Refine
Year of publication
Document Type
- Preprint (1137) (remove)
Language
- English (1137) (remove)
Has Fulltext
- yes (1137)
Is part of the Bibliography
- no (1137)
Keywords
- Kollisionen schwerer Ionen (33)
- heavy ion collisions (27)
- Quark-Gluon-Plasma (14)
- equation of state (13)
- QGP (12)
- quark-gluon plasma (10)
- Quark Gluon Plasma (9)
- quark (9)
- Hadron (8)
- Meson (8)
- Zustandsgleichung (8)
- collision (8)
- heavy-ion collisions (8)
- meson (8)
- quark gluon plasma (7)
- Energie (6)
- Kollision (6)
- Quanten-Chromodynamik (6)
- Quark (6)
- UrQMD (6)
- baryon (6)
- heavy ion collision (6)
- LHC (5)
- MEMOs (5)
- QCD (5)
- Quantum Chromodynamic (5)
- RHIC (5)
- Relativistic heavy-ion collisions (5)
- energy (5)
- hadronic (5)
- quark matter (5)
- quark-gluon-plasma (5)
- relativistic (5)
- Dirac (4)
- Quark Materie (4)
- SPS (4)
- black holes (4)
- hadron (4)
- heavy ion colliders (4)
- nucleon (4)
- Bremsstrahlung (3)
- Gross-Neveu model (3)
- Molekulare Dynamik (3)
- Neutronenstern (3)
- Nukleon (3)
- RQMD (3)
- Strahl (3)
- Strangelets (3)
- Ultrarelativistic Quantum Molecular Dynamics (3)
- UrQMD Modell (3)
- Zustandsgleichungen (3)
- bremsstrahlung (3)
- density functional theory (3)
- gluon (3)
- hadronic matter (3)
- heavy ion (3)
- hydrodynamical model (3)
- hydrodynamisches Modell (3)
- inhomogeneous phases (3)
- jet (3)
- kaon (3)
- mean-field (3)
- moat regime (3)
- neutron star (3)
- nuclear collisions (3)
- phase diagram (3)
- relativistic quantum molecular dynamics (3)
- relativistisch (3)
- schwere Ion Kollision (3)
- stability analysis (3)
- strangelets (3)
- two-point function (3)
- wave-function renormalization (3)
- α-RuCl3 (3)
- Baryon (2)
- Dichte (2)
- Dirac-Brueckner theory (2)
- Dirac-Brückner Theorie (2)
- Drell-Yan (2)
- Kaon (2)
- Kerne (2)
- Lagrangian (2)
- Materie (2)
- Meson production (2)
- Nambu Jona-Lasinio Modell (2)
- Nambu Jona-Lasinio model (2)
- Partikelspektren (2)
- Phasenübergang (2)
- Plasma (2)
- QMD (2)
- Quanten Chromodynamik (2)
- Quantenchromodynamik (2)
- Quantum Chromodynamics (2)
- Quantum Molecular Dynamics (2)
- Quark gluon Plasma (2)
- Quark-Gluon Plasma (2)
- Teilchen (2)
- Temperatur (2)
- Ultrarelativistic Quantum Molecular Model (2)
- Ultrarelativistisches Quant Molekulares Modell (2)
- UrQMD model (2)
- Walecka model (2)
- antibaryon (2)
- antikaon (2)
- black hole (2)
- bound state (2)
- critical phenomena (2)
- degrees of freedom (2)
- dense matter (2)
- dichte Materie (2)
- electronic transport (2)
- freeze out (2)
- große Extradimensionen (2)
- hadronische Materie (2)
- hydrodynamics (2)
- kinetic equation (2)
- kinetische Gleichung (2)
- large extra dimensions (2)
- masse (2)
- matter (2)
- nuclear broadening effect (2)
- nuclear matter (2)
- nuclei (2)
- p-n junction (2)
- particle spectra (2)
- particles (2)
- plasma (2)
- prompt photon (2)
- relativistic heavy ion collision (2)
- relativistische schwere Ion Kollision (2)
- scanning tunneling microscopy (2)
- scattering (2)
- schwarze Löcher (2)
- schwere Ion-Kollision (2)
- schwere Ion-Kollisionen (2)
- statistical coalescence model (2)
- statistisches Fusionsmodell (2)
- strange hadronic matter (2)
- temperature (2)
