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 production of J/ψ is measured as a function of charged-particle multiplicity at forward rapidity in proton−proton (pp) collisions at center-of-mass energies s√= 5.02 and 13 TeV. The J/ψ mesons are reconstructed via their decay into dimuons in the rapidity interval (2.5 <y< 4.0), whereas the charged-particle multiplicity density (\dnchdeta) is measured at midrapidity (|η|<1). The production rate as a function of multiplicity is reported as the ratio of the yield in a given multiplicity interval to the multiplicity-integrated one. This observable shows a linear increase with charged-particle multiplicity normalized to the corresponding average value for inelastic events (dNch/dη/⟨dNch/dη⟩), at both the colliding energies. Measurements are compared with available ALICE results at midrapidity and theoretical model calculations. First measurement of the mean transverse momentum (⟨pT⟩) of J/ψ in pp collisions exhibits an increasing trend as a function of dNch/dη/⟨dNch/dη⟩ showing a saturation towards high charged-particle multiplicities.
The production of J/ψ is measured as a function of charged-particle multiplicity at forward rapidity in proton−proton (pp) collisions at center-of-mass energies s√= 5.02 and 13 TeV. The J/ψ mesons are reconstructed via their decay into dimuons in the rapidity interval (2.5 <y< 4.0), whereas the charged-particle multiplicity density (dNch/dη) is measured at midrapidity (|η|<1). The production rate as a function of multiplicity is reported as the ratio of the yield in a given multiplicity interval to the multiplicity-integrated one. This observable shows a linear increase with charged-particle multiplicity normalized to the corresponding average value for inelastic events (dNch/dη/⟨dNch/dη⟩), at both the colliding energies. Measurements are compared with available ALICE results at midrapidity and theoretical model calculations. First measurement of the mean transverse momentum (⟨pT⟩) of J/ψ in pp collisions exhibits an increasing trend as a function of dNch/dη/⟨dNch/dη⟩ showing a saturation towards high charged-particle multiplicities.
Measurements of event-by-event fluctuations of charged-particle multiplicities in Pb-Pb collisions at sNN−−−√ = 2.76 TeV using the ALICE detector at the CERN Large Hadron Collider (LHC) are presented in the pseudorapidity range |η|<0.8 and transverse momentum 0.2<pT<2.0 GeV/c. The amplitude of the fluctuations is expressed in terms of the variance normalized by the mean of the multiplicity distribution. The η and pT dependences of the fluctuations and their evolution with respect to collision centrality are investigated. The multiplicity fluctuations tend to decrease from peripheral to central collisions. The results are compared to those obtained from HIJING and AMPT Monte Carlo event generators as well as to experimental data at lower collision energies. Additionally, the measured multiplicity fluctuations are discussed in the context of the isothermal compressibility of the high-density strongly-interacting system formed in central Pb-Pb collisions.
Measurements of elliptic (v2) and triangular (v3) flow coefficients of π±, K±, p+p¯¯¯, K0S, and Λ+Λ¯¯¯¯ obtained with the scalar product method in Xe-Xe collisions at sNN−−−√ = 5.44 TeV are presented. The results are obtained in the rapidity range |y|<0.5 and reported as a function of transverse momentum, pT, for several collision centrality classes. The flow coefficients exhibit a particle mass dependence for pT<3 GeV/c, while a grouping according to particle type (i.e., meson and baryon) is found at intermediate transverse momenta (3< pT <8 GeV/c). The magnitude of the baryon v2 is larger than that of mesons up to pT = 6 GeV/c. The centrality dependence of the shape evolution of the pT-differential v2 is studied for the various hadron species. The v2 coefficients of π±, K±, and p+p¯¯¯ are reproduced by MUSIC hydrodynamic calculations coupled to a hadronic cascade model (UrQMD) for pT<1 GeV/c. A comparison with vn measurements in the corresponding centrality intervals in Pb-Pb collisions at sNN−−−√ = 5.02 TeV yields an enhanced v2 in central collisions and diminished value in semicentral collisions.
Measurements of elliptic (v2) and triangular (v3) flow coefficients of π±, K±, p+p¯¯¯, K0S, and Λ+Λ¯¯¯¯ obtained with the scalar product method in Xe-Xe collisions at sNN−−−√ = 5.44 TeV are presented. The results are obtained in the rapidity range |y|<0.5 and reported as a function of transverse momentum, pT, for several collision centrality classes. The flow coefficients exhibit a particle mass dependence for pT<3 GeV/c, while a grouping according to particle type (i.e., meson and baryon) is found at intermediate transverse momenta (3< pT <8 GeV/c). The magnitude of the baryon v2 is larger than that of mesons up to pT = 6 GeV/c. The centrality dependence of the shape evolution of the pT-differential v2 is studied for the various hadron species. The v2 coefficients of π±, K±, and p+p¯¯¯ are reproduced by MUSIC hydrodynamic calculations coupled to a hadronic cascade model (UrQMD) for pT<1 GeV/c. A comparison with vn measurements in the corresponding centrality intervals in Pb-Pb collisions at sNN−−−√ = 5.02 TeV yields an enhanced v2 in central collisions and diminished value in semicentral collisions.
