S. P. Yu

Search for hadronic transition $I ¨ _{c J} \to I^\cdot_{c} I ¨ ^{+} I ¨ ^{-}$ and observation of $I ¨ _{c J} \to K K ˉ I ¨ I ¨ I ¨ $

The BESIII Collaboration, M. Ablikim, M. N. Achasov +339

Hadronic transitions of $I ¨ _{c J} \to I^\cdot_{c} I ¨ ^{+} I ¨ ^{-}$ (J=0, 1, 2) are searched for using a sample of $1.06 \times 1 0^{8}$ $I ¨ (3686)$ events collected with the BESIII detector at t…

Two-photon widths of the $I ¨ _{c 0, 2}$ states and helicity analysis for $Ï_{c2}\arÎ³Î³$}

BESIII Collaboration, M. Ablikim, M. N. Achasov +354

Based on a data sample of 106 M $I ¨ ^{'}$ events collected with the BESIII detector, the decays $Ï^{\prime}\arÎ³Ï_{c0, 2}$,$Ï_{c0, 2}\arÎ³Î³$ are studied to determine the tw…

Study of $J / I ¨ \to p p ˉ$ and $J / I ¨ \to n n ˉ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +354

The decays $J / I ¨ \to p p ˉ$ and $J / I ¨ \to n n ˉ$ have been investigated with a sample of 225.2 million $J / I ¨ $ events collected with the BESIII detector at the BEPCII $e^{+} e^{-}$ c…

Precision Measurements of $B [I ¨ (3686) \to I ¨ ^{+} I ¨ ^{-} J / I ¨ ]$ and $B [J / I ¨ \to l^{+} l^{-}]$

BESIII Collaboration, M. Ablikim, M. N. Achasov +356

Based on $(106.41 \pm 0.86) \times 1 0^{6}$ $I ¨ (3686)$ events collected with the BESIII detector at the BEPCII collider, the branching fractions of $I ¨ (3686) \to I ¨ ^{+} I ¨ ^{-} J / I ¨ $ , $J/Ï…

Search for $I^\cdot$ and $I^\cdot^{'}$ Invisible Decays in $J / I ¨ \to I ¨ I^\cdot$ and $I ¨ I^\cdot^{'}$

M. Ablikim, M. N. Achasov, O. Albayrak +340

Using a sample of $(225.3 \pm 2.8) \times 1 0^{6}$ $J / I ¨ $ decays collected with the BESIII detector at BEPCII, searches for invisible decays of $I^\cdot$ and $I^\cdot^{'}$ in $J / I ¨ \to I ¨ I^\cdot$ a…

Study of $e^{+} e^{-} \to p p ˉ$ in the vicinity of $I ¨ (3770)$

BESIII Collaboration, M. Ablikim, M. N. Achasov +376

Using 2917 $pb^{- 1}$ of data accumulated at 3.773~ $GeV$ , 44.5~ $pb^{- 1}$ of data accumulated at 3.65~ $GeV$ and data accumulated during a $I ¨ (3770)$ line-shape sc…

Search for $I^\cdot$ and $I^\cdot^{'} \to I ¨ ^{+} e^{-} I^ˉ ½_{e} + c . c .$ decays in $\jpsi \to ÏÎ·$ and $I ¨ I^\cdot^{'}$

M. Ablikim, M. N. Achasov, O. Albayrak +362

Using a sample of 225.3 million $\jpsi$ events collected with the BESIII detector at the BEPCII $e^{+} e^{-}$ collider in 2009, searches for the decays of $I^\cdot$ and $Î·^\prime\toÏ^+ e^-…

Amplitude Analysis of the $D^{+} \to K_{S}^{0} I ¨ ^{+} I ¨ ^{0}$ Dalitz Plot

BESIII Collaboration, M. Ablikim, M. N. Achasov +375

We perform an analysis of the $D^{+} \to K_{S}^{0} I ¨ ^{+} I ¨ ^{0}$ Dalitz plot using a data set of 2.92 fb $^{- 1}$ of $e^{+} e^{-}$ collisions at the $I ¨ (3770)$ mass accumulated by the BESIII Exper…

Study of $J / I ¨ \to I ¨ p p ˉ$ at BESIII

The BESIII Collaboration, M. Ablikim, M. N. Achasov +363

The decay $J / I ¨ \to I ¨ p p ˉ$ has been studied, using $225.3 \times 1 0^{6}$ $J / I ¨ $ events accumulated at BESIII. No significant enhancement near the $p p ˉ$ invariant-m…

