L. Ge

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

Based on the $(2712.4 \pm 14.4) \times 1 0^{6}$ $I ¨ (3686)$ events collected with the BESIII detector, we present a high-precision study of the $I ¨ ^{+} I ¨ ^{-}$ mass spectrum in $Ï(3686)\rig…

Measurement of branching fractions of $I^_{c}^{+}$ decays to $I^£^{+} I^\cdot$ and $I^£^{+} I^\cdot^{'}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +650

By analyzing $e^{+} e^{-}$ collision data taken at center-of-mass energies $s$ between 4.600 and 4.699 GeV with the BESIII detector at the BEPCII collider, corresponding to an in…

First Measurement of the $D_{s}^{+} \to K^{} (892)^{0} I^¼^{+} I^½_{I^} ¼$ Decay, Study of Dynamics and Test of Lepton Universality with $D_{s}^{+} \to K^{} (892)^{0} ℓ^{+} I^½_{ℓ}$ Decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +715

We report the first measurement of the semileptonic decay $D_{s}^{+} \to K^{*} (892)^{0} I^¼^{+} I^½_{I^} ¼$ and an improved measurement of the decay $D_{s}^{+} \to K^{*} (892)^{0} e^{+} I^½_{e}$ …

Search for the isospin-violating decays $I ¨ _{cJ} \to I^ I^ˉ £^{0} + c . c .$ and $I^\cdot_{c} \to I^ I^ˉ £^{0} + c . c .$

BESIII Collaboration, M. Ablikim, M. N. Achasov +701

Using a sample of $(2712.4 \pm 14.3) \times 1 0^{6}$ ~ $I ¨ (3686)$ events collected with the BESIII detector, we perform a search for the isospin-violating decays $Ï_{cJ}\toÎ\barÎ£^{0}+c…

Precision Measurement of $D_{s}^{*+}$ - $D_{s}^{+}$ Mass Difference

BESIII Collaboration, M. Ablikim, M. N. Achasov +684

We measure the mass difference between $D_{s}^{*+}$ and $D_{s}^{+}$ , $I^ m_{s}$ , using the decay chain $D_{s}^{*+} \to D_{s}^{+} (\to K^{+} K^{-} I ¨ ^{+}) I ¨ ^{0}$ , utilizing $e^{+} e^{-}$ ann…

Strong and weak $C P$ tests in sequential decays of polarized $I^£^{0}$ hyperons

BESIII Collaboration, M. Ablikim, M. N. Achasov +650

The $J / I ¨ , I ¨ (3686) \to I^£^{0} I^ˉ £^{0}$ processes and subsequent decays are studied using the world's largest $J / I ¨ $ and $I ¨ (3686)$ data samples collected with the BESIII detector…

Partial Wave Analysis of $J / I ¨ \to I^^{3} I^^{3} I ¨ $

BESIII Collaboration, M. Ablikim, M. N. Achasov +611

Using a sample of $(10087 \pm 44) \times 1 0^{6}$ $J / I ¨ $ events collected by the BESIII detector at the BEPCII collider, a partial-wave analysis of the decay $I^^{3} I^^{3} I ¨ $ is performed to in…

Improved measurement of the branching fraction of $h_{c} \to I^^{3} I^\cdot^{'} / I^\cdot$ and search for $h_{c} \to I^^{3} I ¨ ^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +651

The processes $h_{c} \to I^^{3} P (P = I^\cdot^{'}, I^\cdot, I ¨ ^{0})$ are studied with a sample of $(27.12 \pm 0.14) \times 1 0^{8}$ $I ¨ (3686)$ events collected by the BESIII detector at the BEPCII collid…

Measurement of the branching fraction of $D^{+} \to I ¨ ^{+} I^½_{I ¨} $

BESIII Collaboration, M. Ablikim, M. N. Achasov +654

By analyzing $e^{+} e^{-}$ collision data with an integrated luminosity of 7.9~fb $^{- 1}$ collected with the BESIII detector at the center-of-mass energy of 3.773~GeV, the branching…

Observation of $D^{+} \to I^\cdot^{'} I^¼^{+} I^½_{I^} ¼$ and First Study of $D^{+} \to I^\cdot^{'} ℓ^{+} I^½_{ℓ}$ Decay Dynamics

BESIII Collaboration, M. Ablikim, M. N. Achasov +648

Using $20.3 f b^{- 1}$ of $e^{+} e^{-}$ collision data collected at the center-of-mass energy 3.773\,GeV with the BESIII detector, we report the first observation of the semileptonic…

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_{\…

Search for the charged lepton flavor violating decay $I^\cdot \to e^{\pm} I^¼^{\mp}$

M. Ablikim, M. N. Achasov, P. Adlarson +708

Based on $(10.087 \pm 0.044) \times 1 0^{9} J / I ¨ $ events collected at the center-of-mass energy $s = 3.097$ ~GeV with the BESIII detector, we search for the charged lepton fla…

