Refine
Year of publication
Document Type
- Article (358) (remove)
Has Fulltext
- yes (358)
Is part of the Bibliography
- no (358)
Keywords
- e +-e − Experiments (13)
- BESIII (11)
- Branching fraction (9)
- Hadron-Hadron Scattering (8)
- Heavy Ion Experiments (7)
- Particle and Resonance Production (6)
- Quarkonium (6)
- Charm Physics (5)
- Collective Flow (4)
- Electroweak interaction (4)
- Exotics (4)
- HIV (4)
- Hadron-Hadron scattering (experiments) (4)
- Lepton colliders (4)
- Quark-Gluon Plasma (4)
- Spectroscopy (4)
- COVID-19 (3)
- Charmed mesons (3)
- Experimental nuclear physics (3)
- Experimental particle physics (3)
- Hadronic decays (3)
- Jets (3)
- Jets and Jet Substructure (3)
- QCD (3)
- e+-e− Experiments (3)
- Branching fractions (2)
- Charm physics (2)
- Electroweak Interaction (2)
- Flavour Physics (2)
- Heavy Quark Production (2)
- Hyperons (2)
- Initial state radiation (2)
- Lepton-Nucleon Scattering (experiments) (2)
- Leptonic, semileptonic & radiative decays (2)
- Opportunistic infections (2)
- Particle Correlations and Fluctuations (2)
- Particle and resonance production (2)
- Particle decays (2)
- Proton (2)
- SARS-CoV-2 (2)
- decays (2)
- AA-amylodosis (1)
- Absolute branching fraction (1)
- Acute coronary syndrome (1)
- Antibody avidity (1)
- Antigens (1)
- Antiretroviral therapy (1)
- Assay variation (1)
- Atrial fibrillation (1)
- B cell subpopulations (1)
- BESIII detector (1)
- BPTF (1)
- Baryonic resonances (1)
- Bhabha (1)
- Blood groups (1)
- Boosted Jets (1)
- Born cross section (1)
- COBAS Taqman (1)
- COSMO-CLM (1)
- CP violation (1)
- CVID (1)
- Cancer (1)
- Cancer genetics (1)
- Cancer genomics (1)
- Cardiac troponin (1)
- Cardiovascular biology (1)
- Cerebral toxoplasmosis HIV (1)
- Charmed baryon (1)
- Chemical composition (1)
- Chemorefractory advanced gastric cancer (1)
- Children (1)
- Chronic kidney disease (1)
- Collective Flow, (1)
- Convection (1)
- Covariance matrix (1)
- Cross section (1)
- Culture positive (1)
- D meson (1)
- Dark photon (1)
- Dark sector (1)
- De-isolation (1)
- Decision trees (1)
- Demolition emissions (1)
- Diagnosis (1)
- Diagnostic markers (1)
- Effective form factor (1)
- Electromagnetic form factor (1)
- Electromagnetic form factors (1)
- Europe (1)
- European Society for Immunodeficiencies (ESID) (1)
- FAPI PET (1)
- FOLFIRI (1)
- Filariosis (1)
- First-line combination antiretroviral therapy (1)
- First-line regimen (1)
- Flavor changing neutral currents (1)
- Flavor symmetries (1)
- Form factors (1)
- Forschung (1)
- Freezeout (1)
- GIIb/IIIa-receptor (1)
- Genomic instability (1)
- German PID-NET registry (1)
- HCV (1)
- HIV protease inhibitors (1)
- HIV-RNA (1)
- HNO (1)
- HSP (hereditary spastic paraplegia) (1)
- Hadron-Hadron Scattering Heavy (1)
- Hadron-hadron interactions (1)
- Hadronic cross section (1)
- Hals-Nasen-Ohren-Heilkunde (1)
- Haplotypes (1)
- Hard Scattering (1)
- Heavy Ion Experiment (1)
- Heavy-ion collision (1)
- Heavy-ion reactions (1)
- Hemophilia A (1)
- Human genetics (1)
- IVDU (1)
- IgG substitution therapy (1)
- Inclusive branching fraction (1)
- Invisible decays (1)
- Jet Physics (1)
- Jet Substructure (1)
- K0S (1)
- KLHL11 (1)
- Late presentation (1)
- Lehre (1)
- Loa loa (1)
- Methicillin-resistant Staphylococcus aureus (1)
- Microfilaremia (1)
- Migrant health (1)
- Molecular medicine (1)
- Multi-Parton Interactions (1)
- Muon anomaly (1)
- Mycobacteria (1)
- Mycobacterium avium complex (1)
- Myocardial infarction (1)
- N471D strumpellin knock-in mice (1)
- NTDs (1)
- NURF (1)
- Neglected tropical diseases (1)
- Neutrinos (1)
- Nontuberculous mycobacteria (1)
- Nucleus (1)
- ORL (1)
- Open pulmonary tuberculosis (1)
- Otorhinolaryngology (1)
- PAC-1 (1)
- PCP (1)
- PID prevalence (1)
- PM10 (1)
- Particle correlations and fluctuations (1)
- Particle phenomena (1)
- Persistence SARS-CoV-2 antibodies (1)
- Phylogenetic analysis (1)
- Pion form factor (1)
- Pneumocystis jirovecii (1)
- Polarization (1)
- Pre-treatment drug resistance mutations (1)
- Precipitation (1)
- Properties of Hadrons (1)
- Protease inhibitor therapy (1)
- Quantum chromodynamics (1)
- Quark Deconfinement (1)
- Quark Gluon Plasma (1)
- Quark Production (1)
