X. Tang

Observation of $e^{+} e^{-} \to K K ˉ J / I ¨ $ at center-of-mass energies from 4.189 to 4.600 GeV

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

We investigate the process $e^{+} e^{-} \to K K ˉ J / I ¨ $ at center-of-mass energies from 4.189 to 4.600 GeV using 4.7 fb $^{- 1}$ of data collected by the BESIII detector at…

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

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

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

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 rare decays $D \to h (h^{'}) e^{+} e^{-}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +455

We search for rare decays of $D$ mesons to hadrons accompany with an electron-positron pair (h(h') $e^{+} e^{-}$ ), using an $e^{+} e^{-}$ collision sample corresponding to an integrated lumin…

Observation of the Semileptonic Decay $D^{0} \to a_{0} (980)^{-} e^{+} I^½_{e}$ and Evidence for $D^{+} \to a_{0} (980)^{0} e^{+} I^½_{e}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +434

Using an $e^{+} e^{-}$ collision data sample of 2.93 fb $^{- 1}$ collected at a center-of-mass energy of 3.773 GeV by the BESIII detector at BEPCII, we report the observation of $D^0 \to…

Model-independent determination of the relative strong-phase difference between $D^{0}$ and $D ˉ^{0} \to K_{S, L}^{0} I ¨ ^{+} I ¨ ^{-}$ and its impact on the measurement of the CKM angle $I^^{3} / I ¨ _{3}$

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

Crucial inputs for a variety of $C P$ -violation studies can be determined through the analysis of pairs of quantum-entangled neutral $D$ mesons, which are produced in the decay of t…

Measurement of the Integrated Luminosities of Cross-section Scan Data Samples Around the $I ¨ (3770)$ Mass Region

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

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

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

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

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

Observation of $D^{0 (+)} \to K_{S}^{0} I ¨ ^{0 (+)} I^\cdot^{'}$ and improved measurement of $D^{0} \to K^{-} I ¨ ^{+} I^\cdot^{'}$

M. Ablikim, M. N. Achasov, S. Ahmed +459

By analyzing $2.93 f b^{- 1}$ of data taken at a center-of-mass energy of 3.773~GeV with the BESIII detector, we measure the branching fractions of the Cabibbo-favored hadronic…

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

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

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

Observation of $I ¨ (3686) \to e^{+} e^{-} I ¨ _{c J}$ and $I ¨ _{c J} \to e^{+} e^{-} J / I ¨ $

M. Ablikim, M. N. Achasov, X. C. Ai +420

Using $4.479 \times 1 0^{8}$ $I ¨ (3686)$ events collected with the BESIII detector, we search for the decays $I ¨ (3686) \to e^{+} e^{-} I ¨ _{c 0, 1, 2}$ and $Ï_{c0,1,2} \rightarrow…

Cross section measurements of $e^{+} e^{-} \to I ¨ I ¨ _{c 0}$ from $s =$ 4.178 to 4.278 GeV

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

The cross section of the process $e^{+} e^{-} \to I ¨ I ¨ _{c 0}$ is measured at center-of-mass energies from $s =$ 4.178 to 4.278 GeV using a data sample of 7 fb $^{- 1}$ colle…

Search for the weak decays $J / I ¨ \to D_{s}^{(*)} e I^½_{e}$

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

Using a sample of $2.25 \times 1 0^{8}$ $J / I ¨ $ events collected with the BESIII detector at the BEPCII collider, we search for the $J / I ¨ $ semi-leptonic weak decay $J/Ï\to D^{-}_{s} e^…

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

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

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

Amplitude analysis of $D^{+} \to K_{S}^{0} I ¨ ^{+} I ¨ ^{+} I ¨ ^{-}$

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

The decay $D^{+} \to K_{S}^{0} I ¨ ^{+} I ¨ ^{+} I ¨ ^{-}$ is studied with an amplitude analysis using a data set of 2.93${\mbox{\,fb}^{-1}}$ of $e^{+} e^{+}$ collisions at the $Ï(37…

