Measurement of $\ddot{I}{‡}_{cJ}$ decaying into $\hat{I}{\cdot }^{\prime }{K}^{+}{K}^{-}$

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

Using $(106.41\pm 0.86)\times 10^6$ $\ddot{I}ˆ(3686)$ events collected with the BESIII detector at BEPCII, we study for the first time the decay $\ddot{I}{‡}_{cJ}\to \hat{I}{\cdot }^{\prime }{K}^{+}{K}^{-}$, where $η'\toγυ

Search for $K_S^0$ invisible decays

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

Based on $(1.0087\pm 0.0044)\times 10^{10}$ $J/\ddot{I}ˆ$ events collected with the BESIII detector at the BEPCII $e^{+}{e}^{-}$ storage ring, we search for $K_S^0$ invisible decays via the $…

Observation of $\ddot{I}ˆ(3686)\to 3\ddot{I}•$

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

Using $(2.712\pm 0.014)\times 10^9$ $\ddot{I}ˆ(3686)$ events collected by the BESIII detector operating at the BEPCII collider, we report the first observation of $\ddot{I}ˆ(3686)\to 3\ddot{I}•$ decay w…

Updated model-independent measurement of the strong-phase differences between $D^0$ and ${\bar{D}}^0\to K_{S/L}^0\ddot{I}{€}^{+}\ddot{I}{€}^{-}$ decays

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

The strong-phase differences between $D^0\to K_{S/L}^0\ddot{I}{€}^{+}\ddot{I}{€}^{-}$ and ${\bar{D}}^0\to K_{S/L}^0\ddot{I}{€}^{+}\ddot{I}{€}^{-}$ decays are one of the most important inputs in measuring the $CP$ violating a…

Measurement of the Branching Fraction For the Semi-Leptonic Decays $D^{0(+)}\to \ddot{I}{€}^{-(0)}\hat{I}{¼}^{+}\hat{I}{½}_{\hat{I}}¼$ and Test of Lepton Flavor Universality

M. Ablikim, M. N. Achasov, S. Ahmed +432

Using a data sample corresponding to an integrated luminosity of $2.93\mathrm{f}{\mathrm{b}}^{-1}$ taken at a center-of-mass energy of 3.773\,GeV with the BESIII detector operated at the BEPCII…

Observation of $\ddot{I}ˆ(3686)\to K^{-}\hat{I}›(1520)\bar{\hat{I}}{ž}^{+}+c.c.$

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

Based on $(2712.4\pm 14.3)\times 10^6$ $\ddot{I}ˆ(3686)$ events collected at the BESIII detector operating at the BEPCII collider, we present the first observation of the decay $ψ(3686)…

Search for $D^0\to {\hat{I}}^3{\hat{I}}^3$ and improved measurement of the branching fraction for $D^0\to \ddot{I}{€}^0\ddot{I}{€}^0$

BESIII Collaboration, M. Ablikim, M. N. Achasov +412

Using $2.92$ fb${}^{-1}$ of electron-positron annihilation data collected at $\sqrt{s}=3.773$~GeV with the BESIII detector, we report the results of a search for the flavor-changin…

Observation of an Altered $a_0(980)$ Line shape in $D^{+}\to \ddot{I}{€}^{+}\hat{I}\cdot \hat{I}\cdot$

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

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

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…

First measurements of the branching fractions of $J/\ddot{I}ˆ\to \hat{I}{ž}^0\bar{\hat{I}}›K_S^0+c.c.$, $J/\ddot{I}ˆ\to \hat{I}{ž}^0\bar{\hat{I}}{\pounds }^0{K}_S^0+c.c.$, and $J/\ddot{I}ˆ\to \hat{I}{ž}^0\bar{\hat{I}}{\pounds }^{-}{K}^{+}+c.c.$

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

By analyzing $(10087\pm 44)\times 10^6$ $J/\ddot{I}ˆ$ events collected with the BESIII detector at the BEPCII, the decays $J/\ddot{I}ˆ\to \hat{I}{ž}^0\bar{\hat{I}}›K_S^0+c.c.$, $J/\ddot{I}ˆ\to \hat{I}{ž}^0\bar{\hat{I}}{\pounds }^0{K}_S^0+c.c.$…

Observation of $D\to {\bar{K}}_1(1270)\hat{I}{¼}^{+}\hat{I}{½}_{\hat{I}}¼$ and test of lepton flavor universality with $D\to {\bar{K}}_1(1270){\ell }^{+}\hat{I}{½}_{\ell }$

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

By analyzing 7.93 $\mathrm{f}{\mathrm{b}}^{-1}$ 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…

Mu2e Conceptual Design Report

The Mu2e Project, Collaboration, : +225

Mu2e at Fermilab will search for charged lepton flavor violation via the coherent conversion process mu- N --> e- N with a sensitivity approximately four orders of magnitude better…

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

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

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

Precise measurement of the form factors in $D^0\to K^{\ast }(892{)}^{-}\hat{I}{¼}^{+}\hat{I}{½}_{\hat{I}}¼$ and test of lepton universality with $D^0\to K^{\ast }(892{)}^{-}{\ell }^{+}\hat{I}{½}_{\ell }$ decays

