Aaij, R, Abellán Beteta, C, Adeva, B, Adinolfi, M, Aidala, CA, Ajaltouni, Z, Akar, S, Albicocco, P, Albrecht, J, Alessio, F et al (show 90 more authors)
(2019)
Study of the B <sup>0</sup> → ρ(770)°K <sup>*</sup> (892) <sup>0</sup> decay with an amplitude analysis of B <sup>0</sup> → (π <sup>+</sup> π <sup>−</sup> )(K <sup>+</sup> π <sup>−</sup> ) decays.
Journal of High Energy Physics, 2019 (5).
Text
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Abstract
© 2019, The Author(s). An amplitude analysis of B 0 → (π + π − )(K + π − ) decays is performed in the two-body invariant mass regions 300 < m(π + π − ) < 1100 MeV/c 2 , accounting for the ρ 0 , ω, f 0 (500), f 0 (980) and f 0 (1370) resonances, and 750 < m(K + π − ) < 1200 MeV/c 2 , which is dominated by the K * (892) 0 meson. The analysis uses 3 fb −1 of proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. The CP averages and asymmetries are measured for the magnitudes and phase differences of the con- tributing amplitudes. The CP-averaged longitudinal polarisation fractions of the vector-vector modes are found to be f˜ρK*0 = 0.164 ± 0.015 ± 0.022 and f˜ωK*0 = 0.68 ± 0.17 ± 0.16, and their CP asymmetries, AρK*0 = −0.62 ± 0.09 ± 0.09 and AωK*0 = −0.13 ± 0.27 ± 0.13, where the first uncertainty is statistical and the second systematic.[Figure not available: see fulltext.].
Item Type: | Article |
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Depositing User: | Symplectic Admin |
Date Deposited: | 15 Aug 2019 10:05 |
Last Modified: | 19 Jan 2023 00:29 |
DOI: | 10.1007/JHEP05(2019)026 |
Open Access URL: | http://doi.org/10.1007/JHEP05(2019)026 |
URI: | https://livrepository.liverpool.ac.uk/id/eprint/3051823 |