Refine
Year of publication
Document Type
- Preprint (570)
- Article (384)
- Conference Proceeding (7)
- Working Paper (4)
- Book (1)
- Part of a Book (1)
Has Fulltext
- yes (967)
Is part of the Bibliography
- no (967)
Keywords
- Heavy Ion Experiments (18)
- Hadron-Hadron scattering (experiments) (11)
- LHC (9)
- Heavy-ion collision (6)
- ALICE experiment (4)
- Hadron-Hadron Scattering (4)
- Quark-Gluon Plasma (4)
- ALICE (3)
- Heavy Ions (3)
- Jets and Jet Substructure (3)
- glioblastoma (3)
- pp collisions (3)
- Acute myeloid leukemia (2)
- Beauty production (2)
- Charm physics (2)
- Experimental nuclear physics (2)
- Experimental particle physics (2)
- HOD (2)
- Induction chemotherapy (2)
- Intensive care treatment (2)
- Jets (2)
- Lepton-Nucleon Scattering (experiments) (2)
- Particle and resonance production (2)
- Particle correlations and fluctuations (2)
- Pb–Pb collisions (2)
- Polymers (2)
- Single electrons (2)
- Survival (2)
- glioma (2)
- resilience (2)
- 900 GeV (1)
- ACLF (1)
- ALICE detector (1)
- AML (1)
- ASCT (1)
- ATR-FTIR (1)
- Abundance (1)
- Acute kidney failure (1)
- Alzheimer’s dementia (1)
- Amyloid-beta 42 (1)
- Anti-kaon–nucleon physics (1)
- Anti-nuclei (1)
- Aphasia (1)
- Aphasie (1)
- Arcuate fascicle (1)
- Atomic and Molecular Physics (1)
- Autecology (1)
- BRAF (1)
- BRAF V600E (1)
- Baryonic resonances (1)
- Biomarkers (1)
- Bone marrow aspiration (1)
- Brain metastasis (1)
- Brain tumor (1)
- Breast cancer (1)
- CBC (1)
- CHIP (1)
- CLOUD experiment (1)
- CMS (1)
- CVID (1)
- Cancer treatment (1)
- Centrality Class (1)
- Centrality Selection (1)
- Chemistry (1)
- Collective Flow (1)
- Comparison with QCD (1)
- Ecology (1)
- Ecotoxicology (1)
- Electron-pion identification (1)
- Electroweak interaction (1)
- Ellenberg indicator values (1)
- Elliptic flow (1)
- Environmental quality (1)
- Environmental sciences (1)
- European Society for Immunodeficiencies (ESID) (1)
- Fasciculus arcuatus (1)
- Feeding types (1)
- Femtoscopy (1)
- Festuco-Brometea (1)
- Fibre/foam sandwich radiator (1)
- Fluid overload (1)
- Freezeout (1)
- Freshwater (1)
- German PID-NET registry (1)
- Glioma (1)
- HBT (1)
- HVPG (1)
- Hadron production (1)
- Hadron-Hadron Scattering Heavy (1)
- Hadron-hadron interactions (1)
- Heavy Ion Experiment (1)
- Heavy Quark Production (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)
- Heavy-ion reactions (1)
- Hippocampal volume (1)
- Hirninfarkt (1)
- Holmes tremor (1)
- Hyperons (1)
- IgG substitution therapy (1)
- Imidacloprid (1)
- Inclusive spectra (1)
- Intensity interferometry (1)
- Invariant Mass Distribution (1)
- Invertebrates (1)
- Ionisation energy loss (1)
- Ischemic stroke (1)
- Kaonic nuclei (1)
- Kollisionen schwerer Ionen (1)
- Lacunar (1)
- Lakunär (1)
- Lesions (1)
- Litter (1)
- Low energy QCD (1)
- MRI (1)
- Microplastic-biota interaction (1)
- Microplastics (1)
- Mid-rapidity (1)
- Mild cognitive impairment (1)
- Minimum Bias (1)
- Molecular matched therapy (1)
- Molecular profiling (1)
- Monitoring (1)
- Monte Carlo (1)
- Multi-strange baryons (1)
- Multi-wire proportional drift chamber (1)
- Multiple stressors (1)
- Nanoplastics (1)
- Necrosis (1)
- Neural network (1)
- Non-small cell lung cancer (1)
- Nuclear modification factor (1)
- Nucleus (1)
- PID prevalence (1)
- PXA (1)
- PYTHIA (1)
- Partial wave analysis (1)
- Particle Correlations and Fluctuations (1)
- Pb–Pb (1)
- Peripheral blood smears (1)
- Phospho-tau (1)
- Plastic polymers (1)
- Plastics (1)
- Prediction (1)
