Measurement of polarization amplitudes and CP asymmetries in B-0 -> phi K*(892)(0)
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Measurement of polarization amplitudes and CP asymmetries in B-0 -> phi K*(892)(0)

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Measurement of polarization amplitudes and CP asymmetries in B-0 -> phi K*(892)(0)

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LHCb Collaboration; Martínez Vidal, Fernando Perfil; Oyanguren Campos, Arantza Perfil; Ruiz Valls, Pablo; Sánchez Mayordomo, Carlos
Aquest document és un/a article, creat/da en: 2014
An angular analysis of the decay B (0) -> phi K (*)(892)(0) is reported based on a pp collision data sample, corresponding to an integrated luminosity of 1.0 fb(-1), collected at a centre-of-mass energy of root S = 7 TeV with the LHCb detector. The P-wave amplitudes and phases are measured with a greater precision than by previous experiments, and confirm about equal amounts of longitudinal and transverse polarization. The S-wave K+ pi(-) and K+ K- contributions are taken into account and found to be significant. A comparison of the B (0) -> phi K (*)(892)(0) and results shows no evidence for direct CP violation in the rate asymmetry, in the triple-product asymmetries or in the polarization amplitudes and phases.

    LHCb Collaboration Martínez Vidal, Fernando Oyanguren Campos, Arantza Ruiz Valls, Pablo Sánchez Mayordomo, Carlos 2014 Measurement of polarization amplitudes and CP asymmetries in B-0 -> phi K*(892)(0) Journal Of High Energy Physics 05 5 069-1 069-24
http://dx.doi.org/10.1007/JHEP05(2014)069
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