Future Physics Programme of BESIII

M. Ablikim, M. N. Achasov, P. Adlarson +482

There has recently been a dramatic renewal of interest in the subjects of hadron spectroscopy and charm physics. This renaissance has been driven in part by the discovery of a plet…

cs.CL2026

MiroThinker-1.7 & H1: Towards Heavy-Duty Research Agents via Verification

MiroMind Team, S. Bai, L. Bing +39

We present MiroThinker-1.7, a new research agent designed for complex long-horizon reasoning tasks. Building on this foundation, we further introduce MiroThinker-H1, which extends…

Observation of the decay $X (3872) \to I ¨ ^{0} I ¨ _{c 1} (1 P)$

BESIII Collaboration, M. Ablikim, M. N. Achasov +468

Using a total of $9.0 fb^{- 1}$ of $e^{+} e^{-}$ collision data with center-of-mass energies between 4.15 and 4.30 GeV collected by the BESIII detector, we search for the proces…

Measurement of the absolute branching fraction of $D_{s 0}^{*\pm} (2317) \to I ¨ ^{0} D_{s}^{\pm}$

M. Ablikim, M. N. Achasov, S. Ahmed +427

The process $e^{+} e^{-} \to D_{s}^{*+} D_{s 0}^{*-} (2317) + c . c .$ is observed for the first time with the data sample of 567~pb $^{- 1}$ collected with the BESIII detector operating at the…

Study of Dynamics of $D^{0} \to K^{-} e^{+} I^½_{e}$ and $D^{0} \to I ¨ ^{-} e^{+} I^½_{e}$ Decays

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

In an analysis of a 2.92~fb $^{- 1}$ data sample taken at 3.773~GeV with the BESIII detector operated at the BEPCII collider, we measure the absolute decay branching fractions to be…

Amplitude Analysis and Branching Fraction Measurement of $D^{0} \to K^{-} I ¨ ^{+} I ¨ ^{0} I ¨ ^{0}$

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

Utilizing the dataset corresponding to an integrated luminosity of $2.93$ fb $^{- 1}$ at $s = 3.773$ GeV collected by the BESIII detector, we report the first amplitude analysis…

physics.ins-det2020

Optimization of the JUNO liquid scintillator composition using a Daya Bay antineutrino detector

Daya Bay, JUNO collaborations, : +646

To maximize the light yield of the liquid scintillator (LS) for the Jiangmen Underground Neutrino Observatory (JUNO), a 20 t LS sample was produced in a pilot plant at Daya Bay. Th…

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

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

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

Study of $I ¨ _{c J}$ decaying into $I ¨ $ $K^{*} (892)$ $K ˉ$

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

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

Study of $e^{+} e^{-} \to D^{+} D^{-} I ¨ ^{+} I ¨ ^{-}$ at center-of-mass energies from 4.36 to 4.60 GeV

M. Ablikim, M. N. Achasov, P. Adlarson +476

We report a study of the $e^{+} e^{-} \to D^{+} D^{-} I ¨ ^{+} I ¨ ^{-}$ process using $e^{+} e^{-}$ collision data samples with an integrated luminosity of $2.5 fb^{- 1}$ at center…

Study of $e^{+} e^{-} \to I ¨ I ¨ _{c J}$ 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 ÏÏ_…

Amplitude analysis of the $K_{S} K_{S}$ system produced in radiative $J / I ¨ $ decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +444

An amplitude analysis of the $K_{S} K_{S}$ system produced in radiative $J / I ¨ $ decays is performed using the $(1310.6 \pm 7.0) \times 1 0^{6}$ $J / I ¨ $ decays collected by the BESIII detec…

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

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

Using a data sample of $448.1 \times 1 0^{6}$ $I ¨ (3686)$ events collected at $s =$ 3.686 GeV with the BESIII detector at the BEPCII, we search for the rare decay $J/Ï\to Ïe^+ e^…

Search for the weak decay $I^\cdot^{'} \to K^{\pm} I ¨ ^{\mp}$ and precise measurement of the branching fraction $B (J / I ¨ \to I ¨ I^\cdot^{'})$

