I.F.T.
Almuerzo-Seminario
(Lunch seminar)
April 14th 1999, 14:00 p.m.
T-Reversal Violation in CPLEAR and KTeV
Luis Álvarez-Gaumé
C.E.R.N.
Motivated by the recent CPLEAR measurement on the
time-reversal non-invariance, we review the situation concerning the
experimental measurements of charge conjugation, parity violation and
time reversibility, in systems with non-Hermitean Hamiltonians. This
includes in particular neutral meson systems, like K0-barK0, D0-barD0
and B0-barB0. We discuss the formalism that describes
particle-antiparticle mixing and time evolution of states, paying
particular emphasis to the orthogonality conditions of incoming and
outgoing states. As a result, we confirm that the CPLEAR experiment
makes a direct measurement of violation of time-reversal without any
assumption of unitarity and CPT-violation. The asymmetry which
signifies T-violation, is found to be independent of time and decay
processes.
The almuerzo-seminario is
intended to be an informal seminar and an open forum for discussion.
You are wellcome to bring your own
bocata (sandwich), or coffee or tea.
Where: Modulo C-XVI, 3rd floor,
Facultad de Ciencias U.A.M., C.U. Cantoblanco, 28049-Madrid
To get more information about this seminar e-mail
Tomás Ortín
or phone +34-91-397-8546
Last modified: Wed Mar 24 15:55:53 WET 1999