Europhys. Lett.
Volume 67, Number 4, August 2004
Page(s) 579 - 585
Section The physics of elementary particles and fields
Published online 01 August 2004
Europhys. Lett., 67 (4), pp. 579-585 (2004)
DOI: 10.1209/epl/i2004-10092-x

Probing new physics via an angular analysis of ${B\rightarrow V_1V_2}$ decays

D. London1, N. Sinha2 and R. Sinha2

1  Laboratoire René J.-A. Lévesque, Université de Montréal C.P. 6128, succ. centre-ville, Montréal, QC, Canada H3C 3J7
2  Institute of Mathematical Sciences, C. I. T. Campus Taramani, Chennai 600 113, India

(Received 8 April 2004; accepted in final form 7 June 2004)

We show that an angular analysis of ${B\rightarrow V_1V_2}$ decays yields numerous tests for new physics (NP) in the decay amplitudes. Many of these NP 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 NP parameters, as well as on their effect on the measurement of the phase of B0- $\bar{B}^0$ mixing.

13.20.He - Decays of bottom mesons.
11.30.Er - Charge conjugation, parity, time reversal, and other discrete symmetries.
12.15.Hh - Determination of Kobayashi-Maskawa matrix elements.

© EDP Sciences 2004