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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/133604
First Observation of the Decay B+c→J/ψπ+π−π+
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The decay B + c → J / ψ π + π − π + is observed for the first time, using 0.8 fb − 1 of p p collisions at √ s = 7 TeV collected by the LHCb experiment. The ratio of branching fractions B ( B + c → J / ψ π + π − π + ) / B ( B + c → J / ψ π + ) is measured to be 2.41 ± 0.30 ± 0.33 , where the first uncertainty is statistical and the second is systematic. The result is in agreement with theoretical predictions.
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ABELLAN BETETA, Carlos, et al. First Observation of the Decay B+c→J/ψπ+π−π+. Physical Review Letters. 2012. Vol. 108, num. 25, pags. 251802. ISSN 0031-9007. [consulted: 6 of October of 2026]. Available at: https://hdl.handle.net/2445/133604