Measurement of branching fraction ratios for B+ → D*+D-K+, B+ → D*-D+K+, and B0 → D*-D0K+ decays

LHCb collaboration; S. Playfer

doi:10.1007/JHEP12(2020)139

Measurement of branching fraction ratios for B+ → D+D-K+, B+ → D-D+K+, and B0 → D*-D0K+ decays

LHCb collaboration, S. Playfer

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract / Description of output

A measurement of four branching-fraction ratios for three-body decays of B mesons involving two open-charm hadrons in the final state is presented. Run 1 and Run 2 pp collision data are used, recorded by the LHCb experiment at centre-of-mass energies 7, 8, and 13 TeV and corresponding to an integrated luminosity of 9 fb(-1). The measured branching-fraction ratios areBB+-> D+D-K+BB+-> D0D0K+=0.5170.0150.013 +/- 0.011,BB+-> D-D+K+BB+-> D0D0K+=0.577 +/- 0.016 +/- 0.013 +/- 0.013,BB0 -> D-D0K+BB0 -> D-D0K+=1.754 +/- 0.028 +/- 0.016 +/- 0.035,BB+-> D+D-K+BB+-> D-D+K+=0.907 +/- 0.033+/- 0.014,

where the first of the uncertainties is statistical, the second systematic, and the third is due to the uncertainties on the D-meson branching fractions. These are the most accurate measurements of these ratios to date.

Original language	English
Article number	139
Pages (from-to)	1-21
Number of pages	21
Journal	Journal of High Energy Physics
Volume	12
DOIs	https://doi.org/10.1007/JHEP12(2020)139
Publication status	Published - 21 Dec 2020

Keywords / Materials (for Non-textual outputs)

B physics
Branching fraction
Flavor physics
Hadron-Hadron scattering (experiments)

Access to Document

10.1007/JHEP12(2020)139Licence: Creative Commons: Attribution (CC-BY)

http://arxiv.org/abs/2005.10264

3 Finished
3 Active

Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C.
1/04/23 → 30/09/25
Project: Research
Experimental Particle Physics at the University of Edinburgh
Leonidopoulos, C.
1/10/22 → 30/09/25
Project: Research
Beautiful Flavours: Discovering New Physics with B-hadrons and Tau-leptons
Barter, W.
1/07/22 → 30/06/26
Project: Research

Cite this

@article{14febed9f6434c698ba53d7c9076446a,

title = "Measurement of branching fraction ratios for B+ → D*+D-K+, B+ → D*-D+K+, and B0 → D*-D0K+ decays",

abstract = "A measurement of four branching-fraction ratios for three-body decays of B mesons involving two open-charm hadrons in the final state is presented. Run 1 and Run 2 pp collision data are used, recorded by the LHCb experiment at centre-of-mass energies 7, 8, and 13 TeV and corresponding to an integrated luminosity of 9 fb(-1). The measured branching-fraction ratios areBB+-> D+D-K+BB+-> D0D0K+=0.5170.0150.013 +/- 0.011,BB+-> D-D+K+BB+-> D0D0K+=0.577 +/- 0.016 +/- 0.013 +/- 0.013,BB0 -> D-D0K+BB0 -> D-D0K+=1.754 +/- 0.028 +/- 0.016 +/- 0.035,BB+-> D+D-K+BB+-> D-D+K+=0.907 +/- 0.033+/- 0.014,where the first of the uncertainties is statistical, the second systematic, and the third is due to the uncertainties on the D-meson branching fractions. These are the most accurate measurements of these ratios to date.",

keywords = "B physics, Branching fraction, Flavor physics, Hadron-Hadron scattering (experiments)",

author = "{LHCb collaboration} and William Barter and P.E.L. Clarke and S. Gambetta and F. Muheim and M. Needham and Mark Williams and Federico Betti and Robert Currie and S. Eisenhardt and Lavra, {Lais Soares} and Gediminas Sarpis and S. Playfer",

year = "2020",

month = dec,

day = "21",

doi = "10.1007/JHEP12(2020)139",

language = "English",

volume = "12",

pages = "1--21",

journal = " Journal of High Energy Physics",

issn = "1029-8479",

publisher = "Springer",

}

TY - JOUR

T1 - Measurement of branching fraction ratios for B+ → D*+D-K+, B+ → D*-D+K+, and B0 → D*-D0K+ decays

AU - LHCb collaboration

AU - Barter, William

AU - Clarke, P.E.L.

AU - Gambetta, S.

AU - Muheim, F.

AU - Needham, M.

AU - Williams, Mark

AU - Betti, Federico

AU - Currie, Robert

AU - Eisenhardt, S.

AU - Lavra, Lais Soares

AU - Sarpis, Gediminas

AU - Playfer, S.

PY - 2020/12/21

Y1 - 2020/12/21

N2 - A measurement of four branching-fraction ratios for three-body decays of B mesons involving two open-charm hadrons in the final state is presented. Run 1 and Run 2 pp collision data are used, recorded by the LHCb experiment at centre-of-mass energies 7, 8, and 13 TeV and corresponding to an integrated luminosity of 9 fb(-1). The measured branching-fraction ratios areBB+-> D+D-K+BB+-> D0D0K+=0.5170.0150.013 +/- 0.011,BB+-> D-D+K+BB+-> D0D0K+=0.577 +/- 0.016 +/- 0.013 +/- 0.013,BB0 -> D-D0K+BB0 -> D-D0K+=1.754 +/- 0.028 +/- 0.016 +/- 0.035,BB+-> D+D-K+BB+-> D-D+K+=0.907 +/- 0.033+/- 0.014,where the first of the uncertainties is statistical, the second systematic, and the third is due to the uncertainties on the D-meson branching fractions. These are the most accurate measurements of these ratios to date.

AB - A measurement of four branching-fraction ratios for three-body decays of B mesons involving two open-charm hadrons in the final state is presented. Run 1 and Run 2 pp collision data are used, recorded by the LHCb experiment at centre-of-mass energies 7, 8, and 13 TeV and corresponding to an integrated luminosity of 9 fb(-1). The measured branching-fraction ratios areBB+-> D+D-K+BB+-> D0D0K+=0.5170.0150.013 +/- 0.011,BB+-> D-D+K+BB+-> D0D0K+=0.577 +/- 0.016 +/- 0.013 +/- 0.013,BB0 -> D-D0K+BB0 -> D-D0K+=1.754 +/- 0.028 +/- 0.016 +/- 0.035,BB+-> D+D-K+BB+-> D-D+K+=0.907 +/- 0.033+/- 0.014,where the first of the uncertainties is statistical, the second systematic, and the third is due to the uncertainties on the D-meson branching fractions. These are the most accurate measurements of these ratios to date.

KW - B physics

KW - Branching fraction

KW - Flavor physics

KW - Hadron-Hadron scattering (experiments)

U2 - 10.1007/JHEP12(2020)139

DO - 10.1007/JHEP12(2020)139

M3 - Article

SN - 1029-8479

VL - 12

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JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

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