Observation of $I ¨ (3686) \to 3 I ¨ $

BESIII Collaboration, M. Ablikim, M. N. Achasov +651

Using $(2.712 \pm 0.014) \times 1 0^{9}$ $I ¨ (3686)$ events collected by the BESIII detector operating at the BEPCII collider, we report the first observation of $I ¨ (3686) \to 3 I ¨ $ decay w…

Measurement of $I^£^{+}$ transverse polarization in $e^{+} e^{-}$ collisions at $s = 3.68 - 3.71$ GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +645

Using $e^{+} e^{-}$ collision data collected with the BESIII detector at seven energy points ranging from 3.68 to 3.71 GeV and corresponding to an integrated luminosity of $652.1~{\rm p…

Amplitude Analysis of Singly Cabibbo-Suppressed Decay $I^_{c}^{+} \to p K^{+} K^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +683

Using a sample of $e^{+} e^{-}$ annihilation data corresponding to an integrated luminosity of 4.4 $fb^{- 1}$ collected with the BESIII detector at the BEPCII collider and produ…

Search for the radiative decay $D_{s}^{+} \to I^^{3} K^{*} (892)^{+}$

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

Using 7.33 fb $^{- 1}$ of $e^{+} e^{-}$ collision data samples collected with the BESIII detector at center-of-mass energies between 4.128 and 4.226 GeV, we perform a simultaneous fit to…

Precision Studies and Searches for CP Asymmetries in the Inclusive Decay $I^_{c}^{+} \to I^ X$

BESIII Collaboration, M. Ablikim, M. N. Achasov +716

Based on $e^{+} e^{-}$ annihilation data collected with the BESIII detector at center-of-mass energies from 4.600 to 4.699 GeV, corresponding to an integrated luminosity of 4.5 fb$^{-1}…

Observation of $I^_{c}^{+} \to n I ¨ ^{+} I^\cdot$ and search for $I^_{c}^{+} \to n a_{0} (980)^{+}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +719

By analysing 6.1 $fb^{- 1}$ of data collected at center-of-mass energies between $s = 4.600$ and 4.843 $GeV$ with the BESIII detector at the BEPCII collider, we obser…

Search for the charmonium semi-leptonic weak decay $J / I ¨ \to D_{s}^{-} e^{+} I^½_{e} + c . c .$

BESIII Collaboration, M. Ablikim, M. N. Achasov +685

Using a data sample of $(10087 \pm 44) \times 1 0^{6}$ $J / I ¨ $ events collected with the BESIII detector at a centre-of-mass energy of $s = 3.097 GeV$ , a dedicated searc…

Observation of $I^ˉ p \to K^{+} I ¨ ^{+} I ¨ ^{-} I ¨ ^{0}$ and $I^ˉ p \to K^{+} I ¨ ^{+} I ¨ ^{-} 2 I ¨ ^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +750

Using $(10087 \pm 44) \times 1 0^{6}$ $J / I ¨ $ events collected with the BESIII detector at a center-of-mass energy of $s = 3.097$ GeV, the antihyperon-nucleon annihilation process…

Measurement of absolute branching fractions of $D_{s}^{+}$ hadronic decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +642

Using $e^{+} e^{-}$ collision data collected at the BESIII detector at center-of-mass energies between 4.128 and 4.226 GeV, corresponding to an integrated luminosity of $7.33~{\rm fb}^…

Search for $X (1870)$ via the decay $J / I ¨ \to I ¨ K^{+} K^{-} I^\cdot$

BESIII Collaboration, M. Ablikim, M. N. Achasov +649

Using a sample of $(10087 \pm 44) \times 1 0^{6}$ $J / I ¨ $ events collected by the BESIII detector at the BEPCII collider, we search for the decay $X (1870) \to K^{+} K^{-} I^\cdot$ via the $J/Ï\to…

Partial Wave Analysis of $e^{+} e^{-} \to I ¨ ^{+} I ¨ ^{-} J / I ¨ $ and Cross Section Measurement of $e^{+} e^{-} \to I ¨ ^{\pm} Z_{c} (3900)^{\mp}$ from 4.1271 to 4.3583 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +645

Based on 12.0 $f b^{- 1}$ of $e^{+} e^{-}$ collision data samples collected by the BESIII detector at center-of-mass energies from 4.1271 to 4.3583 GeV, a partial wave analys…

Measurement of Branching Fractions for $I^_{c}^{+} \to n K_{S}^{0} I ¨ ^{+}$ and $I^_{c}^{+} \to n K_{S}^{0} K^{+}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +611

Based on 4.5 fb $^{- 1}$ of $e^{+} e^{-}$ collision data accumulated at center-of-mass energies between $4.600 GeV$ and $4.699 GeV$ with the BESIII detector, we me…

Search for the charmonium weak decay $J / I ¨ \to D ˉ^{0} K ˉ^{* 0} + c.c.$

BESIII Collaboration, M. Ablikim, M. N. Achasov +699

Based on a sample of $(10087 \pm 44) \times 1 0^{6}$ $J / I ¨ $ events collected at the center-of-mass energy $s$ = 3.0969 GeV with the BESIII detector, we search for the charmonium ra…

First energy scan measurement of $e^{+} e^{-} \to K^{+} K^{-}$ around the $I ¨ (2 S)$ resonance

