Search for a Light Sterile Neutrino at Daya Bay

F. P. An, A. B. Balantekin, H. R. Band +230

A search for light sterile neutrino mixing was performed with the first 217 days of data from the Daya Bay Reactor Antineutrino Experiment. The experiment's unique configuration of…

Search for the semileptonic decays $D_s^{+}\to K_1(1270{)}^0{e}^{+}\hat{I}{½}_e$ and $D_s^{+}\to b_1(1235{)}^0{e}^{+}\hat{I}{½}_e$

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

By analyzing 7.33\,fb${}^{-1}$ of $e^{+}{e}^{-}$ collision data collected at center-of-mass energies between 4.128 and 4.226 GeV with the BESIII detector, we search for the semileptonic de…

Measurement of the Integrated Luminosities of Cross-section Scan Data Samples Around the $\ddot{I}ˆ(3770)$ Mass Region

M. Ablikim, M. N. Achasov, S. Ahmed +460

To investigate the nature of the $\ddot{I}ˆ(3770)$ resonance and to measure the cross section for $e^{+}{e}^{-}\to D\bar{D}$, a cross-section scan data sample, distributed among 41 center-of-m…

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)…

A new measurement of antineutrino oscillation with the full detector configuration at Daya Bay

Daya Bay Collaboration, F. P. An, A. B. Balantekin +214

We report a new measurement of electron antineutrino disappearance using the fully-constructed Daya Bay Reactor Neutrino Experiment. The final two of eight antineutrino detectors w…

Cross section measurements of $e^{+}{e}^{-}\to \ddot{I}‰\ddot{I}{‡}_{c0}$ from $\sqrt{s}=$4.178 to 4.278 GeV

M. Ablikim, M. N. Achasov, P. Adlarson +474

The cross section of the process $e^{+}{e}^{-}\to \ddot{I}‰\ddot{I}{‡}_{c0}$ is measured at center-of-mass energies from $\sqrt{s}=$ 4.178 to 4.278 GeV using a data sample of 7 fb${}^{-1}$ colle…

Ultra-high-energy ${\hat{I}}^3$-ray emission associated with the tail of a bow-shock pulsar wind nebula

Zhen Cao, F. Aharonian, Y. X. Bai +292

In this study, we present a comprehensive analysis of an unidentified point-like ultra-high-energy (UHE) ${\hat{I}}^3$-ray source, designated as 1LHAASO J1740+0948u, situated in the vicinit…

Measurement of the Cross Section for $e^{+}{e}^{-}\to$ hadrons at Energies from 2.2324 to 3.6710 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +557

Based on electron-positron collision data collected with the BESIII detector operating at the Beijing Electron Positron Collider II storage rings, the value of $R\equivσ(e^{+}e^{-…

Determination of Spin-parity Quantum Numbers for the Narrow Structure Near the $p\bar{\hat{I}}›$ Threshold in $e^{+}{e}^{-}\to p{K}^{-}\bar{\hat{I}}›+c.c.$

BESIII Collaboration, M. Ablikim, M. N. Achasov +593

A narrow structure in the $p\bar{\hat{I}}›$ system near the mass threshold, named as $X(2085)$, is observed in the process $e^{+}{e}^{-}\to p{K}^{-}\bar{\hat{I}}›$ with a statistical significance greater…

Observation of $D^{+}\to K_S^0{a}_0(980{)}^{+}$ in the amplitude analysis of $D^{+}\to K_S^0\ddot{I}{€}^{+}\hat{I}\cdot$

BESIII Collaboration, M. Ablikim, M. N. Achasov +615

We perform for the first time an amplitude analysis of the decay $D^{+}\to K_S^0\ddot{I}{€}^{+}\hat{I}\cdot$ and report the observation of the decay $D^{+}\to K_S^0{a}_0(980{)}^{+}$ using 2.93 fb…

Does or did the supernova remnant Cassiopeia A operate as a PeVatron?

