Refine
Year of publication
Document Type
- Preprint (666)
- Article (431)
- Part of a Book (7)
- Working Paper (2)
Has Fulltext
- yes (1106)
Keywords
- Heavy Ion Experiments (20)
- Hadron-Hadron Scattering (11)
- Hadron-Hadron scattering (experiments) (11)
- LHC (9)
- Heavy-ion collision (6)
- ALICE experiment (4)
- Collective Flow (4)
- Jets (4)
- NASH (4)
- Quark-Gluon Plasma (4)
- ALICE (3)
- Ausdruck (3)
- Heavy Ions (3)
- Jets and Jet Substructure (3)
- NAFLD (3)
- inflammation (3)
- portal hypertension (3)
- pp collisions (3)
- Beauty production (2)
- Benjamin, Walter (2)
- Charm physics (2)
- Experimental nuclear physics (2)
- Experimental particle physics (2)
- Heavy Quark Production (2)
- Lepton-Nucleon Scattering (experiments) (2)
- Musik (2)
- Particle Correlations and Fluctuations (2)
- Particle and resonance production (2)
- Particle correlations and fluctuations (2)
- Pb–Pb collisions (2)
- QCD (2)
- Single electrons (2)
- cirrhosis (2)
- liver fibrosis (2)
- steatosis (2)
- 900 GeV (1)
- A survivor from Warsaw (1)
- ACLF (1)
- ADGRE1 (1)
- ALD (1)
- ALICE detector (1)
- Angiogenesis (1)
- Angiography (1)
- Anti-nuclei (1)
- Ausdruck, Begriff (1)
- Blood (1)
- Blood plasma (1)
- Boosted Jets (1)
- Centrality Class (1)
- Centrality Selection (1)
- Cirrhosis (1)
- Collagen (1)
- Collective Flow, (1)
- Comparison with QCD (1)
- Darwin, Charles (1)
- Das Passagen-Werk (1)
- Dramaturgie (1)
- EMR1 (1)
- Einkommenselastizität (1)
- Elastic scattering (1)
- Electron-pion identification (1)
- Electroweak interaction (1)
- Elementarschadenversicherung (1)
- Elliptic flow (1)
- Engel, Johann Jakob (1)
- Erinnerung (1)
- Evolution (1)
- Extracellular matrix (1)
- F4/80 (1)
- Femtoscopy (1)
- Fibre/foam sandwich radiator (1)
- Florida (1)
- Gedenken (1)
- Genetics (1)
- Geschichte 1700-1850 (1)
- Geschichte der deutschen Sprache (1)
- Ghana (1)
- Grimm, Jacob (1)
- HBT (1)
- Hadron production (1)
- Hadron-Hadron Scattering Heavy (1)
- Hadron-hadron interactions (1)
- Hadronization (1)
- Hagelversicherung (1)
- Hard Scattering (1)
- Hausratversicherung (1)
- Heavy Ion Experiment (1)
- Heavy flavor production (1)
- Heavy flavour production (1)
- Heavy ion collisions (1)
- Heavy ions (1)
- Heavy-flavour decay muons (1)
- Heavy-flavour production (1)
- Heavy-ion collisions (1)
- Hepatic stellate cell (1)
- Inclusive spectra (1)
- Intensity interferometry (1)
- Invariant Mass Distribution (1)
- Ionisation energy loss (1)
- Jet Physics (1)
- Jet Substructure (1)
- Judenvernichtung (1)
- Klang (1)
- Kommunikationsverhalten (1)
- Komposition <Musik> (1)
- Liver fibrosis (1)
- Material budget (1)
- Mechanisms of disease (1)
- Metalloproteinases (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)
- Musikpsychologie (1)
- Musikästhetik (1)
- Nachfrage (1)
- Net-charge correlations (1)
- Net-charge fluctuations (1)
- Neural network (1)
- Nono, Luigi (1)
- Nuclear modification factor (1)
- Oper und Drama (1)
- PDE‐5‐inhibitor (1)
- PYTHIA (1)
- Paris (1)
- Particle and Resonance Production (1)
- Pb–Pb (1)
- Polarization (1)
- Portal hypertension (1)
- Portal veins (1)
- Preiselastizität (1)
- Production Cross Section (1)
- Properties of Hadrons (1)
- Proton–proton (1)
- Quark Deconfinement (1)
- Quark Gluon Plasma (1)
- Quark Production (1)
- Quark gluon plasma (1)
- Quarkonium (1)
- Rapidity Range (1)
- Relativistic heavy ion physics (1)
- Relativistic heavy-ion collisions (1)
- Resolution Parameter (1)
- Ricorda cosa ti hanno fatto in Auschwitz (1)
- Roux-en-Y gastric bypass (1)
- Sachversicherung (1)
- Schuluniform (1)
- Schätzung (1)
- Schönberg, Arnold (1)
- Single muons (1)
- Single-molecule biophysics (1)
- Sturmversicherung (1)
- Super-resolution microscopy (1)
- Systematic Uncertainty (1)
- TGF-β1 (1)
- TGR(mREN2)27 (1)
- TR (1)
- The expression of the emotions in man and animals (1)
- Time Projection Chamber (1)
- Tonsprache <Musik> (1)
- Tracking (1)
- Transition radiation detector (1)
- Transverse momentum (1)
- Trigger (1)
