First observation of the decay B0→D0¯D0K+π−; Physical Review D; Vol. 102, iss. 5
| Parent link: | Physical Review D: particles, fields, gravitation, and cosmology Vol. 102, iss. 5.— 2020.— [051102, 11 p.] |
|---|---|
| 共著者: | , |
| その他の著者: | , , , , , , |
| 要約: | Title screen The first observation of the decay B0→D0¯D0K+π− is reported using proton-proton collision data corresponding to an integrated luminosity of 4.7 fb−1 collected by the LHCb experiment in 2011, 2012 and 2016. The measurement is performed in the full kinematically allowed range of the decay outside of the D*− region. The ratio of the branching fraction relative to that of the control channel B0→D*−D0K+ is measured to be R=(14.2±1.1±1.0)%, where the first uncertainty is statistical and the second is systematic. The absolute branching fraction of B0→D0¯D0K+π− decays is thus determined to be B(B0→D0¯D0K+π−)=(3.50±0.27±0.26±0.30)×10−4, where the third uncertainty is due to the branching fraction of the control channel. This decay mode is expected to provide insights to spectroscopy and the charm-loop contributions in rare semileptonic decays. |
| 言語: | 英語 |
| 出版事項: |
2020
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| 主題: | |
| オンライン･アクセス: | https://doi.org/10.1103/PhysRevD.102.051102 |
| フォーマット: | MixedMaterials 電子媒体 図書の章 |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=664714 |
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| 200 | 1 | |a First observation of the decay B0→D0¯D0K+π− |f R. Aaij, C. A. Beteta, T. Ackernley [et al.] | |
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| 330 | |a The first observation of the decay B0→D0¯D0K+π− is reported using proton-proton collision data corresponding to an integrated luminosity of 4.7 fb−1 collected by the LHCb experiment in 2011, 2012 and 2016. The measurement is performed in the full kinematically allowed range of the decay outside of the D*− region. The ratio of the branching fraction relative to that of the control channel B0→D*−D0K+ is measured to be R=(14.2±1.1±1.0)%, where the first uncertainty is statistical and the second is systematic. The absolute branching fraction of B0→D0¯D0K+π− decays is thus determined to be B(B0→D0¯D0K+π−)=(3.50±0.27±0.26±0.30)×10−4, where the third uncertainty is due to the branching fraction of the control channel. This decay mode is expected to provide insights to spectroscopy and the charm-loop contributions in rare semileptonic decays. | ||
| 461 | |t Physical Review D |o particles, fields, gravitation, and cosmology | ||
| 463 | |t Vol. 102, iss. 5 |v [051102, 11 p.] |d 2020 | ||
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