Z. Guo

works on

BESIII 1 BESIII experiment 1 branching fraction measurement 1 charm meson 1 charmonium decays 1 form factors 1 interference effects 1 lepton universality 1 semileptonic decays 1 ηc decay 1

From the 2 of 28 linked papers with an AI index.

collaborators

28 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

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

Observation of $I^\cdot_{c} \to p p ˉ I^\cdot$ via $I ¨ (3686) \to I^^{3} p p ˉ I^\cdot$

BESIII Collaboration, M. Ablikim, M. N. Achasov +766

The study reports the first observation of the decay η_c → p p̄ η using a large ψ(3686) data set collected with the BESIII detector, and determines its branching fraction while acc…

hep-ex2026

Observation and branching fraction measurements of $J / I ¨ \to p p ˉ K_{S}^{0} K_{S}^{0}$ and $I ¨ (3686) \to p p ˉ K_{S}^{0} K_{S}^{0}$

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

Using $(10.087 \pm 0.044) \times 1 0^{9}$ $J / I ¨ $ events and $(2.712 \pm 0.014) \times 1 0^{9}$ $I ¨ (3686)$ events collected by the BESIII detector operating at the BEPCII collider, we report the…

hep-ex2026

Measurement of Born cross sections for $e^{+} e^{-} \to p p ˉ$ at $s = 3.510 - 4.946$ GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +758

We report a measurement of the Born cross section and the effective form factor for the $e^{+} e^{-} \to p p ˉ$ reaction at 47 center-of-mass energies between 3.510 and 4.946 GeV. The…

hep-ex2026

Observation of $I ¨ (3770) \to p p ˉ$ and Measurement of Electromagnetic Form Factors of Proton at $s = 3.510 - 4.946$ GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +758

We search for possible charmonium(-like) states decaying into the $p p ˉ$ final state by studying the Born cross sections of the $e^{+} e^{-} \to p p ˉ$ reaction, and we determine…

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

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

Observation of I^⋅c​→ppˉ​I^⋅ via I¨(3686)→I^3ppˉ​I^⋅

Observation and branching fraction measurements of J/I¨→ppˉ​KS0​KS0​ and I¨(3686)→ppˉ​KS0​KS0​

Measurement of Born cross sections for e+e−→ppˉ​ at s​=3.510−4.946 GeV

Observation of I¨(3770)→ppˉ​ and Measurement of Electromagnetic Form Factors of Proton at s​=3.510−4.946 GeV

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

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

Observation of $I^\cdot_{c} \to p p ˉ I^\cdot$ via $I ¨ (3686) \to I^^{3} p p ˉ I^\cdot$

Observation and branching fraction measurements of $J / I ¨ \to p p ˉ K_{S}^{0} K_{S}^{0}$ and $I ¨ (3686) \to p p ˉ K_{S}^{0} K_{S}^{0}$

Measurement of Born cross sections for $e^{+} e^{-} \to p p ˉ$ at $s = 3.510 - 4.946$ GeV

Observation of $I ¨ (3770) \to p p ˉ$ and Measurement of Electromagnetic Form Factors of Proton at $s = 3.510 - 4.946$ GeV