Refine
Year of publication
Document Type
- Preprint (685)
- Article (481)
- Working Paper (1)
Language
- English (1167)
Has Fulltext
- yes (1167)
Is part of the Bibliography
- no (1167)
Keywords
- BESIII (19)
- e +-e − Experiments (15)
- Heavy Ion Experiments (13)
- Branching fraction (11)
- Hadron-Hadron Scattering (10)
- Particle and Resonance Production (9)
- Hadron-Hadron scattering (experiments) (7)
- Quarkonium (7)
- Charm Physics (6)
- Spectroscopy (6)
- Hadronic decays (5)
- Branching fractions (4)
- Charm physics (4)
- Charmonium (4)
- Collective Flow (4)
- Exotics (4)
- Heavy-ion collisions (4)
- Jets (4)
- Lepton colliders (4)
- QCD (4)
- Quark-Gluon Plasma (4)
- Charmed mesons (3)
- Diffraction (3)
- Elastic scattering (3)
- Electroweak interaction (3)
- Heavy Ions (3)
- Heavy-ion collision (3)
- Initial state radiation (3)
- Jets and Jet Substructure (3)
- LHC (3)
- Polarization (3)
- e+-e− Experiments (3)
- ALICE experiment (2)
- Absolute branching fraction (2)
- Beam Energy Scan (2)
- Bhabha (2)
- Chiral Magnetic Effect (2)
- Collectivity (2)
- Correlation (2)
- Cross section (2)
- Electroweak Interaction (2)
- Elliptic flow (2)
- Flavour Physics (2)
- Hadronic cross section (2)
- Heavy Quark Production (2)
- Leptonic, semileptonic & radiative decays (2)
- Muon anomaly (2)
- Particle Correlations and Fluctuations (2)
- Particle decays (2)
- Pb–Pb collisions (2)
- Pion form factor (2)
- RHIC (2)
- Radiative decay (2)
- STAR (2)
- Shear viscosity (2)
- decays (2)
- minerals (2)
- new species (2)
- ALICE detector (1)
- Alleles (1)
- Angular distribution (1)
- Annihilation (1)
- Anti-nuclei (1)
- Aortic valve (1)
- Apoptosis (1)
- B-slope (1)
- BESIII detector (1)
- Bacchini (1)
- Beam energy scan (1)
- Beauty production (1)
- Boosted Jets (1)
- Born cross section (1)
- Born cross section measurement (1)
- Branching fraction measurement (1)
- CD4+ T lymphocytes (1)
- CP violation (1)
- Canonical suppression (1)
- Cell proliferation (1)
- Centrality Class (1)
- Centrality Selection (1)
- Charged-particle multiplicity (1)
- Charm quark spatial diffusion coefficient (1)
- Charm vector (1)
- Charmed baryon (1)
- Charmonia (1)
- Charmonium (-like) (1)
- Chemikalie (1)
- Chiral magnetic effect (1)
- Coalescence (1)
- Cold nuclear matter effects (1)
- Collective Flow, (1)
- Covariance matrix (1)
- Critical point (1)
- Cross section measurements (1)
- D meson (1)
- D0 and D+ mesons (1)
- Dalitz decay (1)
- Dark photon (1)
- Dark sector (1)
- Datong coalfield (1)
- Deuteron production (1)
- Di-hadron correlations (1)
- D⁰ meson (1)
- Early Permian (1)
- Effective form factor (1)
- Electromagnetic amplitude (1)
- Electromagnetic form factor (1)
- Electromagnetic form factors (1)
- Electron-pion identification (1)
- Endothelial cells (1)
- Experimental nuclear physics (1)
- Experimental particle physics (1)
- FOS: Physical sciences (1)
- Fibre/foam sandwich radiator (1)
- Flavor changing neutral currents (1)
- Flavor symmetries (1)
- Flow (1)
- Form factors (1)
- Forward physics (1)
- Groomed jet radius (1)
- Hadron-Hadron Scattering Heavy (1)
- Hadrons (1)
- Hard Scattering (1)
- Heart (1)
- Heavy Ion Experiment (1)
- Heavy ions (1)
- Heavy-Ion Collision (1)
- Heavy-flavor decay electron (1)
- Heavy-flavour decay muons (1)
- Heavy-flavour production (1)
- Heavy-ion (1)
- Helicity amplitude analysis (1)
- High Energy Physics - Experiment (hep-ex) (1)
- Higher moments (1)