BESIII Collaboration, M. Ablikim, M. N. Achasov +684

We report the precise energy scan measurement of the cross section lineshape of $I ¨ (2 S) \to K^{+} K^{-}$ . The analysis is based on $e^{+} e^{-}$ collision data corresponding to an int…

Measurement of the Decay $I^^{0} \to I^ I^^{3}$ with Entangled $I^^{0} I^ˉ ^{0}$ Pairs

BESIII Collaboration, M. Ablikim, M. N. Achasov +643

In this Letter, a systematic study of the weak radiative hyperon decay $I^^{0} \to I^ I^^{3}$ at an electron-positron collider using entangled $I^^{0} I^ˉ ^{0}$ pair events is presented.…

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…

Measurement of the Absolute Branching Fraction of Xi(1530)^{-} to (Xi pi)^{-} and Updated Measurement of the Branching Fraction of psi(3686) to anti-Xi^{+} Xi(1530)^{-} + c.c

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

Based on (2712.4+-14.3)*10^{6} psi(3686) events collected with the BESIII detector, the decays Xi(1530)^{-} to Xi^{0} pi^{-} and Xi(1530)^{-} to Xi^{-} pi^{0} are investigated join…

cond-mat.mes-hall2016

Bosonic Condensation and Disorder-Induced Localization in a Flat Band

F. Baboux, L. Ge, T. Jacqmin +8

We report on the engineering of a non-dispersive (flat) energy band in a geometrically frustrated lattice of micro-pillar optical cavities. By taking advantage of the non-hermitian…

Search for the radiative decays $D^{0} \to I^^{3} K ˉ_{1} (1270)^{0}$ and $D^{+} \to I^^{3} K_{1} (1270)^{+}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +680

A search for the radiative decays $D^{0} \to I^^{3} K ˉ_{1} (1270)^{0}$ and $D^{+} \to I^^{3} K_{1} (1270)^{+}$ is conducted using $20.3 fb^{- 1}$ of $e^{+} e^{-}$ annihilation data collected at the c…

First measurements of the branching fractions of $J / I ¨ \to I^^{0} I^ˉ K_{S}^{0} + c . c .$ , $J / I ¨ \to I^^{0} I^ˉ £^{0} K_{S}^{0} + c . c .$ , and $J / I ¨ \to I^^{0} I^ˉ £^{-} K^{+} + c . c .$

BESIII Collaboration, M. Ablikim, M. N. Achasov +686

By analyzing $(10087 \pm 44) \times 1 0^{6}$ $J / I ¨ $ events collected with the BESIII detector at the BEPCII, the decays $J / I ¨ \to I^^{0} I^ˉ K_{S}^{0} + c . c .$ , $J / I ¨ \to I^^{0} I^ˉ £^{0} K_{S}^{0} + c . c .$ …

A novel measurement of the strong-phase difference between $D^{0} \to K^{-} I ¨ ^{+}$ and $D ˉ^{0} \to K^{-} I ¨ ^{+}$ decays using $C$ -even and $C$ -odd quantum-correlated $D D ˉ$ pairs

BESIII Collaboration, M. Ablikim, M. N. Achasov +698

A novel measurement technique of strong-phase differences between the decay amplitudes of $D^{0}$ and $D ˉ^{0}$ mesons is introduced which exploits quantum-correlated $D D ˉ$ pa…

Observation of a New Excited $I^£$ State in $I ¨ (3686) \to p ˉ K^{+} I^£^{0} + c . c .$

BESIII Collaboration, M. Ablikim, M. N. Achasov +681

Using a data sample of $(2712.4 \pm 14.3) \times 1 0^{6} I ¨ (3686)$ events collected with the BESIII detector, a partial-wave analysis of $I ¨ (3686) \to p ˉ K^{+} I^£^{0} + c . c .$ is performed. A…

Observation of $D \to K ˉ_{1} (1270) I^¼^{+} I^½_{I^} ¼$ and test of lepton flavor universality with $D \to K ˉ_{1} (1270) ℓ^{+} I^½_{ℓ}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +651

By analyzing 7.93 $f b^{- 1}$ of $e^{+} e^{-}$ collision data collected at the center-of-mass energy of 3.773 GeV with the BESIII detector operated at the BEPCII collider, we report t…

Observation of $I ¨ (3686) \to I^c ◯^{-} K^{+} I^ˉ ^{0}$ +c.c

BESIII Collaboration, M. Ablikim, M. N. Achasov +640

Using $(27.12 \pm 0.14) \times 1 0^{8}$ $I ¨ (3686)$ events collected with the BESIII detector at BEPCII, the decay of $I ¨ (3686) \to I^c ◯^{-} K^{+} I^ˉ ^{0} + c . c .$ is observed for the first…

cond-mat.str-el2018

The nature of spin excitations in the one-third magnetization plateau phase of Ba $_{3}$ CoSb $_{2}$ O $_{9}$

Y. Kamiya, L. Ge, Tao Hong +10

Magnetization plateaus in quantum magnets---where bosonic quasiparticles crystallize into emergent spin superlattices---are spectacular yet simple examples of collective quantum ph…

