Refine
Year of publication
Document Type
- Preprint (686)
- Article (414)
- Conference Proceeding (1)
- Working Paper (1)
Has Fulltext
- yes (1102)
Is part of the Bibliography
- no (1102)
Keywords
- Heavy Ion Experiments (20)
- Hadron-Hadron Scattering (11)
- Hadron-Hadron scattering (experiments) (11)
- Heavy-ion collision (6)
- Collective Flow (4)
- Jets (4)
- LHC (4)
- Quark-Gluon Plasma (4)
- ALICE experiment (3)
- Heavy Ions (3)
- Jets and Jet Substructure (3)
- breast cancer (3)
- Beauty production (2)
- COPD (2)
- Charm physics (2)
- Diagnostik (2)
- Experimental nuclear physics (2)
- Experimental particle physics (2)
- Früherkennung (2)
- Heavy Quark Production (2)
- KGF (2)
- Lepton-Nucleon Scattering (experiments) (2)
- Mammakarzinom (2)
- Nachsorge (2)
- PDGFRβ (2)
- Particle Correlations and Fluctuations (2)
- Particle and resonance production (2)
- Particle correlations and fluctuations (2)
- Pb–Pb collisions (2)
- Polarization (2)
- QCD (2)
- ROS (2)
- Relativistic heavy-ion collisions (2)
- Richtlinie (2)
- Sestrin 2 (2)
- Single electrons (2)
- Stroke (2)
- diagnosis (2)
- follow‑up (2)
- guideline (2)
- pp collisions (2)
- screening (2)
- 3D printing (1)
- 3D rapid prototyping (1)
- ADHD (1)
- ALICE detector (1)
- ARDS (1)
- ATAD2 (1)
- Alternating Phase Focusing (1)
- Andexanet alpha (1)
- Anti-nuclei (1)
- Apixaban (1)
- Atrial appendage occlusion (1)
- Atrial fibrillation (1)
- BRD2 (1)
- BRD4 (1)
- BROMO-10 (1)
- Beam dynamics simulation (1)
- Biodiversity conservation (1)
- Boosted Jets (1)
- Brain ischemia (1)
- COVID-19 (1)
- Centrality Class (1)
- Centrality Selection (1)
- Charge fluctuations (1)
- Charmonia (1)
- Collective Flow, (1)
- Community dynamics (1)
- Continuous wave (1)
- Critical care (1)
- Dabigatran (1)
- Di-hadron correlations (1)
- Diagnostic differentiation (1)
- ERK inhibitor (1)
- Edoxaban (1)
- Elastic scattering (1)
- Electrogena (1)
- Electron-pion identification (1)
- Electroweak interaction (1)
- Elliptic flow (1)
- Fibre/foam sandwich radiator (1)
- Flow (1)
- Foramen ovale (1)
- Gadobutrol (1)
- Gadopentate dimeglumine (1)
- Hadron-Hadron Scattering Heavy (1)
- Hadron-hadron interactions (1)
- Hadronization (1)
- Hard Scattering (1)
- Heavy Ion Experiment (1)
- Heavy flavor production (1)
- Heavy ion (1)
- Heavy ion collisions (1)
- Heavy ions (1)
- Heavy-flavour decay muons (1)
- Heavy-flavour production (1)
- Heavy-ion (1)
- Idarucizumab (1)
- Individual based modeling (1)
- Interference fragmentation function (1)
- Intracranial embolism (1)
- Intracranial hemorrhage (1)
- Invariant Mass Distribution (1)
- Inverse kinematics (1)
- Ionisation energy loss (1)
- Isoscalar giant resonances (1)
- Jet Physics (1)
- Jet Substructure (1)
- Landscape genetics (1)
- Linear accelerator (1)
- Long distance movement (1)
- MEK inhibitor (1)
- MRI (1)
- Material budget (1)
- Minimum Bias (1)
- Mobile links (1)
- Monte Carlo (1)
- Multi-Parton Interactions (1)
- Multi-wire proportional drift chamber (1)
- Net-charge correlations (1)
- Net-charge fluctuations (1)
- Neural network (1)
- Nonflow (1)
- Noninferiority (1)
- Nonlinear beam dynamics (1)
- Outcome (1)
- PPARγ (1)
- Particle and Resonance Production (1)
- Production Cross Section (1)
- Prognostic models (1)
- Properties of Hadrons (1)
- QGP (1)
- Quark Deconfinement (1)
- Quark Gluon Plasma (1)
- Quark Production (1)
- Quark gluon plasma (1)
- Quarkonium (1)
- RHIC (1)
- Rapidity Range (1)
- Relativistic heavy ion physics (1)
- Renal lesions (1)
- Resolution Parameter (1)
- Rivaroxaban (1)
- STAR (1)
- Species coexistence (1)
- Spin alignment (1)
- Storage ring (1)
- Systematic Uncertainty (1)
- TR (1)
- Time Projection Chamber (1)
- Tracking (1)
- Transition radiation detector (1)