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

We report a study of the semileptonic decay $D^0\to {\bar{K}}^0\ddot{I}{€}^{-}\hat{I}{¼}^{+}\hat{I}{½}_{\hat{I}}¼$ based on a sample of $7.9{\mathrm{fb}}^{-1}$ of $e^{+}{e}^{-}$ annihilation data collected at a center…

Study of $\ddot{I}{‡}_{cJ}$ decaying into $\ddot{I}•$ $K^{\ast }(892)$ $\bar{K}$

M. Ablikim, M. N. Achasov, X. C. Ai +409

Using a data sample of 106 million $\ddot{I}ˆ(3686)$ events collected with the BESIII detector operated at the BEPCII storage ring, we study for the first time the decay $χ_{cJ}\toϕK^{0…

Study of $e^{+}{e}^{-}\to \ddot{I}‰\ddot{I}{‡}_{cJ}$ at center-of-mass energies from 4.21 to 4.42 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +405

Based on data samples collected with the BESIII detector at the BEPCII collider at 9 center-of-mass energies from 4.21 to 4.42 GeV, we search for the production of $e^+e^-\to ωχ_…

The DArk Matter Particle Explorer mission

J. Chang, G. Ambrosi, Q. An +160

The DArk Matter Particle Explorer (DAMPE), one of the four scientific space science missions within the framework of the Strategic Pioneer Program on Space Science of the Chinese A…

Observation of Three Resonant Structures in the Cross Section of $e^{+}{e}^{-}\to \ddot{I}{€}^{+}\ddot{I}{€}^{-}{h}_c$

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

Using $e^{+}{e}^{-}$ collision data collected with the BESIII detector operating at the Beijing Electron Positron Collider, the cross section of $e^{+}{e}^{-}\to \ddot{I}{€}^{+}\ddot{I}{€}^{-}{h}_c$ is measured at 5…

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

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

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

Measurement of higher-order multipole amplitudes in $\ddot{I}ˆ(3686)\to {\hat{I}}^3\ddot{I}{‡}_{c1,2}$ with $\ddot{I}{‡}_{c1,2}\to {\hat{I}}^{3}J/\ddot{I}ˆ$ and search for the transition $\hat{I}{\cdot }_c(2S)\to {\hat{I}}^{3}J/\ddot{I}ˆ$

M. Ablikim, M. N. Achasov, X. C. Ai +424

Using 106~million $\ddot{I}ˆ(3686)$ events collected with the BESIII detector, we measure multipole amplitudes for the decay $\ddot{I}ˆ(3686)\to {\hat{I}}^3\ddot{I}{‡}_{c1,2}\to {\hat{I}}^3{\hat{I}}^{3}J/\ddot{I}ˆ$ beyond the dominan…

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

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

Using $(10087\pm 44)\times 10^6$$J/\ddot{I}ˆ$ events collected with the BESIII detector operating at the BEPCII storage ring in $2009$, $2012$, $2018$, and $2019$, we perform a search for…

Observation of $e^{+}{e}^{-}\to \hat{I}\cdot Y(2175)$ at center-of-mass energies above 3.7$\sim$GeV

M. Ablikim, M. N. Achasov, S. Ahmed +426

The state $Y(2175)$ is observed in the process $e^{+}{e}^{-}\to \hat{I}\cdot Y(2175)$ at center-of-mass energies between 3.7 and 4.6$\sim$GeV with a statistical significance larger than $10\ddot{I}ƒ$ us…

Search for $\ddot{I}ˆ(3686)\to {\hat{I}}^3\hat{I}{\cdot }_c(\hat{I}\cdot (1405))\to {\hat{I}}^3\ddot{I}{€}^{+}\ddot{I}{€}^{-}\ddot{I}{€}^0$

BESIII collaboration, M. Ablikim, M. N. Achasov +438

Using a sample of $448.1\times 10^6$ $\ddot{I}ˆ(3686)$ events collected with the BESIII detector, a search for the isospin violating decay $\hat{I}{\cdot }_c\to \ddot{I}{€}^{+}\ddot{I}{€}^{-}\ddot{I}{€}^0$ via $ψ(3686)\toÎ…

Experiments conducted in the burning plasma regime with inertial fusion implosions

J. S. Ross, J. E. Ralph, A. B. Zylstra +149

An experimental program is currently underway at the National Ignition Facility (NIF) to compress deuterium and tritium (DT) fuel to densities and temperatures sufficient to achiev…

Measurement of the integrated luminosity and the center-of-mass energy of the data taken by BESIII at $\sqrt{s}=2.125$ GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +322

To study the nature of the state $Y(2175)$, a dedicated data set of $e^{+}{e}^{-}$ collision data was collected at the center-of-mass energy of 2.125 GeV with the BESIII detector at the…

Determination of the number of $J/\ddot{I}ˆ$ events with inclusive $J/\ddot{I}ˆ$ decays