Observation of the Exotic State $I ¨ _{1} (1600)$ in $I ¨ (2 S) \to I^^{3} I ¨ _{c 1}, I ¨ _{c 1} \to I ¨ ^{+} I ¨ ^{-} I^\cdot^{'}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +750

A partial wave analysis of the process $I ¨ (2 S) \to I^^{3} I ¨ _{c 1}, I ¨ _{c 1} \to I ¨ ^{+} I ¨ ^{-} I^\cdot^{'}$ is performed using $(2712.4 \pm 14.3) \times 1 0^{6}$ $I ¨ (2 S)$ events collecte…

Measurements of the Absolute Branching Fraction of the Semileptonic Decay $I^^{-} \to I^ e^{-} I^ˉ ½_{e}$ and the Axial Charge of the $I^^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +685

Using $(10087 \pm 44) \times 1 0^{6}$ $J / I ¨ $ events collected with the BESIII detector, we study the semileptonic decay $I^^{-} \to I^ e^{-} I^ˉ ½_{e}$ for the first time at an elect…

Test of lepton universality and measurement of the form factors of $D^{0} \to K^{*} (892)^{-} I^¼^{+} I^½_{I^} ¼$

BESIII Collaboration, M. Ablikim, M. N. Achasov +643

We report a first study of the semileptonic decay $D^{0} \to K^{-} I ¨ ^{0} I^¼^{+} I^½_{I^} ¼$ by analyzing an $e^{+} e^{-}$ annihilation data sample of $7.9 fb^{- 1}$ collected at the c…

Evidence of $I ¨ (3770) \to I ¨ ^{0} J / I ¨ $

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

We report the first evidence for the hadronic transition $I ¨ (3770) \to I ¨ ^{0} J / I ¨ $ using a data sample of $20.3 fb^{- 1}$ collected at $s = 3.773$ ~GeV with the BESIII…

Cross section measurement of $e^{+} e^{-} \to f_{1} (1285) I ¨ ^{+} I ¨ ^{-}$ at center-of-mass energies between $3.808$ and $4.951 GeV$

BESIII Collaboration, M. Ablikim, M. N. Achasov +644

Using data samples collected by the \mbox{BESIII} detector located at the Beijing Electron Positron Collider, the cross sections of the process $e^{+} e^{-} \to f_{1} (1285) I ¨ ^{+} I ¨ ^{-}$ are…

Search for $I^$ - $I^ˉ $ oscillation in $J / I ¨ \to I^ I^ˉ $ decay

BESIII Collaboration, M. Ablikim, M. N. Achasov +643

Using $(10087 \pm 44) \times 1 0^{6}$ $J / I ¨ $ decays collected by the BESIII detector at the BEPCII collider, we search for baryon number violation via $I^ - I^ˉ $ oscillation in the de…

Amplitude analysis and branching fraction measurement of $J / I ¨ \to I^ I^ˉ £^{0} I^\cdot + c.c$

BESIII Collaboration, M. Ablikim, M. N. Achasov +703

Based on a sample of $(10087 \pm 44) \times 1 0^{6}$ $J / I ¨ $ events collected with the BESIII detector, a partial-wave analysis of $J / I ¨ \to I^ I^£ ˉ^{0} I^\cdot + c.c$ is performed f…

Measurements of branching fractions of $I^_{c}^{+} \to I^£^{0} K_{S}^{0} I ¨ ^{+}$ and $I^_{c}^{+} \to I^£^{0} K_{S}^{0} K^{+}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +750

Based on a data sample corresponding to an integrated luminosity of 6.4~fb $^{- 1}$ of $e^{+} e^{-}$ annihilation and collected with the BESIII detector at 13 center-of-mass energy points…

Observation of $I^\cdot_{c} (1 S) \to I^£^{0} I^ˉ £^{0}$ and search for $h_{c} (1 P) \to I^£^{0} I^ˉ £^{0}$ via $I ¨ (3686)$ transitions

BESIII Collaboration, M. Ablikim, M. N. Achasov +776

Using $(2712.4 \pm 14.3) \times 1 0^{6} I ¨ (3686)$ events collected by the BESIII detector operating at the BEPCII collider, the hadronic decay $I^\cdot_{c} \to I^£^{0} I^£^{0} ˉ$ is observe…

Search for a massless particle beyond the Standard Model in the $I^^{0} \to I^ + invisible$ decay

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

A search for a massless beyond-standard-model particle is performed in the decay $I^^{0} \to I^ + invisible$ using $(1.0087 \pm 0.0044) \times 1 0^{10}$ $J / I ¨ $ events collected wi…

Measurements of the branching fractions of $I ¨ _{c J} \to I ¨ I ¨ I^\cdot, I ¨ I ¨ I^\cdot^{'}$ and $I ¨ K^{+} K^{-} I^\cdot$

BESIII Collaboration, M. Ablikim, M. N. Achasov +683

Using a sample of $(2712.4 \pm 14.3) \times 1 0^{6} I ¨ $ (3686) events collected by the BESIII detector at the BEPCII collider, we measure the branching fractions of the decays $Ï_{cJ}…

