Search for the decay $D_s^+\to a_0(980)^0e^+\nu_e$ - INSPIRE

DataBETA

Search for the decay $D_s^+\to a_0(980)^0e^+\nu_e$

BESIII

Collaboration

Mar 22, 2021

10 pages

Published in:

Phys.Rev.D 103 (2021) 9, 092004

Published: May 20, 2021

e-Print:

2103.11855 [hep-ex]

DOI:

10.1103/PhysRevD.103.092004

PDG:

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

\rightarrow

{{\mathit a}_{{{0}}}{(980)}^{0}}{{\mathit e}^{+}}{{\mathit \nu}_{{{e}}}}

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

\rightarrow

{{\mathit \pi}^{0}}{{\mathit \eta}}

Experiments:

BEPC-BES-III

View in:

ADS Abstract Service

reference search15 citations

Citations per year

Abstract: (APS)

Using 6.32 fb-1 of electron-positron collision data recorded by the BESIII detector at center-of-mass energies between 4.178 and 4.226 GeV, we present the first search for the decay Ds+→a0(980)0e+νe, a0(980)0→π0η, which could proceed via a0(980)-f0(980) mixing. No significant signal is observed. An upper limit of 1.2×10-4 at the 90% confidence level is set on the product of the branching fractions of Ds+→a0(980)0e+νe and a0(980)0→π0η decays.

Note:

9 pages, 4 figures

Particle Physics Experiments
electron positron: annihilation
electron positron: colliding beams
D/s+: semileptonic decay
a0(980): hadronic decay
D/s+: branching ratio
a0(980): branching ratio
branching ratio: upper limit
mixing: (a0(980) f0(980))
BES

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Figures(5)

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