M. Ablikim, M. N. Achasov, X. C. Ai +405

A measurement of the number of $J/\ddot{I}ˆ$ events collected with the BESIII detector in 2009 and 2012 is performed using inclusive decays of the $J/\ddot{I}ˆ$ . The number of $J/\ddot{I}ˆ$ events tak…

Search for C-parity violation in $J/\ddot{I}ˆ\to {\hat{I}}^3{\hat{I}}^3$ and ${\hat{I}}^3\ddot{I}•$

BESIII Collaboration, M. Ablikim, M. N. Achasov +391

Using $1.06\times 10^8$ $\ddot{I}ˆ(3686)$ events recorded in $e^{+}{e}^{-}$ collisions at $\sqrt{s}=$ 3.686 GeV with the BESIII at the BEPCII collider, we present searches for C-parity viola…

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…

Partial wave analysis of $J/\ddot{I}ˆ\to {\hat{I}}^3\hat{I}\cdot \hat{I}\cdot$

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

Based on a sample of $2.25\times 10^8$ $J/\ddot{I}ˆ$ events collected with the BESIII detector at BEPCII, a full partial wave analysis on $J/\ddot{I}ˆ\to {\hat{I}}^3\hat{I}\cdot \hat{I}\cdot$ was performed using the relativ…

Evidence for the Direct Two-Photon Transition from $\ddot{I}ˆ(3686)$ to $J/\ddot{I}ˆ$

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

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

Measurement of the center-of-mass energies at BESIII via the di-muon process

M. Ablikim, M. N. Achasov, X. C. Ai +407

From 2011 to 2014, the BESIII experiment collected about 5 fb${}^{-1}$ data at center-of-mass energies around 4 GeV for the studies of the charmonium-like and higher excited charmoni…

Measurement of the Born cross section for $e^{+}{e}^{-}\to p{K}^{-}{K}^{-}\bar{\hat{I}}{ž}^{+}$ at $\sqrt{s}=$ 3.5-4.9 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +695

Using $e^{+}{e}^{-}$ collision data corresponding to a total integrated luminosity of 20 ${\mathrm{fb}}^{-1}$ collected with the BESIII detector at the BEPCII collider, we present a measurem…

Observation of the electromagnetic radiative decays of the \boldmath{$\hat{I}›(1520)$} and \boldmath{$\hat{I}›(1670)$} to \boldmath{${\hat{I}}^3\hat{I}{\pounds }^0$}

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

Using $(10087\pm 44)\times 10^6$ $J/\ddot{I}ˆ$ events collected with the BESIII detector, we report the first observation of the electromagnetic radiative decays of the $\hat{I}›(1520)$ and $Λ(…

Observation of the decay $\ddot{I}ˆ(3686)\to \hat{I}{\pounds }^0\bar{\hat{I}}{\pounds }^0\ddot{I}‰$

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

Using a dataset of $(27.12\pm 0.14)\times 10^8$ $\ddot{I}ˆ(3686)$ events collected by the BESIII detector operating at the BEPCII collider, we report the first observation of the decay…

Measurement of the cosmic ray nickel energy spectrum from 10 GeV/n to 2 TeV/n with the DAMPE

F. Alemanno, Q. An, P. Azzarello +144

Nickel, one of the most tightly bound nuclei alongside iron, is the most abundant heavy element beyond iron in cosmic rays. With DAMPE's excellent charge resolution and broad energ…

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

The BESIII, LHCb Collaborations, : +1903

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

Observation of $\hat{I}{\cdot }_c\to p\bar{p}\hat{I}\cdot$ via $\ddot{I}ˆ(3686)\to {\hat{I}}^{3}p\bar{p}\hat{I}\cdot$

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…

Search for the radiative decays $D^{+}\to {\hat{I}}^3\ddot{I}{}^{+}$ and $D^{+}\to {\hat{I}}^3{K}^{\ast +}$

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

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

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

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

Using $(106\pm 4)\times 10^6$ $\psip$ events accumulated with the BESIII detector at the BEPCII $e^{+}{e}^{-}$ collider, we present measurements of the branching fractions for psi' decays…

Study of the decays $D^{+}\to \hat{I}{\cdot }^{(\prime )}{e}^{+}\hat{I}{½}_e$

M. Ablikim, M. N. Achasov, S. Ahmed +442

The charm semileptonic decays $D^{+}\to \hat{I}\cdot e^{+}\hat{I}{½}_e$ and $D^{+}\to \hat{I}{\cdot }^{\prime }{e}^{+}\hat{I}{½}_e$ are studied with a sample of $e^{+}{e}^{-}$ collision data corresponding to an integrated luminosity of 2.93 fb…

Study of $\ddot{I}•\to K\bar{K}$ in the amplitude analysis of $D^{+}\to K_S^0{K}_L^0\ddot{I}{€}^{+}$

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

We present the first amplitude analysis and branching fraction measurement of $D^{+}\to K_S^0{K}_L^0\ddot{I}{€}^{+}$ decay. The analysis uses a dataset corresponding to an in…

