Refine
Year of publication
Document Type
- Preprint (692)
- Article (485)
- Working Paper (3)
- Part of Periodical (1)
Language
- English (1181)
Has Fulltext
- yes (1181)
Is part of the Bibliography
- no (1181)
Keywords
- Heavy Ion Experiments (21)
- Hadron-Hadron Scattering (11)
- Hadron-Hadron scattering (experiments) (11)
- LHC (9)
- Heavy-ion collision (6)
- ALICE experiment (4)
- Collective Flow (4)
- Jets (4)
- Quark-Gluon Plasma (4)
- ALICE (3)
- Elastic scattering (3)
- Heavy Ions (3)
- Heavy Quark Production (3)
- Jets and Jet Substructure (3)
- pp collisions (3)
- ABC Transporter (2)
- Antigen Processing (2)
- Beauty production (2)
- Charm physics (2)
- Cirrhosis (2)
- Collectivity (2)
- Correlation (2)
- Diffraction (2)
- Elliptic flow (2)
- Experimental nuclear physics (2)
- Experimental particle physics (2)
- Heavy-ion collisions (2)
- Lepton-Nucleon Scattering (experiments) (2)
- Particle Correlations and Fluctuations (2)
- Particle and resonance production (2)
- Particle correlations and fluctuations (2)
- Pb–Pb collisions (2)
- Polarization (2)
- Portal veins (2)
- QCD (2)
- Quarkonium (2)
- RHIC (2)
- Shear viscosity (2)
- Single electrons (2)
- portal hypertension (2)
- 900 GeV (1)
- ADGRE1 (1)
- ALICE detector (1)
- ATPases (1)
- Angiogenesis (1)
- Angiography (1)
- Anti-nuclei (1)
- Atomic force microscopy (1)
- B-slope (1)
- Biofluids (1)
- Biogeographical comparisons (1)
- Biomarker (1)
- Bipolar disorder (1)
- Blood (1)
- Blood plasma (1)
- Boosted Jets (1)
- CPT1A (1)
- Cancer (1)
- Cancer genetics (1)
- Cancer genomics (1)
- Centrality Class (1)
- Centrality Selection (1)
- Charged-particle multiplicity (1)
- Charm quark spatial diffusion coefficient (1)
- Charmonia (1)
- Chihuahua (1)
- Chronic hepatitis C (1)
- Climate change adaptation (1)
- Clinical variation (1)
- Coalescence (1)
- Cold nuclear matter effects (1)
- Collective Flow, (1)
- Comparison with QCD (1)
- Critical point (1)
- Cyp46a1 (1)
- Deuteron production (1)
- Di-hadron correlations (1)
- Diagnostic test (1)
- Differential diagnosis (1)
- Dissociative seizures (1)
- Dynamic Capabilities (1)
- EMR1 (1)
- Elderly (1)
- Electron-pion identification (1)
- Electroweak interaction (1)
- Entomology (1)
- Evolutionary biology (1)
- F4/80 (1)
- FOMC (1)
- Federal Reserve (1)
- Femtoscopy (1)
- Fibre/foam sandwich radiator (1)
- Flow (1)
- Forestry (1)
- Frailty (1)
- G protein-coupled receptors (1)
- Geldpolitik (1)
- General practitioners (1)
- Genetics (1)
- Genomic instability (1)
- Geochemistry (1)
- Geschichte 1979-1980 (1)
- Groomed jet radius (1)
- Groundwater (1)
- HBT (1)
- Hadron production (1)
- Hadron-Hadron Scattering Heavy (1)
- Hadron-hadron interactions (1)
- Hard Scattering (1)
- Heavy Ion Experiment (1)
- Heavy flavor production (1)
- Heavy flavour production (1)
- Heavy ion storage ring (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)
- Higher moments (1)
- Hmox1 (1)
- Hydrosocial cycle (1)
- Hypertension (1)
- Immunology (1)
- Inclusive spectra (1)
- Intensity interferometry (1)
- Interference fragmentation function (1)
- Interspecific competition (1)
- Invariant Mass Distribution (1)
- Ionisation energy loss (1)
- Ireb2 (1)
- J/ψ suppression (1)
