Refine
Year of publication
Document Type
- Preprint (579)
- Article (370)
- Working Paper (3)
- Conference Proceeding (2)
- Part of a Book (1)
Language
- English (955) (remove)
Has Fulltext
- yes (955) (remove)
Is part of the Bibliography
- no (955)
Keywords
- Heavy Ion Experiments (18)
- Hadron-Hadron scattering (experiments) (11)
- Heavy-ion collision (6)
- LHC (6)
- Kollisionen schwerer Ionen (5)
- Hadron-Hadron Scattering (4)
- Quark-Gluon Plasma (4)
- heavy ion collisions (4)
- ALICE experiment (3)
- Heavy Ions (3)
- Jets and Jet Substructure (3)
- Quark Gluon Plasma (3)
- Accelerators & Beams (2)
- Atomic, Molecular & Optical (2)
- Beauty production (2)
- Charm physics (2)
- Experimental nuclear physics (2)
- Experimental particle physics (2)
- Fragmentation (2)
- Jets (2)
- Lepton-Nucleon Scattering (experiments) (2)
- Particle and resonance production (2)
- Particle correlations and fluctuations (2)
- Pb–Pb collisions (2)
- Psychiatric disorders (2)
- QGP (2)
- Quark-Gluon-Plasma (2)
- RNA interference (RNAi) (2)
- Single electrons (2)
- UrQMD Modell (2)
- peptide aptamer (PA) (2)
- pp collisions (2)
- quark-gluon-plasma (2)
- signal transducer and activator of transcription 5 (Stat5) (2)
- 16S rRNA sequencing (1)
- ADAMTS-13 (1)
- ADHD (1)
- ALICE (1)
- ALICE detector (1)
- AO-PCCF (1)
- ATR-FTIR (1)
- Abundance (1)
- Accelerators & storage rings (1)
- Acute coronary syndrome (1)
- Anemia (1)
- Anonymity (1)
- Anti-kaon–nucleon physics (1)
- Anti-nuclei (1)
- Anticoagulation (1)
- Aortic valve (1)
- Aortic valve replacement (1)
- Atomic & molecular beams (1)
- Atomic and Molecular Physics (1)
- Atrial fibrillation (1)
- Autecology (1)
- Bcr-Abl (1)
- Beam loss (1)
- Biofuel (1)
- Bleeding (1)
- Blood loss (1)
- Blood transfusion (1)
- Breast cancer (1)
- Butanol (1)
- COVID-19 (1)
- Cardiac troponin (1)
- Centrality Class (1)
- Centrality Selection (1)
- Charge-transfer collisions (1)
- Circular accelerators (1)
- Clinical Trials and Observations (1)
- Clinical genetics (1)
- Collective Flow (1)
- Competition (1)
- DTI (1)
- Dark Trading (1)
- Difficult Airway Management (1)
- Ehrlich pathway (1)
- Electron-pion identification (1)
- Electronic transitions (1)
- Electroweak interaction (1)
- Elliptic flow (1)
- Energie (1)
- Epilepsy (1)
- Equation of state (1)
- Exosomes (1)
- Experimental autoimmune encephalomyelitis (1)
- Feeding types (1)
- Fermentation (1)
- Fibre/foam sandwich radiator (1)
- Freshwater (1)
- Genetic engineering (1)
- HER2-positive (1)
- Hadron-Hadron Scattering Heavy (1)
- Hadron-hadron interactions (1)
- Heavy Ion Experiment (1)
- Heavy Quark Production (1)
- Heavy flavor production (1)
- Heavy ion collisions (1)
- Heavy ion storage ring (1)
- Heavy ions (1)
- Heavy-flavour decay muons (1)
- Heavy-flavour production (1)
- Hemostasis (1)
- Human behaviour (1)
- INR (1)
- Immediacy (1)
- In-Hospital Emergencies (1)
- Inflammation (1)
- International normalized ratio (1)
- Invariant Mass Distribution (1)
- Ionisation energy loss (1)
- Isobutanol (1)
- J/ϕ (1)
- Jak2(V617F) (1)
- Kaonic nuclei (1)
- Laryngeal Tube (1)
- Liquidity (1)
- Local thermodynamical equilibrium (1)
- Low & intermediate-energy accelerators (1)
- Low energy QCD (1)
- Lymphoid Neoplasia (1)
- Market Quality (1)
- Market Structure (1)
- Mice (1)
- MicroRNAs (1)
- Microplastic-biota interaction (1)
- Mid-rapidity (1)
- Minimum Bias (1)
- Molecular neuroscience (1)
- Monte Carlo (1)
- Monte-Carlo model for relativistic heavy ion collisions (1)
- Multi-strange baryons (1)
- Multi-wire proportional drift chamber (1)
- Myocardial infarction (1)
- NMR spectroscopy (1)
- Neoadjuvant therapy (1)
- Neonatal brain damage (1)
- Neural circuits (1)
- Neural network (1)
- Nichtgleichgewicht (1)
- Non-equilibrium effects (1)
- Orbital electron capture (1)
- Partial wave analysis (1)
- Particle Correlations and Fluctuations (1)
- Pathological complete response (1)
