papers

Publications (82)

hep-ex2026

Measurement of the singly Cabibbo-suppressed decay with Deep Learning

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

Using fb of 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…

hep-ex2026

First Measurement of the Decay, Study of Dynamics and Test of Lepton Universality with Decays

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

We report the first measurement of the semileptonic decay and an improved measurement of the decay

hep-ex2026

Search for the isospin-violating decays and

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

Using a sample of ~ events collected with the BESIII detector, we perform a search for the isospin-violating decays $χ_{cJ}\toΛ\barΣ^{0}+c…

hep-ex2026

Precision Measurement of - Mass Difference

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

We measure the mass difference between and , , using the decay chain , utilizing ann…

hep-ex2026

First measurement of the absolute branching fractions of nonleptonic decays and test of the rule

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

Based on events collected by the BESIII detector at the center-of-mass energy GeV, the first absolute measurement of the bran…

hep-ex2026

Observation of Polarization and Determination of Its Electric and Magnetic Moments in

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

Using the data sample of events collected with the BESIII detector at the BEPCII collider, we present an observation of the polarization in…

hep-ex2026

Study of - Annihilation into Light Mesons

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

The annihilation of - into light mesons is studied using events collected with the BESIII detector at the BEPCII storage ring. The…

hep-ex2026

First evidence for and search for

BESIII Collaboration, M. Ablikim, M. N. Achasov +706

Using collision data corresponding to an integrated luminosity of 7.33~ recorded by the BESIII detector at center-of-mass energies between 4.128 and 4.226~$…

hep-ex2026

First Measurement of the Absolute Branching Fraction of

BESIII Collaboration, M. Ablikim, M. N. Achasov +691

We apply a tag-and-probe method to precisely measure the absolute branching fraction of the decay with the BESIII experiment at BEPCII. Starting with a large initia…

hep-ex2026

Precision measurements of semleptonic decays and ()

BESIII Collaboration, M. Ablikim, M. N. Achasov +773

The branching fractions of , , , and are measured to be $(2.950\pm0.017_{\rm stat.}\pm 0.017_{\…

hep-ex2026

Measurement of Born cross sections for at 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 reaction at 47 center-of-mass energies between 3.510 and 4.946 GeV. The…

hep-ex2026

Search for the charged lepton flavor violating decay

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

Based on events collected at the center-of-mass energy ~GeV with the BESIII detector, we search for the charged lepton fla…

hep-ex2026

Measurement of Born Cross Sections for at GeV and Observation of

BESIII Collaboration, M. Ablikim, M. N. Achasov +771

Using 44.55 fb of collision data collected by the BESIII detector at the BEPCII collider, we report the first measurement of the Born cross sections for the $e^+e^-…

hep-ex2026

Precision Measurement of Decay Dynamics in

BESIII Collaboration, M. Ablikim, M. N. Achasov +773

The branching fractions of , , , and are precisely measured, using 20.3 fb of c…

hep-ex2026

Amplitude Analysis of Singly Cabibbo-Suppressed Decay

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

Using a sample of annihilation data corresponding to an integrated luminosity of 4.4 collected with the BESIII detector at the BEPCII collider and produ…

hep-ex2026

Search for the radiative decay

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

Using 7.33 fb of 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…

hep-ex2026

Precision Studies and Searches for CP Asymmetries in the Inclusive Decay

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

Based on 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}…

hep-ex2026

Strong and electromagnetic amplitudes, direct and isospin asymmetries in the decays

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

Using annihilation data collected at 26 center-of-mass energy points between 3000.00 and with the BESIII detector, corresponding to a total integrated…

hep-ex2026

Observation of and search for

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

By analysing 6.1 of data collected at center-of-mass energies between and 4.843 with the BESIII detector at the BEPCII collider, we obser…

hep-ex2026

First Observation of and Determination of the Branching Fraction of

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

Using 20.3~fb of annihilation data collected at a center-of-mass energy of 3.773~GeV with the BESIII detector, we report the first observation of the semileptonic d…

hep-ex2026

Search for the charmonium semi-leptonic weak decay

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

Using a data sample of events collected with the BESIII detector at a centre-of-mass energy of , a dedicated searc…

hep-ex2026

Observation of and

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

Using events collected with the BESIII detector at a center-of-mass energy of GeV, the antihyperon-nucleon annihilation process…

hep-ex2026

Updated measurement of the branching fraction of

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

Using a dataset of 7.33 fb of annihilation data collected with the BESIII detector at center-of-mass energies from 4.128 to 4.226 GeV, we report an updated measure…

hep-ex2026

First energy scan measurement of around the resonance

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

We report the precise energy scan measurement of the cross section lineshape of . The analysis is based on collision data corresponding to an int…

hep-ex2026

Observation of a Doubly-strange Hyperon in

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

Based on a sample of events collected with the BESIII detector at BEPCII, we report the first observation of the decay $J/ψ\rightarrow K^- Σ^0…

