C. Guan

collaborators

7 papers

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

First Measurement of the Relative Phase between Proton Psionic Form Factors

BESIII Collaboration, M. Ablikim, M. N. Achasov +754

The relative phase between the time-like form factors of the proton is a crucial observable for a complete understanding of its internal structure, yet it has remained unmeasured d…

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

First Observation of \boldmath{ $D^{+} \to a_{0} (980) I ¨ $ and $D^{+} \to a_{0} (980)^{+} f_{0} (500)$ } in \boldmath{ $D^{+} \to I ¨ ^{+} I ¨ ^{+} I ¨ ^{-} I^\cdot$ and $D^{+} \to I ¨ ^{+} I ¨ ^{0} I ¨ ^{0} I^\cdot$ } Decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +756

We perform the first amplitude analysis of the singly Cabibbo-suppressed decays $D^{+} \to I ¨ ^{+} I ¨ ^{+ (0)} I ¨ ^{- (0)} I^\cdot$ , using $e^{+} e^{-}$ collision data collected with the BESIII detec…

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

First Measurement of the Relative Phase between Proton Psionic Form Factors

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^⋅

First Observation of \boldmath{D+→a0​(980)I¨ and D+→a0​(980)+f0​(500)} in \boldmath{D+→I¨+I¨+I¨−I^⋅ and D+→I¨+I¨0I¨0I^⋅} Decays

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

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 $D^{+} \to I ¨ ^{+} I^\cdot I^\cdot$

First Observation of \boldmath{ $D^{+} \to a_{0} (980) I ¨ $ and $D^{+} \to a_{0} (980)^{+} f_{0} (500)$ } in \boldmath{ $D^{+} \to I ¨ ^{+} I ¨ ^{+} I ¨ ^{-} I^\cdot$ and $D^{+} \to I ¨ ^{+} I ¨ ^{0} I ¨ ^{0} I^\cdot$ } Decays