Refine
Year of publication
Document Type
- Preprint (594)
- Article (388)
- Doctoral Thesis (1)
Has Fulltext
- yes (983)
Is part of the Bibliography
- no (983)
Keywords
- Heavy Ion Experiments (18)
- Hadron-Hadron scattering (experiments) (12)
- Heavy-ion collision (6)
- Hadron-Hadron Scattering (4)
- Quark-Gluon Plasma (4)
- Heavy Ions (3)
- Jets and Jet Substructure (3)
- LHC (3)
- ALICE experiment (2)
- CIK cells (2)
- Charm physics (2)
- Diffraction (2)
- Elastic scattering (2)
- Experimental nuclear physics (2)
- Experimental particle physics (2)
- Jets (2)
- Lepton-Nucleon Scattering (experiments) (2)
- NK cells (2)
- Particle and resonance production (2)
- Particle correlations and fluctuations (2)
- Pb–Pb collisions (2)
- Polarization (2)
- RHIC (2)
- ALICE detector (1)
- Allogeneic hematopoietic stem (1)
- Allogeneic stem cell transplantation (1)
- Anti-nuclei (1)
- BRAF (1)
- Beauty production (1)
- CD16 (1)
- CD3/CD19 depletion (1)
- CD56 (1)
- Canonical suppression (1)
- Centrality Class (1)
- Centrality Selection (1)
- Charged-particle multiplicity (1)
- Charmonia (1)
- Chimerism (1)
- Cold nuclear matter effects (1)
- Collective Flow (1)
- Collectivity (1)
- Correlation (1)
- Di-hadron correlations (1)
- Electron-pion identification (1)
- Electroweak interaction (1)
- Elliptic flow (1)
- Fibre/foam sandwich radiator (1)
- Flow (1)
- Forward physics (1)
- Groomed jet radius (1)
- Hadron-Hadron Scattering Heavy (1)
- Hadron-hadron interactions (1)
- Hadronization (1)
- Heavy Ion Experiment (1)
- Heavy Quark Production (1)
- Heavy ion collisions (1)
- Heavy ions (1)
- Heavy-flavour decay muons (1)
- Heavy-flavour production (1)
- Heavy-ion (1)
- IL-15 (1)
- IL-21 (1)
- Immunosuppressive therapy (1)
- Immunotherapy (1)
- Interference fragmentation function (1)
- Invariant Mass Distribution (1)
- Ionisation energy loss (1)
- J/ψ suppression (1)
- Jet substructure (1)
- Kidney (1)
- LCH (1)
- Langerhans cell histiocytosis (1)
- MMF (1)
- MPA (1)
- Minimal residual disease (1)
- Minimum Bias (1)
- Monte Carlo (1)
- Multi-wire proportional drift chamber (1)
- Multiple parton interactions (1)
- Net-charge correlations (1)
- Net-charge fluctuations (1)
- Neural network (1)
- Nonflow (1)
- Particle Correlations and Fluctuations (1)
- Particle production (1)
- Pre-emptive immunotherapy (1)
- Production Cross Section (1)
- Properties of Hadrons (1)
- Proton-proton collisions (1)
- QCD (1)
- Quark Gluon Plasma (1)
- Quark Production (1)
- Quark gluon plasma (1)
- Quarkonium (1)
- Quark–gluon plasma (1)
- Rapidity Range (1)
- Relativistic heavy ion physics (1)
- Relativistic heavy-ion collisions (1)
- Resolution Parameter (1)
- Resonances (1)
- STAR (1)
- Shear viscosity (1)
- Single electrons (1)
- SoftDrop (1)
- Spin alignment (1)
- Splitting function (1)
- Strangeness enhancement (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)
- allogeneic transplantation (1)
- body plethysmography (1)
- bronchiolitis obliterans syndrome (1)
- cell therapy (1)
- cell transplantation (1)
- child (1)
- children (1)
- dE/dx (1)
- ex vivo expansion (1)
- graft-versus host (1)
- heavy ion experiments (1)
- hospital exemption (1)
- immune reconstitution (1)
- immunotherapy (1)
- lung function (1)
- mesenchymal stromal cell (1)
- mesenchymal stromal cells (1)
- neuroblastoma (1)
- non-malignant hematological diseases (1)
- p+p collisions (1)
- pp collisions (1)
- quark gluon plasma (1)
- reference values (1)
- refractory aGvHD (1)
- severe congenital neutropenia (1)
- sickle cell anemia (1)
- spirometry (1)
- steroid-resistant aGvHD (1)
- thalassemia (1)
- transplantation (1)
- vemurafenib (1)
Institute
- Physik (923)