- thermalization (2)
- ultrarelativistisch (2)
- ultrarelativistische (2)
- (QGP) (1)
- 2D vdW magnets (1)
- A+A collisions (1)
- ADD (1)
- AGS (1)
- Absorption (1)
- Anisotropic flow (1)
- Anti-Kaon (1)
- Antikaon (1)
- Antiteilchen (1)
- Ausfrieren (1)
- Bjorken Modell (1)
- Bjorken model (1)
- Boltzmann-Uehling-Uhlenbeck (1)
- Boltzmann-Uehling-Uhlenbeck Gleichung (1)
- Boltzmann-Uehling-Uhlenbeck equation (1)
- CDM (1)
- Charge fluctuations (1)
- Charm Produktion (1)
- Charmed mesons (1)
- Charmed quarks (1)
- Charmonium (1)
- Charmonium Produktion (1)
- Charmonium production (1)
- Chemical equilibration (1)
- Chemikalie (1)
- Chemische Gleichgewichtherstellung (1)
- Chiral symmetries (1)
- Cluster distribution (1)
- Cluster integrals (1)
- Collision (1)
- Conservation Laws (1)
- D-Dbar (1)
- D-meson spectral density (1)
- DN interaction (1)
- Deuteron (1)
- Dielectron (1)
- Dielektron (1)
- Dilepton (1)
- Drell-Yan production (1)
- Drell-Yan ratio (1)
- Drell-Yan-Prozess (1)
- Dynamik (1)
- Dyson-Schwinger equation (1)
- EOS (1)
- Elektron (1)
- Elementarteilchen (1)
- Elementary particle (1)
- Equation of State (1)
- Ereignisschwankungen (1)
- Erhaltungsgesetz (1)
- Event-by-event fluctuations (1)
- FOS: Physical sciences (1)
- Freeze Out (1)
- Freeze out (1)
- Freiheitsgrad (1)
- Freiheitsgrade (1)
- Gluon (1)
- Gluon-Plasma (1)
- Graphene (1)
- Gravitational radiation (1)
- Gyromagnetic Moment (1)
- HICs (1)
- Hadron Gas Modell (1)
- Hadron Materie (1)
- Hadronenbeschleuniger (1)
- Hartree (1)
- Heavy ion collisions (1)
- High Energy Physics - Phenomenology (1)
- Hohe Energie (1)
- Homogeneous nucleation (1)
- Hypermaterie (1)
- IQMD Modell (1)
- IQMD model (1)
- In-Medium Zerfall (1)
- J/psi yield (1)
- J/ϕ (1)
- K-Meson (1)
- Kaons (1)
- Kern-Kern Kollision (1)
- Kernkollision (1)
- Kernkollisionen (1)
- Kernmaterie (1)
- Kernreaktion Modell und Methoden (1)
- Kollisionen des schweren Ions (1)
- Kollisionen schwere Ionen (1)
- Korrelation (1)
- Kosmischer Strahl (1)
- Lagrangian . equation of state (1)
- Lambda-c(2593) resonance (1)
- Large Hadron Collider (1)
- Lorentz (1)
- Lorentz contraction (1)
- Mach Shocks (1)
- Masse (1)
- Massenspektrum (1)
- Material budget (1)
- Metastable Exotic Multistrange Objects (1)
- Modell (1)
- Monte-Carlo model for relativistic heavy ion collisions (1)
- Nambu Jona Lasinio Modell (1)
- Nambu Jona Lasinio model (1)
- Nambu-Jona-Lasinio (1)
- Nambu-Jona-Lasinio Modell (1)
- Nambu-Jona-Lasinio model (1)
- Neutron (1)
- Nichtumkehrbarkeit (1)
- Nuclear Experiment (nucl-ex) (1)
- Nuclear Theory (1)
- Nuclear-reaction models and methods (1)
- Nucleon (1)
- OMD (1)
- Particle Spectra (1)
- Partikelzahlschwankung (1)
- Pb+Pb collisions (1)
- Photon (1)
- Pion (1)
- Pion Gas (1)
- Potential (1)
- Produktion von pentaquark (1)
- Protonen (1)
- QCD medium (1)
- QCD plasma (1)
- QFT on curved background (1)
- QGP hadrons phase transition (1)
- QGP signals (1)
- QMC (1)
- Quanten Chromodynamic (1)
- Quanten-Molekular-Dynamic (1)
- Quanten-Molekular-Dynamik (1)
- Quantendynamik (1)
- Quantum chromodynamics (1)
- Quark Antiquark (1)
- Quark-Sterne (1)
- Quarkonium (1)
- RHIC energies (1)
- Raum Zeit (1)
- Relativistic Excluded Volumes (1)