- Jet Physics (1)
- Jet Substructure (1)
- Jet substructure (1)
- KCGS (1)
- Liver diseases (1)
- MMP14 (1)
- Madrean pine-oak forest (1)
- Major Histocompatibility Complex (MHC) (1)
- Material budget (1)
- Membrane Protein (1)
- Membrane biophysics (1)
- Microalgae (1)
- Mid-rapidity (1)
- Minimum Bias (1)
- Molecular biology (1)
- Molecular medicine (1)
- Monte Carlo (1)
- Multi-Parton Interactions (1)
- Multi-strange baryons (1)
- Multi-wire proportional drift chamber (1)
- Multiple parton interactions (1)
- Multiplex immunoassay (1)
- NAFLD (1)
- NDUFAF8 (1)
- Neural network (1)
- Niche differentiation (1)
- Noncoding RNA (1)
- Nonflow (1)
- Nuclear modification factor (1)
- Oldest-old (1)
- Orbital electron capture (1)
- PYGL (1)
- PYTHIA (1)
- Particle and Resonance Production (1)
- Paul Volcker (1)
- Pb–Pb (1)
- Peptides (1)
- Pgrmc1 (1)
- Phylogenomics (1)
- Platelets (1)
- Population genetics (1)
- Portal hypertension (1)
- Production Cross Section (1)
- Properties of Hadrons (1)
- Prostaglandin (1)
- Proton-proton collisions (1)
- Proton–proton (1)
- Proton–proton collisions (1)
- Quark Deconfinement (1)
- Quark Gluon Plasma (1)
- Quark Production (1)
- Quark gluon plasma (1)
- Rapidity Range (1)
- Reconstitution of Membrane Transporters (1)
- Reform (1)
- Relativistic heavy ion physics (1)
- Relativistic heavy-ion collisions (1)
- Reservoir (1)
- Resolution Parameter (1)
- Resource Acquisition (1)
- Resource competition (1)
- STAR (1)
- SVR (1)
- Safety (1)
- Scorpion (1)
- Serum (1)
- Single muons (1)
- Single particle decay spectroscopy (1)
- Slc11a2 (1)
- Slc25a37 (1)
- SoftDrop (1)
- Spin alignment (1)
- Splitting function (1)
- Status epilepticus (1)
- Systematic Uncertainty (1)
- TGR(mREN2)27 (1)
- TR (1)
- Temporal lobe epilepsy (1)
- Tfrc (1)
- Thermal model (1)
- Thrombosis (1)
- Thromboxane (1)
- Time Projection Chamber (1)
- Tracking (1)
- Transition radiation detector (1)
- Transporter (1)
- Transverse momentum (1)
- Transversity (1)
- Trigger (1)
- Two body weak decay (1)
- USA / Board of Governors of the Federal Reserve System (1)
- Vaejovis mcwesti (1)
- Vaejovis mexicanus group (1)
- Vaejovis montanus (1)
- Vaejovis sierrae (1)
- Vector Boson Production (1)
- Veins (1)
- Venture Capital (1)
- Water chemistry (1)
- Water transport (1)
- Western diet (1)
- White blood cells (1)
- Xenon-based gas mixture (1)
- acute-on-chronic liver failure (ACLF) (1)
- aging (1)
- associative memory (1)
- attention (1)
- beta‐trace protein (1)
- biogeographic legaciese (1)
- biological invasions (1)
- biomarker (1)
- chemogenomic set (1)
- cirrhosis (1)
- complex I deficiency (1)
- cystatin C (1)
- dE/dx (1)
- data science (1)
- decompensated liver cirrhosis (1)
- dementia (1)
- detector (1)
- drug discovery (1)
- druggable genome (1)
- ectosomes (1)
- encoding strategies (1)
- exosomes (1)
- experimental results (1)
- extracellular vesicles (1)
- fMRI (1)
- face-name association task (1)
- forest classification (1)
- forest functional similarity (1)
- functional traits (1)
- genes for longevity (1)
- guidelines (1)
- heavy ion experiments (1)
- immunity (1)
- increased vigour (1)
- inflammation (1)
- interference (1)
- intrinsic vs extrinsic factors (1)
