https://scholars.lib.ntu.edu.tw/handle/123456789/606577
標題: | Measurement of Differential Branching Fractions of Inclusive B →xu?+ν? Decays | 作者: | PAO-TI CHANG WEI-SHU HOU |
關鍵字: | Branching fractions; Cabibbo-Kobayashi-Maskawa matrix; Data set; Function modelling; Hadronics; Integrated luminosity; Kobayashi-Maskawa matrix element; Measurements of; Model independent; Shape functions; Atomic physics; article; lepton; luminance; plant cone; tension | 公開日期: | 2021 | 卷: | 127 | 期: | 26 | 來源出版物: | Physical Review Letters | 摘要: | The first measurements of differential branching fractions of inclusive semileptonic B→Xu?+ν? decays are performed using the full Belle data set of 711 fb-1 of integrated luminosity at the (4S) resonance and for ?=e, μ. With the availability of these measurements, new avenues for future shape-function model-independent determinations of the Cabibbo-Kobayashi-Maskawa matrix element |Vub| can be pursued to gain new insights in the existing tension with respect to exclusive determinations. The differential branching fractions are reported as a function of the lepton energy, the four-momentum-transfer squared, light-cone momenta, the hadronic mass, and the hadronic mass squared. They are obtained by subtracting the backgrounds from semileptonic B→Xc?+ν? decays and other processes, and corrected for resolution and acceptance effects. ? 2021 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85123362235&doi=10.1103%2fPhysRevLett.127.261801&partnerID=40&md5=79e8086c1d6c54ff2598e79a63409a0d https://scholars.lib.ntu.edu.tw/handle/123456789/606577 |
ISSN: | 319007 | DOI: | 10.1103/PhysRevLett.127.261801 |
顯示於: | 物理學系 |
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