T. Sun

collaborators

6 papers

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…

hep-ex2026

Observation of an Altered $a_{0} (980)$ Line shape in $D^{+} \to I ¨ ^{+} I^\cdot I^\cdot$

BESIII Collaboration, M. Ablikim, M. N. Achasov +693

Using $20.3 fb^{- 1}$ of $e^{+} e^{-}$ collision data collected with the BESIII detector at $s = 3.773 GeV$ , we perform the first amplitude analysis of the decay $D^+\to…

hep-ex2026

Search for the charmonium weak decay $I ¨ (2 S) \to D_{s}^{-} I ¨ ^{+} + c . c .$ and $I ¨ (2 S) \to D_{s}^{-} I ¨ ^{+} + c . c .$

BESIII Collaboration, M. Ablikim, M. N. Achasov +720

We search for the weak decays $I ¨ (2 S) \to D_{s}^{-} I ¨ ^{+} + c . c .$ and $I ¨ (2 S) \to D_{s}^{-} I ¨ ^{+} + c . c .$ for the first time. The search is based on $(2712.4 \pm 14.3) \times 1 0^{6}$ events containin…

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

First Amplitude Analysis of $D^{0} \to K^{-} I ¨ ^{0} e^{+} I^½_{e}$ and Observation of $D^{0} \to K_{2}^{*} (1430)^{-} e^{+} I^½_{e}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +687

We present the first amplitude analysis of the semileptonic decay $D^{0} \to K^{-} I ¨ ^{0} e^{+} I^½_{e}$ by analyzing $e^{+} e^{-}$ annihilation data corresponding to an integrated luminosity of…

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

Observation of an Altered a0​(980) Line shape in D+→I¨+I^⋅I^⋅

Search for the charmonium weak decay I¨(2S)→Ds−​I¨++c.c. and I¨(2S)→Ds−​I¨++c.c.

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

First Amplitude Analysis of D0→K−I¨0e+I^½e​ and Observation of D0→K2∗​(1430)−e+I^½e​

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

Observation of an Altered $a_{0} (980)$ Line shape in $D^{+} \to I ¨ ^{+} I^\cdot I^\cdot$

Search for the charmonium weak decay $I ¨ (2 S) \to D_{s}^{-} I ¨ ^{+} + c . c .$ and $I ¨ (2 S) \to D_{s}^{-} I ¨ ^{+} + c . c .$

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

First Amplitude Analysis of $D^{0} \to K^{-} I ¨ ^{0} e^{+} I^½_{e}$ and Observation of $D^{0} \to K_{2}^{*} (1430)^{-} e^{+} I^½_{e}$