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APS » Journals » Phys. Rev. D » Volume 64 » Issue 8
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Phys. Rev. D 64, 085015 (2001) [14 pages]

Massless neutrino oscillations

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F. Benatti
Dipartimento di Fisica Teorica, Università di Trieste, Strada Costiera 11, 34014 Trieste, Italy
Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Strada Costiera 11, 34014 Trieste, Italy

R. Floreanini
Istituto Nazionale di Fisica Nucleare, Sezione di Trieste, Strada Costiera 11, 34014 Trieste, Italy
Dipartimento di Fisica Teorica, Università di Trieste, Strada Costiera 11, 34014 Trieste, Italy

Received 23 May 2001; published 26 September 2001

Quantum dynamical semigroups provide a general framework for studying the evolution of open systems. Neutrino propagation both in vacuum and in matter can be analyzed using these techniques: They allow a consistent treatment of nonstandard, dissipative effects that can alter the pattern of neutrino oscillations. In particular, initially massless neutrinos can give rise to a nonvanishing flavor transition probability, involving in addition the Majorana CP-violating mixing phase.

© 2001 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.64.085015
DOI:
10.1103/PhysRevD.64.085015
PACS:
14.60.Pq, 03.65.Ca, 03.65.Yz
 
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