Observation of the $I ¨ _{c J}$ decays into $p K^{-} I^ˉ I^\cdot + c.c.$

BESIII Collaboration, M. Ablikim, M. N. Achasov +780

By analyzing $(2712.4 \pm 14.3) \times 1 0^{6}$ $I ¨ (3686)$ events collected with the BESIII detector operating at the BEPCII collider, the decays $Ï_{cJ} \to pK^{-}\barÎÎ·+ \mathr…

Study of the reactions $n ˉ p \to 2 I ¨ ^{+} I ¨ ^{-}$ , $2 I ¨ ^{+} I ¨ ^{-} I ¨ ^{0}$ , and $2 I ¨ ^{+} I ¨ ^{-} 2 I ¨ ^{0}$ using $J / I ¨ \to p I ¨ ^{-} n ˉ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +688

We report an experimental investigation of the reactions $n ˉ p \to 2 I ¨ ^{+} I ¨ ^{-}$ , $n ˉ p \to 2 I ¨ ^{+} I ¨ ^{-} I ¨ ^{0}$ , and $n ˉ p \to 2 I ¨ ^{+} I ¨ ^{-} 2 I ¨ ^{0}$ using $(10.087…

Measurements of the branching fractions of $I ¨ _{c J} \to 2 K^{+} 2 K^{-} I ¨ $ and $I ¨ K^{+} K^{-} I ¨ $ decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +688

Using a data sample of $(2712.4 \pm 14.3) \times 1 0^{6}$ $I ¨ (3686)$ events collected with the BESIII detector operating at the BEPCII collider, we report the first observation of t…

Study of the light scalar $a_{0} (980)$ through the decay $D^{0} \to a_{0} (980)^{-} e^{+} I^½_{e}$ with $a_{0} (980)^{-} \to I^\cdot I ¨ ^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +654

Using 7.93 $f b^{- 1}$ of $e^{+} e^{-}$ collision data collected at a center-of-mass energy of 3.773 $GeV$ with the BESIII detector, we present an analysis of the decay $D^{0}…

Experimental study of the reaction $I^^{0} n \to I^ I^ X$ using $I^^{0}$ -nucleus scattering

BESIII Collaboration, M. Ablikim, M. N. Achasov +703

Using $(10087 \pm 44) \times 1 0^{6}$ $J / I ¨ $ events collected with the BESIII detector operating at the BEPCII storage ring in $2009$ , $2012$ , $2018$ , and $2019$ , we perform a search for…

Measurement of the integrated luminosity of the data collected at 3.773 GeV by BESIII from 2021 to 2024

BESIII Collaboration, M. Ablikim, M. N. Achasov +640

We present a measurement of the integrated luminosity of $e^{+} e^{-}$ collision data collected with the BESIII detector at the BEPCII collider at a center-of-mass energy of $E_{\rm cm}…

Study of the Magnetic Dipole Transition of $J / I ¨ \to I^^{3} I^\cdot_{c}$ via $I^\cdot_{c} \to p p ˉ$

BESIII Collaboration, M. Ablikim, M. N. Achasov +692

Using $(10.087 \pm 0.044) \times 1 0^{9}$ $J / I ¨ $ events collected with the BESIII detector at the $e^{+} e^{-}$ BEPCII collider, we present the first amplitude analysis of $J / I ¨ \to I^^{3} p p ˉ$ …

cond-mat.str-el2016

Ba8CoNb6O24: a spin-1/2 triangular-lattice Heisenberg antiferromagnet in the 2D limit

R. Rawl, L. Ge, H. Agrawal +11

The perovskite Ba8CoNb6O24 comprises equilateral effective spin-1/2 Co2+ triangular layers separated by six non-magnetic layers. Susceptibility, specific heat and neutron scatterin…

Proof of principle for nucleon polarization measurement at BESIII

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

A novel technique for measuring the spin polarization of final-state nucleons in a general-purpose spectrometer is validated. Using $10.09 \times 1 0^{9}$ $J / I ¨ $ events at BESIII, the…

Precise measurement of the CKM angle $I^^{3}$ with a novel approach

The BESIII, LHCb Collaborations, : +1903

A measurement of the CKM angle $I^^{3}$ is performed by applying a novel, unbinned, model-independent approach to datasets of electron-positron collisions collected by the BESIII exper…

Observation of $D \to a_{0} (980) I ¨ $ in the decays $D^{0} \to I ¨ ^{+} I ¨ ^{-} I^\cdot$ and $D^{+} \to I ¨ ^{+} I ¨ ^{0} I^\cdot$

BESIII Collaboration, M. Ablikim, M. N. Achasov +640

We report the first amplitude analysis of the decays $D^{0} \to I ¨ ^{+} I ¨ ^{-} I^\cdot$ and $D^{+} \to I ¨ ^{+} I ¨ ^{0} I^\cdot$ using a data sample taken with the BESIII detector at the c…

physics.optics2014

Scalable numerical approach for the steady-state ab initio laser theory

S. Esterhazy, D. Liu, M. Liertzer +7

We present an efficient and flexible method for solving the non-linear lasing equations of the steady-state ab initio laser theory. Our strategy is to solve the underlying system o…