- Ueber musikalische Malerey (1)
- Vector Boson Production (1)
- Verbraucherverhalten (1)
- Versicherungswissenschaft (1)
- Wagner, Richard (1)
- Western diet (1)
- White blood cells (1)
- Wissenschaft (1)
- Xenon-based gas mixture (1)
- acute-on-chronic liver failure (ACLF) (1)
- acute‐on‐chronic liver failure (1)
- alcoholic fatty liver disease (1)
- animal model (1)
- bacterial translocation (1)
- caspase-1 (1)
- circulation (1)
- dE/dx (1)
- decompensated liver cirrhosis (1)
- detector (1)
- erectile dysfunction (1)
- experimental results (1)
- fibrosis (1)
- heavy ion experiments (1)
- hemodynamic (1)
- hepatic stellate cells (1)
- hepatocellular cancer (1)
- immunity (1)
- in vitro models (1)
- inflammasome (1)
- lipid droplets (1)
- lipidomics (1)
- liver steatosis (1)
- macrophage (1)
- metabolic liver disease (1)
- metabolomics (1)
- mini gastric bypass (1)
- monocyte chemotactic protein 1 (MCP-1) (1)
- mouse (1)
- non-alcoholic fatty liver disease (1)
- non‐selective beta‐blocker (1)
- one anastomosis gastric bypass (1)
- quark gluon plasma (1)
- renin-angiotensin system (1)
- spectra (1)
- transjugular intrahepatic portosystemic shunt (TIPS) (1)
- weight loss (1)
- Ästhetik (1)
- Überleben (1)
- √sN N = 2.76 TeV (1)
- fibrogenesis (1)
Institute
- Physik (1068)
- Frankfurt Institute for Advanced Studies (FIAS) (959)
- Informatik (920)
- Medizin (20)
- Biochemie und Chemie (3)
- Informatik und Mathematik (3)
- Ernst Strüngmann Institut (2)
- Hochschulrechenzentrum (2)
- MPI für Hirnforschung (2)
- Sonderforschungsbereiche / Forschungskollegs (2)
The production yield of the Λ(1520) baryon resonance is measured at mid-rapidity in Pb-Pb collisions at sNN−−−√ = 2.76 TeV with the ALICE detector at the LHC. The measurement is performed in the Λ(1520)→pK− (and charge conjugate) hadronic decay channel as a function of the transverse momentum (pT) and collision centrality. The pT-integrated production rate of Λ(1520) relative to Λ in central collisions is suppressed by about a factor of 2 with respect to peripheral collisions. This is the first observation of the suppression of a baryonic resonance at the LHC and the first 3σ evidence of Λ(1520) suppression within a single collision system. The measured Λ(1520)/Λ ratio in central collisions is smaller than the value predicted by the statistical hadronisation model calculations. The shape of the measured pT distribution and the centrality dependence of the suppression are reproduced by the EPOS3 Monte Carlo event generator. The measurement adds further support to the formation of a dense hadronic phase in the final stages of the evolution of the fireball created in heavy-ion collisions, lasting long enough to cause a significant reduction in the observable yield of short-lived resonances.
The production yield of the Λ(1520) baryon resonance is measured at mid-rapidity in Pb-Pb collisions at sNN−−−√ = 2.76 TeV with the ALICE detector at the LHC. The measurement is performed in the Λ(1520)→pK− (and charge conjugate) hadronic decay channel as a function of the transverse momentum (pT) and collision centrality. The pT-integrated production rate of Λ(1520) relative to Λ in central collisions is suppressed by about a factor of 2 with respect to peripheral collisions. This is the first observation of the suppression of a baryonic resonance at the LHC and the first 3σ evidence of Λ(1520) suppression within a single collision system. The measured Λ(1520)/Λ ratio in central collisions is smaller than the value predicted by the statistical hadronisation model calculations. The shape of the measured pT distribution and the centrality dependence of the suppression are reproduced by the EPOS3 Monte Carlo event generator. The measurement adds further support to the formation of a dense hadronic phase in the final stages of the evolution of the fireball created in heavy-ion collisions, lasting long enough to cause a significant reduction in the observable yield of short-lived resonances.