Measurements of Normalized Differential Cross Sections of Inclusive $\hat{I}\cdot$ 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 $e^{+}{e}^{-}\to \hat{I}\cdot +X$, normalized by the tot…

Two-photon widths of the $\ddot{I}{‡}_{c0,2}$ states and helicity analysis for $χ_{c2}\arγγ$}

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

Based on a data sample of 106 M $\ddot{I}{ˆ}^{\prime }$ events collected with the BESIII detector, the decays $ψ^{\prime}\arγχ_{c0, 2}$,$χ_{c0, 2}\arγγ$ are studied to determine the tw…

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

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

Using $(10087\pm 44)\times 10^6$ $J/\ddot{I}ˆ$ events collected with the BESIII detector, we perform the first amplitude analysis of the process $J/\ddot{I}ˆ\to {\hat{I}}^3\hat{I}\cdot \ddot{I}{€}^0$. The decay is domina…

Evidence for $e^{+}{e}^{-}\to {\hat{I}}^3\ddot{I}{‡}_{c1,2}$ at center-of-mass energies from 4.009 to 4.360 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +405

Using data samples collected at center-of-mass energies of $\sqrt{s}$ = 4.009, 4.230, 4.260, and 4.360 GeV with the BESIII detector operating at the BEPCII collider, we perform a s…

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

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

Based on $(106.41\pm 0.86)\times 10^6$ $\ddot{I}ˆ(3686)$ events collected with the BESIII detector at the BEPCII collider, the branching fractions of $\ddot{I}ˆ(3686)\to \ddot{I}{€}^{+}\ddot{I}{€}^{-}J/\ddot{I}ˆ$, $J/Ï…

Study of $\hat{I}\cdot (1475)$ and $X(1835)$ in radiative $J/\ddot{I}ˆ$ decays to ${\hat{I}}^3\ddot{I}•$

BESIII Collaboration, M. Ablikim, M. N. Achasov +428

The decay $J/\ddot{I}ˆ\to {\hat{I}}^3{\hat{I}}^3\ddot{I}•$ is studied using a sample of $1.31\times 10^9$ $J/\ddot{I}ˆ$ events collected with the BESIII detector. Two structures around 1475 MeV/c${}^2$ and 1835…

Observation of $e^{+}{e}^{-}\to D_s^{+}\overline{D}{}^{(\ast )0}{K}^{-}$ and study of the $P$-wave $D_s$ mesons

BESIII Collaboration, M. Ablikim, M. N. Achasov +453

Studies of $e^{+}{e}^{-}\to D_s^{+}\overline{D}{}^{(\ast )0}{K}^{-}$ and the $P$-wave charmed-strange mesons are performed based on an $e^{+}{e}^{-}$ collision data sample corresponding to an integrat…

Rejuvenation of metallic glasses under high pressure

C. Wang, Z. Z. Yang, T. Ma +11

Modulating energy states of metallic glasses (MGs) is significant in understanding the nature of glasses and control their properties. In this study, we show that rejuvenation in e…

Study of $\hat{I}\cdot \to \ddot{I}{€}^{+}\ddot{I}{€}^{-}{l}^{+}{l}^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +639

Using a sample of $(10087\pm 44)\times 10^6$ $J/\ddot{I}ˆ$ events accumulated with the BESIII detector, we analyze the decays $\hat{I}\cdot \to \ddot{I}{€}^{+}\ddot{I}{€}^{-}{l}^{+}{l}^{-}$ ($l=e$ or $\hat{I}¼$) via the process…

First observation of the isospin violating decay $J/\ddot{I}ˆ\to \hat{I}›\bar{\hat{I}}{\pounds }^0+c.c.$

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

Using a sample of $(225.2\pm 2.8)\times 10^6$ $J/\ddot{I}ˆ$ events collected with the BESIII detector, we present results of a study of $J/\ddot{I}ˆ\to {\hat{I}}^3\hat{I}›\bar{\hat{I}}›$ and report the first o…

Observation of $\ddot{I}ˆ(3686)\to \hat{I}{\cdot }^{\prime }{e}^{+}{e}^{-}$

M. Ablikim, M. N. Achasov, S. Ahmed +454

Using a data sample of $448.1\times 10^6$ $\ddot{I}ˆ(3686)$ events collected with the BESIII detector at the BEPCII collider, we report the first observation of the electromagnetic Dalit…

Measurements of absolute branching fractions for $D$ mesons decays into two pseudoscalar mesons

M. Ablikim, M. N. Achasov, S. Ahmed +431

Using a data sample of $e^{+}{e}^{-}$ collision data with an integrated luminosity of 2.93 fb${}^{-1}$ taken at the center-of-mass energy $\sqrt{s}=3.773$~GeV with the BESIII detector oper…

Search for lepton number violating decays of $D_s^{+}\to h^{-}{h}^0{e}^{+}{e}^{+}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +655

Based on 7.33 fb${}^{-1}$ of $e^{+}{e}^{-}$ collision data collected by the BESIII detector operating at the BEPCII collider at center-of-mass energies from 4.128 to 4.226 GeV, a search fo…

