A5103147821- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle physics theoretical and experimental studies
- Rock Mechanics and Modeling
- Nuclear Physics and Applications
- Tunneling and Rock Mechanics
- Drilling and Well Engineering
- Nuclear physics research studies
- Nuclear reactor physics and engineering
- Atomic and Subatomic Physics Research
- Geophysical Methods and Applications
- Graphite, nuclear technology, radiation studies
- Geotechnical and Geomechanical Engineering
- Particle Detector Development and Performance
- Chemical Reactions and Isotopes
- Landslides and related hazards
- Particle accelerators and beam dynamics
- Quantum, superfluid, helium dynamics
- Superconducting Materials and Applications
- Image Processing and 3D Reconstruction
- Geotechnical Engineering and Analysis
- Nuclear and radioactivity studies
- Geological Formations and Processes Exploration
- Fossil Insects in Amber
- Geodetic Measurements and Engineering Structures
Budapest University of Technology and Economics
2002-2023
Eötvös Loránd University
1991-2014
Pázmány Péter Catholic University
2014
Instituto Venezolano de Investigaciones Científicas
2001
Hungarian Academy of Sciences
1974-1983
Transverse momentum spectra of charged hadrons with p(T)<8 GeV/c and neutral pions p(T)<10 have been measured at midrapidity by the PHENIX experiment BNL RHIC in d+Au collisions sqrt[s(NN)]=200 GeV. The yields are compared to those p+p same sqrt[s(NN)] scaled up number underlying nucleon-nucleon d+Au. yield ratio does not show suppression observed central Au+Au RHIC. Instead, there is a small enhancement high particles.
The dependence of transverse momentum spectra neutral pions and $\ensuremath{\eta}$ mesons with ${p}_{T}<16\text{ }\text{ }\mathrm{GeV}/c$ ${p}_{T}<12\text{ }\mathrm{GeV}/c$, respectively, on the centrality collision has been measured at midrapidity by PHENIX experiment BNL Relativistic Heavy Ion Collider (RHIC) in $d+\mathrm{Au}$ collisions $\sqrt{{s}_{NN}}=200\text{ }\mathrm{GeV}$. yields are compared to those $p+p$ same $\sqrt{{s}_{NN}}$ scaled number underlying nucleon-nucleon...
$J/\ensuremath{\psi}$ production in $d+\mathrm{Au}$ and $p+p$ collisions at $\sqrt{{s}_{NN}}=200\text{ }\text{ }\mathrm{GeV}$ has been measured by the PHENIX experiment rapidities $\ensuremath{-}2.2<y<+2.4$. The cross sections nuclear dependence of versus rapidity, transverse momentum, centrality are obtained compared to lower energy $p+A$ results theoretical models. observed is found be modest, suggesting that absorption final state weak shadowing gluon distributions small consistent with...
Measurements of the midrapidity transverse energy distribution, $d\Et/d\eta$, are presented for $p$$+$$p$, $d$$+$Au, and Au$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV additionally $\sqrt{s_{_{NN}}}=62.4$ 130 GeV. The $d\Et/d\eta$ distributions first compared with number nucleon participants $N_{\rm part}$, binary coll}$, constituent-quark $N_{qp}$ calculated from a Glauber model based on nuclear geometry. For Au$+$Au, $\mean{d\Et/d\eta}/N_{\rm part}$ increases while...
Inclusive transverse momentum spectra of \ensuremath{\eta} mesons in the range ${p}_{T}\ensuremath{\approx}2$--12 GeV/$c$ have been measured at midrapidity ($|\ensuremath{\eta}|<0.35$) by PHENIX experiment RHIC $p+p,d$+Au, and Au+Au collisions $\sqrt{{s}_{\mathit{NN}}}=200$ GeV. The are reconstructed through their $\ensuremath{\eta}\ensuremath{\rightarrow}\ensuremath{\gamma} \ensuremath{\gamma}$ channel for three colliding systems as well...
A comprehensive survey of event-by-event fluctuations charged hadron multiplicity in relativistic heavy ions is presented. The covers Au+Au collisions at sqrt(s_NN) = 62.4 and 200 GeV, Cu+Cu 22.5, 62.4, GeV. Fluctuations are measured as a function collision centrality, transverse momentum range, charge sign. After correcting for non-dynamical due to the geometry within centrality bin, remaining dynamical expressed variance normalized by mean tend decrease with increasing centrality....
We report on charged hadron production in deuteron-gold reactions at sqrt[s(NN)]=200 GeV. Our measurements the deuteron direction cover 1.4<eta<2.2, referred to as forward rapidity, and gold -2.0<eta<-1.4, backward a transverse momentum range p(T)=0.5-4.0 GeV/c. compare relative yields for different collision centrality classes. observe suppression binary scaling sensitive low fraction (x) partons nucleus, an enhancement high nucleus.
