Measurement of the CKM angle γ in B± → DK± and B± → Dπ± decays with D → K0 Sh+h−
A measurement of CP-violating observables is performed using the decays B → DK and B → Dπ , where the D meson is reconstructed in one of the self-conjugate three-body final states KS0π π and KS0K K (commonly denoted KS0h h ). The decays are analysed in bins of the D-decay phase space, leading t...
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| Format: | Article |
| Language: | English |
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Springer Science and Business Media LLC
2022
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| Online Access: | https://hdl.handle.net/1721.1/142427 |
| _version_ | 1811078555360034816 |
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| author | Williams, Michael |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Williams, Michael |
| author_sort | Williams, Michael |
| collection | MIT |
| description | A measurement of CP-violating observables is performed using the decays B → DK and B → Dπ , where the D meson is reconstructed in one of the self-conjugate three-body final states KS0π π and KS0K K (commonly denoted KS0h h ). The decays are analysed in bins of the D-decay phase space, leading to a measurement that is independent of the modelling of the D-decay amplitude. The observables are inter- preted in terms of the CKM angle γ. Using a data sample corresponding to an integrated luminosity of 9 fb collected in proton-proton collisions at centre-of mass energies of 7, 8, and 13 TeV with the LHCb experiment, γ is measured to be (68.7−5.1+5.2)°. The hadronic parameters rBDK,rBDπ,δBDK,andδBDπ, which are the ratios and strong-phase differences of the suppressed and favoured B decays, are also reported. [Figure not available: see fulltext.] ± ± ± ± + − + − + − −1 ± |
| first_indexed | 2024-09-23T11:02:03Z |
| format | Article |
| id | mit-1721.1/142427 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T11:02:03Z |
| publishDate | 2022 |
| publisher | Springer Science and Business Media LLC |
| record_format | dspace |
| spelling | mit-1721.1/1424272023-07-28T20:36:34Z Measurement of the CKM angle γ in B± → DK± and B± → Dπ± decays with D → K0 Sh+h− Williams, Michael Massachusetts Institute of Technology. Department of Physics A measurement of CP-violating observables is performed using the decays B → DK and B → Dπ , where the D meson is reconstructed in one of the self-conjugate three-body final states KS0π π and KS0K K (commonly denoted KS0h h ). The decays are analysed in bins of the D-decay phase space, leading to a measurement that is independent of the modelling of the D-decay amplitude. The observables are inter- preted in terms of the CKM angle γ. Using a data sample corresponding to an integrated luminosity of 9 fb collected in proton-proton collisions at centre-of mass energies of 7, 8, and 13 TeV with the LHCb experiment, γ is measured to be (68.7−5.1+5.2)°. The hadronic parameters rBDK,rBDπ,δBDK,andδBDπ, which are the ratios and strong-phase differences of the suppressed and favoured B decays, are also reported. [Figure not available: see fulltext.] ± ± ± ± + − + − + − −1 ± 2022-05-10T12:26:48Z 2022-05-10T12:26:48Z 2021-02-01 2022-05-10T12:14:09Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/142427 Williams, Michael. 2021. "Measurement of the CKM angle γ in B± → DK± and B± → Dπ± decays with D → K0 Sh+h−." Journal of High Energy Physics, 2021 (2). en 10.1007/JHEP02(2021)169 Journal of High Energy Physics Creative Commons Attribution 4.0 International License https://creativecommons.org/licenses/by/4.0 application/pdf Springer Science and Business Media LLC Springer |
| spellingShingle | Williams, Michael Measurement of the CKM angle γ in B± → DK± and B± → Dπ± decays with D → K0 Sh+h− |
| title | Measurement of the CKM angle γ in B± → DK± and B± → Dπ± decays with D → K0 Sh+h− |
| title_full | Measurement of the CKM angle γ in B± → DK± and B± → Dπ± decays with D → K0 Sh+h− |
| title_fullStr | Measurement of the CKM angle γ in B± → DK± and B± → Dπ± decays with D → K0 Sh+h− |
| title_full_unstemmed | Measurement of the CKM angle γ in B± → DK± and B± → Dπ± decays with D → K0 Sh+h− |
| title_short | Measurement of the CKM angle γ in B± → DK± and B± → Dπ± decays with D → K0 Sh+h− |
| title_sort | measurement of the ckm angle γ in b dk and b dπ decays with d k0 sh h |
| url | https://hdl.handle.net/1721.1/142427 |
| work_keys_str_mv | AT williamsmichael measurementoftheckmangleginbdkandbdpdecayswithdk0shh |