Measurements of the absolute branching fractions for $D_s^{+}\to \hat{I}\cdot e^{+}\hat{I}{½}_e$ and $D_s^{+}\to \hat{I}{\cdot }^{\prime }{e}^{+}\hat{I}{½}_e$

M. Ablikim, M. N. Achasov, X. C. Ai +412

By analyzing 482 pb${}^{-1}$ of $e^{+}{e}^{-}$ collision data collected at $\sqrt{s}=4.009$ GeV with the BESIII detector at the BEPCII collider, we measure the absolute branching fractions…

Precise measurement of the $e^{+}{e}^{-}\to D_s^{+}{D}_s^{-}$ cross sections at center-of-mass energies from threshold to 4.95 GeV

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

Using the $e^{+}{e}^{-}$ collision data collected with the BESIII detector operating at the BEPCII collider, at center-of-mass energies from the threshold to $4.95$~GeV, we present preci…

Direct detection of a break in the teraelectronvolt cosmic-ray spectrum of electrons and positrons

G. Ambrosi, Q. An, R. Asfandiyarov +155

High energy cosmic ray electrons plus positrons (CREs), which lose energy quickly during their propagation, provide an ideal probe of Galactic high-energy processes and may enable…

Search for CP violation in $e^{+}{e}^{-}\to \ddot{I}ˆ(3770)\to D^0{\bar{D}}^0$ via $D->K_S^0\ddot{I}{€}^0$

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

Utilizing data sample of electron-positron collisions recorded with the BESIII detector at the center of mass energy of 3.773 GeV, corresponding to an integrated luminosity of 20.2…

Study of $D_s^{+}\to f_0(980)\ddot{I}{}^{+}$ and $\ddot{I}•\ddot{I}{€}^{+}$ decays through $D_s^{+}\to \ddot{I}{€}^{+}\ddot{I}{€}^{+}\ddot{I}{€}^{-}\ddot{I}{€}^0$

BESIII Collaboration, M. Ablikim, M. N. Achasov +655

We perform the first amplitude analysis of $D_s^{+}\to \ddot{I}{€}^{+}\ddot{I}{€}^{+}\ddot{I}{€}^{-}\ddot{I}{€}^0$ decays, based on data samples of electron-positron collisions recorded with the BESIII detector at center-of…

Measurement of Born Cross Sections for $e^{+}{e}^{-}\to K^{+}\hat{I}{ž}^0\bar{\hat{I}}{\pounds }^{-}$ at $\sqrt{s}=3.51-4.95$ GeV and Observation of $\ddot{I}ˆ(3770)\to K^{+}\hat{I}{ž}^0\bar{\hat{I}}{\pounds }^{-}$

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

Using 44.55 fb${}^{-1}$ of $e^{+}{e}^{-}$ 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^-…

Search for the lepton number violating process $J/\ddot{I}ˆ\to K^{+}{K}^{+}{e}^{-}{e}^{-}+c.c.$

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

Based on $(10087\pm 44)\times 10^6$ $J/\ddot{I}ˆ$ events collected with the BESIII detector, we search for the lepton number violating decay $J/\ddot{I}ˆ\to K^{+}{K}^{+}{e}^{-}{e}^{-}+c.c.$ for the first t…

Strong and electromagnetic amplitudes, direct $CP$ and isospin asymmetries in the decays $J/\ddot{I}ˆ\to K_S^0{K}^{+}\ddot{I}{€}^{-}+c.c.$

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

Using $e^{+}{e}^{-}$ annihilation data collected at 26 center-of-mass energy points between 3000.00 and $3119.88\text{MeV}$ with the BESIII detector, corresponding to a total integrated…

Improved measurements of branching fractions for $\hat{I}{\cdot }_c\to \ddot{I}•\ddot{I}•$ and $\ddot{I}‰\ddot{I}•$

M. Ablikim, M. N. Achasov, X. C. Ai +419

Using $(223.7\pm 1.4)\times 10^6$ J/$\ddot{I}ˆ$ events accumulated with the BESIII detector, we study $\hat{I}{\cdot }_c$ decays to $\ddot{I}•\ddot{I}•$ and $\ddot{I}‰\ddot{I}•$ final states. The branching fraction of $η_c\toϕϕ…

Measurement of e+e- --> D Dbar Cross Sections at the psi(3770) Resonance

BESIII Collaboration, M. Ablikim, M. N. Achasov +452

We report new measurements of the cross sections for the production of D Dbar final states at the psi(3770) resonance. Our data sample consists of an integrated luminosity of 2.93/…

Study of the decay ψ(3686) \to Σ^{0}\barΣ^{0}ϕ

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

Using $(27.12\pm 0.14)\times 10^8$ $\ddot{I}ˆ(3686)$ events collected with the BESIII detector operating at the BEPCII collider, the decay $\ddot{I}ˆ(3686)\to \hat{I}{\pounds }^0\bar{\hat{I}}{\pounds }^0\ddot{I}•$ is observed fo…

