Refine
Year of publication
Document Type
- Preprint (672)
- Article (506)
- Conference Proceeding (3)
- Working Paper (2)
Has Fulltext
- yes (1183)
Is part of the Bibliography
- no (1183)
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)
- Quark-Gluon Plasma (4)
- ALICE (3)
- Jets and Jet Substructure (3)
- Relativistic heavy-ion collisions (3)
- pp collisions (3)
- Atmospheric chemistry (2)
- Beauty production (2)
- Charm physics (2)
- Experimental nuclear physics (2)
- Experimental particle physics (2)
- Heavy Ions (2)
- Heavy Quark Production (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)
- Quarkonium (2)
- SARS-CoV-2 (2)
- Single electrons (2)
- biodiversity (2)
- global jets (2)
- helical magnetic fields (2)
- kink-like instability (2)
- particle-in-cell simulations (2)
- recollimation shocks (2)
- relativistic jets (2)
- 900 GeV (1)
- ADHD (1)
- ALICE detector (1)
- Animal wings (1)
- Ankylosierende Spondylitis (1)
- Ankylosing spondylitis (1)
- Anti-kaon–nucleon physics (1)
- Anti-nuclei (1)
- Atmospheric science (1)
- Axial spondyloarthritis (1)
- Axiale Spondyloarthritis (1)
- Bacterial structural biology (1)
- Big Data (1)
- Biodiversity (1)
- Boosted Jets (1)
- Brain (1)
- CAKUT (1)
- CLOUD experiment (1)
- COBL (1)
- COVID-19 (1)
- COVID19-NMR (1)
- CVD biomarker (1)
- Care gaps (1)
- Cellular microbiology (1)
- Centrality Class (1)
- Centrality Selection (1)
- Chaperones (1)
- Charge fluctuations (1)
- Charged-particle multiplicity (1)
- Chocó rainforest (1)
- Climate change (1)
- Climate-change impacts (1)
- Cold nuclear matter effects (1)
- Collective Flow, (1)
- Collectivity (1)
- Comparison with QCD (1)
- Conservation biology (1)
- Correlation (1)
- Course (1)
- Data sharing (1)
- De novo assembly (1)
- Di-hadron correlations (1)
- Diagnosis (1)
- Diffraction (1)
- EBV (1)
- EGFR (1)
- Ecological speciation (1)
- Ecuador (1)
- Elastic scattering (1)
- Electron-pion identification (1)
- Electroweak interaction (1)
- Elliptic flow (1)
- England (1)
- Environmental impact (1)
- Expression analysis (1)
- Femtoscopy (1)
- Fibre/foam sandwich radiator (1)
- Forensics (1)
- GWAS (1)
- Genetics (1)
- German people (1)
- Germany (1)
- Groomed jet radius (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 ions (1)
- Heavy-flavour decay muons (1)
- Heavy-flavour production (1)
- Heavy-ion collisions (1)
- Hyperons (1)
- IFN (1)
- IKZF1 (1)
- Inclusive spectra (1)
- Intensity interferometry (1)
- Interference fragmentation function (1)
- Invariant Mass Distribution (1)
- Ionisation energy loss (1)
- J/ψ suppression (1)
- JAK2V617F (1)
- Jet Physics (1)
- Jet Substructure (1)
- Jet substructure (1)
- Kaonic nuclei (1)
- LTER (1)
- Long‐term ecosystem research (1)
- Low energy QCD (1)
- Macrodomain (1)
- Material budget (1)
- Mid-rapidity (1)
- Minimum Bias (1)
- Monte Carlo (1)
- Morphometry (1)
- Multi-Parton Interactions (1)
- Multi-strange baryons (1)
- Multi-wire proportional drift chamber (1)
- Multiple parton interactions (1)
- NMR spectroscopy (1)
- Neural network (1)
- Non-structural protein (1)
- Nuclear Physics (1)
- Nuclear modification factor (1)
- Nucleus (1)
- Outcome (1)
- PYTHIA (1)
- Partial wave analysis (1)
- Particle and Resonance Production (1)
- Pb–Pb (1)
- Photosynthesis (1)
- Phylogenetic analysis (1)
- Poeciliidae (1)
- Production Cross Section (1)
- Properties of Hadrons (1)
- Protein drugability (1)
- Proton (1)
- Proton-proton collisions (1)
- Proton–proton (1)
- QCD (1)
- QGP (1)
- Quality of care (1)
- Quality standards (1)
- Qualitätsstandards (1)
- Quark Deconfinement (1)
- Quark Gluon Plasma (1)
- Quark Production (1)
- RAG (1)
- RHIC (1)
- RNA sequencing (1)
- Rapidity Range (1)
- Relativistic heavy ion physics (1)
- Research data (1)
- Research infrastructure (1)
- Resolution Parameter (1)
- SAVI (1)
- SLC20A1 (1)
- STING (1)
- Self-renewal (1)
- Sequence alignment (1)
- Shear viscosity (1)
- Single muons (1)
- Site networks (1)
- SoftDrop (1)
- Solution NMR-spectroscopy (1)
- Splitting function (1)
- Strangeness (1)
- Systematic Uncertainty (1)
- TR (1)
- Time Projection Chamber (1)
