Study of the B0 → ρ(770)°K*(892)0 decay with an amplitude analysis of B0 → (π+π−)(K+π−) decays; Journal of High Energy Physics; Vol. 2019, iss. 5
| Parent link: | Journal of High Energy Physics Vol. 2019, iss. 5.— 2019.— [26, 30 p.] |
|---|---|
| Autor corporatiu: | , |
| Altres autors: | , , , , , |
| Sumari: | Title screen An amplitude analysis of B0 → (π+π−)(K+π−) decays is performed in the two-body invariant mass regions 300 < m(π+π−) < 1100 MeV/c2, accounting for the ρ0, ω, f0(500), f0(980) and f0(1370) resonances, and 750 < m(K+π−) < 1200 MeV/c2, 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~0ρK∗f~ρK∗0 = 0.164 ± 0.015 ± 0.022 and f~0ωK∗f~ωK∗0 = 0.68 ± 0.17 ± 0.16, and their CP asymmetries, A0ρK∗AρK∗0 = −0.62 ± 0.09 ± 0.09 and A0ωK∗AωK∗0 = −0.13 ± 0.27 ± 0.13, where the first uncertainty is statistical and the second systematic. |
| Idioma: | anglès |
| Publicat: |
2019
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| Matèries: | |
| Accés en línia: | https://doi.org/10.1007/JHEP05(2019)026 |
| Format: | xMaterials Electrònic Capítol de llibre |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663385 |
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| 200 | 1 | |a Study of the B0 → ρ(770)°K*(892)0 decay with an amplitude analysis of B0 → (π+π−)(K+π−) decays |f R. Aaij, C. A. Beteta, B. Adeva [et al.] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 52 tit.] | ||
| 330 | |a An amplitude analysis of B0 → (π+π−)(K+π−) decays is performed in the two-body invariant mass regions 300 < m(π+π−) < 1100 MeV/c2, accounting for the ρ0, ω, f0(500), f0(980) and f0(1370) resonances, and 750 < m(K+π−) < 1200 MeV/c2, 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~0ρK∗f~ρK∗0 = 0.164 ± 0.015 ± 0.022 and f~0ωK∗f~ωK∗0 = 0.68 ± 0.17 ± 0.16, and their CP asymmetries, A0ρK∗AρK∗0 = −0.62 ± 0.09 ± 0.09 and A0ωK∗AωK∗0 = −0.13 ± 0.27 ± 0.13, where the first uncertainty is statistical and the second systematic. | ||
| 461 | |t Journal of High Energy Physics | ||
| 463 | |t Vol. 2019, iss. 5 |v [26, 30 p.] |d 2019 | ||
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| 610 | 1 | |a Hadron-Hadron scattering (experiments) | |
| 610 | 1 | |a Polarization | |
| 701 | 1 | |a Aaij |b R. |g Roel | |
| 701 | 1 | |a Beteta |b C. A. |g Carlos Abellan | |
| 701 | 1 | |a Adeva |b B. |g Bernardo | |
| 701 | 1 | |a Shapkin |b M. M. |g Mikhail Mikhaylovich | |
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