Two particle correlations between identified meson and baryon trigger particles with $2.5<{p}_{T}<4.0\phantom{\rule{0.3em}{0ex}}\mathrm{GeV}/c$ lower ${p}_{T}$ charged hadrons have been measured at midrapidity by the PHENIX experiment RHIC in $p+p,d+\mathrm{Au}$, $\mathrm{Au}+\mathrm{Au}$ collisions $\sqrt{{s}_{\mathit{NN}}}=200\phantom{\rule{0.3em}{0ex}}\mathrm{GeV}$. In noncentral collisions, probability of finding a hadron near azimuthal angle to is almost identical for mesons...
We present azimuthal angle correlations of intermediate transverse momentum () hadrons from dijets in and collisions at 200 GeV. The away-side dijet induced correlation is broadened, non-Gaussian, peaked away central semicentral all the systems. broadening peak location are found to depend upon number participants collision, but not on collision energy or beam nuclei. These results consistent with sound shock wave models, pose challenges Cherenkov gluon radiation models.
Dihadron correlations at high transverse momentum in d+Au collisions sqrt(s_NN) = 200 GeV midrapidity are measured by the PHENIX experiment Relativistic Heavy Ion Collider (RHIC). From these we extract several structural characteristics of jets; root-mean-squared (RMS) fragmenting hadrons with respect to jet sqrt(<j_T^2>), mean sine-squared angle between scattered partons <sin^2(phi_jj)>, and number particles produced within dijet that associated a high-p_T particle (dN/dx_E distributions)....
We present a measurement of the double longitudinal spin asymmetry in inclusive ${\ensuremath{\pi}}^{0}$ production polarized proton-proton collisions at $\sqrt{s}=200\text{ }\text{ }\mathrm{G}\mathrm{e}\mathrm{V}$. The data were taken Relativistic Heavy Ion Collider with average beam polarizations 0.27. measurements are first program to study structure proton, using strongly interacting probes, collider energies. is presented for transverse momenta $1--5\text{...
We present an improved measurement of the double helicity asymmetry for ${\ensuremath{\pi}}^{0}$ production in polarized proton-proton scattering at $\sqrt{s}=200\text{ }\text{ }\mathrm{GeV}$ employing PHENIX detector Relativistic Heavy Ion Collider (RHIC). The improvements to our previous come from two main factors: Inclusion a new data set 2004 RHIC run with higher beam polarizations than earlier and recalibration polarization measurements run, which resulted reduced uncertainties...
We present transverse momentum (${p}_{T}$) spectra of charged hadrons measured in deuteron-gold and nucleon-gold collisions at $\sqrt{{s}_{{}_{\mathit{NN}}}}=200$ GeV for four centrality classes. Nucleon-gold were selected by tagging events which a spectator nucleon was observed one two forward rapidity detectors. The yields investigated as function the number binary nucleon-nucleon collisions, \ensuremath{\nu}, suffered deuteron nucleons. A comparison particle to those $p+p$ show that yield...
The PHENIX experiment at RHIC has measured the invariant cross section for \ensuremath{\omega}-meson production midrapidity in transverse momentum range $2.5<{p}_{T}<9.25$ GeV/$c$ $p+p$ and $d$+Au collisions $\sqrt{{s}_{\mathit{NN}}}=200$ GeV. Measurements two decay channels ($\ensuremath{\omega}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{0}{\ensuremath{\pi}}^{+}{\ensuremath{\pi}}^{\ensuremath{-}}$ $\ensuremath{\omega}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{0}\ensuremath{\gamma}$)...
Deuteron-gold (d+Au) collisions at the Relativistic Heavy Ion Collider provide ideal platforms for testing QCD theories in dense nuclear matter high energy. In particular, models suggesting strong saturation effects partons carrying small nucleon momentum fraction (x) predict modifications to jet production forward rapidity (deuteron-going direction) d+Au collisions. We report on two-particle azimuthal angle correlations between charged hadrons forward/backward (deuteron/gold going and...
The geologic, geotechnical and rock mechanical background of the area, which includes an underground cavern system, is very complex. Initially, to describe mass properties, RMR Q systems were used, while support system was based solely on system. Later, during construction repository chambers, GSI also introduced in addition above-mentioned classification methods. correlation usage these three different investigated.Special methods used obtain more accurate tunnel mapping documentation,...
It was more than hundred years ago, when Theodore von Kármán (born as Tódor Kármán) designed and developed the first triaxial cell for investigation of brittle rocks behavior. His research based on Carrara marble Mutenberg sandstone with varying confining pressures up to 600 MPa, demonstrating changes from stages ductile behavior in addition hardening. The target this paper is give tribute his development work topic, having inspired influenced many people rock engineering geophysical...