- Rare decays (1)
- RealTime (1)
- Relativistic heavy-ion collisions (1)
- Research (1)
- Residency (1)
- Respiratory infections (1)
- SARS-CoV‑2 pandemic (1)
- SARS-CoV‑2-Pandemie (1)
- SPG8 (1)
- Semi-leptonic decays (1)
- Sensitivity (1)
- Size distribution (1)
- Specialist training (1)
- Specificity (1)
- Sputum smear-negative (1)
- Strangeness (1)
- Sub-hourly scale (1)
- Sunitinib (1)
- T cell response (1)
- TB-therapy (1)
- Teaching (1)
- Techniques Electromagnetic calorimeters (1)
- Threshold effect (1)
- Treatment (1)
- Treatment modification (1)
- Trees (1)
- Tyrosine kinase inhibitor (1)
- Ultrafine particles (1)
- University hospitals (1)
- Universitätskliniken (1)
- Urban aerosol (1)
- VEGF (1)
- Vector Boson Production (1)
- Viral load (1)
- Virological failure (1)
- WASH complex subunit 5 (1)
- Weiterbildung (1)
- Y states (1)
- animal experiments (1)
- anti-retroviral agents (1)
- autoimmunity (1)
- biomarker (1)
- blood hiv rna (1)
- booster (1)
- branching fractions (1)
- cART (1)
- cardiac magnetic resonance (1)
- cd4 count determination procedure (1)
- center-of-mass energy (1)
- charmed baryon (1)
- charmonium-like states (1)
- chronic kidney disease (1)
- cirrhosis (1)
- clinical immunology (1)
- cohort study (1)
- death rates (1)
- decision aids (1)
- dimuon (1)
- e+e − annihilation (1)
- e+e⁻ − Experiments (1)
- electron-positron collision (1)
- enterobacter infections; pseudomonas aeruginosa; epidemiology (1)
- epidemiology (1)
- exponential model (1)
- fibrosis imaging (1)
- flow cytometry (1)
- guidelines (1)
- hadron spectroscopy (1)
- hadronic events (1)
- hemodialysis (1)
- hiv (1)
- human immunodeficiency virus (1)
- immunosuppression (1)
- inclusive J/ψ decays (1)
- infection (1)
- intranasal administration (1)
- leucocytes (1)
- liver transplantation (1)
- lymphocytes (1)
- mRNA-1273 (1)
- medical risk factors (1)
- mice (1)
- monoclonal antibody (1)
- mortality risk (1)
- myocardial fibrosis (1)
- neutralization (1)
- neutralizing antibody (1)
- non-ST-segment elevation acute coronary syndrome (1)
- nuclear cardiology (1)
- number of J/ψ events (1)
- perinatal HIV infection (1)
- platelets (1)
- pneumocystis (1)
- pneumocystis carinii (1)
- pneumocystis pneumonia (1)
- pneumonia (1)
- prevention (1)
- primary immunodeficiency (PID) (1)
- prophylaxis (1)
- pseudomonas aeruginosa (1)
- reference values (1)
- registry for primary immunodeficiency (1)
- renal transplantation (1)
- risk factors (1)
- scar (1)
- seroconversion (1)
- strumpellin (1)
- survival (1)
- tetraquark (1)
- topical administration (1)
- transduction (1)
- transplantation (1)
- trigger efficiency (1)
- vaccination (1)
- virological failure (1)
- virus (1)
- young people (1)
- Λ+c baryon (1)
- Σ hyperon (1)
- ψ(3686) (1)
Institute
Correction to: ALICE Collaboration. Direct observation of the dead-cone effect in quantum chromodynamics. Nature 605, 440–446 (2022). https://doi.org/10.1038/s41586-022-04572-w
Production of inclusive charmonia in pp collisions at center-of-mass energy of √s = 13 TeV and p–Pb collisions at center-of-mass energy per nucleon pair of √sNN = 8.16 TeV is studied as a function of charged-particle pseudorapidity density with ALICE. Ground and excited charmonium states (J/ψ, ψ(2S)) are measured from their dimuon decays in the interval of rapidity in the center-of-mass frame 2.5 < ycms < 4.0 for pp collisions, and 2.03 < ycms < 3.53 and −4.46 < ycms < −2.96 for p–Pb collisions. The charged-particle pseudorapidity density is measured around midrapidity (|η| < 1.0). In pp collisions, the measured charged-particle multiplicity extends to about six times the average value, while in p-Pb collisions at forward (backward) rapidity a multiplicity corresponding to about three (four) times the average is reached. The ψ(2S) yield increases with the charged-particle pseudorapidity density. The ratio of ψ(2S) over J/ψ yield does not show a significant multiplicity dependence in either colliding system, suggesting a similar behavior of J/ψ and ψ(2S) yields with respect to charged-particle pseudorapidity density. Results for the ψ(2S) yield and its ratio with respect to J/ψ agree with available model calculations.