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

We present the first search for the rare decay of $I^\cdot^{'}$ into $K^{\pm} I ¨ ^{\mp}$ in $J / I ¨ \to I ¨ I^\cdot^{'}$ , using a sample of $1.3 \times 1 0^{9}$ $J / I ¨ $ events collected with the…

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

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 $D ˉ^{0}$ decays to $K_{S, L}^{0} I ¨ ^{+} I ¨ ^{-}$ using a sample of 2.93 fb $^{- 1}$ of $e^+e…

Observation of $I ¨ _{c 2} \to I^\cdot^{'} I^\cdot^{'}$ and $I ¨ _{c 0, 2} \to I^\cdot I^\cdot^{'}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +443

Using a sample of $447.9 \times 1 0^{6}$ $I ¨ (3686)$ events collected with the BESIII detector in 2009 and 2012, we study the decays $I ¨ _{c 0, 2} \to$ $I^\cdot^{'} I^\cdot^{'}$ and $I^\cdot I^\cdot^{'}$ . The decays $Ï_…

Observation of the leptonic decay $D^{+} \to I ¨ ^{+} I^½_{I ¨} $

BESIII Collaboration, M. Ablikim, M. N. Achasov +479

We report the first observation of $D^{+} \to I ¨ ^{+} I^½_{I ¨} $ with a significance of $5.1 I ¨ $ . We measure ${\cal B}(D^+\toÏ^+Î½_Ï) = (1.20\pm0.24_{\text{stat.}}\pm0.12_{\text{syst.}})\time…

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

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

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

Observation of the decays $I ¨ _{c J} \to I ¨ I ¨ I^\cdot$

BESIII Collaboration, M. Ablikim, M. N. Achasov +481

Using a data sample of $(448.1 \pm 2.9) \times 1 0^{6}$ $I ¨ (3686)$ decays collected by the BESIII detector at the Beijing Electron Positron Collider (BEPCII), we observe the decays $Ï_…

Measurement of higher-order multipole amplitudes in $I ¨ (3686) \to I^^{3} I ¨ _{c 1, 2}$ with $I ¨ _{c 1, 2} \to I^^{3} J / I ¨ $ and search for the transition $I^\cdot_{c} (2 S) \to I^^{3} J / I ¨ $

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

Using 106~million $I ¨ (3686)$ events collected with the BESIII detector, we measure multipole amplitudes for the decay $I ¨ (3686) \to I^^{3} I ¨ _{c 1, 2} \to I^^{3} I^^{3} J / I ¨ $ beyond the dominan…

Measurement of $B (I ¨ (3770) \to I^^{3} I ¨ _{c 1})$ and search for $I ¨ (3770) \to I^^{3} I ¨ _{c 2}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +411

We report a measurement of the branching fraction of $I ¨ (3770) \to I^^{3} I ¨ _{c 1}$ and search for the transition $I ¨ (3770) \to I^^{3} I ¨ _{c 2}$ based on 2.92~fb $^{- 1}$ of $e^{+} e^{-}$ data a…

hep-ex2021

Evidence for $Z_{c}^{\pm}$ decays into the $I ¨ ^{\pm} I^\cdot_{c}$ final state

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

We study $e^{+} e^{-}$ collisions with a $I ¨ ^{+} I ¨ ^{-} I ¨ ^{0} I^\cdot_{c}$ final state using data samples collected with the BESIII detector at center-of-mass energies $s = 4.226$ , $4…

Complete measurement of $I^$ electromagnetic form factors

M. Ablikim, M. N. Achasov, P. Adlarson +475

The exclusive process $e^{+} e^{-} \to I^ I^ˉ $ , with $I^ \to p I ¨ ^{-}$ and $I^ˉ \to p ˉ I ¨ ^{+}$ , has been studied at $s =$ 2.396 GeV for measurement of the $I^$ electric…

Observation of $I ¨ _{c 1}$ decays into vector meson pairs $I ¨ I ¨ $ , $I ¨ I ¨ $ , and $I ¨ I ¨ $

M. Ablikim, M. N. Achasov, L. An +319

Decays of $I ¨ _{c 1}$ to vector meson pairs $I ¨ I ¨ $ , $I ¨ I ¨ $ and $I ¨ I ¨ $ are observed for the first time using $(106 \pm 4) \times 1 0^{6}$ $\psip$ events accumulated at the BESIII detector a…