Zhen Cao, F. Aharonian, Q. An +276

For decades, supernova remnants (SNRs) have been considered the prime sources of Galactic Cosmic rays (CRs). But whether SNRs can accelerate CR protons to PeV energies and thus dom…

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 the $J/\ddot{I}ˆ$ and $\ddot{I}ˆ(3686)$ decays into $\hat{I}\cdot \hat{I}{\pounds }^{+}\bar{\hat{I}}{\pounds }^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +572

The decays $J/\ddot{I}ˆ\to \hat{I}\cdot \hat{I}{\pounds }^{+}\bar{\hat{I}}\pounds {}^{-}$ and $\ddot{I}ˆ(3686)\to \hat{I}\cdot \hat{I}{\pounds }^{+}\bar{\hat{I}}\pounds {}^{-}$ are observed for the first time, using $(10087\pm 44)\times 10^6$ $J/\ddot{I}ˆ$ and $(448.1 \pm 2.9)\times 10…

First Observation of a Three-Resonance Structure in $e^{+}{e}^{-}\to$Nonopen Charm Hadrons

BESIII Collaboration, M. Ablikim, M. N. Achasov +619

We report the measurement of the inclusive cross sections for $e^{+}{e}^{-}$$\to$nOCH (where nOCH denotes non-open charm hadrons) with improved precision at center-of-mass (c.m.)…

Strangeness production via resonances in heavy-ion collisions at SIS energies

V. Steinberg, J. Staudenmaier, D. Oliinychenko +3

Production of strange hadrons in elementary and heavy-ion reactions is studied with the hadronic transport approach SMASH (Simulating Many Accelerated Strongly-interacting Hadrons)…

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…

Search for rare decay $J/\ddot{I}ˆ\to \ddot{I}•e^{+}{e}^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +462

Using a data sample of $448.1\times 10^6$ $\ddot{I}ˆ(3686)$ events collected at $\sqrt{s}=$ 3.686 GeV with the BESIII detector at the BEPCII, we search for the rare decay $J/ψ\to ϕe^+ e^…

Determination of strong-phase parameters in $D\to K_{S,L}^0\ddot{I}{€}^{+}\ddot{I}{€}^{-}$

M. Ablikim, M. N. Achasov, P. Adlarson +483

We report the most precise measurements to date of the strong-phase parameters between $D^0$ and ${\bar{D}}^0$ decays to $K_{S,L}^0\ddot{I}{€}^{+}\ddot{I}{€}^{-}$ using a sample of 2.93 fb${}^{-1}$ of $e^+e…

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…

Evidence for $Z_c^{\pm }$ decays into the $\ddot{I}{}^{\pm }\hat{I}{\cdot }_c$ final state

M. Ablikim, M. N. Achasov, S. Ahmed +458

We study $e^{+}{e}^{-}$ collisions with a $\ddot{I}{€}^{+}\ddot{I}{€}^{-}\ddot{I}{€}^0\hat{I}{\cdot }_c$ final state using data samples collected with the BESIII detector at center-of-mass energies $\sqrt{s}=4.226$, $4…

Search for the lepton number violation decay $\ddot{I}•\to \ddot{I}{€}^{+}\ddot{I}{€}^{+}{e}^{-}{e}^{-}$ via $J/\ddot{I}ˆ\to \ddot{I}•\hat{I}\cdot$

BESIII Collaboration, M. Ablikim, M. N. Achasov +596

Using $(1.0087\pm 0.0044)\times 10^{10}$ $J/\ddot{I}ˆ$ events collected by the BESIII detector at the BEPCII collider, we search for the lepton number violation decay $ϕ\to π^+ π^+ e^- e…

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 hyperon $\hat{I}”S=\hat{I}”Q$ violating decay $\hat{I}{ž}^0\to \hat{I}{\pounds }^{-}{e}^{+}\hat{I}{½}_e$

BESIII Collaboration, M. Ablikim, M. N. Achasov +566

Using a data sample of $(1.0087\pm 0.0044)\times 10^{10}$ $J/\ddot{I}ˆ$ decay events collected with the BESIII detector at the center-of-mass energy of $\sqrt{s}=3.097$ GeV, we present a se…

Search for $\bar{\hat{I}}›$-$\hat{I}›$ oscillations in the decay $J/\ddot{I}ˆ\to p{K}^{-}\bar{\hat{I}}›+c.c.$

