S. Ahmed

activity

19992024

most citedSearches for Lepton Flavor Violation in the Decays tau -> e gamma and tau -> mu gamma

635 citations · 7.9k across the 250 of their papers we have counts for

collaborators

Showing 2017Show all

21 papers · 1 filter

hep-ex2017★ 12 cited

Observation of $e^{+} e^{-} \to ϕ χ_{c 1}$ and $ϕ χ_{c 2}$ at $s$ =4.600 GeV

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

Using a data sample collected with the BESIII detector operating at the BEPCII storage ring at a center-of-mass energy of $s = 4.600$ GeV, we search for the production of $e^{…

hep-ex2017★ 46 cited

Precision Study of $η^{'} \to γ π^{+} π^{-}$ Decay Dynamics

BESIII Collaboration, M. Ablikim, M. N. Achasov +431

Using a low background data sample of $9.7 \times 1 0^{5}$ $J ψ \to γ η^{'}$ , $η^{'} \to γ π^{+} π^{-}$ events, which are 2 orders of magnitude larger than those from the pr…

hep-ex2017★ 94 cited

Precision measurement of the $e^{+} e^{-} \to Λ_{c}^{+} Λ ˉ_{c}^{-}$ cross section near threshold

M. Ablikim, M. N. Achasov, S. Ahmed +445

The Born cross section of the $e^{+} e^{-} \to Λ_{c}^{+} Λ ˉ_{c}^{-}$ process is measured with unprecedented precision using data collected with the BESIII detector at $\s…

hep-ex2017★ 10 cited

Improved measurements of two-photon widths of the $χ_{c J}$ states and helicity analysis for $χ_{c 2} \to γ γ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +435

Based on $448.1 \times 1 0^{6}$ $ψ (3686)$ events collected with the BESIII detector, the decays $ψ (3686) \to γ χ_{c J}, χ_{c J} \to γ γ (J = 0, 1, 2)$ are studied. The decay branching fractio…

hep-ex2017★ 17 cited

Study of $J / ψ$ and $ψ (3686)$ decays to $π^{+} π^{-} η^{'}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +440

Using the data samples of $1.31 \times 1 0^{9}$ $J / ψ$ events and $4.48 \times 1 0^{8}$ $ψ (3686)$ events collected with the BESIII detector, partial wave analyses on the decays $J / ψ$ and $ψ…

hep-ex2017★ 5 cited

Observation of $e^{+} e^{-} \to η Y (2175)$ at center-of-mass energies above 3.7 $\sim$ GeV

M. Ablikim, M. N. Achasov, S. Ahmed +426

The state $Y (2175)$ is observed in the process $e^{+} e^{-} \to η Y (2175)$ at center-of-mass energies between 3.7 and 4.6 $\sim$ GeV with a statistical significance larger than $10 σ$ usin…

Observation of e+e−→ϕχc1​ and ϕχc2​ at s​=4.600 GeV

Precision Study of η′→γπ+π− Decay Dynamics

Precision measurement of the e+e− → Λc+​Λˉc−​ cross section near threshold

Improved measurements of two-photon widths of the χcJ​ states and helicity analysis for χc2​→γγ

Study of J/ψ and ψ(3686) decays to π+π−η′