Refine
Year of publication
Document Type
- Preprint (541)
- Article (318)
- Working Paper (4)
Has Fulltext
- yes (863)
Is part of the Bibliography
- no (863)
Keywords
- Heavy Ion Experiments (20)
- Hadron-Hadron scattering (experiments) (11)
- Hadron-Hadron Scattering (8)
- Heavy-ion collision (5)
- Collective Flow (4)
- Quark-Gluon Plasma (4)
- EEG (3)
- Jets (3)
- Jets and Jet Substructure (3)
- MRI (3)
- Atherosclerosis (2)
- Atmospheric science (2)
- Biomarker (2)
- Bone density (2)
- COVID-19 (2)
- Climate change (2)
- Experimental models of disease (2)
- Experimental nuclear physics (2)
- Experimental particle physics (2)
- Heavy Quark Production (2)
- High-throughput screening (2)
- Lepton-Nucleon Scattering (experiments) (2)
- Oncology (2)
- Osteoporosis (2)
- Particle Correlations and Fluctuations (2)
- Particle and resonance production (2)
- Particle correlations and fluctuations (2)
- QCD (2)
- aging (2)
- alpha power (2)
- risk factors (2)
- white matter hyperintensity (2)
- ALICE detector (1)
- Accelerators & Beams (1)
- Accelerators & storage rings (1)
- Aging (1)
- Alpha power (1)
- Alternative splicing (1)
- Anatomic competence (1)
- Anti-nuclei (1)
- Antiviral therapy (1)
- Arthroscopy (1)
- Atmospheric chemistry (1)
- Atomic & molecular beams (1)
- Atomic, Molecular & Optical (1)
- Beam loss (1)
- Bone diseases, Metabolic (1)
- Boosted Jets (1)
- Brain metastasis (1)
- Breast cancer (1)
- CD74 (1)
- CT dual-energy computed tomography (1)
- CVD biomarker (1)
- CXCR4 (1)
- Cancer detection and diagnosis (1)
- Cancer genomics (1)
- Canopy height model (1)
- Cardiovascular diseases (1)
- Charge-transfer collisions (1)
- Chronic hepatitis (1)
- Circular accelerators (1)
- Cirrhosis (1)
- Clinical frailty scale (1)
- Coagulation (1)
- Collective Flow, (1)
- Communicable diseases (1)
- Computational models (1)
- Critical pathway (1)
- Crohn’s disease (1)
- Data sharing (1)
- Diagnostic markers (1)
- Diagnostic techniques and procedures (1)
- Dual-energy computed tomography (1)
- Education (1)
- Electron-pion identification (1)
- Electronic transitions (1)
- Electroweak interaction (1)
- Energy modelling (1)
- European Union (1)
- Fibre/foam sandwich radiator (1)
- Frailty (1)
- Genetic causes of cancer (1)
- Genetic testing (1)
- Germany (1)
- HLA class II (1)
- HLA peptidome (1)
- HNSCC (1)
- Hadron-Hadron Scattering Heavy (1)
- Hadron-hadron interactions (1)
- Hard Scattering (1)
- Head and neck cancer (1)
- Health risk analysis (1)
- Heavy Ion Experiment (1)
- Heavy Ions (1)
- Hepatitis C virus (1)
- Histology (1)
- Human genetics (1)
- Immunology (1)
- Infection control (1)
- Inflammation (1)
- Intensive care outcome (1)
- Ionisation energy loss (1)
- Italy (1)
- Jet Physics (1)
- Jet Substructure (1)
- Knee joint (1)
- LHC (1)
- Loco-regional control (1)
- Low & intermediate-energy accelerators (1)
- Machine learning (1)
- Material budget (1)
- Mechanisms of disease (1)
- Medical (1)
- Medical education (1)
- Mortality (1)
- Multi-Parton Interactions (1)
- Multi-wire proportional drift chamber (1)
- Musculoskeletal ultrasound (1)
- Myocardial infarction (1)
- Myocardial injury (1)
- NOD2 (1)
- Neural network (1)
- Nuclear astrophysics (1)
- Nuclear physics of explosive environments (1)
- Nuclear reactions (1)
- Open data (1)
- Open source (1)
- Osteoporotic fractures (1)
- Ovarian cancer (1)
- Particle and Resonance Production (1)
- Patient isolation (1)
- Pb–Pb collisions (1)
- Phantoms (imaging) (1)
- Photon counting (1)
- Postoperative radiochemotherapy (1)
- Prognostic (1)
- Properties of Hadrons (1)
- Protease inhibitor therapy (1)
- Quark Deconfinement (1)
- Quark Gluon Plasma (1)
- Quark Production (1)
- Quark gluon plasma (1)
- Quarkonium (1)
- RNA (1)
- RNA-binding proteins (1)
- Radiative capture (1)
- Radiomics (1)
- Randomized controlled trial (1)
- Relativistic heavy-ion collisions (1)
- Respiratory signs and symptoms (1)
- Resting-state (1)
- Reverse transcription polymerase chain reaction (1)
- SARS-CoV-2 (1)
- SDF-1 (1)
- Shoulder joint (1)
- Specimen preparation and treatment (1)
