Refine
Year of publication
Document Type
- Preprint (563)
- Article (363)
- Conference Proceeding (2)
Has Fulltext
- yes (928)
Is part of the Bibliography
- no (928)
Keywords
- Heavy Ion Experiments (20)
- Hadron-Hadron scattering (experiments) (11)
- Hadron-Hadron Scattering (8)
- BESIII (6)
- Heavy-ion collision (5)
- Branching fraction (4)
- Collective Flow (4)
- Quark-Gluon Plasma (4)
- Experimental nuclear physics (3)
- Experimental particle physics (3)
- Jets (3)
- Jets and Jet Substructure (3)
- Lepton colliders (3)
- Particle and resonance production (3)
- Quasi-free scattering (3)
- Charm physics (2)
- Charmed mesons (2)
- Electroweak interaction (2)
- Hadronic decays (2)
- Heavy Quark Production (2)
- Inverse kinematics (2)
- Lepton-Nucleon Scattering (experiments) (2)
- Particle Correlations and Fluctuations (2)
- Particle correlations and fluctuations (2)
- QCD (2)
- Quarkonium (2)
- Single-particle states (2)
- Spectroscopic factors (2)
- e+-e− Experiments (2)
- ALICE detector (1)
- Acuris (1)
- Anti-nuclei (1)
- Atmospheric chemistry (1)
- BESIII detector (1)
- Bacterial leakage (1)
- Bhabha (1)
- Biogeochemistry (1)
- Boosted Jets (1)
- Branching fractions (1)
- CAD/CAM crown (1)
- COVID-19 (1)
- CTLA-4 (1)
- Cement gap (1)
- Cerebral cortex (1)
- Collective Flow, (1)
- Conometric connection (1)
- Cross section (1)
- Cross sections (1)
- D meson (1)
- Direct nuclear reactions (1)
- Direct reactions (1)
- Electromagnetic form factor (1)
- Electromagnetic form factors (1)
- Electron-pion identification (1)
- Erzähltheorie (1)
- Exotics (1)
- Fibre/foam sandwich radiator (1)
- Flavor changing neutral currents (1)
- Form factors (1)
- Hadron-Hadron Scattering Heavy (1)
- Hadron-hadron interactions (1)
- Hard Scattering (1)
- Heavy Ion Experiment (1)
- Heavy Ions (1)
- Hofmannsthal, Hugo von (1)
- Hyperons (1)
- Inclusive branching fraction (1)
- Initial state radiation (1)
- Ionisation energy loss (1)
- Jet Physics (1)
- Jet Substructure (1)
- K0S (1)
- KIF (1)
- KIF11 (1)
- LHC (1)
- Leptonic, semileptonic & radiative decays (1)
- Longitudinal (1)
- Lyrik (1)
- Marginal integrity (1)
- Material budget (1)
- Microgap (1)
- Multi-Parton Interactions (1)
- Multi-wire proportional drift chamber (1)
- NCH93 (1)
- Neural network (1)
- Neutrinos (1)
- Nuclear reactions (1)
- Nuclear structure & decays (1)
- Nucleon induced nuclear reactions (1)
- One-nucleon removal (1)
- PD-1 (1)
- Parkinson's disease (1)
- Particle and Resonance Production (1)
- Particle decays (1)
- Pb–Pb collisions (1)
- Poetik (1)
- Properties of Hadrons (1)
- Proton (1)
- Quantitative MRI (1)
- Quantum chromodynamics (1)
- Quark Deconfinement (1)
- Quark Gluon Plasma (1)
- Quark Production (1)
- Quark gluon plasma (1)
- Rare decays (1)
- Relativistic heavy-ion collisions (1)
- Relaxometry (1)
- SARS-CoV-2 (1)
- Shell model (1)
- Spectroscopic factors & electromagnetic moments (1)
- T1 (1)
- TR (1)
- Techniques Electromagnetic calorimeters (1)
- Tracking (1)
- Transition radiation detector (1)
- Trigger (1)
- Vector Boson Production (1)
- Xenon-based gas mixture (1)
- brain imaging (1)
- branching fractions (1)
- center-of-mass energy (1)
- charmed baryon (1)
- dE/dx (1)
- decays (1)
- detector (1)
- dimuon (1)
- e +-e − Experiments (1)
- e+e − annihilation (1)
- e+e⁻ − Experiments (1)
- epilepsy (1)
- experimental results (1)
- hadronic events (1)
- heavy ion experiments (1)
- idiopathic dystonia (1)
- immune checkpoint blockade (1)
- inclusive J/ψ decays (1)
- kinesin (1)
- liver metastasis (1)
- meningioma (1)
- movement disorders (1)
- multiple sclerosis (1)
- neurodegeneration (1)
- neuroimaging (1)
- neutralizing antibodies (1)
- number of J/ψ events (1)
- proton density (1)
- quantitative MRI (1)
- quantitative magnetic resonance imaging (1)
- quark gluon plasma (1)
- relaxometry (1)
- spike protein (1)
- treatment resistance (1)
- trigger efficiency (1)
- uveal melanoma (1)
- variants of concern (1)
- Σ hyperon (1)
- ψ(3686) (1)
Institute
- Physik (915)
- Frankfurt Institute for Advanced Studies (FIAS) (752)
- Informatik (718)
- ELEMENTS (9)
- Medizin (8)
- Informatik und Mathematik (3)
- Geowissenschaften (2)
- Hochschulrechenzentrum (1)
The integrated luminosities of data samples collected in the BESIII experiment in 2016–2017 at center-of-mass energies between 4.19 and 4.28 GeV are measured with a precision better than 1% by analyzing large-angle Bhabha scattering events. The integrated luminosities of old datasets collected in 2010–2014 are updated by considering corrections related to detector performance, offsetting the effect of newly discovered readout errors in the electromagnetic calorimeter, which can haphazardly occur.