- invasion success (1)
- iron overload versus deprivation (1)
- kinase inhibitor (1)
- lipids (1)
- liver fibrosis (1)
- machine learning (1)
- macrophage (1)
- mexicanus group (1)
- microparticles (1)
- microvesicles (1)
- minimal information requirements (1)
- mitochondrial disease (1)
- molecular diagnosis (1)
- monetary reform (1)
- monocyte chemotactic protein 1 (MCP-1) (1)
- neurodegeneration (1)
- new species (1)
- nucleotide metabolism (1)
- operating procedures (1)
- p+p collisions (1)
- phenotypic screening (1)
- phylogenetic community distance (1)
- preadaptation (1)
- protein kinase (1)
- quark gluon plasma (1)
- renal function (1)
- reproducibility (1)
- rigor (1)
- schizophrenia (1)
- schizophrenia spectrum (1)
- scorpion (1)
- senescence (1)
- signal transduction (1)
- small molecules (1)
- spectra (1)
- standardization (1)
- synuclein (1)
- systematics (1)
- taxonomy (1)
- transjugular intrahepatic portosystemic shunt (TIPS) (1)
- tropical forests (1)
- understudied kinase (1)
- working memory (1)
- √sN N = 2.76 TeV (1)
Institute
Measurements of identified hadrons as a function of the charged-particle multiplicity in pp collisions enable a search for the onset of collective effects in small collision systems. With such measurements, it is possible to study the mechanisms that determine the shapes of hadron transverse momentum (pT) spectra, to search for possible modifications of the yields of short-lived hadronic resonances due to scattering effects in the hadron-gas phase, and to investigate different explanations for the multiplicity evolution of strangeness production provided by phenomenological models. In this paper, these topics are addressed through measurements of the K∗(892)0 and ϕ(1020) mesons at midrapidity in pp collisions at s√ = 13 TeV as a function of the charged-particle multiplicity. The results include the pT spectra, pT-integrated yields, mean transverse momenta, and the ratios of the yields of these resonances to those of longer-lived hadrons. Comparisons with results from other collision systems and energies, as well as predictions from phenomenological models, are also discussed.
The cross section of jets reconstructed from charged particles is measured in the transverse momentum range of 5<pT<100 GeV/c in pp collisions at the center-of-mass energy of s√=5.02 TeV with the ALICE detector. The jets are reconstructed using the anti-kT algorithm with resolution parameters R=0.2, 0.3, 0.4, and 0.6 in the pseudorapidity range |η|<0.9−R. The charged jet cross sections are compared with the leading order (LO) and to next-to-leading order (NLO) perturbative Quantum ChromoDynamics (pQCD) calculations. It was found that the NLO calculations agree better with the measurements. The cross section ratios for different resolution parameters were also measured. These ratios increase from low pT to high pT and saturate at high pT, indicating that jet collimation is larger at high pT than at low pT. These results provide a precision test of pQCD predictions and serve as a baseline for the measurement in Pb−Pb collisions at the same energy to quantify the effects of the hot and dense medium created in heavy-ion collisions at the LHC.