- Stroke (1)
- Students (1)
- Sweden (1)
- TR (1)
- Tomography (x-ray computed) (1)
- Tracking (1)
- Transition radiation detector (1)
- Translational research (1)
- Trauma (1)
- Trichuris suis ova (1)
- Trigger (1)
- Tumor infiltrating lymphocytes (1)
- UAV (1)
- VIP1 (1)
- Validation (1)
- Vector Boson Production (1)
- Viral load (1)
- White matter hyperintensity (1)
- X-ray crystallography (1)
- Xenon-based gas mixture (1)
- amino acids (1)
- aortic stenosis (1)
- cardiac remodeling (1)
- clinical immunology (1)
- dE/dx (1)
- detector (1)
- drone (1)
- experimental results (1)
- fine spatial resolution remote sensing (1)
- global change (1)
- habitat destruction (1)
- heart failure (1)
- heavy ion experiments (1)
- helminths (1)
- image-based risk modelling (1)
- immunosuppression (1)
- infection (1)
- innate immunity (1)
- land use (1)
- lymphocytes (1)
- machine learning (1)
- mortality risk (1)
- neutralizing antibodies (1)
- personalised therapy (1)
- plant height (1)
- pneumocystis (1)
- quark gluon plasma (1)
- radiation oncology (1)
- radiomic (1)
- rats (1)
- renal transplantation (1)
- resting-state (1)
- risk factor progression (1)
- spike protein (1)
- structure-from-motion photogrammetry (1)
- survival (1)
- transplantation (1)
- variants of concern (1)
- x-ray techniques (1)
Institute
- Physik (810)
- Frankfurt Institute for Advanced Studies (FIAS) (750)
- Informatik (715)
- Medizin (28)
- Geowissenschaften (7)
- ELEMENTS (6)
- Geowissenschaften / Geographie (5)
- Biodiversität und Klima Forschungszentrum (BiK-F) (4)
- Informatik und Mathematik (3)
- Senckenbergische Naturforschende Gesellschaft (3)
The ALICE Collaboration reports the measurement of semi-inclusive distributions of charged-particle jets recoiling from a high-transverse momentum trigger hadron in p–Pb collisions at √sNN=5.02 TeV. Jets are reconstructed from charged-particle tracks using the anti-kT algorithm with resolution parameter R=0.2 and 0.4. A data-driven statistical approach is used to correct the uncorrelated background jet yield. Recoil jet distributions are reported for jet transverse momentum 15<pT,jetch<50GeV/c and are compared in various intervals of p–Pb event activity, based on charged-particle multiplicity and zero-degree neutral energy in the forward (Pb-going) direction. The semi-inclusive observable is self-normalized and such comparisons do not require the interpretation of p–Pb event activity in terms of collision geometry, in contrast to inclusive jet observables. These measurements provide new constraints on the magnitude of jet quenching in small systems at the LHC. In p–Pb collisions with high event activity, the average medium-induced out-of-cone energy transport for jets with R=0.4 and 15<pT,jetch<50GeV/c is measured to be less than 0.4 GeV/c at 90% confidence, which is over an order of magnitude smaller than a similar measurement for central Pb–Pb collisions at √sNN=2.76TeV. Comparison is made to theoretical calculations of jet quenching in small systems, and to inclusive jet measurements in p–Pb collisions selected by event activity at the LHC and in d–Au collisions at RHIC.
The production of muons from heavy-flavour hadron decays in p–Pb collisions at t √sNN=5.02 TeV was studied for 2<pT<16 GeV/c with the ALICE detector at the CERN LHC. The measurement was performed at forward (p-going direction) and backward (Pb-going direction) rapidity, in the ranges of rapidity in the centre-of-mass system (cms) 2.03<ycms<3.53 and −4.46<ycms<−2.96, respectively. The production cross sections and nuclear modification factors are presented as a function of transverse momentum (pT). At forward rapidity, the nuclear modification factor is compatible with unity while at backward rapidity, in the interval 2.5<pT<3.5 GeV/c, it is above unity by more than 2σ. The ratio of the forward-to-backward production cross sections is also measured in the overlapping interval 2.96<|ycms|<3.53 and is smaller than unity by 3.7σ in 2.5<pT<3.5 GeV/c. The data are described by model calculations including cold nuclear matter effects.