The elliptic flow of inclusive and direct photons was measured at mid-rapidity in two centrality classes 0-20% and 20-40% in Pb-Pb collisions at sNN−−−√ = 2.76 TeV by ALICE. Photons were detected with the highly segmented electromagnetic calorimeter PHOS and via conversions in the detector material with the e+e− pairs reconstructed in the central tracking system. The results of the two methods were combined and the direct photon elliptic flow was extracted in the transverse momentum range 0.9<pT<6.2 GeV/c. A comparison to RHIC data shows a similar magnitude of the measured direct-photon elliptic flow. Hydrodynamic and transport model calculations are systematically lower than the data, but are found to be compatible.
The elliptic flow of inclusive and direct photons was measured at mid-rapidity in two centrality classes 0-20% and 20-40% in Pb-Pb collisions at sNN−−−√ =2.76 TeV by ALICE. Photons were detected with the highly segmented electromagnetic calorimeter PHOS and via conversions in the detector material with the e+e− pairs reconstructed in the central tracking system. The results of the two methods were combined and the direct photon elliptic flow was extracted in the transverse momentum range 0.9<pT<6.2 GeV/c. We test the hypothesis vγ,dir2≡0 for 0.9<pT<2.1 GeV/c and obtain a significance of 1.4σ for the 0-20% class and 1.0σ for the 20-40% class. A comparison to RHIC data shows a similar magnitude of the measured elliptic flow, while hydrodynamic and transport model calculations predict a smaller flow than observed.
We present measurements of two-particle differential number correlation functions R2 and transverse momentum correlation functions P2, obtained from p-Pb collisions at 5.02 TeV and Pb-Pb collisions at 2.76 TeV. The results are obtained using charged particles in the pseudorapidity range |η|< 1.0, and transverse momentum range 0.2<pT<2.0 GeV/c as a function of pair separation in pseudorapidity, |Δη|, azimuthal angle, Δφ, and for several charged-particle multiplicity classes. Measurements are carried out for like-sign and unlike-sign charged-particle pairs separately and combined to obtain charge-independent and charge-dependent correlation functions. We study the evolution of the width of the near-side peak of these correlation functions with collision centrality. Additionally, we study Fourier decompositions of the correlators in Δφ as a function of the pair separation |Δη|. Significant differences in the dependence of their harmonic coefficients on multiplicity classes are found. These differences can be exploited, in theoretical models, to obtain further insight into charged-particle production and transport in heavy-ion collisions. Moreover, an upper limit of non-flow contributions to flow coefficients vn measured in Pb-Pb collisions based on the relative strength of Fourier coefficients measured in p-Pb interactions is estimated.
Neutral pion and η meson invariant differential yields were measured in non-single diffractive p-Pb collisions at sNN−−−√=5.02 TeV with the ALICE experiment at the CERN LHC. The analysis combines results from three complementary photon measurements, utilizing the PHOS and EMCal calorimeters and the Photon Conversion Method. The invariant differential yields of π0 and η meson inclusive production are measured near mid-rapidity in a broad transverse momentum range of 0.3<pT<20 GeV/c and 0.7<pT<20 GeV/c, respectively. The measured η/π0 ratio increases with pT and saturates for pT>4 GeV/c at 0.483±0.015stat±0.015sys. A deviation from mT scaling is observed for pT<2 GeV/c. The measured η/π0 ratio is consistent with previous measurements from proton-nucleus and pp collisions over the full pT range. The measured η/π0 ratio at high pT also agrees within uncertainties with measurements from nucleus-nucleus collisions. The π0 and η yields in p-Pb relative to the scaled pp interpolated reference, RpPb, are presented for 0.3<pT<20 GeV/c and 0.7<pT<20 GeV/c, respectively. The results are compared with theoretical model calculations. The values of RpPb are consistent with unity for transverse momenta above 2 GeV/c. These results support the interpretation that the suppressed yield of neutral mesons measured in Pb-Pb collisions at LHC energies is due to parton energy loss in the hot QCD medium.