- Transversity (1)
- Trigger (1)
- Vector Boson Production (1)
- Xenon-based gas mixture (1)
- androgen receptor (1)
- attention (1)
- bromodomain inhibitor (1)
- castration-resistant prostate cancer (1)
- chromatin (1)
- conservative dentistry (1)
- dE/dx (1)
- dental education (1)
- detector (1)
- drug resistance (1)
- experimental results (1)
- habitat selection (1)
- heavy ion experiments (1)
- hyperactivity (1)
- impulsivity (1)
- marked lymph node (1)
- metabolic syndrome (1)
- metastasis (1)
- montelukast (1)
- mouse tumor model (1)
- neoadjuvant therapy (1)
- oncogenic RAS (1)
- pancreatic ductal adenocarcinoma (1)
- patent (1)
- polygenic risk score (1)
- polypharmacology (1)
- pranlukast (1)
- quark gluon plasma (1)
- simulation training (1)
- soluble epoxide hydrolase (1)
- substance abuse disorder (1)
- targeted axillary dissection (1)
- taxonomy (1)
- therapy response (1)
- undifferentiated pleomorphic sarcoma (1)
- venturesomeness (1)
- zafirlukast (1)
Institute
- Physik (1076)
- Frankfurt Institute for Advanced Studies (FIAS) (944)
- Informatik (907)
- Medizin (17)
- Informatik und Mathematik (3)
- Pharmazie (3)
- ELEMENTS (2)
- Hochschulrechenzentrum (2)
- Senckenbergische Naturforschende Gesellschaft (1)
Long- and short-range correlations for pairs of charged particles are studied via two-particle angular correlations in pp collisions at s√=13 TeV and p−Pb collisions at sNN−−−√=5.02 TeV. The correlation functions are measured as a function of relative azimuthal angle Δφ and pseudorapidity separation Δη for pairs of primary charged particles within the pseudorapidity interval |η|<0.9 and the transverse-momentum interval 1<pT<4 GeV/c. Flow coefficients are extracted for the long-range correlations (1.6<|Δη|<1.8) in various high-multiplicity event classes using the low-multiplicity template fit method. The method is used to subtract the enhanced yield of away-side jet fragments in high-multiplicity events. These results show decreasing flow signals toward lower multiplicity events. Furthermore, the flow coefficients for events with hard probes, such as jets or leading particles, do not exhibit any significant changes compared to those obtained from high-multiplicity events without any specific event selection criteria. The results are compared with hydrodynamic-model calculations, and it is found that a better understanding of the initial conditions is necessary to describe the results, particularly for low-multiplicity events.
The inclusive production of the charm-strange baryon Ω0c is measured for the first time via its semileptonic decay into Ω−e+νe at midrapidity (|y| < 0.8) in proton–proton (pp) collisions at the centre-of-mass energy √s = 13 TeV with the ALICE detector at the LHC. The transverse momentum (pT) differential cross section multiplied by the branching ratio is presented in the interval 2 < pT < 12 GeV/c. The branching-fraction ratio BR(Ω0c → Ω−e+νe)/BR(Ω0c → Ω−π+) is measured to be 1.12 ± 0.22 (stat.) ± 0.27 (syst.). Comparisons with other experimental measurements, as well as with theoretical calculations, are presented.
The inclusive production of the charm-strange baryon Ω0c is measured for the first time via its semileptonic decay into Ω−e+νe at midrapidity (|y| < 0.8) in proton–proton (pp) collisions at the centre-of-mass energy √s = 13 TeV with the ALICE detector at the LHC. The transverse momentum (pT) differential cross section multiplied by the branching ratio is presented in the interval 2 < pT < 12 GeV/c. The branching-fraction ratio BR(Ω0c → Ω−e+νe)/BR(Ω0c → Ω−π+) is measured to be 1.12 ± 0.22 (stat.) ± 0.27 (syst.). Comparisons with other experimental measurements, as well as with theoretical calculations, are presented.
