A5103240546- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle physics theoretical and experimental studies
- Laser-Plasma Interactions and Diagnostics
- Photonic and Optical Devices
- Pulsed Power Technology Applications
- Integrated Circuits and Semiconductor Failure Analysis
- Radiation Detection and Scintillator Technologies
- Nuclear Physics and Applications
- Advanced Photonic Communication Systems
- Particle Detector Development and Performance
- Advanced Optical Sensing Technologies
- Nuclear physics research studies
- Nuclear reactor physics and engineering
- Semiconductor Lasers and Optical Devices
- X-ray Spectroscopy and Fluorescence Analysis
- Inorganic and Organometallic Chemistry
- Gyrotron and Vacuum Electronics Research
- Particle accelerators and beam dynamics
- Optical Network Technologies
- Radiation Therapy and Dosimetry
- Fusion materials and technologies
- Force Microscopy Techniques and Applications
- Magneto-Optical Properties and Applications
- Electrohydrodynamics and Fluid Dynamics
Nanjing University of Posts and Telecommunications
2023
United Microelectronics (Taiwan)
2017-2021
Stony Brook University
2005
University of California, Riverside
1995-2004
Kaman (United States)
1989
Sandia National Laboratories
1980-1987
Sandia National Laboratories California
1977-1986
University of Missouri
1970
University of Northern Iowa
1968
Identified ${\ensuremath{\pi}}^{+/\ensuremath{-}}$, ${K}^{+/\ensuremath{-}}$, $p$, and $\overline{p}$ transverse momentum spectra at midrapidity in $\sqrt{{s}_{\mathrm{NN}}}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}130\phantom{\rule{0ex}{0ex}}\mathrm{GeV}\phantom{\rule{0ex}{0ex}}\mathrm{Au}+\mathrm{Au}$ collisions were measured by the PHENIX experiment RHIC as a function of collision centrality. Average momenta increase with number participating nucleons similar way for all particle...
Two-particle azimuthal correlation functions are presented for charged hadrons produced in Au+Au collisions at the Relativistic Heavy Ion Collider (sqrt [s(NN)]=130 GeV). The measurements permit determination of elliptic flow without event-by-event estimation reaction plane. extracted values (v2) show significant sensitivity to both collision centrality and transverse momenta emitted hadrons, suggesting rapid thermalization relatively strong velocity fields. When scaled by eccentricity zone...
Transverse momentum spectra and yields of hadrons are measured by the PHENIX collaboration in $\text{Au}+\text{Au}$ collisions at $\sqrt{{s}_{NN}}=130\phantom{\rule{0.3em}{0ex}}\text{GeV}$ Relativistic Heavy Ion Collider. The time-of-flight resolution allows identification pions to transverse momenta $2\phantom{\rule{0.3em}{0ex}}\text{GeV}∕c$ protons antiprotons $4\phantom{\rule{0.3em}{0ex}}\text{GeV}∕c$. yield rises approximately linearly with number nucleons participating collision, while...
Semi-inclusive proton and pion distributions from central Au+Au reactions at 11.6A GeV/c have been measured. The rapidity distribution shows significantly increased stopping compared to lighter systems, providing strong evidence for the formation of a state matter with baryon density substantially greater than normal nuclear matter. Unlike this energy induced by heavy ions, low mt−m0 invariant spectra deviate single exponential shape become flatter, while π− are found rise faster π+...
The first measurement of energy produced transverse to the beam direction at Relativistic Heavy-Ion Collider Brookhaven National Laboratory is presented. midrapidity density per participating nucleon rises steadily with number participants, closely paralleling rise in charged-particle density, such that <E(T)>/<N(ch)> remains relatively constant as a function centrality. calculated via Bjorken's prescription for 2% most central Au+Au collisions square root[s(NN)] = 130 GeV least epsilon(Bj)...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTKinetics of Aquation Aquopentachloroiridate(III) and Chloride Anation Diaquotetrachloroiridate(III) AnionsJames C. Chang Clifford S. GarnerCite this: Inorg. Chem. 1965, 4, 2, 209–215Publication Date (Print):February 1, 1965Publication History Published online1 May 2002Published inissue 1 February 1965https://pubs.acs.org/doi/10.1021/ic50024a018https://doi.org/10.1021/ic50024a018research-articleACS PublicationsRequest reuse permissionsArticle...
