Probing New Physics via an Angular Analysis of B --> V1 V2 decays

Details Probing New Physics via an Angular Analysis of B --> V1 V2 decays Probing New Physics via an Angular Analysis of B --> V1 V2 decays

2003-04-23

arxiv.org/abs/hep-ph/0304230v2

Europhys.Lett. 67 (2004) 579-585

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, plain latex, no figures. Title modified slightly. Paragraph added about viability of method. Conclusions unchanged. T

Scientific paper

10.1209/epl/i2004-10092-x

We show that an angular analysis of B --> V1 V2 decays yields numerous tests for new physics in the decay amplitudes. Unlike direct CP asymmetries, many of these new-physics observables are nonzero even if the strong phase differences vanish. For certain observables, neither time-dependent measurements nor tagging is necessary. Should a signal for new physics be found, one can place a lower limit on the size of the new-physics parameters, as well as on their effect on the measurement of the phase of B0--Bbar0 mixing.

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