Search for the decay $D_s^+\rightarrow \gamma e^+\nu_e$ - INSPIRE

DataBETA

Search for the decay $D_s^+\rightarrow \gamma e^+\nu_e$

BESIII

Collaboration

Feb 8, 2019

10 pages

Published in:

Phys.Rev.D 99 (2019) 7, 072002

Published: Apr 10, 2019

e-Print:

1902.03351 [hep-ex]

DOI:

10.1103/PhysRevD.99.072002

PDG:

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

\rightarrow

{{\mathit \gamma}}{{\mathit e}^{+}}{{\mathit \nu}_{{{e}}}}

Experiments:

BEPC-BES-III

View in:

ADS Abstract Service

reference search19 citations

Citations per year

Abstract: (APS)

A search for the rare radiative leptonic decay Ds+→γe+νe is performed for the first time using electron-positron collision data corresponding to an integrated luminosity of 3.19 fb-1, collected with the BESIII detector at a center-of-mass energy of 4.178 GeV. No evidence for the Ds+→γe+νe decay is seen, and an upper limit of B(Ds+→γe+νe)<1.3×10-4 is set on the partial branching fraction at a 90% confidence level for radiative photon energies Eγ*>0.01 GeV.

Note:

9 pages, 7 figures

Particle Physics Experiments
electron positron: annihilation
electron positron: colliding beams
D/s+: radiative decay
photon: energy
D/s+: branching ratio: upper limit
D/s+: leptonic decay
D/s+: rare decay
BES
Beijing Stor

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Figures(10)

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