- Production Cross Section (1)
- Properties of Hadrons (1)
- Proton (1)
- Proton–proton (1)
- Pyrolysis GC–MS (1)
- QCD (1)
- QMD (1)
- Quantenmolekulardynamik (1)
- Quark Gluon Plasma (1)
- Quark Production (1)
- Quark gluon plasma (1)
- Rapidity Range (1)
- Relapse surveillance (1)
- Relativistic heavy ion physics (1)
- Relativistic heavy-ion collisions (1)
- Resolution Parameter (1)
- Review (1)
- Single muons (1)
- Stereotactic radiosurgery (1)
- Strangeness (1)
- Subcortical (1)
- Subkortikal (1)
- Suspended solids (1)
- Systematic Uncertainty (1)
- TR (1)
- Targeted therapy (1)
- Tau (1)
- Thermal desorption GC–MS (1)
- Time Projection Chamber (1)
- Toxicity (1)
- Tracking (1)
- Transition radiation detector (1)
- Transverse momentum (1)
- Trigger (1)
- Vector (1)
- Vector Boson Production (1)
- Visual analysis (1)
- Water framework directive (1)
- Xenon-based gas mixture (1)
- acute decompensation (1)
- aerosol formation (1)
- aerosols (1)
- anti-angiogenic therapy (1)
- asset pricing (1)
- autologous stem cell transplantation (1)
- bevacizumab (1)
- cerebellar mutism (1)
- cerebellum (1)
- chemotherapy (1)
- cirrhosis (1)
- clonal dominance (1)
- clonal hematopoiesis (1)
- cortex, gray matter (1)
- credit risk (1)
- dE/dx (1)
- dabrafenib (1)
- diffusion tensor imaging (1)
- dispersal (1)
- ecological strategy (1)
- equity options (1)
- fractional anisotropy (1)
- gliomatosis cerebri growth pattern (1)
- heavy ion collisions (1)
- heavy ion experiments (1)
- hematopoietic stem cells (1)
- hematopoietic stress (1)
- hydrocephalus (1)
- hypoxia (1)
- intestinal manipulation (1)
- intraventricular chemotherapy (1)
- isolation (1)
- leptomeningeal disease (1)
- leptomeningeal metastases (1)
- leukemia (1)
- low risk anomaly (1)
- mean diffusivity (1)
- medulloblastoma (1)
- medulloblastoma resection (1)
- mowing (1)
- multiple sclerosis (1)
- nanoparticle growth (1)
- naturalness (1)
- neurosurgery (1)
- palatal tremor (1)
- pandemics (1)
- patterns of progression (1)
- perioperative ischemia (1)
- phenology (1)
- plant traits (1)
- pleomorphic xanthoastrocytoma (1)
- portal pressure (1)
- posterior fossa masses (1)
- ppK − (1)
- primary brain tumors (1)
- primary immunodeficiency (PID) (1)
- quant molekular dynamic (1)
- quark gluon plasma (1)
- rare disasters (1)
- registry for primary immunodeficiency (1)
- risk premia (1)
- skewness (1)
- social distance (1)
- somatic mutations (1)
- spectra (1)
- surgery (1)
- ventriculoperitoneal shunt (1)
- volatile organic compounds (1)
- √sN N = 2.76 TeV (1)
Institute
The production cross section of prompt Λ+c charmed baryons was measured with the ALICE detector at the LHC at midrapidity in proton-proton (pp) and proton-lead (p-Pb) collisions at a centre-of-mass energy per nucleon pair of sNN−−−√=5.02 TeV. The Λ+c and Λ¯¯¯¯−c baryons were reconstructed in the hadronic decay channels Λ+c→pK−π+ and Λ+c→pK0S and respective charge conjugates. The measured differential cross sections as a function of transverse momentum (pT) and the pT-integrated Λ+c production cross section in pp and in p-Pb collisions are presented. The Λ+c nuclear modification factor (RpPb), calculated from the cross sections in pp and in p-Pb collisions, is presented and compared with the RpPb of D mesons. The Λ+c/D0 ratio is also presented and compared with the light-flavour baryon-to-meson ratios p/π and Λ/K0S, and measurements from other LHC experiments. The results are compared to predictions from model calculations and Monte Carlo event generators.