- Relativistic Heavy Ion Collider (1)
- Relativistisch (1)
- Relativistische Kollisionen des schwere Ions (1)
- Rho-Meson (1)
- SENECA model (1)
- SHM (1)
- SU (3) - Modell (1)
- SU (3) - Symmetrie (1)
- SU (3) Modell (1)
- SU(3) model (1)
- SU(3)-model (1)
- SU(3)-symmetry (1)
- Schwerionenphysik (1)
- Skalarpotential (1)
- Spektren (1)
- SrNi2P2 (1)
- Statistical model (1)
- Super Proton Synchrotron (1)
- Symmetrie (1)
- Teilchenbeschleuniger (1)
- Teilchenspektren (1)
- Teilchenverteilung (1)
- Tevatron (1)
- Transport (1)
- Two-component and Multi-component Hadron Gas (1)
- UHECR (1)
- URQMD (1)
- Ultra-relativistic Quantum Molecular Dynamic (1)
- Ultra-relativistic Quantum Molecular Dynamics model (1)
- Ultrarelativisitic Quantum Molecular Dynamics model (1)
- Ultrarelativisitisches (1)
- Ultrarelativistisches Quant Molekular Dynamik (1)
- Van der Waals (1)
- Van der Waals Excluded Volume Model (1)
- Van der Waals model (1)
- Vektorpotential (1)
- Verbreitung (1)
- Vielkörperkorrelationen (1)
- Walecka Modell (1)
- Walecka-Modell (1)
- Walecka-model (1)
- Zusammenstoß (1)
- absorption (1)
- anti-kaon (1)
- antiparticles (1)
- binary neutron star mergers (1)
- binaryfission (1)
- broadening (1)
- canonical strangeness suppression (1)
- canonical suppression (1)
- charm (1)
- charm and bottom Produktion (1)
- charm and bottom production (1)
- chemical (1)
- chemical freezeout (1)
- chemisches Ausfrieren (1)
- chiral (1)
- chiral SU (3) (1)
- chiral SU(3) (1)
- chiral SU(3) model (1)
- chiral phase (1)
- cold baryon rich matter (1)
- cold dark matter (1)
- cold quark matter (1)
- collective flow (1)
- color current (1)
- colour model (1)
- coloured quark dynamic (1)
- confinement (1)
- conservation law (1)
- conservation laws (1)
- cosmic rays (1)
- cosmology (1)
- coupled-channel self-consistent calculation (1)
- deconfinement phase transition (1)
- dense (1)
- density perturbations (1)
- detector (1)
- deuteron (1)
- dilepton (1)
- dileptons (1)
- directed flow (1)
- early freeze–out (1)
- elastic particle (1)
- electron (1)
- electron-phonon interactions (1)
- electronic band structure (1)
- elliptic flow analysis (1)
- energie (1)
- event-by-event fluctuations (1)
- exotic matter (1)
- exotische Materie (1)
- experimental results (1)
- extra dimension (1)
- femtoscopy data (1)
- finite temperature (1)
- flavour model (1)
- flow (1)
- flow of nucleons (1)
- fluctuations (1)
- freezeout (1)
- gauge/gravity duality (1)
- gluon plasma (1)
- graphene (1)
- gravitational radiation (1)
- großer hadron collider (1)
- gyromagnetic moment (1)
- hadron hadron Kollision (1)
- hadron hadron collision (1)
- hadron interaction models (1)
- hadron matter (1)
- hadron yield (1)
- hadronic freeze-out (1)
- hadronic model (1)
- hard-core (1)
- heavy Hagedorn states (1)
- heavy-flavor quarks (1)
- heiße Kernmaterie (1)
- heiße Materie (1)
- heiße Pion Materie (1)
- heiße hadronic Materie (1)
- heiße und dichte Kernmaterie (1)
- heiße und dichte Materie (1)
- hheterostructures (1)
- hidden charm production (1)
- high energie (1)
- high energy (1)
- high energy cosmic ray (1)
- high-energy nuclear collisions (1)
- hitze (1)
- hohe Energie (1)
- homogene Nukleation (1)
- hot (1)