- Patient blood management (1)
- Personalized medicine (1)
- Photon counting (1)
- Plastic polymers (1)
- Point-of-care testing (1)
- Polarization (1)
- Polymers (1)
- Predictive markers (1)
- Preference for early resolution of uncertainty (1)
- Production Cross Section (1)
- Properties of Hadrons (1)
- Proton–proton (1)
- Pyrolysis GC–MS (1)
- QCD (1)
- QGP signals (1)
- QMD Modell (1)
- QMD model (1)
- Quark Production (1)
- Quark gluon plasma (1)
- Radiation detectors (1)
- Rapidity Range (1)
- Relativistic heavy ion physics (1)
- Relativistic heavy-ion collisions (1)
- Resolution Parameter (1)
- SARS-CoV-2 (1)
- SPS (1)
- Saccharomyces (1)
- Single particle decay spectroscopy (1)
- Statistical model (1)
- Supraglottic Airway Devices (1)
- Suspended solids (1)
- Systematic Uncertainty (1)
- TBSS (1)
- TR (1)
- Time Projection Chamber (1)
- Tracking (1)
- Transcatheter based aortic valve implantation (1)
- Transition radiation detector (1)
- Trigger (1)
- Triple negative (1)
- Two body weak decay (1)
- URQMD (1)
- Ultra-relativistic Quantum Molecular Dynamics model (1)
- Ultrarelativistic Quantum Molecular Dynamics (1)
- Ultrarelativistic Quantum Molecular Model (1)
- Ultrarelativistisches Quant Molekulares Modell (1)
- UrQMD model (1)
- Valine biosynthesis (1)
- Vector (1)
- Vector Boson Production (1)
- Visual analysis (1)
- Xenon-based gas mixture (1)
- Yeast (1)
- Zustandsgleichung (1)
- accessory proteins (1)
- antibodies (1)
- asparaginyl endopepdidase (AEP) (1)
- asset pricing (1)
- attention (1)
- b-cell lymphomas (1)
- bendamustine (1)
- canonical/non-canonical (1)
- cardiac surgery (1)
- cardiovascular pharmacology (1)
- cell-free protein synthesis (1)
- chemokines (1)
- chemotherapy regimen (1)
- chimeric antigen receptor t-cell therapy (1)
- chimeric antigen receptors (1)
- chronic hypoxia (1)
- chronic myeloid leukemia (CML) (1)
- cross-section of expected stock returns (1)
- dE/dx (1)
- development (1)
- dileptons (1)
- ectosomes (1)
- energy (1)
- equation of state (1)
- exosomes (1)
- extracellular vesicles (1)
- flow (1)
- functional magnetic resonance imaging (fMRI) (1)
- glycolysis (1)
- guidelines (1)
- hadron hadron Kollision (1)
- hadron hadron collision (1)
- heart failure (1)
- heavy ion experiments (1)
- heavy ions (1)
- hematopoietic stem cell transplantation (1)
- hemispherotomy (1)
- human erythroid leukemia (HEL) (1)
- humoral factors (1)
- hyperactivity (1)
- hypoparathyroidism (1)
- implied volatility (1)
- impulsivity (1)
- indication (1)
- inhibition of DNA-binding (1)
- interleukin-6 (1)
- intrinsically disordered region (1)
- juvenile brain lesion (1)
- legumain (1)
- leukapheresis (1)
- lokales thermodynamisches Gleichgewicht (1)
- lower leg fracture (1)
- lymphoma (1)
- microbiome (1)
- microparticles (1)
- microvesicles (1)
- minimal information requirements (1)
- molecular mechanisms (1)
- multiple myeloma (1)
- multiple sclerosis (1)
- nonstructural proteins (1)
- object tracking (1)
- pancreatic cancer (1)
- pancreatic surgery (1)
- particle ratios (1)
- plasticity (1)
- polygenic risk score (1)
- postoperative complications (1)
- ppK − (1)
- propofol anesthesia (1)
- prostate and breast cancer cell lines (1)
- protein transduction (1)
- protein/lentiviral transduction (1)
- quark gluon plasma (1)
- recurrent laryngeal nerve palsy (1)
- registry (1)
- relativistic (1)
- relativistische (1)
- remodelling (1)
- remote ischemic preconditioning (1)
- reproducibility (1)
- rigor (1)
- rituximab (1)
- schwere Ione (1)
- selective attention (1)
- spectra (1)
- standardization (1)
- strangeness (1)
- structural proteins (1)
- substance abuse disorder (1)
- therapy (1)
- thermalization (1)
- thrombotic microangiopathy (1)
- thrombotic thrombocytopenic purpura (1)
- thyroid resection (1)
- tibial fracture (1)
- toddler’s fracture (1)
- vascular surgery (1)
- venturesomeness (1)
- visuo-spatial attention (1)