The production cross section of prompt Λ+c charm baryons was measured with the ALICE detector at the LHC at midrapidity in proton-proton (pp) and proton-lead (p-Pb) collisions at a centre-of-mass energy per nucleon pair of sNN−−−√=5.02 TeV. The Λ+c and Λ¯¯¯¯−c baryons were reconstructed in the hadronic decay channels Λ+c→pK−π+ and Λ+c→pK0S and respective charge conjugates. The measured differential cross sections as a function of transverse momentum (pT) and the pT-integrated Λ+c production cross section in pp and in p-Pb collisions are presented. The Λ+c nuclear modification factor (RpPb), calculated from the cross sections in pp and in p-Pb collisions, is presented and compared with the RpPb of D mesons. The Λ+c/D0 ratio is also presented and compared with the light-flavour baryon-to-meson ratios p/π and Λ/K0S, and measurements from other LHC experiments. The results are compared to predictions from model calculations and Monte Carlo event generators.
The production cross section of prompt Λ+c charm baryons was measured with the ALICE detector at the LHC at midrapidity in proton-proton (pp) and proton-lead (p-Pb) collisions at a centre-of-mass energy per nucleon pair of sNN−−−√=5.02 TeV. The Λ+c and Λ¯¯¯¯−c baryons were reconstructed in the hadronic decay channels Λ+c→pK−π+ and Λ+c→pK0S and respective charge conjugates. The measured differential cross sections as a function of transverse momentum (pT) and the pT-integrated Λ+c production cross section in pp and in p-Pb collisions are presented. The Λ+c nuclear modification factor (RpPb), calculated from the cross sections in pp and in p-Pb collisions, is presented and compared with the RpPb of D mesons. The Λ+c/D0 ratio is also presented and compared with the light-flavour baryon-to-meson ratios p/π and Λ/K0S, and measurements from other LHC experiments. The results are compared to predictions from model calculations and Monte Carlo event generators.
The production cross section of prompt Λ+c charmed baryons was measured with the ALICE detector at the LHC at midrapidity in proton-proton (pp) and proton-lead (p-Pb) collisions at a centre-of-mass energy per nucleon pair of sNN−−−√=5.02 TeV. The Λ+c and Λ¯¯¯¯−c baryons were reconstructed in the hadronic decay channels Λ+c→pK−π+ and Λ+c→pK0S and respective charge conjugates. The measured differential cross sections as a function of transverse momentum (pT) and the pT-integrated Λ+c production cross section in pp and in p-Pb collisions are presented. The Λ+c nuclear modification factor (RpPb), calculated from the cross sections in pp and in p-Pb collisions, is presented and compared with the RpPb of D mesons. The Λ+c/D0 ratio is also presented and compared with the light-flavour baryon-to-meson ratios p/π and Λ/K0S, and measurements from other LHC experiments. The results are compared to predictions from model calculations and Monte Carlo event generators.