Observation of $e^{+} e^{-} \to I^\cdot Y (2175)$ 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 $e^{+} e^{-} \to I^\cdot Y (2175)$ at center-of-mass energies between 3.7 and 4.6 $\sim$ GeV with a statistical significance larger than $10 I ¨ $ us…

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

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

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

Measurement of the $e^{+} e^{-} \to I ¨ ^{+} I ¨ ^{-}$ Cross Section between 600 and 900 MeV Using Initial State Radiation

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

We extract the $e^{+} e^{-} \to I ¨ ^{+} I ¨ ^{-}$ cross section in the energy range between 600 and 900 MeV, exploiting the method of initial state radiation. A data set with an integrat…

Search for $I ¨ (3686) \to I^^{3} I^\cdot_{c} (I^\cdot (1405)) \to I^^{3} I ¨ ^{+} I ¨ ^{-} I ¨ ^{0}$

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

Using a sample of $448.1 \times 1 0^{6}$ $I ¨ (3686)$ events collected with the BESIII detector, a search for the isospin violating decay $I^\cdot_{c} \to I ¨ ^{+} I ¨ ^{-} I ¨ ^{0}$ via $Ï(3686)\toÎ…

quant-ph2004

Quantum key distribution with 1.25 Gbps clock synchronization

J. C. Bienfang, A. J. Gross, A. Mink +9

We have demonstrated the exchange of sifted quantum cryptographic key over a 730 meter free-space link at rates of up to 1.0 Mbps, two orders of magnitude faster than previously re…

Measurement of the integrated luminosity and the center-of-mass energy of the data taken by BESIII at $s = 2.125$ 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…

Measurements of absolute hadronic branching fractions of $I^_{c}^{+}$ baryon

BESIII Collaboration, M. Ablikim, M. N. Achasov +409

Using $567 pb^{- 1}$ of $e^{+} e^{-}$ collisions recorded at $s = 4.599 GeV$ with the BESIII detector, we report first measurements of absolute hadronic branching fractions…

nucl-th2011

Effects of mutual excitations in the fusion of carbon isotopes

H. Esbensen, X. Tang, C. L. Jiang

Fusion data for $^{13}$ C+ $^{13}$ C, $^{12}$ C+ $^{13}$ C and $^{12}$ C+ $^{12}$ C are analyzed by coupled-channels calculations that are based on the M3Y+repulsion, double-folding potenti…

Measurement of Singly Cabibbo Suppressed Decays $I^_{c}^{+} \to p I ¨ ^{+} I ¨ ^{-}$ and $I^_{c}^{+} \to p K^{+} K^{-}$

BESIII collaboration, M. Ablikim, M. N. Achasov +432

Using 567 $p b^{- 1}$ of data collected with the BESIII detector at a center-of-mass energy of $s =$ 4.599 $G e V$ , near the $I^_{c}^{+} I^_{c}^{-}$ threshold, we study the singly…

Determination of the number of $J / I ¨ $ events with inclusive $J / I ¨ $ decays

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

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

Search for C-parity violation in $J / I ¨ \to I^^{3} I^^{3}$ and $I^^{3} I ¨ $

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

Using $1.06 \times 1 0^{8}$ $I ¨ (3686)$ events recorded in $e^{+} e^{-}$ collisions at $s =$ 3.686 GeV with the BESIII at the BEPCII collider, we present searches for C-parity viola…

Observation of $I^\cdot_{c} \to I ¨ I ¨ $ in $J / I ¨ \to I^^{3} I ¨ I ¨ $

M. Ablikim, M. N. Achasov, S. Ahmed +451

Using a sample of $(1310.6 \pm 7.0) \times 1 0^{6}$ $J / I ¨ $ events recorded with the BESIII detector at the symmetric electron positron collider BEPCII, we report the observation of the de…

Search for baryon and lepton number violating decays $D^{+} \to I^ˉ (I^ˉ £^{0}) e^{+}$ and $D^{+} \to I^ (I^£^{0}) e^{+}$

