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The time-dependent angular distributions of decays of neutral $B$ mesons intotwo vector mesons contain information about the lifetimes, mass differences,strong and weak phases, form factors, and CP violating quantities. Astatistical analysis of the information content is performed by giving the``information'' a quantitative meaning. It is shown that for some parameters ofinterest, the information content in time and angular measurements combined maybe orders of magnitude more than the information from time measurements aloneand hence the angular measurements are highly recommended. The method ofangular moments is compared with the (maximum) likelihood method to find thatit works almost as well in the region of interest for the one-angledistribution. For the complete three-angle distribution, an estimate ofpossible statistical errors expected on the observables of interest isobtained. It indicates that the three-angle distribution, unraveled by themethod of angular moments, would be able to nail down many quantities ofinterest and will help in pointing unambiguously to new physics.Comment: LaTeX, 34 pages with 9 figure

physical review. d. particles, fields, gravitation, and cosmology/physical review. d. particles and fields

Information content in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mrow><mml:mover><mml:mrow><mml:mi>B</mml:mi></mml:mrow><mml:mrow><mml:mo>→</mml:mo></mml:mrow></mml:mover></mml:mrow></mml:mrow><mml:mi>VV</mml:mi></mml:math>decays and the angular moments method

Information content inB→VVdecays and the angular moments method