Jet fragmentation transverse momentum distributions in pp and p–Pb collisions at √s, √sNN = 5.02 TeV
(2021)
Jet fragmentation transverse momentum (jT) distributions are measured in proton-proton (pp) and proton-lead (p-Pb) collisions at sNN−−−√ = 5.02 TeV with the ALICE experiment at the LHC. Jets are reconstructed with the ALICE tracking detectors and electromagnetic calorimeter using the anti-kT algorithm with resolution parameter R=0.4 in the pseudorapidity range |η|<0.25. The jT values are calculated for charged particles inside a fixed cone with a radius R=0.4 around the reconstructed jet axis. The measured jT distributions are compared with a variety of parton-shower models. Herwig and PYTHIA 8 based models describe the data well for the higher jT region, while they underestimate the lower jT region. The jT distributions are further characterised by fitting them with a function composed of an inverse gamma function for higher jT values (called the "wide component"), related to the perturbative component of the fragmentation process, and with a Gaussian for lower jT values (called the "narrow component"), predominantly connected to the hadronisation process. The width of the Gaussian has only a weak dependence on jet transverse momentum, while that of the inverse gamma function increases with increasing jet transverse momentum. For the narrow component, the measured trends are successfully described by all models except for Herwig. For the wide component, Herwig and PYTHIA 8 based models slightly underestimate the data for the higher jet transverse momentum region. These measurements set constraints on models of jet fragmentation and hadronisation.
The inclusive J/ψ elliptic (v2) and triangular (v3) flow coefficients measured at forward rapidity (2.5 <y< 4) and the v2 measured at midrapidity (|y|< 0.9) in Pb-Pb collisions at sNN−−−√ = 5.02 TeV using the ALICE detector at the LHC are reported. The entire Pb-Pb data sample collected during Run 2 is employed, amounting to an integrated luminosity of 750 μb−1 at forward rapidity and 93 μb−1 at midrapidity. The results are obtained using the scalar product method and are reported as a function of transverse momentum pT and collision centrality. At midrapidity, the J/ψ v2 is in agreement with the forward rapidity measurement. The centrality averaged results indicate a positive J/ψ v3 with a significance of more than 5σ at forward rapidity in the pT range 2<pT<5 GeV/c. The forward rapidity v2, v3, and v3/v2 results at low and intermediate pT (pT≲8 GeV/c) exhibit a mass hierarchy when compared to pions and D mesons, while converging into a species-independent curve at higher pT. At low and intermediate pT, the results could be interpreted in terms of a later thermalization of charm quarks compared to light quarks, while at high pT, path-length dependent effects seem to dominate. The J/ψ v2 measurements are further compared to a microscopic transport model calculation. Using a simplified extension of the quark scaling approach involving both light and charm quark flow components, it is shown that the D-meson vn measurements can be described based on those for charged pions and J/ψ flow.
The inclusive J/ψ elliptic (v2) and triangular (v3) flow coefficients measured at forward rapidity (2.5 <y< 4) and the v2 measured at midrapidity (|y|< 0.9) in Pb-Pb collisions at sNN−−−√ = 5.02 TeV using the ALICE detector at the LHC are reported. The entire Pb-Pb data sample collected during Run 2 is employed, amounting to an integrated luminosity of 750 μb−1 at forward rapidity and 93 μb−1 at midrapidity. The results are obtained using the scalar product method and are reported as a function of transverse momentum pT and collision centrality. At midrapidity, the J/ψ v2 is in agreement with the forward rapidity measurement. The centrality averaged results indicate a positive J/ψ v3 with a significance of more than 5σ at forward rapidity in the pT range 2<pT<5 GeV/c. The forward rapidity v2, v3, and v3/v2 results at low and intermediate pT (pT≲8 GeV/c) exhibit a mass hierarchy when compared to pions and D mesons, while converging into a species-independent curve at higher pT. At low and intermediate pT, the results could be interpreted in terms of a later thermalization of charm quarks compared to light quarks, while at high pT, path-length dependent effects seem to dominate. The J/ψ v2 measurements are further compared to a microscopic transport model calculation. Using a simplified extension of the quark scaling approach involving both light and charm quark flow components, it is shown that the D-meson vn measurements can be described based on those for charged pions and J/ψ flow.
