The decay Bc(+) -> J/psi pi(+) pi(-) pi(+) is observed for the first time, using 0.8 fb(-1) of pp collisions at root s = 7 TeV collected by the LHCb experiment. The ratio of branching fractions B(B-c(+) -> J/psi pi(+) pi(-) pi(+))/B(B-c(+) -> J/psi pi(+)) 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.
Aaij, R., Carboni, G., Santovetti, E., Ii, (2012). First Observation of the Decay B-c(+)-> J/psi pi(+)pi(-)pi(+). PHYSICAL REVIEW LETTERS, 108(25) [10.1103/PhysRevLett.108.251802].
First Observation of the Decay B-c(+)-> J/psi pi(+)pi(-)pi(+)
CARBONI, GIOVANNI;SANTOVETTI, EMANUELE;
2012-01-01
Abstract
The decay Bc(+) -> J/psi pi(+) pi(-) pi(+) is observed for the first time, using 0.8 fb(-1) of pp collisions at root s = 7 TeV collected by the LHCb experiment. The ratio of branching fractions B(B-c(+) -> J/psi pi(+) pi(-) pi(+))/B(B-c(+) -> J/psi pi(+)) 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.File in questo prodotto:
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