- Tracking (1)
- Transcriptome (1)
- Transition radiation detector (1)
- Transverse momentum (1)
- Transversity (1)
- Treatment (1)
- Trigger (1)
- Vector Boson Production (1)
- Versorgungslücken (1)
- Versorgungsqualität (1)
- X-ray powder diffraction (1)
- Xenon-based gas mixture (1)
- aboveground biomass (1)
- accessory proteins (1)
- acute lymphoblastic leukemia (1)
- aerosol formation (1)
- aerosols (1)
- antiepileptic drugs (1)
- atypical EGFR mutations (1)
- biogeographic legaciese (1)
- bladder exstrophy-epispadias complex (1)
- bleeding (1)
- cell-free protein synthesis (1)
- chronic kidney disease (1)
- chronosequence (1)
- clinically important restrictions and symptoms (1)
- cloacal malformation (1)
- comparative ecology (1)
- conservation (1)
- dE/dx (1)
- detector (1)
- ectosomes (1)
- entomological collection (1)
- essential thrombocythemia (ET) (1)
- exosomes (1)
- experimental results (1)
- extracellular vesicles (1)
- forest classification (1)
- forest functional similarity (1)
- functional genetics (1)
- genetic generalized epilepsy (1)
- global change (1)
- glycobiology (1)
- glycoconjugate (1)
- guidelines (1)
- habitat destruction (1)
- harmonized dataset (1)
- health-related quality of life (1)
- heavy ion experiments (1)
- infectious disease (1)
- inositol (1)
- intrinsically disordered region (1)
- kidney formation (1)
- kinetic instabilities (1)
- lamotrigine (1)
- land use (1)
- levetiracetam (1)
- macroecology (1)
- melting point (1)
- microparticles (1)
- microvesicles (1)
- minimal information requirements (1)
- molecular modeling (1)
- mushroom instability (1)
- myeloproliferative neoplasms (MPN) (1)
- nanoparticle growth (1)
- new distributional records (1)
- nitro-fatty acids (1)
- nocardia (1)
- nocardiosis (1)
- non-small-cell lung cancer (1)
- nonstructural proteins (1)
- observational study (1)
- p+p collisions (1)
- palmitoylation (1)
- pharmacoresistance (1)
- phylogenetic community distance (1)
- polarized radiation (1)
- polycythemia vera (PV) (1)
- polymorphism (1)
- ppK − (1)
- primary myelofibrosis (PMF) (1)
- pulmonary nocardiosis (1)
- quark gluon plasma (1)
- rare disease (1)
- reassembly (1)
- relapse (1)
- renal dysfunction (1)
- reproducibility (1)
- resilience (1)
- resistance (1)
- retrovirus (1)
- rigor (1)
- risk factor progression (1)
- risk factors (1)
- rotator phase (1)
- sarcoma (1)
- secondary types (1)
- sialic acid (1)
- spectra (1)
- standardization (1)
- structural proteins (1)
- taxonomic cleaning (1)
- the Weibel instability (1)
- thromboembolism (1)
- thrombosis (1)
- trees (1)
- tropical forests (1)
- type catalogue (1)
- urinary tract development (1)
- valproic acid (1)
- volatile organic compounds (1)
- zebrafish development (1)
- √sN N = 2.76 TeV (1)
Institute
Production of Lambda and Antilambda hyperons was measured in central Pb-Pb collisions at 40, 80, and 158 A GeV beam energy on a fixed target. Transverse mass spectra and rapidity distributions are given for all three energies. The Lambda/pi ratio at mid-rapidity and in full phase space shows a pronounced maximum between the highest AGS and 40 A GeV SPS energies, whereas the anti-Lambda}/pi ratio exhibits a monotonic increase. PACS numbers: 25.75.-q
Results are presented on Omega production in central Pb+Pb collisions at 40 and 158 AGeV beam energy. Given are transverse-mass spectra, rapidity distributions, and total yields for the sum Omega+Antiomega at 40 AGeV and for Omega and Antiomega separately at 158 AGeV. The yields are strongly under-predicted by the string-hadronic UrQMD model and are in better agreement with predictions from a hadron gas models. PACS numbers: 25.75.Dw
Particle production in central Pb+Pb collisions was studied with the NA49 large acceptance spectrometer at the CERN SPS at beam energies of 20, 30, 40, 80, and 158 GeV per nucleon. A change of the energy dependence is observed around 30A GeV for the yields of pions and strange particles as well as for the shapes of the transverse mass spectra. At present only a reaction scenario with onset of deconfinement is able to reproduce the measurements.