Precise Measurement of the $\ddot{I}{‡}_{c0}$ Resonance Parameters and Branching Fractions of $\ddot{I}{‡}_{c0,c2}\to \ddot{I}{€}^{+}\ddot{I}{€}^{-}/K^{+}{K}^{-}$

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

By analyzing a $\ddot{I}ˆ(3686)$ data sample containing $(107.7\pm 0.6)\times 10^6$ events taken with the BESIII detector at the BEPCII storage ring in 2009, the $\ddot{I}{‡}_{c0}$ resonance param…

Study of $f_1(1420)$ and $\hat{I}\cdot (1405)$ in the decay $J/\ddot{I}ˆ\to {\hat{I}}^3\ddot{I}{€}^0\ddot{I}{€}^0\ddot{I}{€}^0$

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

A partial-wave analysis is performed on the decay $J/\ddot{I}ˆ\to {\hat{I}}^3\ddot{I}{€}^0\ddot{I}{€}^0\ddot{I}{€}^0$ within the $\ddot{I}{€}^0\ddot{I}{€}^0\ddot{I}{€}^0$ invariant-mass region below 1.6 GeV$/c^2$, using $(10.09~\pm~0.04)…

Observation of a Doubly-strange Hyperon $\hat{I}ž(1720)$ in $J/\ddot{I}ˆ\to K^{-}\hat{I}{\pounds }^0\bar{\hat{I}}{ž}^{+}+c.c.$

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

Based on a sample of $(10087\pm 44)\times 10^6$ $J/\ddot{I}ˆ$ events collected with the BESIII detector at BEPCII, we report the first observation of the decay $J/ψ\rightarrow K^- Σ^0…

Measurement of absolute branching fraction of the inclusive decay $\hat{I}{›}_c^{+}\to \hat{I}›+X$

BESIII Collaboration, M. Ablikim, M. N. Achasov +446

Based on an $e^{+}{e}^{-}$ collision data sample corresponding to an integrated luminosity of 567${\mathrm{pb}}^{-1}$ taken at the center-of-mass energy of $\sqrt{s}=4.6$ GeV with the BESI…

Measurement of the $e^{+}{e}^{-}\to \hat{I}\cdot J/\ddot{I}ˆ$ cross section and search for $e^{+}{e}^{-}\to \ddot{I}{€}^{0}J/\ddot{I}ˆ$ at center-of-mass energies between 3.810 and 4.600~GeV

M. Ablikim, M. N. Achasov, X. C. Ai +409

Using data samples collected with the BESIII detector operating at the BEPCII collider at center-of-mass energies from 3.810 to 4.600 GeV, we perform a study of $e^{+}e^{-} \to ηJ…

Observation of the Singly Cabibbo-Suppressed Decay $D^{+}\to \ddot{I}‰\ddot{I}{€}^{+}$ and Evidence for $D^0\to \ddot{I}‰\ddot{I}{€}^0$

BESIII Collaboration, M. Ablikim, M. N. Achasov +414

Based on 2.93 fb${}^{-1}$ $e^{+}{e}^{-}$ collision data taken at center-of-mass energy of 3.773 GeV by the BESIII detector, we report searches for the singly Cabibbo-suppressed decays $D^{…

Confirmation of a charged charmoniumlike state $Z_c(3885{)}^{\mp }$ in $e^{+}{e}^{-}\to \ddot{I}{€}^{\pm }(D{\bar{D}}^{\ast }{)}^{\mp }$ with double $D$ tag

BESIII Collaboration, M. Ablikim, M. N. Achasov +400

We present a study of the process $e^{+}{e}^{-}\to \ddot{I}{€}^{\pm }(D{\bar{D}}^{\ast }{)}^{\mp }$ using data samples of 1092~pb${}^{-1}$ at $\sqrt{s}=4.23$~GeV and 826~pb${}^{-1}$ at $\sqrt{s}=4.26$~GeV collect…

Cross sections measurement of $e^{+}{e}^{-}\to \hat{I}ž(1530{)}^0\bar{\hat{I}}{ž}^0+c.c.$ and search for $\ddot{I}ˆ(3770)\to \hat{I}ž(1530{)}^0\bar{\hat{I}}{ž}^0+c.c.$

BESIII Colaboration, :, M. Ablikim +681

Using $e^{+}{e}^{-}$ collision data collected with the BESIII detector corresponding to an integrated luminosity of 44.2 fb${}^{-1}$, we measure the Born cross sections for the process $e^…

Search for $e^{+}{e}^{-}\to \ddot{I}•\ddot{I}{‡}_{c0}$ and $\ddot{I}•\hat{I}{\cdot }_{c2}(1D)$ at center-of-mass energies from 4.47 to 4.95 GeV

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

Utilizing a data set of $6.7$ fb${}^{-1}$ from electron-positron collisions recorded by the BESIII detector at the BEPCII storage ring, a search is conducted for the processes $e^{+}…

Measurement of the form factors in the decay $D^{+}\to \ddot{I}‰e^{+}\hat{I}{½}_e$ and search for the decay $D^{+}\to \ddot{I}•e^{+}\hat{I}{½}_e$