First observation of the isospin violating decay $J / I ¨ \to I^ I^ˉ £^{0} + c . c .$

M. Ablikim, M. N. Achasov, D. J. Ambrose +353

Using a sample of $(225.2 \pm 2.8) \times 1 0^{6}$ $J / I ¨ $ events collected with the BESIII detector, we present results of a study of $J / I ¨ \to I^^{3} I^ I^ˉ $ and report the first o…

Measurement of the $D \to K^{-} I ¨ ^{+}$ strong phase difference in $I ¨ (3770) \to D^{0} D^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +381

We study $D^{0} D^{0}$ pairs produced in $e^{+} e^{-}$ collisions at $s = 3.773$ GeV using a data sample of 2.92 fb $^{- 1}$ collected with the BESIII detector. We measure th…

Observation of $J / I ¨ \to p p ˉ a_{0} (980)$ at BESIII

M. Ablikim, M. N. Achasov, X. C. Ai +389

Using $2.25 \times 1 0^{8}$ $J / I ¨ $ events collected with the BESIII detector at the BEPCII storage rings, we observe for the first time the process $J/Ï\rightarrow p\bar{p}a_{0}(980)…

Precision Measurement of the Mass of the $I ¨ $ Lepton

M. Ablikim, M. N. Achasov, X. C. Ai +374

An energy scan near the $I ¨ $ pair production threshold has been performed using the BESIII detector. About $24$ pb $^{- 1}$ of data, distributed over four scan points, was collected.…

Observation of $I^\cdot_{c}$ decay into $I^£^{+} I^ˉ £^{-}$ and $I^^{-} I^ˉ ^{+}$ final states

The BESIII Collaboration, M. Ablikim, M. N. Achasov +349

Using a data sample of $2.25 \times 1 0^{8}$ $J / I ¨ $ events collected with the BESIII detector, we present the first observation of the decays of $I^\cdot_{c}$ mesons to $I^£^{+} I^ˉ £^{-}$ …

Observation of a charged charmoniumlike structure Z_c(4020) and search for the Z_c(3900) in e+e- to pi+pi-h_c

BESIII Collaboration, M. Ablikim, M. N. Achasov +361

We study e+e- --> pi+pi-h_c at center-of-mass energies from 3.90 GeV to 4.42 GeV using data samples collected with the BESIII detector operating at the Beijing Electron Positron Co…

Measurement of $I ¨ _{c J}$ decaying into $p n ˉ I ¨ ^{-}$ and $p n ˉ I ¨ ^{-} I ¨ ^{0}$

M. Ablikim, M. N. Achasov, O. Albayrak +345

Using a data sample of $1.06 \times 1 0^{8}$ $\psip$ events collected with the BESIII detector in 2009, the branching fractions of $I ¨ _{c J} \to p n ˉ I ¨ ^{-}$ and $Ï_{cJ}\to p\bar{…

Measurement of $I ¨ _{c J}$ decaying into $I^\cdot^{'} K^{+} K^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +376

Using $(106.41 \pm 0.86) \times 1 0^{6}$ $I ¨ (3686)$ events collected with the BESIII detector at BEPCII, we study for the first time the decay $I ¨ _{c J} \to I^\cdot^{'} K^{+} K^{-}$ , where $Î·'\toÎ³Ï…

Precision measurement of the branching fractions of J/psi -> pi+pi-pi0 and psi' -> pi+pi-pi0

BESIII Collaboration, M. Ablikim, M. N. Achasov +345

We study the decays of the J/psi and psi' mesons to pi+pi-pi0 using data samples at both resonances collected with the BES III detector in 2009. We measure the corresponding branch…

Observation of Electromagnetic Dalitz decays J/Ï\to P e^+e^-

M. Ablikim, M. N. Achasov, X. C. Ai +377

Based on a sample of (225.3\pm2.8)\times 10^{6} J/Ïevents collected with the BESIII detector, the electromagnetic Dalitz decays of J/Ï\to P e^+e^-(P=Î·'/Î·/Ï^0) are studied. By…

