuk O M P, Deshpande V K, Sudarshan E C G. Am J Phys, 1962, 30: 718
11 Camenzind M, Recami E, Shay D et al. Tachyons monopoles and related topics. Amsterdam: North-Holland, 1978, and references therein; Found Phys, 2001, 31: 1119
12 Chang T. J Phys, 1979, A12: L203;

Does a free tachyon exist ?

. In: Proceedings of the Sh A. Eddington Centenary Symposium, Vol. 3, Gravitational Radiation and Relativity, 1986. 431
Baidu ScholarGoogle Scholar
13 Chodos A, Hauser A I, Kostelecky A V. Phys Lett, 1985, B150: 431
14 Ciborowski J, Rembielinski J. Europ Phys J, 1999, C8: 157;
15 Chang T, Ni G J.

An explanation of negative mass-square of neutrinos, e-print hep-ph/0009291

. Fizika, 2002, 11: 49;
Baidu ScholarGoogle Scholar
16 Ni G J. J Shanxi Norm Univ, 2001, 29(3): 1
17 Ai H B. Nucl Sci Tech (China), 2001, 12(4): 276
18 Dirac P A M. Proc R. Soc Ser, A117: 610; 1928, 118: 3510
19 Chodos A, Kostelecky V A. Phys Lett, 1994, B336: 295
20 Einstein A, Lorentz H A, Minkowski H et al. The principle of relativity (collected papers), Dover, New York, 1952
21 Tangherlini R. Nuov Cim, 1961, 20(Suppl): 1
22 Chang T. Phys lett, 1979, A70: 1
23 Rembiclinski J. Phys Lett, 1980, A78: 33