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…

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

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

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

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

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

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

nucl-ex2025

Excitation Spectra of the $^{12} C (p, d)$ Reaction near the $I^\cdot^{'}$ -Meson Emission Threshold Measured in Coincidence with High-Momentum Protons

R. Sekiya, K. Itahashi, Y. K. Tanaka +74

The missing mass of the $^{12} C (p, d)$ reaction has been measured near the $I^\cdot^{'}$ -meson emission threshold in coincidence with a high-momentum proton to selectively collect $…

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

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

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

Measurement of the 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…

Observation of $a_{0}^{0} (980)$ - $f_{0} (980)$ Mixing

M. Ablikim, M. N. Achasov, S. Ahmed +436

We report the first observation of $a_{0}^{0} (980)$ - $f_{0} (980)$ mixing in the decays of $J / I ¨ \to I ¨ f_{0} (980) \to I ¨ a_{0}^{0} (980) \to I ¨ I^\cdot I ¨ ^{0}$ and $Ï_{c1}\to a^{0}_{0}(980)Ï^{0}\…

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

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

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

Branching fraction measurement of $J / I ¨ \to K_{S} K_{L}$ and search for $J / I ¨ \to K_{S} K_{S}$

BESIII Collaboration, M. Ablikim, M. N. Achasov +441

Using a sample of $1.31 \times 1 0^{9}$ $J / I ¨ $ events collected with the BESIII detector at the BEPCII collider, we study the decays of $J / I ¨ \to K_{S} K_{L}$ and $K_{S} K_{S}$ . The…

physics.ins-det2016

The Detector System of The Daya Bay Reactor Neutrino Experiment

F. P. An, J. Z. Bai, A. B. Balantekin +330

The Daya Bay experiment was the first to report simultaneous measurements of reactor antineutrinos at multiple baselines leading to the discovery of $I^ˉ ½_{e}$ oscillations over km…

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

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

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

Study of the decays $D^{+} \to I^\cdot^{(')} e^{+} I^½_{e}$

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

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

Measurement of proton electromagnetic form factors in $e^{+} e^{-} \to p p ˉ$ in the energy region 2.00-3.08 GeV

M. Ablikim, M. N. Achasov, P. Adlarson +473

The process of $e^{+} e^{-} \to p p ˉ$ is studied at 22 center-of-mass energy points ( $s$ ) from 2.00 to 3.08 GeV, exploiting 688.5~pb $^{- 1}$ of data collected with the…

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

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

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

Search for the isospin violating decay $Y (4260) \to J / I ¨ I^\cdot I ¨ ^{0}$

M. Ablikim, M. N. Achasov, X. C. Ai +410

Using data samples collected at center of mass energies of $s$ = 4.009, 4.226, 4.257, 4.358, 4.416 and 4.599 GeV with the BESIII detector operating at the BEPCII storage rin…

Evidence for $e^{+} e^{-} \to I^^{3} I ¨ _{c 1, 2}$ 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 $s$ = 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 $B [I ¨ (3686) \to I ¨ ^{+} I ¨ ^{-} J / I ¨ ]$ and $B [J / I ¨ \to l^{+} l^{-}]$

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

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

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

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

The decay $J / I ¨ \to I^^{3} I^^{3} I ¨ $ is studied using a sample of $1.31 \times 1 0^{9}$ $J / I ¨ $ events collected with the BESIII detector. Two structures around 1475 MeV/c $^{2}$ and 1835…

Observation of $e^{+} e^{-} \to D_{s}^{+} D^{(*) 0} K^{-}$ and study of the $P$ -wave $D_{s}$ mesons

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

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

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

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

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

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

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

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

Observation of $I ¨ (3686) \to I^\cdot^{'} e^{+} e^{-}$

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

Using a data sample of $448.1 \times 1 0^{6}$ $I ¨ (3686)$ 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 $s = 3.773$ ~GeV with the BESIII detector oper…

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

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

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

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

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

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

Observation of $e^{+} e^{-} \to I ¨ ^{+} I ¨ ^{-} I ¨ (3770)$ and $D_{1} (2420)^{0} D ˉ^{0} + c . c .$