Improved measurement of the semileptonic decay $D_{s}^{+} \to K^{0} e^{+} I^½_{e}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +649

Analyzing $e^{+} e^{-}$ collision data corresponding to an integrated luminosity of $7.33 fb^{- 1}$ collected at center-of-mass energies between 4.128 and 4.226~GeV with the BES…

First observation of the $I^\cdot_{c} \to I^^{0} I^ˉ ^{0}$ decay

BESIII Collaboration, M. Ablikim, M. N. Achasov +761

Using $(10087 \pm 44) \times 1 0^{6}$ $J / I ¨ $ events collected with the BESIII detector at the BEPCII collider, we report the first observation of the decay $Î·_{c} \to Î^{0} \barÎ^{0}…

Determination of CKM matrix element and axial vector form factors from weak decays of quantum-entangled strange baryons

BESIII Collaboration, M. Ablikim, M. N. Achasov +697

The electromagnetic structure of the nucleon can be determined from the scattering of electrons off a nucleon target. However, to study its axial structure, neutrino beams are requ…

physics.comp-ph2016

ASCR/HEP Exascale Requirements Review Report

Salman Habib, Robert Roser, Richard Gerber +51

This draft report summarizes and details the findings, results, and recommendations derived from the ASCR/HEP Exascale Requirements Review meeting held in June, 2015. The main conc…

Amplitude analysis and branching fraction measurement of the decay $D^{0} \to K_{S}^{0} I ¨ ^{0} I ¨ ^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +703

An amplitude analysis of the decay $D^{0} \to K_{S}^{0} I ¨ ^{0} I ¨ ^{0}$ is performed to determine the relative magnitudes and phases of different intermediate processes. The analysis uses $e^…

Search for $I ¨ _{0} (4360) \to I^\cdot I ¨ (2 S)$ through the process $e^{+} e^{-} \to I^\cdot I^\cdot I ¨ (2 S)$

BESIII Collaboration, M. Ablikim, M. N. Achasov +763

Using data samples corresponding to an integrated luminosity of 0.9~fb $^{- 1}$ collected with the BESIII detector operating at the BEPCII storage ring at the center-of-mass energies…

cond-mat.mtrl-sci2019

Ba8MnNb6O24: a model two-dimensional spin-5/2 triangular lattice antiferromagnet

R. Rawl, L. Ge, Z. Lu +8

We successfully synthesized and characterized the triangular lattice anitferromagnet Ba $_{8}$ MnNb $_{6}$ O $_{24}$ , which comprises equilateral spin-5/2 Mn $^{2 +}$ triangular layers separa…

Search for $I^\cdot_{c} (2 S) \to 2 (I ¨ ^{+} I ¨ ^{-})$ and improved measurement of $I ¨ _{c J} \to 2 (I ¨ ^{+} I ¨ ^{-})$

BESIII Collaboration, M. Ablikim, M. N. Achasov +643

We search for the hadronic decay $I^\cdot_{c} (2 S) \to 2 (I ¨ ^{+} I ¨ ^{-})$ in the $I ¨ (3686) \to I^^{3} I^\cdot_{c} (2 S)$ radiative decay using $(27.12 \pm 0.14) \times 1 0^{8}$ $I ¨ (3686)$ events collected by the BESI…

Measurement of the Branching Fraction of \boldmath{ $I ¨ (2 S) \to I^^{3} I ¨ ^{0}$ }

BESIII Collaboration, M. Ablikim, M. N. Achasov +650

Based on $(2712.4 \pm 14.1) \times 1 0^{6} I ¨ (2 S)$ events, 7.9 fb $^{- 1}$ $I ¨ (3773)$ data, and 0.8 fb $^{- 1}$ off-resonance data samples collected with the BESIII detector, we measure the…

Observation of $I ¨ _{c J} \to p p ˉ K_{S}^{0} K^{-} I ¨ ^{+} + c . c .$

BESIII Collaboration, M. Ablikim, M. N. Achasov +653

By analyzing $(27.12 \pm 0.14) \times 1 0^{8}$ $I ¨ (3686)$ events collected with the BESIII detector operating at the BEPCII collider, the decays of $Ï_{cJ} \to p \bar{p} K^0_S K^- Ï^+ +…

Observation of resonant contribution to the $e^{+} e^{-} \to I^c ◯^{-} I^ˉ c ◯^{+}$ around 4.2 GeV and evidence of $I ¨ (3770) \to I^c ◯^{-} I^ˉ c ◯^{+}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +635

Using $e^{+} e^{-}$ collision data corresponding to a total integrated luminosity of 22.7 fb $^{- 1}$ , collected at center-of-mass energies between 3.7 and 4.7 GeV with the BESIII detecto…

Observation of the Singly Cabibbo-Suppressed Decay $I^_{c}^{+} \to p I ¨ ^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +643