- von Willebrand factor (1)
- x-ray techniques (1)
- yeast-two-hybrid (Y2H) (1)
Institute
- Physik (909)
- Frankfurt Institute for Advanced Studies (FIAS) (811)
- Informatik (775)
- Medizin (33)
- Center for Financial Studies (CFS) (3)
- ELEMENTS (3)
- Hochschulrechenzentrum (3)
- Informatik und Mathematik (3)
- Wirtschaftswissenschaften (3)
- Biowissenschaften (2)
The first experimental information on the strong interaction between Λ and Ξ− strange baryons is presented in this Letter. The correlation function of Λ−Ξ− and Λ¯¯¯¯−Ξ¯¯¯¯+ pairs produced in high-multiplicity proton-proton (pp) collisions at s√ = 13 TeV at the LHC is measured as a function of the relative momentum of the pair. The femtoscopy method is used to calculate the correlation function, which is then compared with theoretical expectations obtained using a meson exchange model, chiral effective field theory, and Lattice QCD calculations close to the physical point. Data support predictions of small scattering parameters while discarding versions with large ones, thus suggesting a weak Λ−Ξ− interaction. The limited statistical significance of the data does not yet allow one to constrain the effects of coupled channels like Σ−Ξ and N−Ω.
Fluctuation measurements are important sources of information on the mechanism of particle production at LHC energies. This article reports the first experimental results on third-order cumulants of the net-proton distributions in Pb−Pb collisions at a center-of-mass energy sNN−−−√=5.02 TeV recorded by the ALICE detector. The results on the second-order cumulants of net-proton distributions at sNN−−−√=2.76 and 5.02 TeV are also discussed in view of effects due to the global and local baryon number conservation. The results demonstrate the presence of long-range rapidity correlations between protons and antiprotons. Such correlations originate from the early phase of the collision. The experimental results are compared with HIJING and EPOS model calculations, and the dependence of the fluctuation measurements on the phase-space coverage is examined in the context of lattice quantum chromodynamics (LQCD) and hadron resonance gas (HRG) model estimations. The measured third-order cumulants are consistent with zero within experimental uncertainties of about 4% and are described well by LQCD and HRG predictions.
The interaction of K− with protons is characterised by the presence of several coupled channels, systems like K¯¯¯¯0n and πΣ with a similar mass and the same quantum numbers as the K−p state. The strengths of these couplings to the K−p system are of crucial importance for the understanding of the nature of the Λ(1405) resonance and of the attractive K−p strong interaction. In this article, we present measurements of the K−p correlation functions in relative momentum space obtained in pp collisions at s√ = 13 TeV, in p-Pb collisions at sNN−−−√ = 5.02 TeV, and (semi)peripheral Pb-Pb collisions at sNN−−−√ = 5.02 TeV. The emitting source size, composed of a core radius anchored to the K+p correlation and of a resonance halo specific to each particle pair, varies between 1 and 2 fm in these collision systems. The strength and the effects of the K¯¯¯¯0n and πΣ inelastic channels on the measured K−p correlation function are investigated in the different colliding systems by comparing the data with state-of-the-art models of chiral potentials. A novel approach to determine the conversion weights ω, necessary to quantify the amount of produced inelastic channels in the correlation function, is presented. In this method, particle yields are estimated from thermal model predictions, and their kinematic distribution from blast-wave fits to measured data. The comparison of chiral potentials to the measured K−p interaction indicates that, while the πΣ−K−p dynamics is well reproduced by the model, the coupling to the K¯¯¯¯0n channel in the model is currently underestimated.