BESIII Collaboration, M. Ablikim, M. N. Achasov +454

We report the first search for $\bar{\hat{I}}›$--$\hat{I}›$ oscillations in the decay $J/\ddot{I}ˆ\to p{K}^{-}\bar{\hat{I}}›+c.c.$ by analyzing $1.31\times 10^9$ $J/\ddot{I}ˆ$ events accumulated with the BESIII detect…

Observation of the Anomalous Shape of $X(1840)$ in $J/\ddot{I}ˆ\to {\hat{I}}^{3}3(\ddot{I}{€}^{+}\ddot{I}{€}^{-})$ Indicating a Second Resonance Near $p\bar{p}$ Threshold

BESIII Collaboration, M. Ablikim, M. N. Achasov +615

Using a sample of $(10087\pm 44)\times 10^6$ $J/\ddot{I}ˆ$ events, which is about 45 times larger than that was previously analyzed, a further investigation on the $J/ψ\rightarrow γ3(π^…

Strong orientation dependent spin-orbit torque in antiferromagnet Mn2Au

X. F. Zhou, J. Zhang, F. Li +8

Antiferromagnets with zero net magnetic moment, strong anti-interference and ultrafast switching speed have potential competitiveness in high-density information storage. Body cent…

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…

Search for baryon and lepton number violating decays $D^{+}\to \bar{\hat{I}}›(\bar{\hat{I}}{\pounds }^0)e^{+}$ and $D^{+}\to \hat{I}›(\hat{I}{\pounds }^0)e^{+}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +480

Using a 2.93 fb${}^{-1}$ data sample of electron-positron collisions taken with the BESIII detector at a center-of-mass energy of 3.773 GeV, which corresponds to $(8296\pm31\pm64)\ti…

Precision Measurement of the Decay $\hat{I}{\pounds }^{+}\to p{\hat{I}}^3$ in the Process $J/\ddot{I}ˆ\to \hat{I}{\pounds }^{+}\bar{\hat{I}}{\pounds }^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +593

Using $(10087\pm 44)\times 10^6$ $J/\ddot{I}ˆ$ events collected with the BESIII detector, the radiative hyperon decay $\hat{I}\pounds \to p{\hat{I}}^3$ is studied at an electron-positron collider exp…

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…

Measurement of the branching fraction and decay asymmetry of $\hat{I}›\to n{\hat{I}}^3$

BESIII Collaboration, M. Ablikim, M. N. Achasov +565

The radiative hyperon decay $\hat{I}›\to n{\hat{I}}^3$ is studied using $(10087\pm 44)\times 10^6$ $J/\ddot{I}ˆ$ events collected with the BESIII detector operating at BEPCII. The absolute branching frac…

Detection of two TeV gamma-ray outbursts from NGC 1275 by LHAASO

Zhen Cao, F. Aharonian, Axikegu +275

The Water Cherenkov Detector Array (WCDA) is one of the components of Large High Altitude Air Shower Observatory (LHAASO) and can monitor any sources over two-thirds of the sky for…

Observation of $a_0(1710{)}^{+}\to K_S^0{K}^{+}$ in study of the $D_s^{+}\to K_S^0{K}^{+}\ddot{I}{€}^0$ decay

BESIII Collaboration, M. Ablikim, M. N. Achasov +551

Using $e^{+}{e}^{-}$ annihilation data corresponding to an integrated luminosity of 6.32 fb${}^{-1}$ collected at center-of-mass energies between 4.178 GeV and 4.226 GeV with the BESIII de…

Measurement of the Energy-Dependent Electromagnetic Form Factors of a Charmed Baryon

BESIII Collaboration, M. Ablikim, M. N. Achasov +609

We study the process $e^{+}{e}^{-}\to \hat{I}{›}_c^{+}\bar{\hat{I}}{›}_c^{-}$ at twelve center-of-mass energies from $4.6119$ to $4.9509\mathrm{GeV}$ using data samples collected by the BESIII detec…

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(…

Evidence of cosmic-ray acceleration up to sub-PeV energies in the supernova remnant IC 443