The most precise measurements to date of the 3ΛH lifetime τ and Λ separation energy BΛ are obtained using the data sample of Pb-Pb collisions at √sNN = 5.02 TeV collected by ALICE at the LHC. The 3ΛH is reconstructed via its charged two-body mesonic decay channel (3ΛH → 3He + π− and the charge-conjugate process). The measured values τ = [253 ± 11 (stat) ± 6 (syst)] ps and BΛ = [102 ± 63 (stat) ± 67 (syst)] keV are compatible with predictions from effective field theories and confirm that the 3ΛH structure is consistent with a weakly bound system.
The production of inclusive, prompt and non-prompt J/ψ was studied for the first time at midrapidity (−1.37 < ycms < 0.43) in p-Pb collisions at √sNN = 8.16 TeV with the ALICE detector at the LHC. The inclusive J/ψ mesons were reconstructed in the dielectron decay channel in the transverse momentum (pT) interval 0 < pT < 14 GeV/c and the prompt and non-prompt contributions were separated on a statistical basis for pT > 2 GeV/c. The study of the J/ψ mesons in the dielectron channel used for the first time in ALICE online single-electron triggers from the Transition Radiation Detector, providing a data sample corresponding to an integrated luminosity of 689 ± 13 μb−1. The proton-proton reference cross section for inclusive J/ψ was obtained based on interpolations of measured data at different centre-of-mass energies and a universal function describing the pT-differential J/ψ production cross sections. The pT-differential nuclear modification factors RpPb of inclusive, prompt, and non-prompt J/ψ are consistent with unity and described by theoretical models implementing only nuclear shadowing.
W±-boson production in p–Pb collisions at √sNN = 8.16 TeV and Pb–Pb collisions at √sNN = 5.02 TeV
()
The production of the W± bosons measured in p–Pb collisions at a centreof-mass energy per nucleon–nucleon collision √sNN = 8.16 TeV and Pb–Pb collisions at √sNN = 5.02 TeV with ALICE at the LHC is presented. The W± bosons are measured via their muonic decay channel, with the muon reconstructed in the pseudorapidity region −4 < ηµ lab < −2.5 with transverse momentum p µ T > 10 GeV/c. While in Pb–Pb collisions the measurements are performed in the forward (2.5 < yµ cms < 4) rapidity region, in p–Pb collisions, where the centre-of-mass frame is boosted with respect to the laboratory frame, the measurements are performed in the backward (−4.46 < yµ cms < −2.96) and forward (2.03 < yµ cms < 3.53) rapidity regions. The W− and W+ production cross sections, leptoncharge asymmetry, and nuclear modification factors are evaluated as a function of the muon rapidity. In order to study the production as a function of the p–Pb collision centrality, the production cross sections of the W− and W+ bosons are combined and normalised to the average number of binary nucleon–nucleon collision hNcolli. In Pb–Pb collisions, the same measurements are presented as a function of the collision centrality. Study of the binary scaling of the W±-boson cross sections in p–Pb and Pb–Pb collisions is also reported. The results are compared with perturbative QCD calculations, with and without nuclear modifications of the Parton Distribution Functions (PDFs), as well as with available data at the LHC. Significant deviations from the theory expectations are found in the two collision systems, indicating that the measurements can provide additional constraints for the determination of nuclear PDFs and in particular of the light-quark distributions.