Utilizing 4.5 $fb^{- 1}$ of $e^{+} e^{-}$ annihilation data collected with the BESIII detector at the BEPCII collider at center-of-mass energies between 4.600 and 4.699 GeV, the f…

cond-mat.str-el2022

Electronic structure of the frustrated diamond lattice magnet NiRh $_{2}$ O $_{4}$

B. Zager, J. R. Chamorro, L. Ge +7

The $A$ -site spinel NiRh $_{2}$ O $_{4}$ is the only known realization of a spin-1 diamond lattice magnet and is predicted to host unconventional magnetic phenomena driven by frustrated n…

Search for sub-GeV dark particles in $I^\cdot \to I ¨ ^{0} + invisible$ decay

BESIII Collaboration, M. Ablikim, M. N. Achasov +685

Using (10087 $\pm$ 44) $\times$ 10 $^{6}$ $J / I ¨ $ events collected with the BESIII detector at the BEPCII collider at the center-of-mass energy of $s = 3.097 GeV$ , we report th…

Search for the massless dark photon with $D^0\toÏÎ³'$ and $D^0\toÎ³Î³'$

BESIII Collaboration, M. Ablikim, M. N. Achasov +653

Using $7.9 f b^{- 1}$ of $e^{+} e^{-}$ collision data collected at $s = 3.773$ GeV with the BESIII detector at the BEPCII collider, we search for the massless dark photon with t…

Search for a hypothetical gauge boson and dark photons in charmonium transitions

BESIII Collaboration, M. Ablikim, M. N. Achasov +678

We report a direct search for a new gauge boson, $X$ , with a mass of $17 MeV / c^{2}$ , which could explain the anomalous excess of $e^{+} e^{-}$ pairs observed in the $^{8} Be$ n…

Measurement of Born Cross Sections and Effective Form Factors of $e^{+} e^{-} \to I^c ◯^{-} I^ˉ c ◯^{+}$ from $s$ = 3.7 to 4.7 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +635

Using $e^{+} e^{-}$ collision data corresponding to an integrated luminosity of 22.7 fb $^{- 1}$ , collected at center-of-mass energies between 3.7 and 4.7 GeV with the BESIII detector at…

Measurement of the CKM angle $I^^{3}$ in $B^{\pm} \to D (\to K_{S}^{0} h^{' +} h^{' -}) h^{\pm}$ decays with a novel approach

The BESIII, LHCb Collaborations, : +1903

A measurement of the CKM angle $I^^{3}$ and related strong-phase parameters is performed using a novel, model-independent approach in ${B^{\pm}\rightarrow D(\rightarrow K^{0}_{\rm S} h…

Measurements of the branching fractions of semileptonic $D_{s}^{+}$ decays via $e^{+} e^{-} \to D_{s}^{+} D_{s}^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +643

We measure the absolute branching fractions of semileptonic $D_{s}^{+}$ decays via the $e^{+} e^{-} \to D_{s}^{*+} D_{s}^{*-}$ process using $e^{+} e^{-}$ collision data corresponding to an integrated…

#charmonium decays#ηc decay#branching fraction measurement#interference effects

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…

Measurement of branching fractions of $D_{s}^{+} \to K_{S}^{0} K_{S}^{0} I ¨ ^{+} I ¨ ^{0}$ and $D_{s}^{+} \to K_{S}^{0} K^{+} I ¨ ^{0} I ¨ ^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +683

By analyzing $e^{+} e^{-}$ collision data corresponding to an integrated luminosity of 7.33~fb $^{- 1}$ collected with the BESIII detector at center-of-mass energies ranging from 4.128 to…

Measurement of Born cross sections of $e^{+} e^{-} \to I^^{0} I^ˉ ^{0}$ and search for charmonium(-like) states at $s$ = 3.51-4.95 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +653

Using $e^{+} e^{-}$ collision data collected by the BESIII detector at BEPCII corresponding to an integrated luminosity of 30 $f b^{- 1}$ , we measure Born cross sections and effective…

Search for the radiative decays $D^{+} \to I^^{3} I ¨ ^{+}$ and $D^{+} \to I^^{3} K^{*+}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +652

We search for the radiative decays $D^{+} \to I^^{3} I ¨ ^{+}$ and $D^{+} \to I^^{3} K^{*+}$ using 20.3~fb $^{- 1}$ of $e^{+} e^{-}$ annihilation data collected at the center-of-mass energy $\sqrt{s}=3…

Observation of the singly Cabibbo suppressed decay $D^{0} \to b_{1} (1235)^{-} e^{+} I^½_{e}$ and evidence for $D^{+} \to b_{1} (1235)^{0} e^{+} I^½_{e}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +657

By analyzing a data sample of $e^{+} e^{-}$ collisions with center-of-mass energy $s = 3.773$ ~GeV, corresponding to an integrated luminosity of $7.9 fb^{- 1}$ collected with t…

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…

Evidence of transverse polarization of $I^^{0}$ hyperon in $I ¨ (3686) \to I^^{0} I^ˉ ^{0}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +684

Using $(2.712 \pm 0.014) \times 1 0^{9}$ $I ¨ (3686)$ events collected with the BESIII detector at the BEPCII collider, we report an evidence of $I^^{0}$ transverse polarization with a si…