Polarization of Λ and ¯Λ hyperons along the beam direction in Pb–Pb collisions at √sNN = 5.02 TeV
(2021)
The polarization of the Λ and Λ¯¯¯¯ hyperons along the beam (z) direction, Pz, has been measured in Pb-Pb collisions at sNN−−−√ = 5.02TeV recorded with ALICE at the Large Hadron Collider (LHC). The largest contribution to Pz comes from elliptic flow induced vorticity and can be characterized by the second Fourier sine coefficient Pz,s2=⟨Pzsin(2φ−2Ψ2)⟩, where φ is the hyperon azimuthal emission angle, and Ψ2 is the elliptic flow plane angle. We report the measurement of Pz,s2 for different collision centralities, and in the 30-50% centrality interval as a function of the hyperon transverse momentum and rapidity. The Pz,s2 is positive similarly as measured by the STAR Collaboration in Au-Au collisions at sNN−−−√ = 200 GeV, with somewhat smaller amplitude in the semi-central collisions. This is the first experimental evidence of a non-zero hyperon Pz in Pb-Pb collisions at the LHC. The comparison of the measured Pz,s2 with the hydrodynamic model calculations shows sensitivity to the competing contributions from thermal and the recently found shear induced vorticity, as well as to whether the polarization is acquired at the quark-gluon plasma or the hadronic phase.
Measurement of beauty production via non-prompt D0 mesons in Pb–Pb collisions at √sNN = 5.02 TeV
(2022)
The production of non-prompt D0 mesons from beauty-hadron decays was measured at midrapidity (|y|<0.5) in Pb-Pb collisions at a nucleon-nucleon center-of-mass energy of sNN−−−√=5.02 TeV with the ALICE experiment at the LHC. Their nuclear modification factor (RAA), measured for the first time down to pT=1 GeV/c in the 0−10% and 30−50% centrality classes, indicates a significant suppression, up to a factor of about three, for pT>5 GeV/c in the 0−10% central Pb-Pb collisions. The data are described by models that include both collisional and radiative processes in the calculation of beauty-quark energy loss in the quark-gluon plasma, and quark recombination in addition to fragmentation as a hadronization mechanism. The ratio of the non-prompt to prompt D0-meson RAA is larger than unity for pT>4 GeV/c in the 0−10% central Pb-Pb collisions, as predicted by models in which beauty quarks lose less energy than charm quarks in the quark-gluon plasma because of their larger mass.
The first measurement of event-by-event antideuteron number fluctuations in high energy heavy-ion collisions is presented. The measurements are carried out at midrapidity (|η|<0.8) as a function of collision centrality in Pb−Pb collisions at sNN−−−√=5.02 TeV using the ALICE detector. A significant negative correlation between the produced antiprotons and antideuterons is observed in all collision centralities. The results are compared with a state-of-the-art coalescence calculation. While it describes the ratio of higher order cumulants of the antideuteron multiplicity distribution, it fails to describe quantitatively the magnitude of the correlation between antiproton and antideuteron production. On the other hand, thermal-statistical model calculations describe all the measured observables within uncertainties only for correlation volumes that are different with respect to those describing proton yields and a similar measurement of net-proton number fluctuations.
The multiplicity dependence of jet production in pp collisions at the centre-of-mass energy of s√=13 TeV is studied for the first time. Jets are reconstructed from charged particles using the anti-kT algorithm with resolution parameters R varying from 0.2 to 0.7. The jets are measured in the pseudorapidity range |ηjet|<0.9−R and in the transverse momentum range 5<pchT,jet<140 GeV/c. The multiplicity intervals are categorised by the ALICE forward detector V0. The pT differential cross section of charged-particle jets are compared to leading order (LO) and next-to-leading order (NLO) perturbative quantum chromodynamics (pQCD) calculations. It is found that the data are better described by the NLO calculation, although the NLO prediction overestimates the jet cross section below 20 GeV/c. The cross section ratios for different R are also measured and compared to model calculations. These measurements provide insights into the angular dependence of jet fragmentation. The jet yield increases with increasing self-normalised charged-particle multiplicity. This increase shows only a weak dependence on jet transverse momentum and resolution parameter at the highest multiplicity. While such behaviour is qualitatively described by the present version of PYTHIA, quantitative description may require implementing new mechanisms for multi-particle production in hadronic collisions.
The multiplicity dependence of jet production in pp collisions at the centre-of-mass energy of s√=13 TeV is studied for the first time. Jets are reconstructed from charged particles using the anti-kT algorithm with resolution parameters R varying from 0.2 to 0.7. The jets are measured in the pseudorapidity range |ηjet|<0.9−R and in the transverse momentum range 5<pchT,jet<140 GeV/c. The multiplicity intervals are categorised by the ALICE forward detector V0. The pT differential cross section of charged-particle jets are compared to leading order (LO) and next-to-leading order (NLO) perturbative quantum chromodynamics (pQCD) calculations. It is found that the data are better described by the NLO calculation, although the NLO prediction overestimates the jet cross section below 20 GeV/c. The cross section ratios for different R are also measured and compared to model calculations. These measurements provide insights into the angular dependence of jet fragmentation. The jet yield increases with increasing self-normalised charged-particle multiplicity. This increase shows only a weak dependence on jet transverse momentum and resolution parameter at the highest multiplicity. While such behaviour is qualitatively described by the present version of PYTHIA, quantitative description may require implementing new mechanisms for multi-particle production in hadronic collisions.