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

Several intermediate states of the reaction channels $e^{+} e^{-} \to I ¨ ^{+} I ¨ ^{-} D^{0} D ˉ^{0}$ and $e^{+} e^{-} \to I ¨ ^{+} I ¨ ^{-} D^{+} D^{-}$ are studied usin…

Measurements of the absolute branching fractions for $D_{s}^{+} \to I^\cdot e^{+} I^½_{e}$ and $D_{s}^{+} \to I^\cdot^{'} e^{+} I^½_{e}$

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

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

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

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

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

Evidence of a resonant structure in the $e^{+} e^{-} \to I ¨ ^{+} D^{0} D^{*-}$ cross section between 4.05 and 4.60 GeV

M. Ablikim, M. N. Achasov, S. Ahmed +435

The cross section of the process $e^{+} e^{-} \to I ¨ ^{+} D^{0} D^{*-}$ for center-of-mass energies from 4.05 to 4.60~GeV is measured precisely using data samples collected with the BESIII dete…

First measurement of $e^{+} e^{-} \to p K_{S}^{0} n ˉ K^{-} + c . c .$ above open charm threshold

BESIII Collaboration, M. Ablikim, M. N. Achasov +435

The process $e^{+} e^{-} \to p K_{S}^{0} n ˉ K^{-} + c . c .$ and its intermediate processes are studied for the first time, using data samples collected with the BESIII detector a…

Measurement of Branching Fractions of $I ¨ (3686) \to I ¨ I^\cdot^{'}, I ¨ f_{1} (1285)$ and $I ¨ I^\cdot (1405)$

M. Ablikim, M. N. Achasov, P. Adlarson +476

Using a sample of $448.1 \times 1 0^{6}$ $I ¨ (3686)$ events collected with the BESIII detector, we perform a study of the decay $I ¨ (3686) \to I ¨ I ¨ ^{+} I ¨ ^{-} I^\cdot$ . The branching fra…

Observation of $e^{+} e^{-} \to I^\cdot^{'} J / I ¨ $ at center-of-mass energies between 4.189 and 4.600 GeV

M. Ablikim, M. N. Achasov, S. Ahmed +428

The process $e^{+} e^{-} \to I^\cdot^{'} J / I ¨ $ is observed for the first time with a statistical significance of $8.6 I ¨ $ at center-of-mass energy $s = 4.226$ GeV and $7.3 I ¨ $ a…

Search for Baryon and Lepton Number Violation in $J / I ¨ \to I^_{c}^{+} e^{-} + c . c .$

M. Ablikim, M. N. Achasov, S. Ahmed +447

Using $1.31 \times 1 0^{9}$ $J / I ¨ $ events collected by the BESIII detector at the Beijing Electron Positron Collider, we search for the process $J / I ¨ \to I^_{c}^{+} e^{-} + c . c .$ for the first tim…

Improved measurements of branching fractions for $I^\cdot_{c} \to I ¨ I ¨ $ and $I ¨ I ¨ $

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

Using $(223.7 \pm 1.4) \times 1 0^{6}$ J/ $I ¨ $ events accumulated with the BESIII detector, we study $I^\cdot_{c}$ decays to $I ¨ I ¨ $ and $I ¨ I ¨ $ final states. The branching fraction of $Î·_c\toÏÏ…

Observation of electron-antineutrino disappearance at Daya Bay

F. P. An, J. Z. Bai, A. B. Balantekin +264

The Daya Bay Reactor Neutrino Experiment has measured a non-zero value for the neutrino mixing angle $I^¸_{13}$ with a significance of 5.2 standard deviations. Antineutrinos from si…

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/…

Branching fraction measurements of $I ¨ (3686) \to I^^{3} I ¨ _{c J}$

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

Using a sample of 106 million $I ¨ (3686)$ decays, the branching fractions of $I ¨ (3686) \to I^^{3} I ¨ _{c 0}, I ¨ (3686) \to I^^{3} I ¨ _{c 1}$ , and $I ¨ (3686) \to I^^{3} I ¨ _{c 2}$ are measured with improve…