- Homeostasis (1)
- Hyperons (1)
- Immunostaining (1)
- Inclusive branching fraction (1)
- Interference fragmentation function (1)
- Invariant Mass Distribution (1)
- Invisible decays (1)
- Ionisation energy loss (1)
- J/ψ suppression (1)
- Jet Physics (1)
- Jet Substructure (1)
- Jet substructure (1)
- K0S (1)
- Material budget (1)
- Melanostomini (1)
- Minimum Bias (1)
- Monte Carlo (1)
- Multi-Parton Interactions (1)
- Multi-wire proportional drift chamber (1)
- Multiple parton interactions (1)
- Neural network (1)
- Neutrinos (1)
- Neutron (1)
- Nonflow (1)
- Particle and resonance production (1)
- Particle correlations and fluctuations (1)
- Particle phenomena (1)
- Particle production (1)
- Phase (1)
- Pingshuo mining district (1)
- Potential (1)
- Production Cross Section (1)
- Properties of Hadrons (1)
- Proton (1)
- Proton-proton collisions (1)
- Protonen (1)
- Proton–proton collisions (1)
- Quantum chromodynamics (1)
- Quark Deconfinement (1)
- Quark Production (1)
- Quark gluon plasma (1)
- Quark–gluon plasma (1)
- R value (1)
- Rapidity Range (1)
- Rare decays (1)
- Relativistic heavy ion physics (1)
- Resolution Parameter (1)
- Resonances (1)
- Semi-leptonic decays (1)
- Single electrons (1)
- SoftDrop (1)
- Spin alignment (1)
- Splitting function (1)
- Strangeness enhancement (1)
- Strong amplitude (1)
- Symmetrie (1)
- Syrphinae (1)
- Systematic Uncertainty (1)
- TR (1)
- Techniques Electromagnetic calorimeters (1)
- Thermal model (1)
- Threshold effect (1)
- Tibet (1)
- Time Projection Chamber (1)
- Tipulinae (1)
- Tracking (1)
- Transition radiation detector (1)
- Transversity (1)
- Trigger (1)
- Triple quarkonia (1)
- Vector Boson Production (1)
- Vestiplex (1)
- W-exchange (1)
- Xenon-based gas mixture (1)
- Y (4260) (1)
- Y states (1)
- apoptosis (1)
- approximate number system (1)
- branching fractions (1)
- caspase (1)
- center-of-mass energy (1)
- charmed baryon (1)
- charmonium-like states (1)
- coal (1)
- counting (1)
- crane flies (1)
- cross-national comparison (1)
- dE/dx (1)
- decay (1)
- detector (1)
- diagnosis and treatment (1)
- dimuon (1)
- diphoton (1)
- e+e − annihilation (1)
- e+e⁻ − Experiments (1)
- e+e− Experiments (1)
- e+e− annihilation (1)
- ectosomes (1)
- electron-positron collision (1)
- enrichment factor (1)
- exosomes (1)
- experimental results (1)
- extracellular vesicles (1)
- felsic detrital (1)
- guidelines (1)
- hadron spectroscopy (1)
- hadronic events (1)
- harmful elements (1)
- heavy ion collisions (1)
- heavy ion experiments (1)
- heavy-ion collisions (1)
- helicity amplitude analysis (1)
- hydrothermal fluids (1)
- hydroxysafflor yellow A (1)
- inclusive J/ψ decays (1)
- lithium (1)
- luminosity (1)
- lung cancer (1)
- lymphangioleiomyomatosis (1)
- microparticles (1)
- microvesicles (1)
- minimal information requirements (1)
- neutron and proton chemical potential (1)
- new genus (1)
- number of J/ψ events (1)
- occurrence state (1)
- p+p collisions (1)
- peat environment (1)
- pp collisions (1)
- preschool (1)
- quark gluon plasma (1)
- reproducibility (1)
- rigor (1)
- schwere Ion-Kollisionen (1)
- seawater influence (1)
- sepsis (1)
- standardization (1)
- subitizing (1)
- symmetry potential (1)
- terrigenous (1)
- tetraquark (1)
- trace elements (1)
- trigger efficiency (1)
- Λ+c baryon (1)
- Λc⁺ (1)
- Σ hyperon (1)
- Υ suppression (1)
- ψ(3686) (1)
Institute
- Physik (1045)
- Frankfurt Institute for Advanced Studies (FIAS) (760)