The cross section of jets reconstructed from charged particles is measured in the transverse momentum range of 5<pT<100 GeV/c in pp collisions at the center-of-mass energy of s√=5.02 TeV with the ALICE detector. The jets are reconstructed using the anti-kT algorithm with resolution parameters R=0.2, 0.3, 0.4, and 0.6 in the pseudorapidity range |η|<0.9−R. The charged jet cross sections are compared with the leading order (LO) and to next-to-leading order (NLO) perturbative Quantum ChromoDynamics (pQCD) calculations. It was found that the NLO calculations agree better with the measurements. The cross section ratios for different resolution parameters were also measured. These ratios increase from low pT to high pT and saturate at high pT, indicating that jet collimation is larger at high pT than at low pT. These results provide a precision test of pQCD predictions and serve as a baseline for the measurement in Pb−Pb collisions at the same energy to quantify the effects of the hot and dense medium created in heavy-ion collisions at the LHC.
Production cross sections of muons from semi-leptonic decays of charm and beauty hadrons were measured at forward rapidity (2.5<y<4) in proton--proton (pp) collisions at a centre-of-mass energy s√=5.02 TeV with the ALICE detector at the CERN LHC. The results were obtained in an extended transverse momentum interval, 2<pT<20 GeV/c, and with an improved precision compared to previous measurements performed in the same rapidity interval at centre-of-mass energies s√=2.76 and 7 TeV. The pT- and y-differential production cross sections as well as the pT-differential production cross section ratios between different centre-of-mass energies and different rapidity intervals are described, within experimental and theoretical uncertainties, by predictions based on perturbative QCD.
Production cross sections of muons from semi-leptonic decays of charm and beauty hadrons were measured at forward rapidity (2.5<y<4) in proton--proton (pp) collisions at a centre-of-mass energy s√=5.02 TeV with the ALICE detector at the CERN LHC. The results were obtained in an extended transverse momentum interval, 2<pT<20 GeV/c, and with an improved precision compared to previous measurements performed in the same rapidity interval at centre-of-mass energies s√=2.76 and 7 TeV. The pT- and y-differential production cross sections as well as the pT-differential production cross section ratios between different centre-of-mass energies and different rapidity intervals are described, within experimental and theoretical uncertainties, by predictions based on perturbative QCD.
The jet radial structure and particle transverse momentum (pT) composition within jets are presented in centrality-selected Pb-Pb collisions at sNN−−−√ = 2.76 TeV. Track-based jets, which are also called charged jets, were reconstructed with a resolution parameter of R=0.3 at midrapidity |ηchjet|<0.6 for transverse momenta pT,chjet=30-120 GeV/c. Jet-hadron correlations in relative azimuth and pseudorapidity space (Δφ, Δη) are measured to study the distribution of the associated particles around the jet axis for different pT,assoc-ranges between 1 and 20 GeV/c. The data in Pb-Pb collisions are compared to reference distributions for pp collisions, obtained using embedded PYTHIA simulations. The number of high-pT associate particles (4<pT,assoc<20 GeV/c) in Pb-Pb collisions is found to be suppressed compared to the reference by 30 to 10%, depending on centrality. The radial particle distribution relative to the jet axis shows a moderate modification in Pb-Pb collisions with respect to PYTHIA. High-pT associate particles are slightly more collimated in Pb-Pb collisions compared to the reference, while low-pT associate particle tend to be broadened. The results, which are presented for the first time down to pT,chjet=30 GeV/c in Pb-Pb collisions, are compatible with both previous jet-hadron-related measurements from the CMS Collaboration and jet shape measurements from the ALICE Collaboration at higher pT, and add further support for the established picture of in-medium parton energy loss.
