Measurement of CP Violation Parameters in B[superscript 0] → D K[superscript * 0] Decays
An analysis of B[superscript 0]→DK[superscript ∗0] decays is presented, where D represents an admixture of D[superscript 0] and [bar over D][superscript 0] mesons reconstructed in four separate final states: K[superscript -]π[superscript +], π[superscript -]K[superscript +], K[superscript +]K[supers...
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American Physical Society (APS)
2018
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Online Access: | http://hdl.handle.net/1721.1/116311 https://orcid.org/0000-0002-4670-1334 https://orcid.org/0000-0001-5534-1732 https://orcid.org/0000-0001-8285-3346 |
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author | Counts, Ian Thomas Hunt Ilten, Philip J Williams, Michael |
author2 | Massachusetts Institute of Technology. Department of Physics |
author_facet | Massachusetts Institute of Technology. Department of Physics Counts, Ian Thomas Hunt Ilten, Philip J Williams, Michael |
author_sort | Counts, Ian Thomas Hunt |
collection | MIT |
description | An analysis of B[superscript 0]→DK[superscript ∗0] decays is presented, where D represents an admixture of D[superscript 0] and [bar over D][superscript 0] mesons reconstructed in four separate final states: K[superscript -]π[superscript +], π[superscript -]K[superscript +], K[superscript +]K[superscript -] and π[superscript +]π[superscript -]. The data sample corresponds to 3.0fb[superscript -1] of proton-proton collision, collected by the LHCb experiment. Measurements of several observables are performed, including CP asymmetries. The most precise determination is presented of r[subscript B](DK[superscript ∗0]), the magnitude of the ratio of the amplitudes of the decay B[superscript 0]→DK[superscript +]π[superscript -] with a b→u or a b→c transition, in a Kπ mass region of ±50 MeV/c[superscript 2] around the K∗(892) mass and for an absolute value of the cosine of the K[superscript ∗0] helicity angle larger than 0.4. |
first_indexed | 2024-09-23T08:56:50Z |
format | Article |
id | mit-1721.1/116311 |
institution | Massachusetts Institute of Technology |
last_indexed | 2024-09-23T08:56:50Z |
publishDate | 2018 |
publisher | American Physical Society (APS) |
record_format | dspace |
spelling | mit-1721.1/1163112022-09-26T09:25:34Z Measurement of CP Violation Parameters in B[superscript 0] → D K[superscript * 0] Decays Counts, Ian Thomas Hunt Ilten, Philip J Williams, Michael Massachusetts Institute of Technology. Department of Physics Counts, Ian Thomas Hunt Ilten, Philip J Williams, Michael An analysis of B[superscript 0]→DK[superscript ∗0] decays is presented, where D represents an admixture of D[superscript 0] and [bar over D][superscript 0] mesons reconstructed in four separate final states: K[superscript -]π[superscript +], π[superscript -]K[superscript +], K[superscript +]K[superscript -] and π[superscript +]π[superscript -]. The data sample corresponds to 3.0fb[superscript -1] of proton-proton collision, collected by the LHCb experiment. Measurements of several observables are performed, including CP asymmetries. The most precise determination is presented of r[subscript B](DK[superscript ∗0]), the magnitude of the ratio of the amplitudes of the decay B[superscript 0]→DK[superscript +]π[superscript -] with a b→u or a b→c transition, in a Kπ mass region of ±50 MeV/c[superscript 2] around the K∗(892) mass and for an absolute value of the cosine of the K[superscript ∗0] helicity angle larger than 0.4. National Science Foundation (U.S.) 2018-06-14T15:26:29Z 2018-06-14T15:26:29Z 2014-12 2014-07 2018-05-11T17:30:20Z Article http://purl.org/eprint/type/JournalArticle 1550-7998 1550-2368 http://hdl.handle.net/1721.1/116311 Aaij, R., et al. “Measurement of CP Violation Parameters in B[superscript 0] → D K[superscript * 0] Decays.” Physical Review D, vol. 90, no. 11, Dec. 2014. © 2014 CERN, for the LHCb Collaboration. https://orcid.org/0000-0002-4670-1334 https://orcid.org/0000-0001-5534-1732 https://orcid.org/0000-0001-8285-3346 http://dx.doi.org/10.1103/PHYSREVD.90.112002 Physical Review D Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society (APS) American Physical Society |
spellingShingle | Counts, Ian Thomas Hunt Ilten, Philip J Williams, Michael Measurement of CP Violation Parameters in B[superscript 0] → D K[superscript * 0] Decays |
title | Measurement of CP Violation Parameters in B[superscript 0] → D K[superscript * 0] Decays |
title_full | Measurement of CP Violation Parameters in B[superscript 0] → D K[superscript * 0] Decays |
title_fullStr | Measurement of CP Violation Parameters in B[superscript 0] → D K[superscript * 0] Decays |
title_full_unstemmed | Measurement of CP Violation Parameters in B[superscript 0] → D K[superscript * 0] Decays |
title_short | Measurement of CP Violation Parameters in B[superscript 0] → D K[superscript * 0] Decays |
title_sort | measurement of cp violation parameters in b superscript 0 d k superscript 0 decays |
url | http://hdl.handle.net/1721.1/116311 https://orcid.org/0000-0002-4670-1334 https://orcid.org/0000-0001-5534-1732 https://orcid.org/0000-0001-8285-3346 |
work_keys_str_mv | AT countsianthomashunt measurementofcpviolationparametersinbsuperscript0dksuperscript0decays AT iltenphilipj measurementofcpviolationparametersinbsuperscript0dksuperscript0decays AT williamsmichael measurementofcpviolationparametersinbsuperscript0dksuperscript0decays |