Search for $D^{0} \to K^{-} I^\cdot e^{+} I^½_{e}$ , $D^{+} \to K_{S}^{0} I^\cdot e^{+} I^½_{e}$ and $D^{+} \to I^\cdot I^\cdot e^{+} I^½_{e}$ decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +640

By analyzing $e^{+} e^{-}$ annihilation data corresponding to an integrated luminosity of 7.93 fb $^{- 1}$ , collected at the center-of-mass energy of 3.773 GeV with the BESIII detector, w…

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…

Study of $I ¨ \to K K ˉ$ in the amplitude analysis of $D^{+} \to K_{S}^{0} K_{L}^{0} I ¨ ^{+}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +772

We present the first amplitude analysis and branching fraction measurement of $D^{+} \to K_{S}^{0} K_{L}^{0} I ¨ ^{+}$ decay. The analysis uses a dataset corresponding to an in…

Measurement of the branching fractions of $I ¨ _{c J} \to I ¨ ^{+} I ¨ ^{-} I ¨ ^{0} I ¨ ^{0}$ via $I ¨ (3686) \to I^^{3} I ¨ _{c J}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +762

Using $(2712.4 \pm 14.3) \times 1 0^{6}$ $I ¨ (3686)$ events collected with the BESIII detector operating at BEPCII, the branching fractions of $I ¨ _{c J} \to I ¨ ^{+} I ¨ ^{-} I ¨ ^{0} I ¨ ^{0}$ ( $J = 0, 1, 2$ ) a…

First measurements of the absolute branching fraction of $I^_{c} (2625)^{+} \to I^_{c}^{+} I ¨ ^{+} I ¨ ^{-}$ and upper limit on $I^_{c} (2595)^{+} \to I^_{c}^{+} I ¨ ^{+} I ¨ ^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +613

The absolute branching fraction of the decay $I^_{c} (2625)^{+} \to I^_{c}^{+} I ¨ ^{+} I ¨ ^{-}$ is measured for the first time to be $(50.7 \pm 5. 0_{stat.} \pm 4. 9_{syst.}) %$ wit…

cond-mat.str-el2017

Spin order and dynamics in the diamond-lattice Heisenberg antiferromagnets CuRh2O4 and CoRh2O4

L. Ge, J. Flynn, J. A. M. Paddison +5

Antiferromagnetic insulators on the diamond lattice are candidate materials to host exotic magnetic phenomena ranging from spin-orbital entanglement to degenerate spiral ground-sta…

Measurements of Normalized Differential Cross Sections of Inclusive $I^\cdot$ Production in $e^{+} e^{-}$ Annihilation at Energy from 2.0000 to 3.6710 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +650

Using data samples collected with the BESIII detector operating at the BEPCII storage ring, the cross section of the inclusive process $e^{+} e^{-} \to I^\cdot + X$ , normalized by the tot…

Amplitude Analysis of the Isospin-Violating Decay $J / I ¨ \to I^^{3} I^\cdot I ¨ ^{0}$

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

Using $(10087 \pm 44) \times 1 0^{6}$ $J / I ¨ $ events collected with the BESIII detector, we perform the first amplitude analysis of the process $J / I ¨ \to I^^{3} I^\cdot I ¨ ^{0}$ . The decay is domina…

physics.acc-ph2018

Warp-X: a new exascale computing platform for beam-plasma simulations

J. -L. Vay, A. Almgren, J. Bell +12

Turning the current experimental plasma accelerator state-of-the-art from a promising technology into mainstream scientific tools depends critically on high-performance, high-fidel…

First measurement of the cross sections for $e^{+} e^{-} \to K^{0} K^{-} I ¨ ^{+} J / I ¨ + c . c .$ at $s$ from 4.396 to 4.951 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +701

Using $e^{+} e^{-}$ collision data at 19 center-of-mass energies ranging from $4.396$ to $4.951 GeV$ corresponding to a total integrated luminosity of $8.86 fb^{- 1}$ coll…

Search for $I^\cdot_{c} (2 S) \to I ¨ I ¨ $ and $I ¨ I ¨ $ decays and measurements of $I ¨ _{c J} \to I ¨ I ¨ $ and $I ¨ I ¨ $ in $I ¨ (2 S)$ radiative processes

BESIII Collaboration, M. Ablikim, M. N. Achasov +649

Using $(2712 \pm 14)$ $\times$ 10 $^{6}$ $I ¨ (2 S)$ events collected with the BESIII detector at the BEPCII collider, we search for the decays $I^\cdot_{c} (2 S) \to I ¨ I ¨ $ and $Î·_{c}(2S)\toÏÏ…

Measurement of the singly Cabibbo-suppressed decay $I^_{c}^{+} \to p I^\cdot^{'}$ with Deep Learning

BESIII Collaboration, M. Ablikim, M. N. Achasov +689

Using $4.5$ fb $^{- 1}$ of $e^{+} e^{-}$ collision data collected with the BESIII detector at center-of-mass energies from 4.600 to 4.699 GeV, we report a measurement of the singly Cabibb…