M. Ablikim, M. N. Achasov, X. C. Ai +398

Using 2.92 fb${}^{-1}$ of electron-positron annihilation data collected at a center-of-mass energy of $\sqrt{s}=3.773$ GeV with the BESIII detector, we present an improved measureme…

Improved measurement of absolute branching fraction of the inclusive decay $\hat{I}{›}_c^{+}\to K_S^{0}X$

BESIII Collaboration, M. Ablikim, M. N. Achasov +676

By analyzing $4.5$ fb${}^{-1}$ of $e^{+}{e}^{-}$ collision data accumulated with the BESIII detector at center-of-mass energies ranging from $4599.53$ MeV to $4698.82$ MeV, we report t…

Measurements of the branching fractions of the $P$-wave charmonium spin-singlet state $h_c{(}^1{P}_1)\to h^{+}{h}^{-}\ddot{I}{€}^0/\hat{I}\cdot$

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

Based on $(2712.4\pm 14.3)\times 10^6$ $\ddot{I}ˆ(3686)$ events, we investigate four hadronic decay modes of the $P$-wave charmonium spin-singlet state $h_c{(}^1{P}_1)\to h^{+}{h}^{-}\ddot{I}{€}^0/\hat{I}\cdot$ (…

Study of $e^{+}{e}^{-}\to p\bar{p}$ in the vicinity of $\ddot{I}ˆ(3770)$

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

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

Study of the $\ddot{I}{‡}_{cJ}\to \hat{I}›\bar{\hat{I}}›\hat{I}{\cdot }^{\prime }$ decays

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

Using a data sample of $(2.712\pm 0.014)\times 10^9$ $\ddot{I}ˆ(3686)$ events collected with the BESIII detector at the BEPCII collider, we investigate the decays $χ_{cJ} \rightarrow Λ\…

Search for $\hat{I}{\cdot }_1(1855)$ in $\ddot{I}{‡}_{cJ}\to \hat{I}\cdot \hat{I}\cdot \hat{I}{\cdot }^{\prime }$ decays

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

Based on a sample of $2.7\times 10^9$ $\ddot{I}ˆ(3686)$ events collected by the BESIII detector operating at the BEPCII collider, an analysis of the decay $ψ(3686)\toγχ_{cJ}, χ_{cJ}\…

Measurement of the branching fraction of $\hat{I}\cdot \to \hat{I}{¼}^{+}\hat{I}{¼}^{-}$ and search for $\hat{I}\cdot \to e^{+}{e}^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +702

We analyze the decay of $\hat{I}\cdot \to {\ell }^{+}{\ell }^{-}(\ell =e,\hat{I}¼)$ via $J/\ddot{I}ˆ\to {\hat{I}}^3\hat{I}{\cdot }^{\prime }$ and $\hat{I}{\cdot }^{\prime }\to \ddot{I}{€}^{+}\ddot{I}{€}^{-}\hat{I}\cdot$, based on (10087 $\pm$ 44) $\times$ 10${}^6$ $J/\ddot{I}ˆ$ event…

Observation of $J/\ddot{I}ˆ\to p\bar{p}{a}_0(980)$ at BESIII

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

Using $2.25\times 10^8$ $J/\ddot{I}ˆ$ events collected with the BESIII detector at the BEPCII storage rings, we observe for the first time the process $J/ψ\rightarrow p\bar{p}a_{0}(980)…

Study of $J/\ddot{I}ˆ$ and $\ddot{I}ˆ(3686)\to \hat{I}\pounds (1385{)}^0\bar{\hat{I}}\pounds (1385{)}^0$ and $\hat{I}{ž}^0\bar{\hat{I}}{ž}^0$

BESIII Collaboration, M. Ablikim, M. N. Achasov +426

We study the decays of $J/\ddot{I}ˆ$ and $\ddot{I}ˆ(3686)$ to the final states $\hat{I}\pounds (1385{)}^0\bar{\hat{I}}\pounds (1385{)}^0$ and $\hat{I}{ž}^0\bar{\hat{I}}{ž}^0$ based on a single baryon tag method using data samples of $(131…

Search for the Radiative Leptonic Decay $D^{+}\to {\hat{I}}^3{e}^{+}\hat{I}{½}_e$

The BESIII Collaboration, M. Ablikim, M. N. Achasov +428

Using an electron-positron collision data sample of 2.93 fb${}^{-1}$ collected at a center-of-mass energy of $\sqrt{s}=3.773$ GeV with the BESIII detector, we present the first searc…

First study of antihyperon-nucleon scattering $\bar{\hat{I}}›p\to \bar{\hat{I}}›p$ and measurement of $\hat{I}›p\to \hat{I}›p$ cross section

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

Using $(10.087\pm 0.044)\times 10^9$ $J/\ddot{I}ˆ$ events collected with the BESIII detector at the BEPCII storage ring, the processes $\hat{I}›p\to \hat{I}›p$ and $\bar{\hat{I}}›p\to \bar{\hat{I}}›p$…

Cross section measurement of $e^{+}{e}^{-}\to \ddot{I}{€}^0\ddot{I}{€}^0\ddot{I}ˆ(3686)$ from $\sqrt{s}=$ 4.008 GeV to 4.951 GeV