Observation of a charged charmoniumlike structure in $e^{+} e^{-} \to (D^{} D ˉ^{})^{\pm} I ¨ ^{\mp}$ at $s = 4.26$ GeV

BESIII collaboration, M. Ablikim, M. N. Achasov +358

We study the process $e^{+} e^{-} \to (D^{*} D ˉ^{*})^{\pm} I ¨ ^{\mp}$ at a center-of-mass energy of 4.26GeV using a 827pb $^{- 1}$ data sample obtained with the BESIII detector at the B…

Evidence for Î·_{c}(2S) in Ï(3686) \to Î³K_{S}^{0}K^{\pm}Ï^{\mp}Ï^{+}Ï^{-}

The BESIII Collaboration, M. Ablikim, M. N. Achasov +346

We search for the M1 radiative transition Ï(3686) \to Î³Î·_{c}(2S) by reconstructing the exclusive Î·_{c}(2S) \to K_{S}^{0}K^{\pm}Ï^{\mp}Ï^{+}Ï^{-} decay using 1.06 \times 10^8…

Partial wave analysis of $I ¨ (2 S) \to p p ˉ I^\cdot$

M. Ablikim, M. N. Achasov, O. Albayrak +360

Using a sample of $1.06 \times 1 0^{8}$ $I ¨ (2 S)$ events collected with the BESIII detector at BEPCII, the decay $I ¨ (2 S) \to p p ˉ I^\cdot$ is studied. A partial wave analysis determin…

Observation of the decay $I ¨ (3686)$ $\to$ $I^ I^ˉ £^{\pm} I ¨ ^{\mp} + c . c .$

BESIII collaboration, M. Ablikim, M. N. Achasov +373

Using a sample of $1.06 \times 1 0^{8}$ $I ¨ (3686)$ events collected with the BESIII detector, we present the first observation of the decays of $I ¨ (3686)$ $\to$ $Î\barÎ£^{+}Ï…

Observation of a charged charmoniumlike structure in e+e- to pi+pi-J/psi at \sqrt{s}=4.26 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +367

We study the process e+e- to pi+pi-J/psi at a center-of-mass energy of 4.260 GeV using a 525 pb^{-1} data sample collected with the BESIII detector operating at the Beijing Electro…

Search for the radiative transitions $I ¨ (3770) \to I^^{3} I^\cdot_{c}$ and $I^^{3} I^\cdot_{c} (2 S)$

M. Ablikim, M. N. Achasov, X. C. Ai +380

By using a 2.92 fb $^{- 1}$ data sample taken at $s = 3.773$ GeV with the BESIII detector operating at the BEPCII collider, we search for the radiative transitions $Ï(3770)\t…

Search for the rare decays $J / I ¨ \to D_{s}^{-} I ¨ ^{+}$ and $J / I ¨ \to D^{0} K^{* 0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +376

A search for the rare decays of $J / I ¨ \to D_{s}^{-} I ¨ ^{+} + c . c .$ and $J / I ¨ \to D^{0} K^{* 0} + c . c .$ is performed with a data sample of 225.3 million $J / I ¨ $ event…

Study of the near-threshold $I ¨ I ¨ $ mass enhancement in doubly OZI suppressed $J / I ¨ \to I^^{3} I ¨ I ¨ $ decays

M. Ablikim, M. N. Achasov, O. Albayrak +348

A 2.25 $\times 1 0^{8}$ $\jpsi$ event sample accumulated with the BESIII detector is used to study the doubly OZI suppressed decay modes $\jpsi\toÎ³\of$, $Ï\to\ppp$, $Ï\to\kk$. A stro…

Partial wave analysis of $J / I ¨ \to I^^{3} I^\cdot I^\cdot$

M. Ablikim, M. N. Achasov, O. Albayrak +358

Based on a sample of $2.25 \times 1 0^{8}$ $J / I ¨ $ events collected with the BESIII detector at BEPCII, a full partial wave analysis on $J / I ¨ \to I^^{3} I^\cdot I^\cdot$ was performed using the relativ…

Evidence for the Direct Two-Photon Transition from $I ¨ (3686)$ to $J / I ¨ $

BESIII Collaboration, M. Ablikim, M. N. Achasov +354

The two-photon transition $I ¨ (3686) \to I^^{3} I^^{3} J / I ¨ $ is studied in a sample of 106 million $I ¨ (3686)$ decays collected by the BESIII detector. The branching fraction is measured to be $…