The measurement of the production of deuterons, tritons and 3He and their antiparticles in Pb-Pb collisions at √sNN = 5.02 TeV is presented in this article. The measurements are carried out at midrapidity (y|< 0.5) as a function of collision centrality using the ALICE detector. The pT-integrated yields, the coalescence parameters and the ratios to protons and antiprotons are reported and compared with nucleosynthesis models. The comparison of these results in different collision systems at different center-of-mass collision energies reveals a suppression of nucleus production in small systems. In the Statistical Hadronisation Model framework, this can be explained by a small correlation volume where the baryon number is conserved, as already shown in previous fluctuation analyses. However, a different size of the correlation volume is required to describe the proton yields in the same data sets. The coalescence model can describe this suppression by the fact that the wave functions of the nuclei are large and the fireball size starts to become comparable and even much smaller than the actual nucleus at low multiplicities.
The knowledge of the material budget with a high precision is fundamental for measurements of direct photon production using the photon conversion method due to its direct impact on the total systematic uncertainty. Moreover, it influences many aspects of the charged-particle reconstruction performance. In this article, two procedures to determine data-driven corrections to the material-budget description in ALICE simulation software are developed. One is based on the precise knowledge of the gas composition in the Time Projection Chamber. The other is based on the robustness of the ratio between the produced number of photons and charged particles, to a large extent due to the approximate isospin symmetry in the number of produced neutral and charged pions. Both methods are applied to ALICE data allowing for a reduction of the overall material budget systematic uncertainty from 4.5% down to 2.5%. Using these methods, a locally correct material budget is also achieved. The two proposed methods are generic and can be applied to any experiment in a similar fashion.
The production of K∗(892)± meson resonance is measured at midrapidity (|y|<0.5) in Pb-Pb collisions at sNN−−−√=5.02 TeV using the ALICE detector at the LHC. The resonance is reconstructed via its hadronic decay channel K∗(892)±→K0Sπ±. The transverse momentum distributions are obtained for various centrality intervals in the pT range of 0.4-16 GeV/c. The reported measurements of integrated yields, mean transverse momenta, and particle yield ratios are consistent with previous ALICE measurements for K∗(892)0. The pT-integrated yield ratio 2K∗(892)±/(K++K−) in central Pb-Pb collisions shows a significant suppression (9.3σ) relative to pp collisions. Thermal model calculations overpredict the particle yield ratio. Although both simulations consider the hadronic phase, only HRG-PCE accurately represents the measurements, whereas MUSIC+SMASH tends to overpredict them. These observations, along with the kinetic freeze-out temperatures extracted from the yields of light-flavored hadrons using the HRG-PCE model, indicate a finite hadronic phase lifetime, which increases towards central collisions. The pT-differential yield ratios 2K∗(892)±/(K++K−) and 2K∗(892)±/(π++π−) are suppressed by up to a factor of five at pT<2 GeV/c in central Pb-Pb collisions compared to pp collisions at s√= 5.02 TeV. Both particle ratios and are qualitatively consistent with expectations for rescattering effects in the hadronic phase. The nuclear modification factor shows a smooth evolution with centrality and is below unity at pT>8 GeV/c, consistent with measurements for other light-flavored hadrons. The smallest values are observed in most central collisions, indicating larger energy loss of partons traversing the dense medium.
The production of K∗(892)± meson resonance is measured at midrapidity (|y|<0.5) in Pb-Pb collisions at sNN−−−√=5.02 TeV using the ALICE detector at the LHC. The resonance is reconstructed via its hadronic decay channel K∗(892)±→K0Sπ±. The transverse momentum distributions are obtained for various centrality intervals in the pT range of 0.4-16 GeV/c. The reported measurements of integrated yields, mean transverse momenta, and particle yield ratios are consistent with previous ALICE measurements for K∗(892)0. The pT-integrated yield ratio 2K∗(892)±/(K++K−) in central Pb-Pb collisions shows a significant suppression (9.3σ) relative to pp collisions. Thermal model calculations overpredict the particle yield ratio. Although both simulations consider the hadronic phase, only HRG-PCE accurately represents the measurements, whereas MUSIC+SMASH tends to overpredict them. These observations, along with the kinetic freeze-out temperatures extracted from the yields of light-flavored hadrons using the HRG-PCE model, indicate a finite hadronic phase lifetime, which increases towards central collisions. The pT-differential yield ratios 2K∗(892)±/(K++K−) and 2K∗(892)±/(π++π−) are suppressed by up to a factor of five at pT<2 GeV/c in central Pb-Pb collisions compared to pp collisions at s√= 5.02 TeV. Both particle ratios and are qualitatively consistent with expectations for rescattering effects in the hadronic phase. The nuclear modification factor shows a smooth evolution with centrality and is below unity at pT>8 GeV/c, consistent with measurements for other light-flavored hadrons. The smallest values are observed in most central collisions, indicating larger energy loss of partons traversing the dense medium.