The jet radial structure and particle transverse momentum (pT) composition within jets are presented in centrality-selected Pb−Pb collisions at sNN−−−√ = 2.76 TeV. Track-based jets, which are also called charged jets, were reconstructed with a resolution parameter of R=0.3 at midrapidity |ηchjet|<0.6 for transverse momenta pT,chjet=30-120 GeV/c. Jet−hadron correlations in relative azimuth and pseudorapidity space (Δφ, Δη) are measured to study the distribution of the associated particles around the jet axis for different pT,assoc-ranges between 1 and 20 GeV/c. The data in Pb−Pb collisions are compared to reference distributions for pp collisions, obtained using embedded PYTHIA simulations. The number of high-pT associate particles (4<pT,assoc<20 GeV/c) in Pb−Pb collisions is found to be suppressed compared to the reference by 30 to 10\%, depending on centrality. The radial particle distribution relative to the jet axis shows a moderate modification in Pb−Pb collisions with respect to PYTHIA. High-pT associate particles are slightly more collimated in Pb−Pb collisions compared to the reference, while low-pT associate particle tend to be broadened. The results, which are compatible with both previous jet−hadron-related measurements from the CMS Collaboration and jet shape measurements from the ALICE Collaboration at higher pT, support the currently established picture of in-medium parton energy loss.
This work presents the first experimental observation of the attractive strong interaction between a proton and a multi-strange baryon (hyperon) Ξ−. The result is extracted from two-particle correlations of combined p−Ξ−⊕p¯¯¯−Ξ¯¯¯¯+ pairs measured in p-Pb collisions at sNN−−−√=5.02 TeV at the LHC with ALICE. The measured correlation function is compared with the prediction obtained assuming only an attractive Coulomb interaction and a standard deviation in the range [3.6,5.3] is found. Since the measured p−Ξ−⊕p¯¯¯−Ξ¯¯¯¯+ correlation is significantly enhanced with respect to the Coulomb prediction, the presence of an additional, strong, attractive interaction is evident. The data are compatible with recent lattice calculations by the HAL-QCD Collaboration, with a standard deviation in the range [1.8,3.7]. The lattice potential predicts a shallow repulsive Ξ− interaction within pure neutron matter at saturation densities and this implies stiffer equations of state for neutron-rich matter including hyperons. Implications of the strong interaction for the modeling of neutron stars are discussed.
This Letter presents the first experimental observation of the attractive strong interaction between a proton and a multistrange baryon (hyperon) Ξ−. The result is extracted from two-particle correlations of combined p−Ξ−⊕¯p−¯Ξ+ pairs measured in p−Pb collisions at √sNN=5.02 TeV at the LHC with ALICE. The measured correlation function is compared with the prediction obtained assuming only an attractive Coulomb interaction and a standard deviation in the range [3.6, 5.3] is found. Since the measured p−Ξ−⊕¯p−¯Ξ+ correlation is significantly enhanced with respect to the Coulomb prediction, the presence of an additional, strong, attractive interaction is evident. The data are compatible with recent lattice calculations by the HAL-QCD Collaboration, with a standard deviation in the range [1.8, 3.7]. The lattice potential predicts a shallow repulsive Ξ− interaction within pure neutron matter and this implies stiffer equations of state for neutron-rich matter including hyperons. Implications of the strong interaction for the modeling of neutron stars are discussed.
This work presents the first experimental observation of the attractive strong interaction between a proton and a multi-strange baryon (hyperon) Ξ−. The result is extracted from two-particle correlations of combined p−Ξ−⊕p¯−Ξ¯+ pairs measured in p-Pb collisions at sNN−−−√=5.02 TeV at the LHC with ALICE. The measured correlation function is compared with the prediction obtained assuming only an attractive Coulomb interaction and a standard deviation in the range [3.6,5.3] is found. Since the measured p−Ξ−⊕p¯−Ξ¯+ correlation is significantly enhanced with respect to the Coulomb prediction, the presence of an additional, strong, attractive interaction is evident. The data are compatible with recent lattice calculations by the HAL-QCD Collaboration, with a standard deviation in the range [1.8,3.7]. The lattice potential predicts a shallow repulsive Ξ− interaction within pure neutron matter at saturation densities and this implies stiffer equations of state for neutron-rich matter including hyperons. Implications of the strong interaction for the modeling of neutron stars are discussed.