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Author  |
LHCb Collaboration (Aaij, R. et al); Jaimes Elles, S.J.; Jashal, B.K.; Libralon, S.; Martinez-Vidal, F.; Oyanguren, A.; Rebollo De Miguel, M.; Sanderswood, I.; Zhuo, J. |
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Title |
Amplitude analysis and branching fraction measurement of B+ → D*-Ds+π+ decays |
Type |
Journal Article |
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Year |
2024 |
Publication |
Journal of High Energy Physics |
Abbreviated Journal |
J. High Energy Phys. |
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Volume |
08 |
Issue |
8 |
Pages |
165 - 40pp |
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Keywords |
Branching fraction; Charm Physics; Hadron-Hadron Scattering; Spectroscopy |
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Abstract |
The decays of the B+ meson to the final state D*D--(s)+pi(+) are studied in proton-proton collision data collected with the LHCb detector at centre-of-mass energies of 7, 8, and 13 TeV, corresponding to a total integrated luminosity of 9 fb(-1). The ratio of branching fractions of the B+ -> D-Ds+pi(+) and B-0 -> D*D--(s)+ decays is measured to be 0.173 +/- 0.006 +/- 0.010, where the first uncertainty is statistical and the second is systematic. Using partially reconstructed D-s*(+) -> D-s*(+)gamma and D-s(+)pi(0) decays, the ratio of branching fractions between the B+ -> D*D--(s)*(+)pi(+) and B+ -> D*D--(s)+pi(+) decays is determined as 1.31 +/- 0.07 +/- 0.14. An amplitude analysis of the B+ -> D*D--(s)+pi(+) decay is performed for the first time, revealing dominant contributions from known excited charm resonances decaying to the D*(-)pi(+) final state. No significant evidence of exotic contributions in the D-s(+)pi(+) or D*D--(s)+ channels is found. The fit fraction of the scalar state T*(c (s) over bar0) (2900)(++) observed in the B+ -> D-Ds+pi(+) decay is determined to be less than 2.3% at a 90% confidence level. |
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Address |
[Egede, U.; Fujii, Y.; Hadavizadeh, T.; Henderson, R. D. L.; Lane, J. J.; Liu, F. L.; Monk, M.; Song, R.; Walton, E. J.; Ward, J. A.] Monash Univ, Sch Phys & Astron, Melbourne, Vic, Australia, Email: raul.iraq.rabadan.trejo@cern.ch |
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Thesis |
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Publisher |
Springer |
Place of Publication |
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Editor |
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Language |
English |
Summary Language |
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Original Title |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
1029-8479 |
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Notes |
WOS:001426569300001 |
Approved |
no |
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Is ISI |
yes |
International Collaboration |
yes |
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Call Number |
IFIC @ pastor @ |
Serial |
6556 |
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