- Frankfurt Institute for Advanced Studies (FIAS) (849)
- Informatik (767)
- Medizin (11)
- Informatik und Mathematik (3)
- Hochschulrechenzentrum (2)
- Pharmazie (2)
- Georg-Speyer-Haus (1)
The inclusive J/ψ transverse momentum spectra and nuclear modification factors are reported at midrapidity (|y| < 1.0) in Au+Au collisions at √sN N = 39, 62.4 and 200 GeV taken by the STAR experiment. A suppression of J/ψ production, with respect to the production in p + p scaled by the number of binary nucleon–nucleon collisions, is observed in central Au+Au collisions at these three energies. No significant energy dependence of nuclear modification factors is found within uncertainties. The measured nuclear modification factors can be described by model calculations that take into account both suppression of direct J/ψ production due to the color screening effect and J/ψ regeneration from recombination of uncorrelated charm–anticharm quark pairs.
The transversity distribution, which describes transversely polarized quarks in transversely polarized nucleons, is a fundamental component of the spin structure of the nucleon, and is only loosely constrained by global fits to existing semi-inclusive deep inelastic scattering (SIDIS) data. In transversely polarized p↑+p collisions it can be accessed using transverse polarization dependent fragmentation functions which give rise to azimuthal correlations between the polarization of the struck parton and the final state scalar mesons.This letter reports on spin dependent di-hadron correlations measured by the STAR experiment. The new dataset corresponds to 25 pb−1 integrated luminosity of p↑+p collisions at s=500 GeV, an increase of more than a factor of ten compared to our previous measurement at s=200 GeV. Non-zero asymmetries sensitive to transversity are observed at a Q2 of several hundred GeV and are found to be consistent with the former measurement and a model calculation. We expect that these data will enable an extraction of transversity with comparable precision to current SIDIS datasets but at much higher momentum transfers where subleading effects are suppressed.
We report the direct virtual photon invariant yields in the transverse momentum ranges 1 < pT < 3 GeV/c and 5 < pT < 10 GeV/c at mid-rapidity derived from the dielectron invariant mass continuum region 0.10 < Mee < 0.28 GeV/c2 for 0–80% minimum-bias Au+Au collisions at √sN N = 200 GeV. A clear excess in the invariant yield compared to the nuclear overlap function T A A scaled p + p reference is observed in the pT range 1 < pT < 3 GeV/c. For pT > 6 GeV/c the production follows T A A scaling. Model calculations with contributions from thermal radiation and initial hard parton scattering are consistent ithin uncertainties with the direct virtual photon invariant yield.
We report inclusive photon measurements about midrapidity ( |y| <0.5 ) from 197 Au + 197 Au collisions at sqrt[sNN ]=130 GeV at RHIC. Photon pair conversions were reconstructed from electron and positron tracks measured with the Time Projection Chamber (TPC) of the STAR experiment. With this method, an energy resolution of Delta E/E ~ 2% at 0.5 GeV has been achieved. Reconstructed photons have also been used to measure the transverse momentum ( pt ) spectra of pi 0 mesons about midrapidity ( |y| <1 ) via the pi 0 --> gamma gamma decay channel. The fractional contribution of the pi 0 --> gamma gamma decay to the inclusive photon spectrum decreases by 20%±5% between pt =1.65 GeV/c and pt =2.4 GeV/c in the most central events, indicating that relative to pi 0 --> gamma gamma decay the contribution of other photon sources is substantially increasing.