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

Using data samples with a total integrated luminosity of $22.1\mathrm{f}{\mathrm{b}}^{-1}$ at center-of-mass energies between 4.008 and 4.951~GeV collected with the BESIII detector, the cross sec…

Measurement of Born cross section of $e^{+}{e}^{-}\to \hat{I}{\pounds }^0\bar{\hat{I}}{\pounds }^0$ at $\sqrt{s}=3.50-4.95$ GeV

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

Using $e^{+}{e}^{-}$ collision data collected with the BESIII detector at the BEPCII collider at thirty-two center-of-mass energies from 3.50 to 4.95 GeV, corresponding to an integrated…

Measurements of branching fractions of $D^0\to K^{-}3\ddot{I}{€}^{+}2\ddot{I}{€}^{-}$, $D^0\to K^{-}2\ddot{I}{€}^{+}\ddot{I}{€}^{-}2\ddot{I}{€}^0$ and $D^{+}\to K^{-}3\ddot{I}{€}^{+}\ddot{I}{€}^{-}\ddot{I}{€}^0$

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

Utilizing $7.9\mathrm{f}{\mathrm{b}}^{-1}$ of $e^{+}{e}^{-}$ collision data taken with the BESIII detector at the center-of-mass energy of 3.773 GeV, we report the measurements of absolute branching f…

Measurement of the phase between strong and electromagnetic amplitudes of $J/\ddot{I}ˆ$ decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +442

Using 16 energy points of $e^{+}{e}^{-}$ annihilation data collected in the vicinity of the $J/\ddot{I}ˆ$ resonance with the BESIII detector and with a total integrated luminosity of around…

Search for the lepton number violating process $\hat{I}{ž}^{-}\to \hat{I}{\pounds }^{+}{e}^{-}{e}^{-}+c.c.$

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

We present a search for the lepton number violating decay $\hat{I}{ž}^{-}\to \hat{I}{\pounds }^{+}{e}^{-}{e}^{-}+c.c.$ with $(10087\pm 44)\times 10^6$ $J/\ddot{I}ˆ$ events collected by the BESIII detector at the BEPC…

Observation of a rare beta decay of the charmed baryon with a Graph Neural Network

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

The beta decay of the lightest charmed baryon $\hat{I}{›}_c^{+}$ provides unique insights into the fundamental mechanism of strong and electro-weak interactions, serving as a testbed for inv…

Observation of a neutral charmoniumlike state $Z_c(4025{)}^0$ in $e^{+}{e}^{-}\to (D^{\ast }{\bar{D}}^{\ast }{)}^0\ddot{I}{€}^0$

BESIII collaboration, M. Ablikim, M. N. Achasov +414

We report a study of the process $e^{+}{e}^{-}\to (D^{\ast }{\bar{D}}^{\ast }{)}^0\ddot{I}{€}^0$ using $e^{+}{e}^{-}$ collision data samples with integrated luminosities of $1092{\mathrm{pb}}^{-1}$ at $\sqrt{…

Search for the radiative transitions $\ddot{I}ˆ(3770)\to {\hat{I}}^3\hat{I}{\cdot }_c$ and ${\hat{I}}^3\hat{I}{\cdot }_c(2S)$

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

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

Search for a bound state of $\hat{I}{›}_c\bar{\hat{I}}{\pounds }_c$ near threshold

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

We search for a possible $\hat{I}{›}_c{\overline{\hat{I}\pounds }}_c$ bound state, denoted as $H_c^{\pm }$, via the $e^{+}{e}^{-}\to \ddot{I}{€}^{+}\ddot{I}{€}^{-}\hat{I}{›}_c^{+}\bar{\hat{I}}{›}_c^{-}$ process for the first time. T…

Search for the lepton number violation decay $\ddot{I}‰\to \ddot{I}{€}^{+}\ddot{I}{€}^{+}{e}^{-}{e}^{-}+c.c.$

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

The lepton number violation decay $\ddot{I}‰\to \ddot{I}{€}^{+}\ddot{I}{€}^{+}{e}^{-}{e}^{-}+c.c.$ is searched for via $J/\ddot{I}ˆ\to \ddot{I}‰\hat{I}\cdot$ using a data sample of $(1.0087\pm 0.0044)\times 10^{10}$ $J/\ddot{I}ˆ$ events collec…

Study of the decay $D^0\to \ddot{I}(770{)}^{-}{e}^{+}\hat{I}{½}_e$

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

We present a study of the semileptonic decay $D^0\to \ddot{I}{€}^{-}\ddot{I}{€}^0{e}^{+}\hat{I}{½}_e$ using an $e^{+}{e}^{-}$ annihilation data sample of $7.93{\mathrm{fb}}^{-1}$ collected at the center-of-m…

Measurement of the $\hat{I}\cdot$ transition form factor through $\hat{I}{\cdot }^{\prime }\to \ddot{I}{€}^{+}\ddot{I}{€}^{-}\hat{I}\cdot$ decay