Measurement of the polarization amplitudes and triple product asymmetries in the B_s^0 -> phi phi decay

Details Measurement of the polarization amplitudes and triple product asymmetries in the B_s^0 -> phi phi decay Measurement of the polarization amplitudes and triple product asymmetries in the B_s^0 -> phi phi decay

2012-04-12

arxiv.org/abs/1204.2813v1

Physics

High Energy Physics

High Energy Physics - Experiment

Submitted to Phys. Lett. B, 19 pages, 5 figures

Scientific paper

Using 1.0 fb^{-1} of pp collision data collected at a centre-of-mass energy of sqrt{s}=7 TeV with the LHCb detector, measurements of the polarization amplitudes, strong phase difference and triple product asymmetries in the B_s^0 -> phi phi decay mode are presented. The measured values are |A_0|^2 = 0.365 +- 0.022 (stat) +- 0.012 (syst), |A_perp|^2 = 0.291 +- 0.024 (stat) +- 0.010 (syst), cos(delta_parallel) = -0.844 +- 0.068 (stat) +- 0.029 (syst), A_U = -0.055 +- 0.036 (stat) +- 0.018 (syst), A_V = 0.010 +- 0.036 (stat) +- 0.018 (syst) .

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