The hadronic final state of central Pb+Pb collisions at 20, 30, 40, 80, and 158 AGeV has been measured by the CERN NA49 collaboration. The mean transverse mass of pions and kaons at midrapidity stays nearly constant in this energy range, whereas at lower energies, at the AGS, a steep increase with beam energy was measured. Compared to p+p collisions as well as to model calculations, anomalies in the energy dependence of pion and kaon production at lower SPS energies are observed. These findings can be explained, assuming that the energy density reached in central A+A collisions at lower SPS energies is sufficient to transform the hot and dense nuclear matter into a deconfined phase.
The hadronic final state of central Pb+Pb collisions at 20, 30, 40, 80, and 158 AGeV has been measured by the CERN NA49 collaboration. The mean transverse mass of pions and kaons at midrapidity stays nearly constant in this energy range, whereas at lower energies, at the AGS, a steep increase with beam energy was measured. Compared to p+p collisions as well as to model calculations, anomalies in the energy dependence of pion and kaon production at lower SPS energies are observed. These findings can be explained, assuming that the energy density reached in central A+A collisions at lower SPS energies is sufficient to force the hot and dense nuclear matter into a deconfined phase.
Results are presented on event-by-event fluctuations in transverse momentum of charged particles, produced at forward rapidities in p+p, C+C, Si+Si and Pb+Pb collisions at 158 AGeV. Three different characteristics are discussed: the average transverse momentum of the event, the Phi_pT fluctuation measure and two-particle transverse momentum correlations. In the kinematic region explored, the dynamical fluctuations are found to be small. However, a significant system size dependence of Phi_pT is observed, with the largest value measured in peripheral Pb+Pb interactions. The data are compared with predictions of several models. PACS numbers: 14.20.Jn, 13.75.Cs, 12.39.-x
Electric charge correlations were studied for p+p, C+C, Si+Si, and centrality selected Pb+Pb collisions at sqrt[sNN]=17.2 GeV with the NA49 large acceptance detector at the CERN SPS. In particular, long-range pseudorapidity correlations of oppositely charged particles were measured using the balance function method. The width of the balance function decreases with increasing system size and centrality of the reactions. This decrease could be related to an increasing delay of hadronization in central Pb+Pb collisions.
Evidence for an exotic S=-2, Q=-2 baryon resonance in proton-proton collisions at the CERN SPS
(2004)
Results of resonance searches in the Xi - pi -, Xi - pi +, Xi -bar+ pi -, and Xi -bar+ pi + invariant mass spectra in proton-proton collisions at sqrt[s]=17.2 GeV are presented. Evidence is shown for the existence of a narrow Xi - pi - baryon resonance with mass of 1.862±0.002 GeV/c2 and width below the detector resolution of about 0.018 GeV/c2. The significance is estimated to be above 4.2 sigma . This state is a candidate for the hypothetical exotic Xi --3/2 baryon with S=-2, I=3 / 2, and a quark content of (dsdsu-bar). At the same mass, a peak is observed in the Xi - pi + spectrum which is a candidate for the Xi 03/2 member of this isospin quartet with a quark content of (dsusd-bar). The corresponding antibaryon spectra also show enhancements at the same invariant mass.
Observation of an exotic S = -2, Q = -2 baryon resonance in proton-proton collisions at the CERN SPS
(2003)
Results of resonance searches in the Xi- pi-, Xi- pi+, antiXi+ pi- and antiXi+ pi+ invariant mass spectra in proton-proton collisions at sqrt s=17.2 GeV are presented. Evidence is shown for the existence of a narrow Xi- pi- baryon resonance with mass of 1.862+/-0.002 GeV/c^2 and width below the detector resolution of about 0.018 GeV/c^2. The significance is estimated to be 4.0 sigma. This state is a candidate for the hypothetical exotic Xi_(3/2)^-- baryon with S = -2, I = 3/2 and a quark content of (d s d s ubar). At the same mass a peak is observed in the Xi- pi+ spectrum which is a candidate for the Xi_(3/2)^0 member of this isospin quartet with a quark content of (d s u s dbar). The corresponding antibaryon spectra also show enhancements at the same invariant mass.
Report from NA49
(2004)
The most recent data of NA49 on hadron production in nuclear collisions at CERN SPS energies are presented. Anomalies in the energy dependence of pion and kaon production in central Pb+Pb collisions are observed. They suggest that the onset of deconfinement is located at about 30 AGeV. Large multiplicity and transverse momentum fluctuations are measured for collisions of intermediate mass systems at 158 AGeV. The need for a new experimental programme at the CERN SPS is underlined.