Neutrino oscillations and the CPT

Abstract

We wnsider the generation of entropy when particle pairs are created at a wsmdogical level h&king a reduction via the panicle number basis, we compute the classical limit for the entropy generarion due to the evolution of the matter field fluctuations (squeeze kansfmmation). obtaining that it is linear in the squeeze parameter for a gened class of initial states. We also discuss t h e dependence of the generated entropy on the wane graining criterion. PACS number: 9880

Probing Lorentz and CPT violation in a magnetized iron detector using atmospheric neutrinos

“…In what follows, we examine the effects of three different representative sets of mixing 3 We note that the matrices appearing in the three terms in eq. (2.3) can in principle be diagonal in different bases, one in which the neutrino mass matrix is diagonal, a second one in which the Lorentz and CPT violating interactions are diagonal, and a third flavour basis.…”

“…the CPT theorem [1][2][3], is a linchpin of present-day quantum field theories underlying particle physics. It is noteworthy that this invariance under the product of purely discrete symmetries is actually a consequence of the invariance of the Lagrangian (L) under a connected continuous group, namely, proper Lorentz transformations.…”