Amplitude analysis and branching-fraction measurement of $D^{+}_{s}\rightarrow K^{0}_{S}K^{-}\pi^{+}\pi^{+}$ - INSPIRE

DataBETA

Amplitude analysis and branching-fraction measurement of $D^{+}_{s}\rightarrow K^{0}_{S}K^{-}\pi^{+}\pi^{+}$

BESIII

Collaboration

Feb 7, 2021

14 pages

Published in:

Phys.Rev.D 103 (2021) 9, 092006

Published: May 25, 2021

e-Print:

2102.03808 [hep-ex]

DOI:

10.1103/PhysRevD.103.092006

PDG:

{{\mathit D}_{{{s}}}^{+}}

\rightarrow

{{\mathit \eta}{(1475)}}{{\mathit \pi}^{+}}

{{\mathit \eta}}

\rightarrow

{{\mathit a}_{{{0}}}{(980)}^{-}}{{\mathit \pi}^{+}}

{{\mathit a}_{{{0}}}^{-}}

\rightarrow

{{\mathit K}_S^0}

{{\mathit K}^{-}}

Experiments:

BEPC-BES-III

View in:

ADS Abstract Service

reference search13 citations

Citations per year

Abstract: (APS)

Using 6.32 fb-1 of e+e- collision data collected by the BESIII detector at the center-of-mass energies between 4.178 and 4.226 GeV, an amplitude analysis of the Ds+→KS0K-π+π+ decays is performed for the first time to determine the intermediate-resonant contributions. The dominant component is the Ds+→K*(892)+K¯*(892)0 decay with a fraction of (40.6±2.9stat±4.9sys)%. Our results of the amplitude analysis are used to obtain a more precise measurement of the branching fraction of the Ds+→KS0K-π+π+ decay, which is determined to be (1.46±0.05stat±0.05sys)%.

Note:

13pages, 4 figures

Particle Physics Experiments
electron positron: annihilation
electron positron: colliding beams
amplitude analysis
intermediate state
K*(892)0
D/s+: hadronic decay
D/s+: branching ratio: measured
efficiency
BES

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