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 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…

hep-ex2026

Search for the radiative decays and

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

A search for the radiative decays and is conducted using of annihilation data collected at the c…

hep-ex2025

First measurements of the branching fractions of , , and

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

By analyzing events collected with the BESIII detector at the BEPCII, the decays ,

hep-ex2026

Precise Measurement of Matter-Antimatter Asymmetry with Entangled Hyperon Antihyperon Pairs

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

A search for violation with an entangled system of pairs is performed, using events collected with the BESIII experiment. A n…

hep-ex2026

Observation of a New Excited State in

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

Using a data sample of events collected with the BESIII detector, a partial-wave analysis of is performed. A…

hep-ex2026

Observation of the Exotic State in

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

A partial wave analysis of the process is performed using events collecte…

hep-ex2025

Measurements of the Absolute Branching Fraction of the Semileptonic Decay and the Axial Charge of the

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

Using events collected with the BESIII detector, we study the semileptonic decay for the first time at an elect…

hep-ex2026

Measurement of the double Dalitz decay

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

The BESIII experiment measured the rare decay of the eta meson into two electron-positron pairs, determining its branching fraction to be about 2.6 × 10⁻⁵.

#eta meson decay#double dalitz decay#branching fraction#BESIII detector
hep-ex2026

Evidence of

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

We report the first evidence for the hadronic transition using a data sample of collected at ~GeV with the BESIII…

hep-ex2026

Measurement of Born Cross Sections for at GeV and Observation of

BESIII Collaboration, M. Ablikim, M. N. Achasov +704

Using collision data corresponding to an integrated luminosity of 44 fb collected with the BESIII detector at the BEPCII collider, we report the first measurement o…

hep-ex2026

Measurement of the branching fraction of

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

The branching fraction of the electromagnetic Dalitz decay is measured with an collision data sample collected by the BESIII experi…

hep-ex2025

First Observation of Hyperon Transverse Polarization in

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

Based on events collected with the BESIII detector at the BEPCII collider, we present the first observation of spin transverse polarization o…

hep-ex2026

Amplitude analysis and branching fraction measurement of

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

Based on a sample of events collected with the BESIII detector, a partial-wave analysis of is performed f…

hep-ex2026

Measurements of branching fractions of and

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

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

hep-ex2026

Observation of and search for via transitions

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

Using events collected by the BESIII detector operating at the BEPCII collider, the hadronic decay is observe…

hep-ex2026

Cross Section Measurements of via Antineutrons Produced by Decays

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

Based on a novel method for producing antineutrons via decays, we report a study of inelastic scattering into final states containing kaons. The analysis uses $(1…

hep-ex2026

Search for a massless particle beyond the Standard Model in the decay

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

A search for a massless beyond-standard-model particle is performed in the decay using events collected wi…

hep-ex2026

Measurements of the absolute branching fractions of the hadronic decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +722

Based on 4.5 fb of collision data collected at center-of-mass energies between 4599.53 MeV and 4698.82 MeV with the BESIII detector, the absolute branching fraction…

hep-ex2025

Measurements of the branching fractions of and

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

Using a sample of (3686) events collected by the BESIII detector at the BEPCII collider, we measure the branching fractions of the decays $χ_{cJ}…

hep-ex2026

Observation of the decays into

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

By analyzing events collected with the BESIII detector operating at the BEPCII collider, the decays $χ_{cJ} \to pK^{-}\barΛη+ \mathr…

hep-ex2026

Study of the reactions , , and using

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

We report an experimental investigation of the reactions , , and using $(10.087…

hep-ex2026

An improved measurement of

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

Using a sample of events collected with the BESIII detector, an improved measurement of the decay , with…

hep-ex2026

Measurements of the branching fractions of and decays

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

Using a data sample of events collected with the BESIII detector operating at the BEPCII collider, we report the first observation of t…

hep-ex2026

Search for the charged lepton flavour violating decay

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

Based on events collected in collisions at GeV with the BESIII detector, we present a search for the charged lepton flavou…

hep-ex2026

Cross section measurement of from 4.008 GeV to 4.951 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +682

Using data samples with a total integrated luminosity of at center-of-mass energies between 4.008 and 4.951~GeV collected with the BESIII detector, the cross sec…

hep-ex2025

Observation and branching fraction measurements of

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

Based on events collected with the BESIII detector, the decays () are observed for the f…

hep-ex2026

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 events at BESIII, the…

hep-ex2026

Precise measurement of the CKM angle with a novel approach

The BESIII, LHCb Collaborations, : +1903

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

hep-ex2026

Observation of and Measurement of Electromagnetic Form Factors of Proton at GeV

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

We search for possible charmonium(-like) states decaying into the final state by studying the Born cross sections of the reaction, and we determine…

hep-ex2025

Search for the lepton number violating process

BESIII Collaboration, M. Ablikim, M. N. Achasov +691

We present a search for the lepton number violating decay with events collected by the BESIII detector at the BEPC…