The total charm-quark production cross section per unit of rapidity dσ(cc)/dy, and the fragmentation fractions of charm quarks to different charm-hadron species f(c → hc), are measured for the first time in p–Pb collisions at √sNN = 5.02 TeV at midrapidity (−0.96 < y < 0.04 in the centre-ofmass frame) using data collected by ALICE at the CERN LHC. The results are obtained based on all the available measurements of prompt production of ground-state charm-hadron species: D0, D+,D+s, and J/ψ mesons, and Λ+cand Ξ0cbaryons. The resulting cross section is dσ(cc)/dy = 219.6±6.3 (stat.)+10.5−11.8(syst.)+7.6−2.9(extr.)±5.4 (BR)±4.6 (lumi.)±19.5 (rapidity shape) +15.0 (Ω0c) mb, which is consistent with a binary scaling of pQCD calculations from pp ollisions. The measured fragmentation fractions are compatible with those measured in pp collisions at √s = 5.02 and 13 TeV, showing an increase in the relative production rates of charm baryons with respect to charm mesons in pp and p–Pb collisions compared with e+e − and e−p collisions. The pT-integrated nuclear modification factor of charm quarks, RpPb(cc) = 0.91±0.04 (stat.) +0.08 −0.09 (syst.) +0.04 −0.03 (extr.)±0.03 (lumi.), is found to be consistent with unity and with theoretical predictions including nuclear modifications of the parton distribution functions.
This work aims to differentiate strangeness produced from hard processes (jet-like) and softer processes (underlying event) by measuring the angular correlation between a high-momentum trigger hadron (h) acting as a jet-proxy and a produced strange hadron (φ(1020) meson). Measuring h–φ correlations at midrapidity in p–Pb collisions at √sNN = 5.02 TeV as a function of event multiplicity provides insight into the microscopic origin of strangeness enhancement in small collision systems. The jet-like and the underlying-event-like strangeness production are investigated as a function of event multiplicity. They are also compared between a lower and higher momentum region. The evolution of the per-trigger yields within the near-side (aligned with the trigger hadron) and away-side (in the opposite direction of the trigger hadron) jet is studied separately, allowing for the characterization of two distinct jet-like production regimes. Furthermore, the h–φ correlations within the underlying event give access to a production regime dominated by soft production processes, which can be compared directly to the in-jet production. Comparisons between h–φ and dihadron correlations show that the observed strangeness enhancement is largely driven by the underlying event, where the φ/h ratio is significantly larger than within the jet regions. As multiplicity increases, the fraction of the total φ(1020) yield coming from jets decreases compared to the underlying event production, leading to high-multiplicity events being dominated by the increased strangeness production from the underlying event
The production cross section of inclusive isolated photons has been measured by the ALICE experiment at the CERN LHC in pp collisions at centre-of-momentum energy of s√=13 TeV collected during the LHC Run 2 data-taking period. The measurement is performed by combining the measurements of the electromagnetic calorimeter EMCal and the central tracking detectors ITS and TPC, covering a pseudorapidity range of |ηγ|<0.67 and a transverse momentum range of 7<pγT<200 GeV/c. The result extends to lower pγT and xγT=2pγT/s√ ranges, the lowest xγT of any isolated photon measurements to date, extending significantly those measured by the ATLAS and CMS experiments towards lower pγT at the same collision energy with a small overlap between the measurements. The measurement is compared with next-to-leading order perturbative QCD calculations and the results from the ATLAS and CMS experiments as well as with measurements at other collision energies. The measurement and theory prediction are in agreement with each other within the experimental and theoretical uncertainties.