- hot and dense matter (1)
- hot and dense nuclear matter (1)
- hot hadronic matter (1)
- hot hypernuclear matter (1)
- hot matter (1)
- hot pion matter (1)
- hybrid approach to air shower simulations (1)
- hypermatter (1)
- hyperonic Materie (1)
- hyperonic matter (1)
- ideal gas (1)
- ideales Gas (1)
- in-medium decay (1)
- in-medium properties (1)
- inclusive reaction (1)
- integro-differential equation (1)
- inverse slope parameter (1)
- irreversibility state (1)
- kalte dunkle Materie (1)
- kaons (1)
- kinetisches Ausfrieren (1)
- kinetisches Modell (1)
- kollektive strom (1)
- kollidieren (1)
- lange hadron collider (1)
- large hadron collider (1)
- lattice field theory (1)
- lead (1)
- longitudinal flow (1)
- low energy hadronic model (1)
- many-body correlations (1)
- mass spectra (1)
- maximum recoverable strain (1)
- meson mass (1)
- micropillar compression (1)
- microscopic transport theory (1)
- mikroskopische Transporttheorie (1)
- minimal length (1)
- minimale Länge (1)
- mixing of hadron sources (1)
- moiré patterns (1)
- multicluster fission (1)
- muon (1)
- neutralino (1)
- neutron and proton chemical potential (1)
- neutron stars (1)
- non-equilibrium dynamics (1)
- non-equilibrium quantum field dynamics (1)
- nuclear (1)
- nuclear cold fission (1)
- nuclear shadowing (1)
- nuclear system (1)
- nucleus-nucleus collisions (1)
- offene charm Produktion (1)
- open and hidden charm (1)
- open and hidden charm production (1)
- open charm production (1)
- open charm yield (1)
- p p (1)
- pQCD (1)
- particle distribution (1)
- particle number fluctuations (1)
- particle ratios (1)
- partonic (1)
- percolation (1)
- perturbative Quantum Chromodynamic (1)
- phase transition (1)
- photoelectron spectroscopy (1)
- photon (1)
- pion (1)
- pion gas (1)
- pions (1)
- production of pentaquark (1)
- pseudoelasticity (1)
- quantum chromodynamics (1)
- quark antiquark (1)
- quark gluon Plasma (1)
- quark mass (1)
- quark-meson coupling model (1)
- quarkonium (1)
- reich (1)
- relativistic fluid of quarks (1)
- relativistic heavy ion collider (1)
- relativistic heavy ions (1)
- relativistic nuclear collisions (1)
- relativistischer Schwerionen-Zusammenstoßer (1)
- rho meson (1)
- rich (1)
- saddle point shapes (1)
- scalar potential (1)
- schwarzes Loch (1)
- schwere Hagedorn Zustände (1)
- schwere Ione (1)
- schwere Ionen Kollision (1)
- schweres Ion (1)
- second cluster integral (1)
- space-momentum correlation (1)
- space-time (1)
- spectra (1)
- stabile kalte Kerne (1)
- stable cold nuclear matter (1)
- statistical model (1)
- statistical production of charmonia (1)
- strange (1)
- strange quark star (1)
- strangeness (1)
- sulfur (1)
- superheavy (1)
- superheavy nuclei (1)
- superschwer (1)
- superschwere Kerne (1)
- supersymmetric particle (1)
- symmetry potential (1)
- system (1)
- thermal (1)
- transition-metal oxides (1)
- transport models (1)
- transverse flow (1)
- true ternary fission (1)
- ultra-relativistic heavy ion collision (1)
- ultrarelativistic (1)
- ultrarelativistic energie (1)
- ultrarelativistic heavy ion collision (1)
- ultrarelativistic heavy-ion collision (1)
- ultrarelativistische Kollision des schweren Ionen (1)
- ultrarelativistische energie (1)