Search for Baryonic Decays of Ï(3770) and Ï(4040)

BESIII Collaboration, M. Ablikim, M. N. Achasov +361

By analyzing data samples of 2.9 fb^{-1} collected at \sqrt s=3.773 GeV, 482 pb^{-1} collected at \sqrt s=4.009 GeV and 67 pb^{-1} collected at \sqrt s=3.542, 3.554, 3.561, 3.600 a…

Observation of $e^{+} e^{-} \to I^\cdot J / I ¨ $ at center-of-mass energy $s q r t s = 4.009$ GeV

The BESIII Collaboration, M. Ablikim, M. N. Achasov +339

Using a 478 pb $^{- 1}$ data sample collected with the BESIII detector operating at the BEPCII storage ring at a center-of-mass energy of $s = 4.009$ GeV, the production of $e^{…

First observation of $I^\cdot (1405)$ decays into $f_{0} (980) I ¨ ^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +332

The decays $J / I ¨ \to I^^{3} I ¨ ^{+} I ¨ ^{-} I ¨ ^{0}$ and $J / I ¨ \to I^^{3} I ¨ ^{0} I ¨ ^{0} I ¨ ^{0}$ are analyzed using a sample of 225 million $\jpsi$ events collected with the BESIII detector. The d…

Measurement of $I^\cdot^{'} \to I ¨ ^{+} I ¨ ^{-} e^{+} e^{-}$ and $I^\cdot^{'} \to I ¨ ^{+} I ¨ ^{-} I^¼^{+} I^¼^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +361

Based on a sample of 225.3 million J/Ïevents accumulated with the BESIII detector at the BEPCII, the decays of Î·' to pi+pi-l+l- are studied via J/Ïto Î³Î·'. A clear Î·' signal i…

hep-ex2015

Search for the $I^\cdot_{c} (2 S) / h_{c} \to p p ˉ$ decays and measurements of the $I ¨ _{c J} \to p p ˉ$ branching fractions

BESlll Collaboration, M. Ablikim, M. N. Achasov +374

Using a sample of $1.06 \times 1 0^{8} I ¨ (3686)$ events collected with the BESIII detector at BEPCII, the decays $I^\cdot_{c} (2 S) \to p p ˉ$ and $h_{c} \to p p ˉ$ are searched for, whe…

Observation of chi_{cJ} Decays to ÎÎbarÏ^{+}Ï^{-}

BESIII Collaboration, M. Ablikim, M. N. Achasov +340

Decays of the chi_{cJ} states (J=0,\ 1,\ 2) to ÎÎbar\ pi^{+} Ï^{-}, including processes with intermediate Î£(1385), are studied through the E1 transition psi'-->Î³chi_{cJ} using…

Measurement of the branching fraction for $I ¨ (3686) \to I ¨ K^{+} K^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +381

With $1.06 \times 1 0^{8}$ $I ¨ (3686)$ events collected with the BESIII detector, the branching fraction of $I ¨ (3686) \to I ¨ K^{+} K^{-}$ is measured to be $(1.54 \pm 0.04 \pm 0.11) \times 1…

Observation of a structure at 1.84 GeV/c $^{2}$ in the $3 (I ¨ ^{+} I ¨ ^{-})$ mass spectrum in $J / I ¨ \to I^^{3} 3 (I ¨ ^{+} I ¨ ^{-})$ decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +362

With a sample of 225.3 million $J / I ¨ $ events taken with the BESIII detector, the decay $J / I ¨ \to I^^{3} 3 (I ¨ ^{+} I ¨ ^{-})$ is analyzed. A structure at 1.84 GeV/c $^{2}$ is observed in the…

Measurements of the mass and width of the eta_c using psi' -> gamma eta_c

BESIII Collaboration, M. Ablikim, M. N. Achasov +332

The mass and width of the lowest lying S-wave spin singlet charmonium state, the eta_c, are measured using a data sample of 1.06x10^8 psi' decays collected with the BESIII detector…

Observation of $e^{+} e^{-} \to I^^{3} X (3872)$ at BESIII

BESIII collaboration, M. Ablikim, M. N. Achasov +372

With data samples collected with the BESIII detector operating at the BEPCII storage ring at center-of-mass energies from 4.009 to 4.420 GeV, the process $e^{+} e^{-} \to Î³X(3872)…