Zhen Cao, F. Aharonian, Y. X. Bai +309

Supernova remnants (SNRs) have been considered as the primary contributors to cosmic rays (CRs) in our Galaxy. However, the maximum energy of particles that can be accelerated by s…

Measurement of the absolute branching fraction of the singly Cabibbo suppressed decay $\hat{I}{›}_c^{+}\to p\hat{I}{\cdot }^{\prime }$

BESIII Collaboration, M. Ablikim, M. N. Achasov +569

The singly Cabibbo suppressed decay $\hat{I}{›}_c^{+}\to p\hat{I}{\cdot }^{\prime }$ is measured using 4.5 ${\mathrm{fb}}^{-1}$ of $e^{+}{e}^{-}$ collision data collected at center-of-mass energies between 4.…

Cross section measurements of the $e^{+}{e}^{-}\to D^{\ast +}{D}^{\ast -}$ and $e^{+}{e}^{-}\to D^{\ast +}{D}^{-}$ processes at center-of-mass energies from 4.085 to 4.600 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +549

The Born cross sections of the $e^{+}{e}^{-}\to D^{\ast +}{D}^{\ast -}$ and $e^{+}{e}^{-}\to D^{\ast +}{D}^{-}$ processes are measured using $e^{+}{e}^{-}$ collision data collected with the BESIII experiment at cen…

The First LHAASO Catalog of Gamma-Ray Sources

Zhen Cao, F. Aharonian, Q. An +276

We present the first catalog of very-high energy and ultra-high energy gamma-ray sources detected by the Large High Altitude Air Shower Observatory (LHAASO). The catalog was compil…

Study of $\hat{I}{›}_c^{+}\to \hat{I}›\hat{I}{¼}^{+}\hat{I}{½}_{\hat{I}}¼$ and Test of Lepton Flavor Universality with $\hat{I}{›}_c^{+}\to \hat{I}›{\ell }^{+}\hat{I}{½}_{\ell }$ Decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +614

The measurement of the Cabibbo-favored semileptonic decay $\hat{I}{›}_c^{+}\to \hat{I}›\hat{I}{¼}^{+}\hat{I}{½}_{\hat{I}}¼$ is reported using $4.5{\mathrm{fb}}^{-1}$ of $e^{+}{e}^{-}$ annihilation data collected at center…

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…

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…

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…

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…

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…

Search for baryon and lepton number violating decays of $\hat{I}{ž}^0$ hyperons

BESIII Collaboration, M. Ablikim, M. N. Achasov +602

Using $(1.0087\pm 0.0044)\times 10^{10}$ $J/\ddot{I}ˆ$ events collected by the BESIII detector at the BEPCII collider, we report the first search for the baryon and lepton number violating…

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…

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…

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^-…

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…

First Measurements of $\ddot{I}{‡}_{cJ}\to \hat{I}{\pounds }^{-}\bar{\hat{I}}{\pounds }^{+}(J=0,1,2)$ Decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +484

We measured the branching fractions of the decays $\ddot{I}{‡}_{cJ}\to \hat{I}{\pounds }^{-}\bar{\hat{I}}{\pounds }^{+}$ for the first time using the final states $n\bar{n}\ddot{I}{€}^{+}\ddot{I}{€}^{-}$. The data sample exploited here is $…

Search for the decay $\hat{I}{\cdot }^{\prime }\to {\hat{I}}^3{\hat{I}}^3\hat{I}\cdot$

M. Ablikim, M. N. Achasov, P. Adlarson +479

Using a data sample of $1.31\times 10^{9}J/\ddot{I}ˆ$ events collected with the BESIII detector, a search for $\hat{I}{\cdot }^{\prime }\to {\hat{I}}^3{\hat{I}}^3\hat{I}\cdot$ via $J/\ddot{I}ˆ\to {\hat{I}}^3\hat{I}{\cdot }^{\prime }$ is performed for the first time. No signif…

Measurement of the cross sections for $e^{+}{e}^{-}\to \hat{I}\cdot \ddot{I}{€}^{+}\ddot{I}{€}^{-}$ at center-of-mass energies between 2.00 and 3.08 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +616

