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

Abstract : 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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http://hal.in2p3.fr/in2p3-00687423
Contributor : Sabine Starita <>
Submitted on : Friday, April 13, 2012 - 10:21:42 AM
Last modification on : Friday, November 20, 2020 - 3:30:14 PM

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R. Aaij, S. Barsuk, O. Callot, J. He, B. Jean-Marie, et al.. Measurement of the polarization amplitudes and triple product asymmetries in the B_s^0 -> phi phi decay. Physics Letters B, Elsevier, 2012, 713, pp.369-377. ⟨10.1016/j.physletb.2012.06.012⟩. ⟨in2p3-00687423⟩

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