Transverse momentum (pT) spectra of pions, kaons, and protons up to pT=20 GeV/c have been measured in Pb-Pb collisions at sNN−−−√=2.76 TeV using the ALICE detector for six different centrality classes covering 0-80%. The proton-to-pion and the kaon-to-pion ratios both show a distinct peak at pT≈3 GeV/c in central Pb-Pb collisions that decreases towards more peripheral collisions. For pT>10 GeV/c, the nuclear modification factor is found to be the same for all three particle species in each centrality interval within systematic uncertainties of 10-20%. This suggests there is no direct interplay between the energy loss in the medium and the particle species composition in the hard core of the quenched jet. For pT<10 GeV/c, the data provide important constraints for models aimed at describing the transition from soft to hard physics.
The first study of ϕ-meson production in p-Pb collisions at forward and backward rapidity, at a nucleon-nucleon centre-of-mass energy sNN−−−√=5.02~TeV, has been performed with the ALICE apparatus at the LHC. The ϕ-mesons have been identified in the dimuon decay channel in the transverse momentum (pT) range 1<pT<7 GeV/c, both in the p-going (2.03<y<3.53) and the Pb-going (−4.46<y<−2.96) directions, where y stands for the rapidity in the nucleon-nucleon centre-of-mass, the integrated luminosity amounting to 5.01±0.19~nb−1 and 5.81±0.20~nb−1, respectively, for the two data samples. Differential cross sections as a function of transverse momentum and rapidity are presented. The forward-backward ratio for ϕ-meson production is measured for 2.96<|y|<3.53, resulting in a ratio ∼0.5 with no significant pT dependence within the uncertainties. The pT dependence of the ϕ nuclear modification factor RpPb exhibits an enhancement up to a factor 1.6 at pT = 3-4 GeV/c in the Pb-going direction. The pT dependence of the ϕ-meson cross section in pp collisions at s√ = 2.76 TeV, which is used to determine a reference for the p-Pb results, is also presented here for 1<pT<5 GeV/c and 2.5<y<4 for a 78±3~nb−1 integrated luminosity sample.
The first study of ϕ-meson production in p-Pb collisions at forward and backward rapidity, at a nucleon-nucleon centre-of-mass energy sNN−−−√=5.02~TeV, has been performed with the ALICE apparatus at the LHC. The ϕ-mesons have been identified in the dimuon decay channel in the transverse momentum (pT) range 1<pT<7 GeV/c, both in the p-going (2.03<y<3.53) and the Pb-going (−4.46<y<−2.96) directions, where y stands for the rapidity in the nucleon-nucleon centre-of-mass, the integrated luminosity amounting to 5.01±0.19~nb−1 and 5.81±0.20~nb−1, respectively, for the two data samples. Differential cross sections as a function of transverse momentum and rapidity are presented. The forward-backward ratio for ϕ-meson production is measured for 2.96<|y|<3.53, resulting in a ratio ∼0.5 with no significant pT dependence within the uncertainties. The pT dependence of the ϕ nuclear modification factor RpPb exhibits an enhancement up to a factor 1.6 at pT = 3-4 GeV/c in the Pb-going direction. The pT dependence of the ϕ-meson cross section in pp collisions at s√ = 2.76 TeV, which is used to determine a reference for the p-Pb results, is also presented here for 1<pT<5 GeV/c and 2.5<y<4 for a 78±3~nb−1 integrated luminosity sample.
Two-particle angular correlations between trigger particles in the forward pseudorapidity range (2.5<|η|<4.0) and associated particles in the central range (|η|<1.0) are measured with the ALICE detector in p-Pb collisions at a nucleon-nucleon centre-of-mass energy of 5.02 TeV. The trigger particles are reconstructed using the muon spectrometer, and the associated particles by the central barrel tracking detectors. In high-multiplicity events, the double-ridge structure, previously discovered in two-particle angular correlations at midrapidity, is found to persist to the pseudorapidity ranges studied in this Letter. The second-order Fourier coefficients for muons in high-multiplicity events are extracted after jet-like correlations from low-multiplicity events have been subtracted. The coefficients are found to have a similar transverse momentum (pT) dependence in p-going (p-Pb) and Pb-going (Pb-p) configurations, with the Pb-going coefficients larger by about 16±6%, rather independent of pT within the uncertainties of the measurement. The data are compared with calculations using the AMPT model, which predicts a different pT and η dependence than observed in the data. The results are sensitive to the parent particle v2 and composition of reconstructed muon tracks, where the contribution from heavy flavour decays are expected to dominate at pT>2 GeV/c.
