Measurement of CP observables in B± → D(*)K± and B± → D(*)π± decays using two-body D final states; Journal of High Energy Physics; Vol. 2021, iss. 4
| Parent link: | Journal of High Energy Physics Vol. 2021, iss. 4.— 2021.— [81, 35 p.] |
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| Awduron Corfforaethol: | , |
| Awduron Eraill: | , , , , , , |
| Crynodeb: | Title screen Measurements of CP observables in B± → D(*)K± and B± → D(*)π± decays are presented, where D(∗) indicates a neutral D or D∗ meson that is an admixture of meson and anti-meson states. Decays of the D(∗) meson to the Dπ0 and Dγ final states are partially reconstructed without inclusion of the neutral pion or photon. Decays of the D meson are reconstructed in the K±π∓, K+K−, and π+π− final states. The analysis uses a sample of charged B mesons produced in proton-proton collisions and collected with the LHCb experiment, corresponding to integrated luminosities of 2.0, 1.0, and 5.7 fb−1 taken at centre-of-mass energies of 7, 8, and 13 TeV, respectively. The measurements of partially reconstructed B± → D(*)K± and B± → D(∗)π± with D → K∓π± decays are the first of their kind, and a first observation of the B± → (Dπ0)D∗π±(Dπ0)D∗π± decay is made with a significance of 6.1 standard deviations. All CP observables are measured with world-best precision, and in combination with other LHCb results will provide strong constraints on the CKM angle γ. |
| Iaith: | Saesneg |
| Cyhoeddwyd: |
2021
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| Pynciau: | |
| Mynediad Ar-lein: | https://doi.org/10.1007/JHEP04(2021)081 |
| Fformat: | Electronig Pennod Llyfr |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664738 |
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| 200 | 1 | |a Measurement of CP observables in B± → D(*)K± and B± → D(*)π± decays using two-body D final states |f R. Aaij, C. A. Beteta, T. Ackernley [et al.] | |
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| 300 | |a Title screen | ||
| 320 | |a [References: 48 tit.] | ||
| 330 | |a Measurements of CP observables in B± → D(*)K± and B± → D(*)π± decays are presented, where D(∗) indicates a neutral D or D∗ meson that is an admixture of meson and anti-meson states. Decays of the D(∗) meson to the Dπ0 and Dγ final states are partially reconstructed without inclusion of the neutral pion or photon. Decays of the D meson are reconstructed in the K±π∓, K+K−, and π+π− final states. The analysis uses a sample of charged B mesons produced in proton-proton collisions and collected with the LHCb experiment, corresponding to integrated luminosities of 2.0, 1.0, and 5.7 fb−1 taken at centre-of-mass energies of 7, 8, and 13 TeV, respectively. The measurements of partially reconstructed B± → D(*)K± and B± → D(∗)π± with D → K∓π± decays are the first of their kind, and a first observation of the B± → (Dπ0)D∗π±(Dπ0)D∗π± decay is made with a significance of 6.1 standard deviations. All CP observables are measured with world-best precision, and in combination with other LHCb results will provide strong constraints on the CKM angle γ. | ||
| 461 | |t Journal of High Energy Physics | ||
| 463 | |t Vol. 2021, iss. 4 |v [81, 35 p.] |d 2021 | ||
| 610 | 1 | |a электронный ресурс | |
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| 610 | 1 | |a CKM angle gamma | |
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