Neutral pion and η meson invariant differential yields were measured in non-single diffractive p-Pb collisions at sNN−−−√=5.02 TeV with the ALICE experiment at the CERN LHC. The analysis combines results from three complementary photon measurements, utilizing the PHOS and EMCal calorimeters and the Photon Conversion Method. The invariant differential yields of π0 and η meson inclusive production are measured near mid-rapidity in a broad transverse momentum range of 0.3<pT<20 GeV/c and 0.7<pT<20 GeV/c, respectively. The measured η/π0 ratio increases with pT and saturates for pT>4 GeV/c at 0.483±0.015stat±0.015sys. A deviation from mT scaling is observed for pT<2 GeV/c. The measured η/π0 ratio is consistent with previous measurements from proton-nucleus and pp collisions over the full pT range. The measured η/π0 ratio at high pT also agrees within uncertainties with measurements from nucleus-nucleus collisions. The π0 and η yields in p-Pb relative to the scaled pp interpolated reference, RpPb, are presented for 0.3<pT<20 GeV/c and 0.7<pT<20 GeV/c, respectively. The results are compared with theoretical model calculations. The values of RpPb are consistent with unity for transverse momenta above 2 GeV/c. These results support the interpretation that the suppressed yield of neutral mesons measured in Pb-Pb collisions at LHC energies is due to parton energy loss in the hot QCD medium.
Neutral pion and η meson production in the transverse momentum range 1 < pT < 20 GeV/c have been measured at mid-rapidity by the ALICE experiment at the Large Hadron Collider (LHC) in central and semi-central Pb-Pb collisions at sNN−−−−√ = 2.76 TeV. These results were obtained using the photon conversion method as well as the PHOS and EMCal detectors. The results extend the upper pT reach of the previous ALICE π0 measurements from 12 GeV/c to 20 GeV/c and present the first measurement of η meson production in heavy-ion collisions at the LHC. The η/π0 ratio is similar for the two centralities and reaches at high pT a plateau value of 0.457 ± 0.013stat ± 0.018syst. A suppression of similar magnitude for π0 and η meson production is observed in Pb-Pb collisions with respect to their production in pp collisions scaled by the number of binary nucleon-nucleon collisions. We discuss the results in terms of NLO pQCD predictions and hydrodynamic models. The measurements show a stronger suppression with respect to what was observed at lower center-of-mass energies in the pT range 6 < pT < 10 GeV/c. At pT < 3 GeV/c, hadronization models describe the π0 results while for the η some tension is observed.
Neutral pion and η meson production in the transverse momentum range 1 < pT < 20 GeV/c have been measured at mid-rapidity by the ALICE experiment at the Large Hadron Collider (LHC) in central and semi-central Pb-Pb collisions at sNN−−−−√ = 2.76 TeV. These results were obtained using the photon conversion method as well as the PHOS and EMCal detectors. The results extend the upper pT reach of the previous ALICE π0 measurements from 12 GeV/c to 20 GeV/c and present the first measurement of η meson production in heavy-ion collisions at the LHC. The η/π0 ratio is similar for the two centralities and reaches at high pT a plateau value of 0.457 ± 0.013stat ± 0.018syst. A suppression of similar magnitude for π0 and η meson production is observed in Pb-Pb collisions with respect to their production in pp collisions scaled by the number of binary nucleon-nucleon collisions. We discuss the results in terms of NLO pQCD predictions and hydrodynamic models. The measurements show a stronger suppression with respect to what was observed at lower center-of-mass energies in the pT range 6 < pT < 10 GeV/c. At pT < 3 GeV/c, hadronization models describe the π0 results while for the η some tension is observed.
Neutral pion and η meson production in the transverse momentum range 1 < pT < 20 GeV/c have been measured at mid-rapidity by the ALICE experiment at the Large Hadron Collider (LHC) in central and semi-central Pb-Pb collisions at sNN−−−−√ = 2.76 TeV. These results were obtained using the photon conversion method as well as the PHOS and EMCal detectors. The results extend the upper pT reach of the previous ALICE π0 measurements from 12 GeV/c to 20 GeV/c and present the first measurement of η meson production in heavy-ion collisions at the LHC. The η/π0 ratio is similar for the two centralities and reaches at high pT a plateau value of 0.457 ± 0.013stat ± 0.018syst. A suppression of similar magnitude for π0 and η meson production is observed in Pb-Pb collisions with respect to their production in pp collisions scaled by the number of binary nucleon-nucleon collisions. We discuss the results in terms of NLO pQCD predictions and hydrodynamic models. The measurements show a stronger suppression with respect to what was observed at lower center-of-mass energies in the pT range 6 < pT < 10 GeV/c. At pT < 3 GeV/c, hadronization models describe the π0 results while for the η some tension is observed.