Measurement of anti-3He nuclei absorption in matter and impact on their propagation in the Galaxy
()
In our Galaxy, light antinuclei composed of antiprotons and antineutrons can be produced through high-energy cosmic-ray collisions with the interstellar medium or could also originate from the annihilation of dark-matter particles that have not yet been discovered. On Earth, the only way to produce and study antinuclei with high precision is to create them at high-energy particle accelerators. Although the properties of elementary antiparticles have been studied in detail, the knowledge of the interaction of light antinuclei with matter is limited. We determine the disappearance probability of 3He when it encounters matter particles and annihilates or disintegrates within the ALICE detector at the Large Hadron Collider. We extract the inelastic interaction cross section, which is then used as an input to the calculations of the transparency of our Galaxy to the propagation of 3He stemming from dark-matter annihilation and cosmic-ray interactions within the interstellar medium. For a specifc dark-matter profle, we estimate a transparency of about 50%, whereas it varies with increasing 3He momentum from 25% to 90% for cosmic-ray sources. The results indicate that 3He nuclei can travel long distances in the Galaxy, and can be used to study cosmic-ray interactions and dark-matter annihilation.
One of the key challenges for nuclear physics today is to understand from first principles the effective interaction between hadrons with different quark content. First successes have been achieved using techniques that solve the dynamics of quarks and gluons on discrete space-time lattices1,2. Experimentally, the dynamics of the strong interaction have been studied by scattering hadrons off each other. Such scattering experiments are difficult or impossible for unstable hadrons3,4,5,6 and so high-quality measurements exist only for hadrons containing up and down quarks7. Here we demonstrate that measuring correlations in the momentum space between hadron pairs8,9,10,11,12 produced in ultrarelativistic proton–proton collisions at the CERN Large Hadron Collider (LHC) provides a precise method with which to obtain the missing information on the interaction dynamics between any pair of unstable hadrons. Specifically, we discuss the case of the interaction of baryons containing strange quarks (hyperons). We demonstrate how, using precision measurements of proton–omega baryon correlations, the effect of the strong interaction for this hadron–hadron pair can be studied with precision similar to, and compared with, predictions from lattice calculations13,14. The large number of hyperons identified in proton–proton collisions at the LHC, together with accurate modelling15 of the small (approximately one femtometre) inter-particle distance and exact predictions for the correlation functions, enables a detailed determination of the short-range part of the nucleon-hyperon interaction.
Measurements of the production of electrons from heavy-flavour hadron decays in pp collisions at s√=13 TeV at midrapidity with the ALICE detector are presented down to a transverse momentum (pT) of 0.2 GeV/c and up to pT=35 GeV/c, which is the largest momentum range probed for inclusive electron measurements in ALICE. In p−Pb collisions, the production cross section and the nuclear modification factor of electrons from heavy-flavour hadron decays are measured in the pT range 0.5<pT<26 GeV/c at sNN−−−√=8.16 TeV. The nuclear modification factor is found to be consistent with unity within the statistical and systematic uncertainties. In both collision systems, first measurements of the yields of electrons from heavy-flavour hadron decays in different multiplicity intervals normalised to the multiplicity-integrated yield (self-normalised yield) at midrapidity are reported as a function of the self-normalised charged-particle multiplicity estimated at midrapidity. The self-normalised yields in pp and p−Pb collisions grow faster than linear with the self-normalised multiplicity. A strong pT dependence is observed in pp collisions, where the yield of high-pT electrons increases faster as a function of multiplicity than the one of low-pT electrons. The measurement in p−Pb collisions shows no pT dependence within uncertainties. The self-normalised yields in pp and p−Pb collisions are compared with measurements of other heavy-flavour, light-flavour, and strange particles, and with Monte Carlo simulations.
The correlations between different moments of two flow amplitudes, extracted with the recently developed asymmetric cumulants, are measured in Pb-Pb collisions at √sNN = 5.02 TeV recorded by the ALICE detector at the CERN Large Hadron Collider. The magnitudes of the measured observables show a dependence on the different moments as well as on the collision centrality, indicating the presence of nonlinear response in all even moments up to the eighth. Furthermore, the higher-order asymmetric cumulants show different signatures than the symmetric and lower-order asymmetric cumulants. Comparisons with state-of-the-art event generators using two different parametrizations obtained from Bayesian optimization show differences between data and simulations in many of the studied observables, indicating a need for further tuning of the models behind those event generators. These results provide new and independent constraints on the initial conditions and transport properties of the system created in heavy-ion collisions.