Two-particle angular correlations between trigger particles in the forward pseudorapidity range (2.5<|η|<4.0) and associated particles in the central range (|η|<1.0) are measured with the ALICE detector in p-Pb collisions at a nucleon-nucleon centre-of-mass energy of 5.02 TeV. The trigger particles are reconstructed using the muon spectrometer, and the associated particles by the central barrel tracking detectors. In high-multiplicity events, the double-ridge structure, previously discovered in two-particle angular correlations at midrapidity, is found to persist to the pseudorapidity ranges studied in this Letter. The second-order Fourier coefficients for muons in high-multiplicity events are extracted after jet-like correlations from low-multiplicity events have been subtracted. The coefficients are found to have a similar transverse momentum (pT) dependence in p-going (p-Pb) and Pb-going (Pb-p) configurations, with the Pb-going coefficients larger by about 16±6%, rather independent of pT within the uncertainties of the measurement. The data are compared with calculations using the AMPT model, which predicts a different pT and η dependence than observed in the data. The results are sensitive to the parent particle v2 and composition of reconstructed muon tracks, where the contribution from heavy flavour decays are expected to dominate at pT>2 GeV/c.
Two-particle angular correlations between trigger particles in the forward pseudorapidity range (2.5<|η|<4.0) and associated particles in the central range (|η|<1.0) are measured with the ALICE detector in p-Pb collisions at a nucleon-nucleon centre-of-mass energy of 5.02 TeV. The trigger particles are reconstructed using the muon spectrometer, and the associated particles by the central barrel tracking detectors. In high-multiplicity events, the double-ridge structure, previously discovered in two-particle angular correlations at midrapidity, is found to persist to the pseudorapidity ranges studied in this Letter. The second-order Fourier coefficients for muons in high-multiplicity events are extracted after jet-like correlations from low-multiplicity events have been subtracted. The coefficients are found to have a similar transverse momentum (pT) dependence in p-going (p-Pb) and Pb-going (Pb-p) configurations, with the Pb-going coefficients larger by about 16±6%, rather independent of pT within the uncertainties of the measurement. The data are compared with calculations using the AMPT model, which predicts a different pT and η dependence than observed in the data. The results are sensitive to the parent particle v2 and composition of reconstructed muon tracks, where the contribution from heavy flavour decays are expected to dominate at pT>2 GeV/c.
Two-particle angular correlations between trigger particles in the forward pseudorapidity range (2.5<|η|<4.0) and associated particles in the central range (|η|<1.0) are measured with the ALICE detector in p-Pb collisions at a nucleon-nucleon centre-of-mass energy of 5.02 TeV. The trigger particles are reconstructed using the muon spectrometer, and the associated particles by the central barrel tracking detectors. In high-multiplicity events, the double-ridge structure, previously discovered in two-particle angular correlations at midrapidity, is found to persist to the pseudorapidity ranges studied in this Letter. The second-order Fourier coefficients for muons in high-multiplicity events are extracted after jet-like correlations from low-multiplicity events have been subtracted. The coefficients are found to have a similar transverse momentum (pT) dependence in p-going (p-Pb) and Pb-going (Pb-p) configurations, with the Pb-going coefficients larger by about 16±6%, rather independent of pT within the uncertainties of the measurement. The data are compared with calculations using the AMPT model, which predicts a different pT and η dependence than observed in the data. The results are sensitive to the parent particle v2 and composition of reconstructed muon tracks, where the contribution from heavy flavour decays are expected to dominate at pT>2 GeV/c.
We have has performed the first measurement of the coherent ψ(2S) photo-production cross section in ultra-peripheral Pb-Pb collisions at the LHC. This charmonium excited state is reconstructed via the ψ(2S) →l+l− and ψ(2S) → J/ψπ+π− decays, where the J/ψ decays into two leptons. The analysis is based on an event sample corresponding to an integrated luminosity of about 22 μb−1. The cross section for coherent ψ(2S) production in the rapidity interval −0.9<y<0.9 is dσcohψ(2S)/dy=0.83±0.19(stat+syst) mb. The ψ(2S) to J/ψ coherent cross section ratio is 0.34+0.08−0.07(stat+syst). The obtained results are compared to predictions from theoretical models.