First evidence of chi(c) production in B meson decays

Albrecht, H.; Ehrlichmann, H.; Hamacher, T.; Kruger, A.; Nau, A.; Nippe, A.; Reidenbach, M.; Schafer, M.; Schroder, H.; Schulz, H.D.

doi:10.1016/0370-2693(92)90981-9

First evidence of chi(c) production in B meson decays

ARGUS

Collaboration

Jul, 1991

6 pages

Published in:

Phys.Lett.B 277 (1992) 209-214

Published: 1992

DOI:

10.1016/0370-2693(92)90981-9

PDG:

{{\mathit B}^{+}}

\rightarrow

{{\mathit \chi}_{{{c1}}}{(1P)}}{{\mathit K}^{+}}

Report number:

DESY-91-077

Experiments:

DESY-DORIS-ARGUS

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Abstract: (Elsevier)

Using the ARGUS detector at the e + e − storage ring DORIS II at DESY, we have obtained the first evidence for B meson decays into χ c mesons. The inclusive branching ratio for the decay B → χ c X was measured to the (1.05±0.35±0.25)% assuming no χ c2 production. In addition, four candidates for the exclusive decay B ± → χ c1 K ± have been observed, corresponding to a branching ratio of (0.19 ± 0.13 ± 0.06)%.

electron positron: colliding beams
colliding beams: electron positron
electron positron: annihilation
annihilation: electron positron
Upsilon(10570): electroproduction
electroproduction: Upsilon(10570)
B: pair production
pair production: B
B: decay modes
decay modes: B

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