S. Fegan

activity

20142019

most citedDark Sectors 2016 Workshop: Community Report

135 citations · 436 across the 14 of their papers we have counts for

collaborators

14 papers

hep-ex2019★ 4 cited

Search for rare decay $J / ψ \to ϕ e^{+} e^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +462

Using a data sample of $448.1 \times 1 0^{6}$ $ψ (3686)$ events collected at $s =$ 3.686 GeV with the BESIII detector at the BEPCII, we search for the rare decay $J / ψ \to ϕ e^{+} e^{-}$ …

hep-ex2019★ 13 cited

Search for heavy Majorana neutrino in lepton number violating decays of D-> K pi e+ e+

BESIII Collaboration, M. Ablikim, M. N. Achasov +456

Using the data sample of an integrated luminosity of 2.93 fb $^{- 1}$ taken at the center-of-mass energy of 3.773 GeV, we search for the Majorana neutrino in the lepton number violat…

hep-ex2019★ 35 cited

Measurement of the Dynamics of the Decays $D_{s}^{+} \to η^{(')} e^{+} ν_{e}$

M. Ablikim, M. N. Achasov, S. Ahmed +458

Using $e^{+} e^{-}$ annihilation data corresponding to an integrated luminosity of 3.19\,fb $^{- 1}$ collected at a center-of-mass energy of 4.178~GeV with the BESIII detector, we measure…

hep-ex2019★ 22 cited

Observation and study of the decay $J / ψ \to ϕ η η^{'}$

M. Ablikim, M. N. Achasov, S. Ahmed +455

We report the observation and study of the decay $J / ψ \to ϕ η η^{'}$ using $1.3 \times 1 0^{9}$ $J / ψ$ events collected with the BESIII detector. Its branching fraction, including all…

hep-ex2018★ 13 cited

Observation of $ψ (3686) \to p p ˉ η^{'}$ and improved measurement of $J / ψ \to p p ˉ η^{'}$

M. Ablikim, M. N. Achasov, S. Ahmed +460

We observe the process $ψ (3686) \to p p ˉ η^{'}$ for the first time, with a statistical significance higher than 10 $σ$ , and measure the branching fraction of $J/ψ\to p \ba…

hep-ex2018★ 9 cited

Measurements of the absolute branching fractions and $C P$ asymmetries for $D^{+} \to K_{S, L}^{0} K^{+} (π^{0})$

M. Ablikim, M. N. Achasov, S. Ahmed +427

Using $e^{+} e^{-}$ collision data corresponding to an integrated luminosity of 2.93 fb $^{- 1}$ taken at a center-of-mass energy of 3.773 GeV with the BESIII detector, we determine the a…

Search for rare decay J/ψ→ϕe+e−

Search for heavy Majorana neutrino in lepton number violating decays of D-> K pi e+ e+

Measurement of the Dynamics of the Decays Ds+​→η(′)e+νe​

Observation and study of the decay J/ψ→ϕηη′

Observation of ψ(3686)→ppˉ​η′ and improved measurement of J/ψ→ppˉ​η′

Measurements of the absolute branching fractions and CP asymmetries for D+→KS,L0​K+(π0)

Search for rare decay $J / ψ \to ϕ e^{+} e^{-}$

Measurement of the Dynamics of the Decays $D_{s}^{+} \to η^{(')} e^{+} ν_{e}$

Observation and study of the decay $J / ψ \to ϕ η η^{'}$

Observation of $ψ (3686) \to p p ˉ η^{'}$ and improved measurement of $J / ψ \to p p ˉ η^{'}$

Measurements of the absolute branching fractions and $C P$ asymmetries for $D^{+} \to K_{S, L}^{0} K^{+} (π^{0})$