Observation of $\chi_{cJ}\to4K_{S}^{0}$ - INSPIRE

DataBETA

Observation of $\chi_{cJ}\to4K_{S}^{0}$

BESIII

Collaboration

Jan 23, 2019

8 pages

Published in:

Phys.Rev.D 99 (2019) 5, 052008

Published: Mar 23, 2019

e-Print:

1901.08207 [hep-ex]

DOI:

10.1103/PhysRevD.99.052008

PDG:

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

\rightarrow

{{\mathit K}_S^0}

{{\mathit K}_S^0}

{{\mathit K}_S^0}

{{\mathit K}_S^0}

Experiments:

BEPC-BES-III

View in:

ADS Abstract Service

reference search3 citations

Citations per year

Abstract: (APS)

By analyzing (448.1±2.9)×106 ψ(3686) events collected with the BESIII detector operating at the BEPCII collider, the decays of χcJ→4KS0 (J=0, 1, 2) are observed for the first time with statistical significances of 26.5σ, 5.9σ and 11.4σ, respectively. The product branching fractions of ψ(3686)→γχcJ, χcJ→4KS0 are presented, and the branching fractions of χcJ→4KS0 decays are determined to be Bχc0→4KS0=(5.76±0.34±0.38)×10-4, Bχc1→4KS0=(0.35±0.09±0.03)×10-4 and Bχc2→4KS0=(1.14±0.15±0.08)×10-4, where the first uncertainties are statistical and the second are systematic, respectively.

13.25.Gv
14.40.Pq
13.20.Gd
Particle Physics Experiments
electron positron: annihilation
electron positron: colliding beams
psi(3685): electroproduction
psi(3685): radiative decay
chi/c0(3415): branching ratio: measured
chi/c1(3510): branching ratio: measured

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