S. Fang

works on

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

From the 1 of 3 linked papers with an AI index.

collaborators

3 papers

hep-ex2026

Cross Section Measurements of $n ˉ p \to K^{+} K^{-} I ¨ ^{+} (I ¨ ^{0})$ via Antineutrons Produced by $J / I ¨ \to p I ¨ ^{-} n ˉ$ Decays

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

Based on a novel method for producing antineutrons via $J / I ¨ $ decays, we report a study of $n ˉ p$ inelastic scattering into final states containing kaons. The analysis uses $(1…

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(…

Cross Section Measurements of nˉp→K+K−I¨+(I¨0) via Antineutrons Produced by J/I¨→pI¨−nˉ Decays

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}

Cross Section Measurements of $n ˉ p \to K^{+} K^{-} I ¨ ^{+} (I ¨ ^{0})$ via Antineutrons Produced by $J / I ¨ \to p I ¨ ^{-} n ˉ$ Decays

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{ $I^^{3} I^£^{0}$ }