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

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

Using a data sample of $1.31 \times 1 0^{9} J / I ¨ $ events collected with the BESIII detector, a search for $I^\cdot^{'} \to I^^{3} I^^{3} I^\cdot$ via $J / I ¨ \to I^^{3} I^\cdot^{'}$ is performed for the first time. No signif…

Observation of $I ¨ (3686) \to I^ (1530)^{-} I^ˉ (1530)^{+}$ and $I^ (1530)^{-} I^ˉ ^{+}$

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

Using 448.1 $\times$ $1 0^{6}$ $I ¨ (3686)$ events collected with the BESIII detector at BEPCII, we employ a single-baryon tagging technique to make the first observation of $Ï(3686)…

Measurement of absolute branching fraction of the inclusive decay $I^_{c}^{+} \to I^ + X$

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

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

Improved measurements of the absolute branching fractions of the inclusive decays $D^{+ (0)} \to I ¨ X$

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

By analyzing 2.93 fb $^{- 1}$ of $e^{+} e^{-}$ annihilation data taken at the center-of-mass energy $s =$ 3.773 GeV with the BESIII detector, we determine the branching fractions of…

Measurements of Weak Decay Asymmetries of $I^_{c}^{+} \to p K_{S}^{0}$ , $I^ I ¨ ^{+}$ , $I^£^{+} I ¨ ^{0}$ , and $I^£^{0} I ¨ ^{+}$

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

Using $e^{+} e^{-} \to I^_{c}^{+} I^ˉ _{c}^{-}$ 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 $I ¨ \to I ¨ ^{+} I ¨ ^{-} I ¨ ^{0}$

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

Using a low-background sample of $2.6 \times 1 0^{5}$ $J / I ¨ \to I ¨ I^\cdot (I ¨ \to I ¨ ^{+} I ¨ ^{-} I ¨ ^{0}, I^\cdot \to I^^{3} I^^{3})$ events, about 5 times larger statistics than previous exp…

Measurement of the $e^{+} e^{-} \to I^\cdot J / I ¨ $ cross section and search for $e^{+} e^{-} \to I ¨ ^{0} J / I ¨ $ 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 Î·J…

Cross section measurement of $e^{+} e^{-} \to I^\cdot^{'} J / I ¨ $ from $s = 4.178$ to $4.600$ GeV

M. Ablikim, M. N. Achasov, P. Adlarson +477

The cross section of the process $e^{+} e^{-} \to I^\cdot^{'} J / I ¨ $ is measured at center-of-mass energies from $s =$ 4.178 to 4.600 GeV using data samples corresponding to a tota…

First measurement of the form factors in $D_{s}^{+} \to K^{0} e^{+} I^½_{e}$ and $D_{s}^{+} \to K^{* 0} e^{+} I^½_{e}$ decays

BESIII Collaboration, M. Ablikim, M. N. Achasov +459

We report on new measurements of Cabibbo-suppressed semileptonic $D_{s}^{+}$ decays using $3.19 fb^{- 1}$ of $e^{+} e^{-}$ annihilation data sample collected at a center-of-mass ene…

Observation of $e^{+} e^{-} \to I^\cdot h_{c}$ at center-of-mass energies from 4.085 to 4.600 GeV

BESIII collaboration, M. Ablikim, M. N. Achasov +425

We observe for the first time the process $e^{+} e^{-} \to I^\cdot h_{c}$ with data collected by the BESIII experiment. Significant signals are observed at the center-of-mass energy…

Measurement of the absolute branching fractions of $I^_{c}^{+} \to I^ I^\cdot I ¨ ^{+}$ and $I^£ (1385)^{+} I^\cdot$

M. Ablikim, M. N. Achasov, S. Ahmed +447

We study the decays $I^_{c}^{+} \to I^ I^\cdot I ¨ ^{+}$ and $I^£ (1385)^{+} I^\cdot$ based on $I^_{c}^{+} I^ˉ _{c}^{-}$ pairs produced in $e^{+} e^{-}$ collisions at a center-of-mass energy of $\sqrt{s}…