A measurement of dielectron production in proton-proton (pp) collisions at s√=13 TeV, recorded with the ALICE detector at the CERN LHC, is presented in this Letter. The data set was recorded with a reduced magnetic solenoid field. This enables the investigation of a kinematic domain at low dielectron invariant mass mee and pair transverse momentum pT,ee that was previously inaccessible at the LHC. The cross section for dielectron production is studied as a function of mee, pT,ee, and event multiplicity dNch/dη. The expected dielectron rate from hadron decays, called hadronic cocktail, utilizes a parametrization of the measured η/π0 ratio in pp and proton-nucleus (p-A) collisions, assuming that this ratio shows no strong dependence on collision energy at low transverse momentum. Comparison of the measured dielectron yield to the hadronic cocktail at 0.15<mee<0.6 GeV/c2 and for pT,ee<0.4 GeV/c indicates an enhancement of soft dielectrons, reminiscent of the 'anomalous' soft-photon and -dilepton excess in hadron-hadron collisions reported by several experiments under different experimental conditions. The enhancement factor over the hadronic cocktail amounts to 1.61±0.13(stat.)±0.17(syst.,data)±0.34(syst.,cocktail) in the ALICE acceptance. Acceptance-corrected excess spectra in mee and pT,ee are extracted and compared with calculations of dielectron production from hadronic bremsstrahlung and thermal radiation within a hadronic many-body approach.
A measurement of dielectron production in proton-proton (pp) collisions at s√=13 TeV, recorded with the ALICE detector at the CERN LHC, is presented in this Letter. The data set was recorded with a reduced magnetic solenoid field. This enables the investigation of a kinematic domain at low dielectron invariant mass mee and pair transverse momentum pT,ee that was previously inaccessible at the LHC. The cross section for dielectron production is studied as a function of mee, pT,ee, and event multiplicity dNch/dη. The expected dielectron rate from hadron decays, called hadronic cocktail, utilizes a parametrization of the measured η/π0 ratio in pp and proton-nucleus (p-A) collisions, assuming that this ratio shows no strong dependence on collision energy at low transverse momentum. Comparison of the measured dielectron yield to the hadronic cocktail at 0.15<mee<0.6 GeV/c2 and for pT,ee<0.4 GeV/c indicates an enhancement of soft dielectrons, reminiscent of the 'anomalous' soft-photon and -dilepton excess in hadron-hadron collisions reported by several experiments under different experimental conditions. The enhancement factor over the hadronic cocktail amounts to 1.61±0.13(stat.)±0.17(syst.,data)±0.34(syst.,cocktail) in the ALICE acceptance. Acceptance-corrected excess spectra in mee and pT,ee are extracted and compared with calculations of dielectron production from hadronic bremsstrahlung and thermal radiation within a hadronic many-body approach.
A measurement of dielectron production in proton-proton (pp) collisions at s√=13 TeV, recorded with the ALICE detector at the CERN LHC, is presented in this Letter. The data set was recorded with a reduced magnetic solenoid field. This enables the investigation of a kinematic domain at low dielectron invariant mass mee and pair transverse momentum pT,ee that was previously inaccessible at the LHC. The cross section for dielectron production is studied as a function of mee, pT,ee, and event multiplicity dNch/dη. The expected dielectron rate from hadron decays, called hadronic cocktail, utilizes a parametrization of the measured η/π0 ratio in pp and proton-nucleus (p-A) collisions, assuming that this ratio shows no strong dependence on collision energy at low transverse momentum. Comparison of the measured dielectron yield to the hadronic cocktail at 0.15<mee<0.6 GeV/c2 and for pT,ee<0.4 GeV/c indicates an enhancement of soft dielectrons, reminiscent of the 'anomalous' soft-photon and -dilepton excess in hadron-hadron collisions reported by several experiments under different experimental conditions. The enhancement factor over the hadronic cocktail amounts to 1.61±0.13(stat.)±0.17(syst.,data)±0.34(syst.,cocktail) in the ALICE acceptance. Acceptance-corrected excess spectra in mee and pT,ee are extracted and compared with calculations of dielectron production from hadronic bremsstrahlung and thermal radiation within a hadronic many-body approach.