W. Kühn

works on

BESIII 1 charmonium 1 pi+ pi- spectrum 1 psi(3686) decay 1 threshold enhancement 1

From the 1 of 5 linked papers with an AI index.

collaborators

5 papers

hep-ex2026

Precision Measurement of Decay Dynamics in $D^{0 (+)} \to I ¨ ^{- (0)} ℓ^{+} I^½_{ℓ}$

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 precisely measured, using 20.3 fb $^{- 1}$ of $e^{+} e^{-}$ c…

hep-ex2026

Measurement of Born Cross Section for $e^{+} e^{-} \to K_{S}^{0} I^ˉ ^{+} I^£^{-} + c.c.$ at $s = 3.51 - 4.95$ GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +759

Using $e^{+} e^{-}$ collision data collected with the BESIII detector at the BEPCII collider corresponding to a total integrated luminosity of 44~fb $^{- 1}$ , we present the first measure…

hep-ex2026

Observation of a threshold enhancement in the $I ¨ ^{+} I ¨ ^{-}$ spectrum in $I ¨ (3686) \to I ¨ ^{+} I ¨ ^{-} J / I ¨ $ decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +677

The BESIII experiment analyzed over 2.7 billion ψ(3686) decays and observed a clear resonance-like enhancement near the π⁺π⁻ mass threshold in ψ(3686)→π⁺π⁻J/ψ decays, measuring its…

hep-ex2025

Observation of the electromagnetic radiative decays of the \boldmath{ $I^ (1520)$ } and \boldmath{ $I^ (1670)$ } to \boldmath{ $I^^{3} I^£^{0}$ }

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

Using $(10087 \pm 44) \times 1 0^{6}$ $J / I ¨ $ events collected with the BESIII detector, we report the first observation of the electromagnetic radiative decays of the $I^ (1520)$ and $Î(…

hep-ex2025

Test of local realism via entangled $I^ I^ˉ $ system

BESIII Collaboration, M. Ablikim, M. N. Achasov +608

The non-locality of quantum correlations is a fundamental feature of quantum theory. The Bell inequality serves as a benchmark for distinguishing between predictions made by quantu…

Precision Measurement of Decay Dynamics in D0(+)→I¨−(0)ℓ+I^½ℓ​

Measurement of Born Cross Section for e+e−→KS0​I^ˉ+I^£−+c.c. at s​=3.51−4.95 GeV

Observation of a threshold enhancement in the I¨+I¨− spectrum in I¨(3686)→I¨+I¨−J/I¨ decays

Observation of the electromagnetic radiative decays of the \boldmath{I^(1520)} and \boldmath{I^(1670)} to \boldmath{I^3I^£0}

Test of local realism via entangled I^I^ˉ system

Precision Measurement of Decay Dynamics in $D^{0 (+)} \to I ¨ ^{- (0)} ℓ^{+} I^½_{ℓ}$

Measurement of Born Cross Section for $e^{+} e^{-} \to K_{S}^{0} I^ˉ ^{+} I^£^{-} + c.c.$ at $s = 3.51 - 4.95$ GeV

Observation of a threshold enhancement in the $I ¨ ^{+} I ¨ ^{-}$ spectrum in $I ¨ (3686) \to I ¨ ^{+} I ¨ ^{-} J / I ¨ $ decays

Observation of the electromagnetic radiative decays of the \boldmath{ $I^ (1520)$ } and \boldmath{ $I^ (1670)$ } to \boldmath{ $I^^{3} I^£^{0}$ }

Test of local realism via entangled $I^ I^ˉ $ system