- Informatik (638)
- Medizin (3)
- Geowissenschaften (2)
- Geowissenschaften / Geographie (2)
- Hochschulrechenzentrum (2)
- Psychologie (2)
- Center for Financial Studies (CFS) (1)
- Deutsches Institut für Internationale Pädagogische Forschung (DIPF) (1)
Using data samples collected with the BESIII detector operating at the BEPCII storage ring, the cross section of the inclusive process e+e−→η+X, normalized by the total cross section of e+e−→hadrons, is measured at eight center-of-mass energy points from 2.0000 GeV to 3.6710 GeV. These are the first measurements with momentum dependence in this energy region. Our measurement shows a significant discrepancy from calculations with the existing fragmentation functions. To address this discrepancy, a new QCD analysis is performed at the next-to-next-to-leading order with hadron mass corrections and higher twist effects, which can explain both the established high-energy data and our measurements reasonably well.
Using data samples collected with the BESIII detector operating at the BEPCII storage ring, the cross section of the inclusive process e+e−→η+X, normalized by the total cross section of e+e−→hadrons, is measured at eight center-of-mass energy points from 2.0000 GeV to 3.6710 GeV. These are the first measurements with momentum dependence in this energy region. Our measurement shows a significant discrepancy from calculations with the existing fragmentation functions. To address this discrepancy, a new QCD analysis is performed at the next-to-next-to-leading order with hadron mass corrections and higher twist effects, which can explain both the established high-energy data and our measurements reasonably well.
The processes hc→γP(P=η′, η, π0) are studied with a sample of (27.12±0.14)×108 ψ(3686) events collected by the BESIII detector at the BEPCII collider. The decay hc→γη is observed for the first time with the significance of 9.0σ, and the branching fraction is determined to be (3.77±0.55±0.13±0.26)×10−4, while B(hc→γη′) is measured to be (1.40±0.11±0.04±0.10)×10−3, where the first uncertainties are statistical, the second systematic, and the third from the branching fraction of ψ(3686)→π0hc. The combination of these results allows for a precise determination of Rhc=B(hc→γη)B(hc→γη′), which is calculated to be (27.0±4.4±1.0)%. The results are valuable for gaining a deeper understanding of η−η′ mixing, and its manifestation within quantum chromodynamics. No significant signal is found for the decay hc→γπ0, and an upper limit is placed on its branching fraction of B(hc→γπ0)<5.0×10−5, at the 90% confidence level.
Using e+e− annihilation data sets corresponding to an integrated luminosity of 4.5 fb−1, collected with the BESIII detector at center-of-mass energies between 4.600 and 4.699 GeV, we report the first measurements of the absolute branching fractions B(Λ+c→pK0L)=(1.67±0.06±0.04)%, B(Λ+c→pK0Lπ+π−)=(1.69±0.10±0.05)%, and B(Λ+c→pK0Lπ0)=(2.02±0.13±0.05)%, where the first uncertainties are statistical and the second systematic. Combining with the known branching fractions of Λ+c→pK0S, Λ+c→pK0Sπ+π−, and Λ+c→pK0Sπ0, we present the first measurements of the K0S-K0L asymmetries R(Λ+c,K0S,LX)=B(Λ+c→K0SX)−B(Λ+c→K0LX)B(Λ+c→K0SX)+B(Λ+c→K0LX) in charmed baryon decays: R(Λ+c,pK0S,L)=−0.025±0.031, R(Λ+c,pK0S,Lπ+π−)=−0.027±0.048, and R(Λ+c,pK0S,Lπ0)=−0.015±0.046. No significant asymmetries within the uncertainties are observed.
