Search for hadronic transition $χ_{cJ} → η_cπ^+π^-$ and observation of $χ_{cJ} → K\overline{K}πππ$ - INSPIRE

DataBETA

Search for hadronic transition $χ_{cJ} → η_cπ^+π^-$ and observation of $χ_{cJ} → K\overline{K}πππ$

BESIII

Collaboration

Aug, 2012

13 pages

Published in:

Phys.Rev.D 87 (2013) 1, 012002

Published: Jan 4, 2013

e-Print:

1208.4805 [hep-ex]

DOI:

10.1103/PhysRevD.87.012002

PDG:

{{\mathit \chi}_{{{c1}}}{(1P)}}

\rightarrow

{{\mathit K}^{+}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \pi}^{0}}

Experiments:

BEPC-BES-III

View in:

reference search204 citations

Citations per year

Abstract: (APS)

Hadronic transitions of χcJ→ηcπ+π- (J=0, 1, 2) are searched for using a sample of 1.06×108 ψ(3686) events collected with the BESIII detector at the BEPCII storage ring. The ηc is reconstructed with KS0K±π∓ and K+K-π0 final states. No signals are observed in any of the three χcJ states in either ηc decay mode. At the 90% confidence level, the upper limits are determined to be B(χc0→ηcπ+π-)<0.07%, B(χc1→ηcπ+π-)<0.32%, and B(χc2→ηcπ+π-)<0.54%. The upper limit of B(χc1→ηcπ+π-) is lower than the existing theoretical prediction by almost an order of magnitude. The branching fractions of χcJ→KS0K±π∓π+π-, K+K-π+π-π0, ωK+K-, and ϕπ+π-π0 J=0, 1, 2) are measured for the first time.

13.20.Gd
13.25.Gv
14.40.Pq
chi mesons: hadronic decay
branching ratio: upper limit
chi/c0(3415)
chi/c1(3510)
chi/c2(3555)
BES
Beijing Stor

References(24)

Figures(28)

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