Measurement of the branching fraction ratio $\mathcal{B}(B_c^+ \rightarrow \psi(2S)\pi^+)/\mathcal{B}(B_c^+ \rightarrow J/\psi \pi^+)$ - INSPIRE

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Measurement of the branching fraction ratio $\mathcal{B}(B_c^+ \rightarrow \psi(2S)\pi^+)/\mathcal{B}(B_c^+ \rightarrow J/\psi \pi^+)$

LHCb

Collaboration

Jul 13, 2015

10 pages

Published in:

Phys.Rev.D 92 (2015) 7, 072007

Published: Oct 20, 2015

e-Print:

1507.03516 [hep-ex]

DOI:

10.1103/PhysRevD.92.072007

PDG:

{{\mathit B}_{{{c}}}^{+}}

\rightarrow

{{\mathit \psi}{(2S)}}{{\mathit \pi}^{+}}

Report number:

CERN-PH-EP-2015-167,
LHCB-PAPER-2015-024

Experiments:

CERN-LHC-LHCb

View in:

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Abstract: (APS)

Using pp collision data collected by LHCb at center-of-mass energies s=7 TeV and 8 TeV, corresponding to an integrated luminosity of 3 fb-1, the ratio of the branching fraction of the Bc+→ψ(2S)π+ decay relative to that of the Bc+→J/ψπ+ decay is measured to be 0.268±0.032(stat)±0.007(syst)±0.006(BF). The first uncertainty is statistical, the second is systematic, and the third is due to the uncertainties on the branching fractions of the J/ψ→μ+μ- and ψ(2S)→μ+μ- decays. This measurement is consistent with the previous LHCb result, and the statistical uncertainty is halved.

Note:

17 pages including author list, 2 figures

13.25.Hw
14.40.Nd
12.38.Qk
p p: scattering
p p: colliding beams
B/c+: hadronic decay
B/c: branching ratio
branching ratio: ratio
psi(3685): leptonic decay
J/psi(3100): leptonic decay

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Figures(8)

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