Based on (2712.4±14.3)×106 ψ(3686) events, we investigate four hadronic decay modes of the P-wave charmonium spin-singlet state hc(1P1)→h+h−π0/η (h=π or K) via the process ψ(3686)→π0hc at BESIII. The hc→π+π−π0 decay is observed with a significance of 9.6σ after taking into account systematic uncertainties. Evidences for hc→K+K−π0 and hc→K+K−η are found with significances of 3.5σ and 3.3σ, respectively, after considering the systematic uncertainties. The branching fractions of these decays are measured to be B(hc→π+π−π0)=(1.36±0.16±0.14)×10−3, B(hc→K+K−π0)=(3.26±0.84±0.36)×10−4, and B(hc→K+K−η)=(3.13±1.08±0.38)×10−4, where the first uncertainties are statistical and the second are systematic. No significant signal of hc→π+π−η is found, and the upper limit of its decay branching fraction is determined to be B(hc→π+π−η)<4.0×10−4 at 90% confidence level.
Six C-even states, denoted as X, with quantum numbers JPC=0−+, 1±+, or 2±+, are searched for via the e+e−→γD±sD∗∓s process using (1667.39±8.84) pb−1 of e+e− collision data collected with the BESIII detector operating at the BEPCII storage ring at center-of-mass energy of s√=(4681.92±0.30) MeV. No statistically significant signal is observed in the mass range from 4.08 to 4.32 GeV/c2. The upper limits of σ[e+e−→γX]⋅B[X→D±sD∗∓s] at a 90% confidence level are determined.
The processes hc→γP(P=η′, η, π0)) are studied with a sample of (27.12±0.14)×108 ψ(3686) events collected by the BESIII detector at the BEPCII collider. The branching fractions of hc→γη′ and hc→γη are measured to be (1.40±0.11±0.04±0.10)×10−3 and (3.77±0.55±0.13±0.26)×10−4, respectively, where the first uncertainties are statistical, the second systematic, and the third from the branching fraction of ψ(3686)→π0hc. The ratio Rhc=B(hc→γη)B(hc→γη′) is calculated to be (27.0±4.4±1.0)%. The measurements are consistent with the previous results with improved precision by a factor of 2. The results are valuable for gaining a deeper understanding of η−η′ mixing, and its manifestation within quantum chromodynamics. No significant signal is found for the decay hc→γπ0, and an upper limit is placed on its branching fraction of B(hc→γπ0)<5.0×10−5, at the 90\% confidence level.
We perform the first investigation of the process e+e−→K+K−ψ(2S) and report its Born cross sections over a range of center-of-mass energies from 4.699 to 4.951~GeV. The measurements are carried out using several partial reconstruction techniques using data samples collected by the BESIII detector with a total integrated luminosity of 2.5~fb−1. We search for new tetraquark candidates Z±cs in the decays Z±cs→K±ψ(2S). No significant Z±cs signals are observed.
The branching fraction of D+→K0Sπ0e+νe is measured for the first time using 7.93 fb−1 of e+e− annihilation data collected at the center-of-mass energy s√=3.773~GeV with the BESIII detector operating at the BEPCII collider, and is determined to be B(D+→K0Sπ0e+νe) = (0.881 ± 0.017stat. ± 0.016syst.)\%. Based on an analysis of the D+→K0Sπ0e+νe decay dynamics, we observe the S-wave and P-wave components with fractions of fS-wave = (6.13 ± 0.27stat. ± 0.30syst.)% and fK¯∗(892)0 = (93.88 ± 0.27stat. ± 0.29syst.)\%, respectively. From these results, we obtain the branching fractions B(D+→(K0Sπ0)S-wave e+νe) = (5.41 ± 0.35stat. ± 0.37syst.)×10−4 and B(D+→K¯∗(892)0e+νe) = (4.97 ± 0.11stat. ± 0.12syst.)\%. In addition, the hadronic form-factor ratios of D+→K¯∗(892)0e+νe at q2=0, assuming a single-pole dominance parameterization, are determined to be rV=V(0)A1(0)=1.43 ± 0.07stat. ± 0.03syst. and r2=A2(0)A1(0)=0.72 ± 0.06stat. ± 0.02syst.