During the 2016-17 and 2018-19 running periods, the BESIII experiment collected 7.5~fb−1 of e+e− collision data at center-of-mass energies ranging from 4.13 to 4.44~GeV. These data samples are primarily used for the study of excited charmonium and charmoniumlike states. By analyzing the di-muon process e+e−→(γISR/FSR)μ+μ−, we measure the center-of-mass energies of the data samples with a precision of 0.6 MeV. Through a run-by-run study, we find that the center-of-mass energies were stable throughout most of the data-taking period.
Using inclusive decays of the J/ψ, a precise determination of the number of J/ψ events collected with the BESIII detector is performed. For the two data sets taken in 2009 and 2012, the numbers of J/ψ events are recalculated to be (224.0±1.3)×106 and (1088.5±4.4)×106 respectively, which are in good agreement with the previous measurements. For the J/ψ sample taken in 2017--2019, the number of events is determined to be (8774.0±39.4)×106. The total number of J/ψ events collected with the BESIII detector is determined to be (10087±44)×106, where the uncertainty is dominated by systematic effects and the statistical uncertainty is negligible.
Using a data sample corresponding to an integrated luminosity of 2.93 fb−1 collected at a center-of-mass energy s√=3.773 GeV by the BESIII detector, the decay D0→ωϕ is observed for the first time. The branching fraction is measured to be (6.48±0.96±0.38)×10−4 with a significance of 6.3σ, where the first and second uncertainties are statistical and systematic, respectively. An angular analysis reveals that the ϕ and ω mesons from the D0→ωϕ decay are transversely polarized.
The Born cross sections of the e+e− → +¯ − and e+e− → −¯ + processes are determined for centerof-mass energy from 2.3864 to 3.0200 GeV with the BESIII detector. The cross section lineshapes can be described properly by a pQCD function and the resulting ratio of effective form factors for the + and − is consistent with 3. In addition, ratios of the + electric and magnetic form factors, |GE /GM |, are obtained at three center-of-mass energies through an analysis of the angular distributions. These measurements, which are studied for the first time in the off-resonance region, provide precision experimental input for understanding baryonic structure. The observed new features of the ± form factors require more theoretical discussions for the hyperons.
Using a data sample of 4.481×108 𝜓(3686) events collected with the BESIII detector, we report the first observation of the four-lepton-decays 𝐽/𝜓→𝑒+𝑒−𝑒+𝑒− and 𝐽/𝜓→𝑒+𝑒−𝜇+𝜇− utilizing the process 𝜓(3686)→𝜋+𝜋−𝐽/𝜓. The branching fractions are determined to be [5.48±0.31(stat)±0.45(syst)]×10−5 and [3.53±0.22(stat)±0.13(syst)]×10−5, respectively. The results are consistent with theoretical predictions. No significant signal is observed for 𝐽/𝜓→𝜇+𝜇−𝜇+𝜇−, and an upper limit on the branching fraction is set at 1.6×10−6 at the 90% confidence level. A 𝐶𝑃 asymmetry observable is constructed for the first two channels, which is measured to be (−0.012±0.054±0.010) and (0.062±0.059±0.006), respectively. No evidence for 𝐶𝑃 violation is observed in this process.
Using inclusive decays of the J/ψ, a precise determination of the number of J/ψ events collected with the BESIII detector is performed. For the two data sets taken in 2009 and 2012, the numbers of J/ψ events are recalculated to be (224.0±1.3)×106 and (1088.5±4.4)×106 respectively, which are in good agreement with the previous measurements. For the J/ψ sample taken in 2017--2019, the number of events is determined to be (8774.0±39.4)×106. The total number of J/ψ events collected with the BESIII detector is determined to be (10087±44)×106, where the uncertainty is dominated by systematic effects and the statistical uncertainty is negligible.
During the 2016-17 and 2018-19 running periods, the BESIII experiment collected 7.5~fb−1 of e+e− collision data at center-of-mass energies ranging from 4.13 to 4.44 GeV. These data samples are primarily used for the study of excited charmonium and charmoniumlike states. By analyzing the di-muon process e+e−→(γISR/FSR)μ+μ−, we measure the center-of-mass energies of the data samples with a precision of 0.6 MeV. Through a run-by-run study, we find that the center-of-mass energies were stable throughout most of the data-taking period.
Using 5.9 pb−1 of e+e− annihilation data collected at center-of-mass energies from 3.640 to 3.701 GeV with the BESIII detector at the BEPCII Collider, we measure the observed cross sections of e+e−→K0SX (where X=anything). From a fit to these observed cross sections with the sum of continuum and ψ(3686) and J/ψ Breit-Wigner functions and considering initial state radiation and the BEPCII beam energy spread, we obtain for the first time the inclusive decay branching fraction B(ψ(3686)→K0SX)=(16.04±0.29±0.90)%, where the first uncertainty is statistical and the second is systematic.
During the 2016-17 and 2018-19 running periods, the BESIII experiment collected 7.5~fb−1 of e+e− collision data at center-of-mass energies ranging from 4.13 to 4.44 GeV. These data samples are primarily used for the study of excited charmonium and charmoniumlike states. By analyzing the di-muon process e+e−→(γISR/FSR)μ+μ−, we measure the center-of-mass energies of the data samples with a precision of 0.6 MeV. Through a run-by-run study, we find that the center-of-mass energies were stable throughout most of the data-taking period.