Search for the Lepton Flavor Violation Process $J / I ¨ \to e I^¼$ at BESIII

BESIII Collaboration, M. Ablikim, M. N. Achasov +361

We search for the lepton-flavor-violating decay of the $J / I ¨ $ into an electron and a muon using $(225.3 \pm 2.8) \times 1 0^{6}$ $J / I ¨ $ events collected with the BESIII detector at the…

Study of e $^{+}$ e $^{-}$ $\to p p I ¨ ^{0}$ in the Vicinity of the $I ¨ (3770)$

M. Ablikim, M. N. Achasov, X. C. Ai +375

The process $e^{+} e^{-} \to p p I ¨ ^{0}$ has been studied by analyzing data collected at $s = 3.773$ GeV, at $s = 3.650$ GeV, and during a $I ¨ (3770)$ line shape…

physics.atom-ph2019

An advanced apparatus for the integration of nanophotonics and cold atoms

We combine nanophotonics and cold atom research in a new apparatus enabling the delivery of single-atom tweezer arrays in the vicinity of photonic crystal waveguides.

hep-ex2015

Study of $I ¨ (3686) \to I ¨ ^{0} h_{c}, h_{c} \to I^^{3} I^\cdot_{c}$ via $I^\cdot_{c}$ exclusive decays

The BESIII Collaboration, M. Ablikim, M. N. Achasov +346

The process $I ¨ (3686) \to I ¨ ^{0} h_{c}, h_{c} \to I^^{3} I^\cdot_{c}$ has been studied with a data sample of $106 \pm 4$ million $I ¨ (3686)$ events collected with the BESIII detector at the BEPCII st…

First observation of the M1 transition $I ¨ (3686) \to I^^{3} I^\cdot_{c} (2 S)$

M. Ablikim, M. N. Achasov, D. J. Ambrose +356

Using a sample of 106 million Ï(3686) events collected with the BESIII detector at the BEPCII storage ring, we have made the first measurement of the M1 transition between the rad…

Experimental study of psi' decays to K+K- pi^0 and K+K- eta

M. Ablikim, M. N. Achasov, D. J. Ambrose +353

Using $(106 \pm 4) \times 1 0^{6}$ $\psip$ events accumulated with the BESIII detector at the BEPCII $e^{+} e^{-}$ collider, we present measurements of the branching fractions for psi' decays…

Evidence for $I^\cdot_{c} \to I^^{3} I^^{3}$ and Measurement of $J / I ¨ \to 3 I^^{3}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +340

The decay of $J / I ¨ $ to three photons is studied using $I ¨ (3686) \to I ¨ ^{+} I ¨ ^{-} J / I ¨ $ in a sample of $1.0641 \times 1 0^{8}$ $I ¨ (3686)$ events collected with the BESIII detector. Evidence of…

Measurements of Baryon Pair Decays of $I ¨ _{c J}$ Mesons

M. Ablikim, M. N. Achasov, O. Albayrak +348

Using 106 $\times 1 0^{6}$ $I ¨ ^{'}$ decays collected with the BESIII detector at the BEPCII, three decays of $I ¨ _{c J}$ ( $J = 0, 1, 2$ ) with baryon pairs ($\llb$, $\ssb$, $\SSB$) in…

Precision measurements of branching fractions for $I ¨ ^{'} \to I ¨ ^{0} J I ¨ $ and $I^\cdot J I ¨ $

M. Ablikim, M. N. Achasov, O. Albayrak +342

We present a precision study of the $\psip\toÏ^0 J/Ï$ and $I^\cdot J / I ¨ $ decay modes. The measurements are obtained using $106 \times 1 0^{6}$ $I ¨ ^{'}$ events accumulated with the BESIII detec…

Observation of $I^\cdot^{'} \to I ¨ ^{+} I ¨ ^{-} I ¨ ^{+} I ¨ ^{-}$ and $I^\cdot^{'} \to I ¨ ^{+} I ¨ ^{-} I ¨ ^{0} I ¨ ^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +376

Using a sample of $1.3 \times 1 0^{9}$ $J / I ¨ $ events collected with the BESIII detector, we report the first observation of $I^\cdot^{'} \to I ¨ ^{+} I ¨ ^{-} I ¨ ^{+} I ¨ ^{-}$ and $Î·^{\prime}\to…