- ultrarelativistische schwere Ion Kollision (1)
- van der Waals (1)
- vector mesons (1)
- vector potential (1)
- zweite Gruppenintegral (1)
Institute
- Physik (1137) (remove)
We study the time scale for pressure equilibration in heavy ion collisions at AGS energies within the three-fluid hydrodynamical model and a microscopic cascade model (UrQMD). We find that kinetic equilibrium is reached in both models after a time of 5 fm/c (center-of-mass time). Thus, observables which are sensitive to the early stage of the reaction differ considerably from the expectations within the instant thermalization scenario (one-fluid hydrodynamical model).
Abstract: We study transverse expansion and directed flow in Au(11AGeV)Au reactions within a multi-fluid dynamical model. Although we do not employ an equation of state (EoS) with a first order phase transition, we find a slow increase of the transverse velocities of the nucleons with time. A similar behaviour can be observed for the directed nucleon flow. This is due to non-equilibrium e ects which also lead to less and slower conversion of longitudinal into transverse momentum. We also show that the proton rapidity distribution at CERN energies, as calculated within this model, agrees well with the preliminary NA44-data.
The study of (anti-)deuteron production in pp collisions has proven to be a powerful tool to investigate the formation mechanism of loosely bound states in high energy hadronic collisions. In this paper the production of (anti-)deuterons is studied as a function of the charged particle multiplicity in inelastic pp collisions at s√=13 TeV using the ALICE experiment. Thanks to the large number of accumulated minimum bias events, it has been possible to measure (anti-)deuteron production in pp collisions up to the same charged particle multiplicity (dNch/dη∼26) as measured in p-Pb collisions at similar centre-of-mass energies. Within the uncertainties, the deuteron yield in pp collisions resembles the one in p-Pb interactions, suggesting a common formation mechanism behind the production of light nuclei in hadronic interactions. In this context the measurements are compared with the expectations of coalescence and Statistical Hadronisation Models (SHM).
The study of (anti-)deuteron production in pp collisions has proven to be a powerful tool to investigate the formation mechanism of loosely bound states in high energy hadronic collisions. In this paper the production of (anti-)deuterons is studied as a function of the charged particle multiplicity in inelastic pp collisions at s√=13 TeV using the ALICE experiment. Thanks to the large accumulated integrated luminosity, it has been possible to measure (anti-)deuteron production in pp collisions up to the same charged particle multiplicity (dNch/dη∼26) as measured in p-Pb collisions at similar centre-of-mass energies. Within the uncertainties, the deuteron yield in pp collisions resembles the one in p-Pb interactions, suggesting a common formation mechanism behind the production of light nuclei in hadronic interactions. In this context the measurements are compared with the expectations of coalescence and Statistical Hadronisation Models (SHM).
