K. Peters

collaborators

112 papers

hep-ex2026

Search for the charged lepton flavour violating decay $η^{'} \to e μ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +765

Based on $(8998 \pm 40) \times 1 0^{6}$ $J / ψ$ events collected in $e^{+} e^{-}$ collisions at $s = 3.097$ GeV with the BESIII detector, we present a search for the charged lepton flavou…

hep-ex2026

Precision measurements of semleptonic decays $D^{0} \to I ¨ ^{-} ℓ^{+} I^½_{ℓ}$ and $D^{+} \to I ¨ ^{0} ℓ^{+} I^½_{ℓ}$ ( $ℓ = e, I^¼$ )

BESIII Collaboration, M. Ablikim, M. N. Achasov +773

The branching fractions of $D^{0} \to I ¨ ^{-} e^{+} I^½_{e}$ , $D^{0} \to I ¨ ^{-} I^¼^{+} I^½_{I^} ¼$ , $D^{+} \to I ¨ ^{0} e^{+} I^½_{e}$ , and $D^{+} \to I ¨ ^{0} I^¼^{+} I^½_{I^} ¼$ are measured to be $(2.950\pm0.017_{\rm stat.}\pm 0.017_{\…

hep-ex2026

Measurement of the double Dalitz decay $I^\cdot \to e^{+} e^{-} e^{+} e^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +689

The BESIII experiment measured the rare decay of the eta meson into two electron-positron pairs, determining its branching fraction to be about 2.6 × 10⁻⁵.

hep-ex2026

Amplitude analysis and branching fraction measurement of the decay $D^{0} \to K_{S}^{0} I ¨ ^{0} I ¨ ^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +703

An amplitude analysis of the decay $D^{0} \to K_{S}^{0} I ¨ ^{0} I ¨ ^{0}$ is performed to determine the relative magnitudes and phases of different intermediate processes. The analysis uses $e^…

hep-ex2026

Search for an isoscalar partner of the $Z_{c} (3900)$ in $e^{+} e^{-} \to I ¨ ^{+} I ¨ ^{-} I^\cdot J / I ¨ $

BESIII Collaboration, M. Ablikim, M. N. Achasov +684

Using a data sample corresponding to an integrated luminosity of 20.3 fb $^{- 1}$ collected at center-of-mass energies from 4.18 to 4.95 GeV with the BESIII detector, we observe the…

hep-ex2026

First Observation of $D^{0 (+)} \to K ˉ I ¨ e^{+} I^½_{e}$ and Determination of the Branching Fraction of $K ˉ_{1} (1270) \to K ˉ I ¨ $

BESIII Collaboration, M. Ablikim, M. N. Achasov +685

Using 20.3~fb $^{- 1}$ of $e^{+} e^{-}$ annihilation data collected at a center-of-mass energy of 3.773~GeV with the BESIII detector, we report the first observation of the semileptonic d…

Search for the charged lepton flavour violating decay η′→eμ

Precision measurements of semleptonic decays D0→I¨−ℓ+I^½ℓ​ and D+→I¨0ℓ+I^½ℓ​ (ℓ=e,I^¼)

Measurement of the double Dalitz decay I^⋅→e+e−e+e−

Amplitude analysis and branching fraction measurement of the decay D0→KS0​I¨0I¨0

Search for an isoscalar partner of the Zc​(3900) in e+e−→I¨+I¨−I^⋅J/I¨

First Observation of D0(+)→KˉI¨e+I^½e​ and Determination of the Branching Fraction of Kˉ1​(1270)→KˉI¨

Search for the charged lepton flavour violating decay $η^{'} \to e μ$

Precision measurements of semleptonic decays $D^{0} \to I ¨ ^{-} ℓ^{+} I^½_{ℓ}$ and $D^{+} \to I ¨ ^{0} ℓ^{+} I^½_{ℓ}$ ( $ℓ = e, I^¼$ )

Measurement of the double Dalitz decay $I^\cdot \to e^{+} e^{-} e^{+} e^{-}$

Amplitude analysis and branching fraction measurement of the decay $D^{0} \to K_{S}^{0} I ¨ ^{0} I ¨ ^{0}$

Search for an isoscalar partner of the $Z_{c} (3900)$ in $e^{+} e^{-} \to I ¨ ^{+} I ¨ ^{-} I^\cdot J / I ¨ $

First Observation of $D^{0 (+)} \to K ˉ I ¨ e^{+} I^½_{e}$ and Determination of the Branching Fraction of $K ˉ_{1} (1270) \to K ˉ I ¨ $