Evidence of direct T violation in the B system

ALVAREZ, E. Y SZYNKMAN, A.

MODERN PHYSICS LETTERS A

World Scientific

Lugar: Londres; Año: 2008 vol. 23 p. 2085 - 2091

0217-7323

 In this letter we reinterpret and reanalyze the available data of the B-factories showing the existence of experimental evidence of direct T violation in the B system. This reinterpretation consists in using the available observables to define a new observable which, in a model independent way and without assuming CPT invariance, compares a transition between a flavour $B$-state and a here-defined $B_alpha$-state, and its T-reversed transition. This new observable turns out to be, in addition, not null in the limit of a vanishing mean life time difference between the neutral B mass eigenstates. As far as the authors are concerned, this is the first existing evidence of direct T violation in the B system.