Using data samples collected at center-of-mass energies between 2.000 and 3.080 GeV with the BESIII detector operating at the BEPCII collider, a partial-wave analysis is performed…

Observation of $\ddot{I}ˆ(3686)\to \hat{I}ž(1530{)}^{-}\bar{\hat{I}}ž(1530{)}^{+}$ and $\hat{I}ž(1530{)}^{-}\bar{\hat{I}}{ž}^{+}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +475

Using 448.1 $\times$ $10^6$ $\ddot{I}ˆ(3686)$ events collected with the BESIII detector at BEPCII, we employ a single-baryon tagging technique to make the first observation of $ψ(3686)…

Precise Measurements of Branching Fractions for $D_s^{+}$ Meson Decays to Two Pseudoscalar Mesons

M. Ablikim, M. N. Achasov, P. Adlarson +483

We measure the branching fractions for seven $D_s^{+}$ two-body decays to pseudo-scalar mesons, by analyzing data collected at $\sqrt{s}=4.178\sim 4.226$ GeV with the BESIII detec…

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…

Measurements of Weak Decay Asymmetries of $\hat{I}{›}_c^{+}\to p{K}_S^0$, $\hat{I}›\ddot{I}{€}^{+}$, $\hat{I}{\pounds }^{+}\ddot{I}{€}^0$, and $\hat{I}{\pounds }^0\ddot{I}{€}^{+}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +476

Using $e^{+}{e}^{-}\to \hat{I}{›}_c^{+}\bar{\hat{I}}{›}_c^{-}$ production from a 567 pb${}^{-1}$ data sample collected by BESIII at 4.6 GeV, a full angular analysis is carried out simultaneously on the four deca…

Dalitz Plot Analysis of the Decay $\ddot{I}‰\to \ddot{I}{€}^{+}\ddot{I}{€}^{-}\ddot{I}{€}^0$

M. Ablikim, M. N. Achasov, S. Ahmed +461

Using a low-background sample of $2.6\times 10^5$ $J/\ddot{I}ˆ\to \ddot{I}‰\hat{I}\cdot (\ddot{I}‰\to \ddot{I}{€}^{+}\ddot{I}{€}^{-}\ddot{I}{€}^0,\hat{I}\cdot \to {\hat{I}}^3{\hat{I}}^3)$ events, about 5 times larger statistics than previous exp…

Limits on Active to Sterile Neutrino Oscillations from Disappearance Searches in the MINOS, Daya Bay, and Bugey-3 Experiments

Daya Bay, MINOS Collaborations, : +329

Searches for a light sterile neutrino have been performed independently by the MINOS and the Daya Bay experiments using the muon (anti)neutrino and electron antineutrino disappeara…

Tunneling anisotropic magnetoresistance driven by magnetic phase transition

X. Z. Chen, J. F. Feng, Z. C. Wang +16

The independent control of two magnetic electrodes and spin-coherent transport in magnetic tunnel junctions are strictly required for tunneling magnetoresistance, while junctions w…

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^{…

First observation of the decay $\ddot{I}{‡}_{cJ}\to \hat{I}{\pounds }^{+}\bar{p}{K}_S^0+c.c.(J=0,1,2)$

M. Ablikim, M. N. Achasov, P. Adlarson +478

Using E1 radiative transitions $\ddot{I}ˆ(3686)\to {\hat{I}}^3\ddot{I}{‡}_{cJ}$ from a sample of $(448.1\pm 2.9)\times 10^6$ $\ddot{I}ˆ(3686)$ events collected with the BESIII detector, the decays $χ_{cJ}\to…

Measurement of the $e^{+}{e}^{-}\to K_S^0{K}_L^0\ddot{I}{€}^0$ cross sections from $\sqrt{s}=$ 2.000 to 3.080 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +615

Based on $e^{+}{e}^{-}$ collision data collected at center-of-mass energies from 2.000 to 3.080 GeV by the BESIII detector at the BEPCII collider, a partial wave analysis is performe…

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^…

Discussion on phase ambiguity and multiple beam generation in coherent beam combining system

H. Jia, J. Zuo, Q. Bao +11

There exists the phase ambiguity problem in the coherent beam combining (CBC) system with centrosymmetric arrays, which means that multiple different piston aberrations may generat…