We make predictions for the kaon interferometry measurements in Au+Au collisions at the Relativistic Heavy Ion Collider (RHIC). A first order phase transition from a thermalized Quark-Gluon-Plasma (QGP) to a gas of hadrons is assumed for the transport calculations. The fraction of kaons that are directly emitted from the phase boundary is considerably enhanced at large transverse momenta K T ~ 1 GeV/c. In this kinematic region, the sensitivity of the R out/R side ratio to the QGP-properties is enlarged. Here, the results of the 1-dimensional correlation analysis are presented. The extracted interferometry radii, depending on K-Theta, are not unusually large and are strongly affected by momentum resolution effects.
The production of the hypertriton nuclei 3ΛH and 3Λ¯H¯¯¯¯ has been measured for the first time in Pb-Pb collisions at sNN−−−√ = 2.76 TeV with the ALICE experiment at LHC energies. The total yield, dN/dy ×B.R.(3ΛH→3He,π−)=(3.86±0.77(stat.)±0.68(syst.))×10−5 in the 0-10% most central collisions, is consistent with the predictions from a statistical thermal model using the same temperature as for the light hadrons. The coalescence parameter B3 shows a dependence on the transverse momentum, similar to the B2 of deuterons and the B3 of 3He nuclei. The ratio of yields S3 = 3ΛH/(3He ×Λ/p) was measured to be S3 = 0.60 ± 0.13 (stat.) ± 0.21 (syst.) in 0-10% centrality events; this value is compared to different theoretical models. The measured S3 is fully compatible with thermal model predictions. The measured 3ΛH lifetime, τ=181+54−39(stat.)±33(syst.) ps is compatible within 1σ with the world average value.
The production of the hypertriton nuclei 3ΛH and 3Λ¯H¯¯¯¯ has been measured for the first time in Pb-Pb collisions at sNN−−−√ = 2.76 TeV with the ALICE experiment at LHC energies. The total yield, dN/dy ×B.R.(3ΛH→3He,π−)=(3.86±0.77(stat.)±0.68(syst.))×10−5 in the 0-10% most central collisions, is consistent with the predictions from a statistical thermal model using the same temperature as for the light hadrons. The coalescence parameter B3 shows a dependence on the transverse momentum, similar to the B2 of deuterons and the B3 of 3He nuclei. The ratio of yields S3 = 3ΛH/(3He ×Λ/p) was measured to be S3 = 0.60 ± 0.13 (stat.) ± 0.21 (syst.) in 0-10% centrality events; this value is compared to different theoretical models. The measured S3 is fully compatible with thermal model predictions. The measured 3ΛH lifetime, τ=181+54−39(stat.)±33(syst.) ps is compatible within 1σ with the world average value.
An improved value for the lifetime of the (anti-)hypertriton has been obtained using the data sample of Pb-Pb collisions at sNN−−−√= 5.02 TeV collected by the ALICE experiment at the LHC. The (anti-)hypertriton has been reconstructed via its charged two-body mesonic decay channel and the lifetime has been determined from an exponential fit to the dN/d(ct) spectrum. The measured value, τ = 242+34−38 (stat.) ± 17 (syst.) ps, is compatible with all the available theoretical predictions, thus contributing to the solution of the longstanding hypertriton lifetime puzzle.
An improved value for the lifetime of the (anti-)hypertriton has been obtained using the data sample of Pb-Pb collisions at sNN−−−√= 5.02 TeV collected by the ALICE experiment at the LHC. The (anti-)hypertriton has been reconstructed via its charged two-body mesonic decay channel and the lifetime has been determined from an exponential fit to the dN/d(ct) spectrum. The measured value, τ = 242+34−38 (stat.) ± 17 (syst.) ps, is compatible with all the available theoretical predictions, thus contributing to the solution of the longstanding hypertriton lifetime puzzle.
According to the inflationary theory of cosmology, most elementary particles in the current universe were created during a period of reheating after inflation. In this work we self-consistently couple the Einstein-inflaton equations to a strongly coupled quantum field theory (QFT) as described by holography. We show that this leads to an inflating universe, a reheating phase and finally a universe dominated by the QFT in thermal equilibrium.