hep-ex2026

Observation of in the Amplitude Analysis of

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

We report the first observation of the decay in a data set corresponding to an integrated luminosity of 7.33 fb, collected in collisions…

hep-ex2026

First observation of the decay

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

Using events collected with the BESIII detector at the BEPCII collider, we report the first observation of the decay $η_{c} \to Ξ^{0} \barΞ^{0}…

hep-ex2026

Measurement of Born Cross Section for at GeV

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

Using collision data collected with the BESIII detector at the BEPCII collider corresponding to a total integrated luminosity of 44~fb, we present the first measure…

hep-ex2026

Search for through the process

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

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

hep-ex2026

Precise measurement of the form factors in and observation of

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

We report a study of the semileptonic decays (where ) based on a sample of of annihilati…

hep-ex2026

Amplitude Analysis and Branching Fraction Measurement of

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

We present the first amplitude analysis of the hadronic decay , using collision data collected with the BESIII detector at a center-of-mass energy…

hep-ex2026

First Observation of \boldmath{ and } in \boldmath{ and } Decays

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

We perform the first amplitude analysis of the singly Cabibbo-suppressed decays , using collision data collected with the BESIII detec…

hep-ex2026

Unexpected large relative strong phase and search for isospin breaking and asymmetries in $J/ψ\to K^*(892)\bar K

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

Using a direct scan of 26 energy points near the resonance, we perform the first measurement of the relative phase between the strong and electromagnetic ampli…

hep-ex2026

Observation of the in and

BESIII Collaboration, M. Ablikim, M. N. Achasov +767

Based on events collected with the BESIII detector, the and processe…

hep-ex2026

Amplitude analysis and branching fraction measurement of the decay

BESIII Collaboration, M. Ablikim, M. N. Achasov +770

An amplitude analysis of the singly Cabibbo-suppressed decay is performed, for the first time, to determine the relative magnitudes and phases of differ…

hep-ex2026

Search for sub-GeV dark particles in decay

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

Using (1008744)10 events collected with the BESIII detector at the BEPCII collider at the center-of-mass energy of , we report th…

hep-ex2026

Study of the process from = 4.42 to 4.95 GeV at BESIII

BESIII Collaboration, M. Ablikim, M. N. Achasov +782

Based on of collision data collected at center-of-mass energies between 4.42 and 4.95 GeV with the BESIII detector at the BEPCII storage ring, we inves…

hep-ex2026

Search for the decays and at BESIII

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

Using a 10.9 fb data sample collected by the BESIII detector at center-of-mass energies from 4.16 to 4.34 GeV, we search for the charmless decays $X(3872) \to K_{S}^{0}K^{\p…

hep-ex2026

Measurement of the CKM angle in decays with a novel approach

The BESIII, LHCb Collaborations, : +1903

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

hep-ex2026

Observation of via

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…

#charmonium decays#ηc decay#branching fraction measurement#interference effects
hep-ex2026

Search for an isoscalar partner of the in

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

Using a data sample corresponding to an integrated luminosity of 20.3 fb collected at center-of-mass energies from 4.18 to 4.95 GeV with the BESIII detector, we observe the…

hep-ex2026

First Amplitude Analysis of and Observation of

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

We present the first amplitude analysis of the semileptonic decay by analyzing annihilation data corresponding to an integrated luminosity of…

hep-ex2026

Evidence of transverse polarization of hyperon in

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

Using events collected with the BESIII detector at the BEPCII collider, we report an evidence of transverse polarization with a si…

hep-ex2026

Search for the charmonium weak decay and

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

We search for the weak decays and for the first time. The search is based on events containin…

hep-ex2026

Observation and branching fraction measurements of and

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

Using events and events collected by the BESIII detector operating at the BEPCII collider, we report the…

hep-ex2025

Test of Symmetry in the Neutral Decays of via

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

Using events collected with the BESIII detector, a full angular distribution analysis is carried out on the process $J/ψ\rightarrowΛ\barΛ\right…

hep-ex2026

Study of in the amplitude analysis of

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

We present the first amplitude analysis and branching fraction measurement of decay. The analysis uses a dataset corresponding to an in…

hep-ex2026

Measurement of the branching fractions of via

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

Using events collected with the BESIII detector operating at BEPCII, the branching fractions of () a…

hep-ex2026

Precise measurements of and decays

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

Using collision data corresponding to an integrated luminosity of 20.3 fb, collected at the center-of-mass energy of 3.773 GeV with the BESIII detector, we present…

hep-ex2026

First Experimental Constraint on the Scalar Current in the Transition

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

Using 20.3 fb of collision data taken at the center-of-mass energy of GeV, we report the first experimental constraint on the scalar current in the…

hep-ex2026

Amplitude Analysis of the Isospin-Violating Decay

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

Using events collected with the BESIII detector, we perform the first amplitude analysis of the process . The decay is domina…