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2017-07

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/186475

Observation of the B+→D*-K+π+ decay

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https://doi.org/10.1103/PhysRevD.96.011101

Abstract

The B+→D*-K+π+decaypotentially provides an excellent way to investigate charm meson spectroscopy. The decay is searched for in a sample of proton-proton collision data collected with the LHCb detector at center-of-mass energies of 7 and 8 TeV, corresponding to an integrated luminosity of 3 fb-1 . A clear signal is observed, and the ratio of its branching fraction to that of the B+→D*-π+π+ normalization channel is measured to be B (B+→D*-K+π+)/B (B+→D*-π+π+)=(6.39 ±0.27 ±0.48 ) ×10-2, where the first uncertainty is statistical and the second is systematic. This is the first observation of the B+→D*-K+π+ decay.

Subject

Hadrons, Gran Col·lisionador d'Hadrons, Física de partícules, Experiments

Subject (English)

Hadrons, Large Hadron Collider (France and Switzerland), Particle physics, Experiments

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Articles publicats en revistes (Física Quàntica i Astrofísica)

Citation

CAMBONI, Alessandro, et al. Observation of the B+→D*-K+π+ decay. Physical Review D. 2017. Vol. 96, num. 011101, pags. 1-10. ISSN 2470-0010. [consulted: 18 of August of 2026]. Available at: https://hdl.handle.net/2445/186475

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