The interaction of K− with protons is characterised by the presence of several coupled channels, systems like K¯¯¯¯0n and πΣ with a similar mass and the same quantum numbers as the K−p state. The strengths of these couplings to the K−p system are of crucial importance for the understanding of the nature of the Λ(1405) resonance and of the attractive K−p strong interaction. In this article, we present measurements of the K−p correlation functions in relative momentum space obtained in pp collisions at s√ = 13 TeV, in p-Pb collisions at sNN−−−√ = 5.02 TeV, and (semi)peripheral Pb-Pb collisions at sNN−−−√ = 5.02 TeV. The emitting source size, composed of a core radius anchored to the K+p correlation and of a resonance halo specific to each particle pair, varies between 1 and 2 fm in these collision systems. The strength and the effects of the K¯¯¯¯0n and πΣ inelastic channels on the measured K−p correlation function are investigated in the different colliding systems by comparing the data with state-of-the-art models of chiral potentials. A novel approach to determine the conversion weights ω, necessary to quantify the amount of produced inelastic channels in the correlation function, is presented. In this method, particle yields are estimated from thermal model predictions, and their kinematic distribution from blast-wave fits to measured data. The comparison of chiral potentials to the measured K−p interaction indicates that, while the πΣ−K−p dynamics is well reproduced by the model, the coupling to the K¯¯¯¯0n channel in the model is currently underestimated.
Measurements of the elliptic flow coefficient relative to the collision plane defined by the spectator neutrons v2{ΨSP} in collisions of Pb ions at center-of-mass energy per nucleon-nucleon pair sNN−−−√=2.76 TeV and Xe ions at sNN−−−√=5.44 TeV are reported. The results are presented for charged particles produced at midrapidity as a function of centrality and transverse momentum. The ratio between v2{ΨSP} and the elliptic flow coefficient relative to the participant plane v2{4}, estimated using four-particle correlations, deviates by up to 20% from unity depending on centrality. This observation differs strongly from the magnitude of the corresponding eccentricity ratios predicted by the TRENTo and the elliptic power models of initial state fluctuations that are tuned to describe the participant plane anisotropies. The differences can be interpreted as a decorrelation of the neutron spectator plane and the reaction plane because of fragmentation of the remnants from the colliding nuclei, which points to an incompleteness of current models of initial state fluctuations. A significant transverse momentum dependence of the ratio v2{ΨSP}/v2{4} is observed in all but the most central collisions, which may help to understand whether momentum anisotropies at low and intermediate transverse momentum have a common origin in initial state fluctuations. The ratios of v2{ΨSP} and v2{4} to the corresponding initial state eccentricities for Xe-Xe and Pb-Pb collisions at similar initial entropy density show a difference of (7.0±0.9)% with an additional variation of +1.8% when including RHIC data in the TRENTo parameter extraction. These observations provide new experimental constraints for viscous effects in the hydrodynamic modeling of the expanding quark-gluon plasma.
Measurements of the elliptic flow coefficient relative to the collision plane defined by the spectator neutrons v2{ΨSP} in collisions of Pb ions at center-of-mass energy per nucleon–nucleon pair sNN=2.76 TeV and Xe ions at sNN=5.44 TeV are reported. The results are presented for charged particles produced at midrapidity as a function of centrality and transverse momentum for the 5–70% and 0.2–6 GeV/c ranges, respectively. The ratio between v2{ΨSP} and the elliptic flow coefficient relative to the participant plane v2{4}, estimated using four-particle correlations, deviates by up to 20% from unity depending on centrality. This observation differs strongly from the magnitude of the corresponding eccentricity ratios predicted by the TRENTo and the elliptic power models of initial state fluctuations that are tuned to describe the participant plane anisotropies. The differences can be interpreted as a decorrelation of the neutron spectator plane and the reaction plane because of fragmentation of the remnants from the colliding nuclei, which points to an incompleteness of current models describing the initial state fluctuations. A significant transverse momentum dependence of the ratio v2{ΨSP}/v2{4} is observed in all but the most central collisions, which may help to understand whether momentum anisotropies at low and intermediate transverse momentum have a common origin in initial state fluctuations. The ratios of v2{ΨSP} and v2{4} to the corresponding initial state eccentricities for Xe–Xe and Pb–Pb collisions at similar initial entropy density show a difference of (7.0±0.9)% with an additional variation of +1.8% when including RHIC data in the TRENTo parameter extraction. These observations provide new experimental constraints for viscous effects in the hydrodynamic modeling of the expanding quark–gluon plasma produced in heavy-ion collisions at the LHC.