We present the first large-acceptance measurement of event-wise mean transverse momentum <pt> fluctuations for Au-Au collisions at nucleon-nucleon center-of-momentum collision energy sqrt[sNN] = 130 GeV. The observed nonstatistical <pt> fluctuations substantially exceed in magnitude fluctuations expected from the finite number of particles produced in a typical collision. The r.m.s. fractional width excess of the event-wise <pt> distribution is 13.7±0.1(stat) ±1.3(syst)% relative to a statistical reference, for the 15% most-central collisions and for charged hadrons within pseudorapidity range | eta |<1,2 pi azimuth, and 0.15 <= pt <= 2 GeV/c. The width excess varies smoothly but nonmonotonically with collision centrality and does not display rapid changes with centrality which might indicate the presence of critical fluctuations. The reported <pt> fluctuation excess is qualitatively larger than those observed at lower energies and differs markedly from theoretical expectations. Contributions to <pt> fluctuations from semihard parton scattering in the initial state and dissipation in the bulk colored medium are discussed.
We present STAR measurements of the azimuthal anisotropy parameter v2 and the binary-collision scaled centrality ratio RCP for kaons and lambdas ( Lambda + Lambda -bar) at midrapidity in Au+Au collisions at sqrt[sNN]=200 GeV. In combination, the v2 and RCP particle-type dependencies contradict expectations from partonic energy loss followed by standard fragmentation in vacuum. We establish pT ~ 5 GeV/c as the value where the centrality dependent baryon enhancement ends. The K0S and Lambda + Lambda -bar v2 values are consistent with expectations of constituent-quark-number scaling from models of hadron formation by parton coalescence or recombination.
Pion-kaon correlation functions are constructed from central Au+Au STAR data taken at sqrt[sNN]=130 GeV by the STAR detector at the Relativistic Heavy Ion Collider (RHIC). The results suggest that pions and kaons are not emitted at the same average space-time point. Space-momentum correlations, i.e., transverse flow, lead to a space-time emission asymmetry of pions and kaons that is consistent with the data. This result provides new independent evidence that the system created at RHIC undergoes a collective transverse expansion.
Data from the first physics run at the Relativistic Heavy-Ion Collider at Brookhaven National Laboratory, Au+Au collisions at sqrt[sNN]=130 GeV, have been analyzed by the STAR Collaboration using three-pion correlations with charged pions to study whether pions are emitted independently at freeze-out. We have made a high-statistics measurement of the three-pion correlation function and calculated the normalized three-particle correlator to obtain a quantitative measurement of the degree of chaoticity of the pion source. It is found that the degree of chaoticity seems to increase with increasing particle multiplicity.
We report high statistics measurements of inclusive charged hadron production in Au+Au and p+p collisions at sqrt[sNN]=200 GeV. A large, approximately constant hadron suppression is observed in central Au+Au collisions for 5<pT<12 GeV/c. The collision energy dependence of the yields and the centrality and pT dependence of the suppression provide stringent constraints on theoretical models of suppression. Models incorporating initial-state gluon saturation or partonic energy loss in dense matter are largely consistent with observations. We observe no evidence of pT-dependent suppression, which may be expected from models incorporating jet attenuation in cold nuclear matter or scattering of fragmentation hadrons.
The balance function is a new observable based on the principle that charge is locally conserved when particles are pair produced. Balance functions have been measured for charged particle pairs and identified charged pion pairs in Au+Au collisions at sqrt[sNN]=130 GeV at the Relativistic Heavy Ion Collider using STAR. Balance functions for peripheral collisions have widths consistent with model predictions based on a superposition of nucleon-nucleon scattering. Widths in central collisions are smaller, consistent with trends predicted by models incorporating late hadronization.