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Measurement of the CKM angle γ using B[superscript ±] → DK[superscript ±] with D → K[0 over S] π[superscript +] π[superscript −], K[0 over S] K[superscript +] K[superscript −] decays

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dc.contributor Massachusetts Institute of Technology. Department of Physics
dc.contributor Massachusetts Institute of Technology. Laboratory for Nuclear Science
dc.contributor Counts, Ian Thomas Hunt
dc.contributor Ilten, Philip James
dc.contributor Williams, M.
dc.creator Counts, Ian Thomas Hunt
dc.creator Ilten, Philip J
dc.creator Williams, Michael
dc.date 2014-12-30T21:31:50Z
dc.date 2014-12-30T21:31:50Z
dc.date 2014-10
dc.date 2014-08
dc.date.accessioned 2023-03-01T18:09:47Z
dc.date.available 2023-03-01T18:09:47Z
dc.identifier 1029-8479
dc.identifier 1126-6708
dc.identifier http://hdl.handle.net/1721.1/92562
dc.identifier Aaij, R., B. Adeva, M. Adinolfi, A. Affolder, Z. Ajaltouni, S. Akar, J. Albrecht, et al. “Measurement of the CKM Angle γ Using B[superscript ±] → DK[superscript ±] with D → K[0 over S] π[superscript +] π[superscript −], K[0 over S] K[superscript +] K[superscript −] Decays.” J. High Energ. Phys. 2014, no. 10 (October 2014).
dc.identifier https://orcid.org/0000-0001-8285-3346
dc.identifier https://orcid.org/0000-0002-4670-1334
dc.identifier https://orcid.org/0000-0001-5534-1732
dc.identifier.uri http://localhost:8080/xmlui/handle/CUHPOERS/278987
dc.description A binned Dalitz plot analysis of B[superscript ±] → DK[superscript ±] decays, with D → K[0 over S] π[superscript +] π[superscript −] and K[0 over S] K[superscript +] K[superscript −], is performed to measure the CP-violating observables x[subscript ±] and y[subscript ±], which are sensitive to the Cabibbo-Kobayashi-Maskawa angle γ. The analysis exploits a sample of proton-proton collision data corresponding to 3.0 fb[superscript −1] collected by the LHCb experiment. Measurements from CLEO-c of the variation of the strong-interaction phase of the D decay over the Dalitz plot are used as inputs. The values of the parameters are found to be x[subscript +] = (−7.7 ± 2.4 ± 1.0 ± 0.4) × 10[superscript − 2], x[subscript −] = (2.5 ± 2.5 ± 1.0 ± 0.5) × 10[superscript − 2], y[subscript +] = (−2.2 ± 2.5 ± 0.4 ± 1.0) × 10[superscript − 2] and y[subscript −] = (7.5 ± 2.9 ± 0.5 ± 1.4) × 10[superscript − 2]. The first, second, and third uncertainties are the statistical, the experimental systematic, and that associated with the precision of the strong-phase parameters. These are the most precise measurements of these observables and correspond to γ = (62[+15 over -14])° , with a second solution at γ → γ + 180°, and r[subscript B]  = 0.080 [+0.019 over -0.021], where r[subscript B] is the ratio between the suppressed and favoured B decay amplitudes.
dc.description National Science Foundation (U.S.)
dc.format application/pdf
dc.language en_US
dc.publisher Springer-Verlag
dc.relation http://dx.doi.org/10.1007/jhep10(2014)097
dc.relation Journal of High Energy Physics
dc.rights Creative Commons Attribution
dc.rights http://creativecommons.org/licenses/by/4.0/
dc.source Springer-Verlag
dc.title Measurement of the CKM angle γ using B[superscript ±] → DK[superscript ±] with D → K[0 over S] π[superscript +] π[superscript −], K[0 over S] K[superscript +] K[superscript −] decays
dc.type Article
dc.type http://purl.org/eprint/type/JournalArticle


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