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…

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 $h_c{(}^1{P}_1)\to h^{+}{h}^{-}\ddot{I}{€}^0/\hat{I}\cdot$ (…

Spin-Energy Entanglement of a Time-Focused Neutron

J. C. Leiner, S. J. Kuhn, S. McKay +15

Intra-particle entanglement of individual particles such as neutrons could enable another class of scattering probes that are sensitive to entanglement in quantum systems and mater…

Measurement of $e^{+}{e}^{-}\to \hat{I}\cdot J/\ddot{I}ˆ$ Cross Section from $\sqrt{s}=$ 3.808 GeV to 4.951 GeV

BESIII Collaboration, M. Ablikim, M. N. Achasov +619

Using data samples with an integrated luminosity of 22.42 fb${}^{-1}$ collected by the BESIII detector operating at the BEPCII storage ring, we measure the cross sections of the $e^{…

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…

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)…

Measurement of the branching fraction of the doubly Cabibbo-suppressed decay $D^0\to K^{+}\ddot{I}{€}^{-}\ddot{I}{€}^0$ and search for $D^0\to K^{+}\ddot{I}{€}^{-}\ddot{I}{€}^0\ddot{I}{€}^0$

BESIII Collaboration, M. Ablikim, M. N. Achasov +548

Using $2.93\mathrm{f}{\mathrm{b}}^{-1}$ of $e^{+}{e}^{-}$ collision data collected at a center-of-mass energy of 3.773\,GeV with the BESIII detector, we present a measurement of the branching fraction…

Improved measurement of the absolute branching fraction of inclusive semileptonic $\hat{I}{›}_c^{+}$ decay

BESIII Collaboration, M. Ablikim, M. N. Achasov +563

Using $4.5{\mathrm{fb}}^{-1}$ of $e^{+}{e}^{-}$ annihilation data samples collected at center-of-mass energies ranging from 4.600 to 4.698 GeV with the BESIII detector at the BEPCII colli…

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…

Observation of the semileptonic decays $D^0\to K_S^0\ddot{I}{€}^{-}\ddot{I}{€}^0{e}^{+}\hat{I}{½}_e$ and $D^{+}\to K_S^0\ddot{I}{€}^{+}\ddot{I}{€}^{-}{e}^{+}\hat{I}{½}_e$

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

By analyzing $e^{+}{e}^{-}$ annihilation data corresponding to an integrated luminosity of 2.93 $\mathrm{f}{\mathrm{b}}^{-1}$ collected at a center-of-mass energy of 3.773 GeV with the \text{BESIII} det…

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

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

Based on a sample of $(1.0087\pm 0.0044)\times 10^{10}$ $J/\ddot{I}ˆ$ events collected at BESIII, the transition form factor of the $\hat{I}\cdot$ meson is extracted by analyzing $J/ψ\toγη',~η'\t…

Study of open-charm decays and radiative transitions of the X(3872)

M. Ablikim, M. N. Achasov, P. Adlarson +472

The processes $X(3872)\to D^{\ast 0}\overline{D^0}+c.c.,{\hat{I}}^{3}J/\ddot{I}ˆ,{\hat{I}}^3\ddot{I}ˆ(2S),$ and ${\hat{I}}^3{D}^{+}{D}^{-}$ are searched for in a $9.0\mathrm{f}{\mathrm{b}}^{-1}$ data sample collected at center-of-mass energies bet…

Observation of $\hat{I}{›}_c^{+}\to \hat{I}›a_0(980{)}^{+}$ and Evidence for $\hat{I}\pounds (1380{)}^{+}$ in $\hat{I}{›}_c^{+}\to \hat{I}›\ddot{I}{€}^{+}\hat{I}\cdot$

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

Based on $6.1{\mathrm{fb}}^{-1}$ of $e^{+}{e}^{-}$ annihilation data collected at center-of-mass energies from 4.600 to 4.843 GeV with the BESIII detector at the BEPCII collider, a partia…

Analysis of the dynamics of the decay $D^{+}\to K_S^0\ddot{I}{€}^0{e}^{+}\hat{I}{½}_e$