Neutral pion and η meson production cross sections were measured up to unprecedentedly high transverse momenta (pT) in p-Pb collisions at sNN−−−√ = 8.16 TeV. The mesons were reconstructed via their two-photon decay channel in the rapidity interval −1.3<y<0.3 in the ranges of 0.4<pT<200 GeV/c and 1.0<pT<50 GeV/c, respectively. The respective nuclear modification factor (RpPb) is presented for pT up to of 200 and 30 GeV/c, where the former was achieved extending the π0 measurement in pp collisions at s√ = 8 TeV. The values of RpPb are below unity for pT<10 GeV/c, while they are consistent with unity for pT>10 GeV/c. The new data provide constraints for nuclear parton distribution and fragmentation functions over a broad kinematic range and are compared to model predictions as well as previous results at sNN−−−√ = 5.02 TeV.
Neutral pion and η meson production cross sections were measured up to unprecedentedly high transverse momenta (pT) in p-Pb collisions at sNN−−−√ = 8.16 TeV. The mesons were reconstructed via their two-photon decay channel in the rapidity interval −1.3<y<0.3 in the ranges of 0.4<pT<200 GeV/c and 1.0<pT<50 GeV/c, respectively. The respective nuclear modification factor (RpPb) is presented for pT up to of 200 and 30 GeV/c, where the former was achieved extending the π0 measurement in pp collisions at s√ = 8 TeV. The values of RpPb are below unity for pT<10 GeV/c, while they are consistent with unity for pT>10 GeV/c. The new data provide constraints for nuclear parton distribution and fragmentation functions over a broad kinematic range and are compared to model predictions as well as previous results at sNN−−−√ = 5.02 TeV.
Neutral pion (π0) and η meson production cross sections were measured up to unprecedentedly high transverse momenta (pT) in p-Pb collisions at sNN−−−√ = 8.16 TeV. The mesons were reconstructed via their two-photon decay channel in the rapidity interval −1.3<y<0.3 in the ranges of 0.4<pT<200 GeV/c and 1.0<pT<50 GeV/c, respectively. The respective nuclear modification factor (RpPb) is presented for pT up to of 200 and 30 GeV/c, where the former was achieved by extending the π0 measurement in pp collisions at s√ = 8 TeV using the merged cluster technique. The values of RpPb are below unity for pT<10 GeV/c, while they are consistent with unity for pT>10 GeV/c, leaving essentially no room for final state energy loss. The new data provide strong constraints for nuclear parton distribution and fragmentation functions over a broad kinematic range and are compared to model predictions as well as previous results at sNN−−−√ = 5.02 TeV.
The coherent photoproduction of J/ψ and ψ′ mesons was measured in ultra-peripheral Pb-Pb collisions at a center-of-mass energy sNN−−−√ = 5.02 TeV with the ALICE detector. Charmonia are detected in the central rapidity region for events where the hadronic interactions are strongly suppressed. The J/ψ is reconstructed using the dilepton (l+l−) and proton-antiproton decay channels, while for the ψ′, the dilepton and the l+l−π+π− decay channels are studied. The analysis is based on an event sample corresponding to an integrated luminosity of about 233 μb−1. The results are compared with theoretical models for coherent J/ψ and ψ′ photoproduction. The coherent cross section is found to be in a good agreement with models incorporating moderate nuclear gluon shadowing of about 0.65 at a Bjorken-x of around 6×10−4, such as the EPS09 parametrization, however none of the models is able to fully describe the rapidity dependence of the coherent J/ψ cross section including ALICE measurements at forward rapidity. The ratio of ψ′ to J/ψ coherent photoproduction cross sections was also measured and found to be consistent with the one for photoproduction off protons.