Proton and deuteron distributions from $11.6A \mathrm{GeV}/c$ Au + collisions measured by the E802 Collaboration in experiment E-866 are presented. The invariant yield of protons deuterons is studied as a function transverse mass for different cuts rapidity centrality. At low ${m}_{t}\ensuremath{-}{m}_{0}$ proton spectra deviate single exponential shape. average ${m}_{t}$ centrality used to explore effect collective flow reaction. ratio squared momentum, rapidity, probe coalescence model...
An excitation function of proton rapidity distributions for different centralities is reported from AGS Experiment E917 $\mathrm{Au}+\mathrm{Au}$ collisions at 6, 8, and 10.8 GeV/nucleon. The peripheral have a valley midrapidity which smoothly change to that display broad peak central collisions. mean loss increases with increasing beam energy, whereas the fraction protons consistent isotropic emission stationary source decreases energy. data suggest stopping substantially less than complete...
A systematic study of the spectra and yields ${K}^{+}$ ${K}^{\ensuremath{-}}$ is reported by experiment E866 as a function centrality in Au+Au collisions at $11.6A \mathrm{GeV}/c.$ The invariant transverse for both kaon species are well described exponentials ${m}_{t},$ with inverse slope parameters that largest midrapidity which increase centrality. slopes slightly larger than spectra. rapidity density peaks distribution wider ${K}^{\ensuremath{-}}.$ integrated total nonlinearly steadily...
Charged kaon production has been measured in Si+Al and Si+Au collisions at 14.6 A GeV/c, Au+Au 11.1 GeV/c by Experiments 859 866 (the E--802 Collaboration) the BNL AGS. Invariant transverse mass spectra rapidity distributions for both K+ K- are presented. The centrality dependence of rapidity-integrated yields is studied. Strangeness enhancement observed as an increase slope yield with total number participants well per participant. starts peripheral (relative to N+N) appears saturate a...
We report on a measurement of ϕ-meson production in Au+Au collisions at beam momentum 11.7AGeV∕c by experiment 917 the alternating gradient synchroton. The covers midrapidity region 1.2<y<1.6. Transverse-mass spectra and rapidity distributions are presented as functions centrality characterized number participant projectile nucleons. yield ϕ’s per nucleon increases strongly central manner similar to that observed for kaons.7 MoreReceived 21 April...
In this paper Au+Au collisions at 11.6A GeV/c are characterized by two global observables: the energy measured near zero degrees (EZCAL) and total event multiplicity. Particle spectra for different classes that defined in a two-dimensional grid of both observables. For moderately central events (σ/σint<12%) proton dN/dy distributions do not depend on EZCAL but only contrast shape transverse shows little dependence The change suggests conditions formed collision classes. These studied signals...
We present results for antilambda and antiproton production in Au+Au collisions at 11.7 A GeV/c including spectra extracted invariant yields both species central peripheral the rapidity range 1.0<y<1.4. The yield increases from dN(Lambda;)/dy = 1.2(+0.7+0.2)(-0.6-0.2)x10(-3) to 19(+4+3)(-5-2)x10(-3) collisions. direct is deduced measured total extract ratio of antilambda-to-direct-antiproton production. Lambda/p near midrapidity 0.26(+0.19+0.5)(-0.15-0.4) 3.6(+4.7+2.7)(-1.8-1.1) collisions,...
Antiproton production in $11.7A\mathrm{GeV}/c$ $\mathrm{Au}+\mathrm{Au}$ collisions over a wide transverse-mass coverage was studied using the AGS-E866 experimental apparatus. The mean transverse kinetic energy increases as function of centrality and is similar to that protons. antiproton yields $\mathrm{Si}+\mathrm{Al}$, $\mathrm{Si}+\mathrm{Au}$, are consistent with scaling 0.7 power number participant nucleons.
Two-pion correlation functions are analyzed at mid-rapidity for three systems (14.6 A-GeV Si+Al, Si+Au, and 11.6 Au+Au), seven distinct centrality conditions, different kT bins in the range 0.1--0.5 GeV/c. Source reference frames determined from fits to Yano-Koonin source parameterization. Bertsch-Pratt radius parameters shown scale linearly with both number of projectile total participants as obtained a Glauber model calculation. A finite emission duration that increases system/centrality...
Transverse mass spectra of protons emitted in Au+Au collisions at beam energies 6, 8, and 10.8 GeV/nucleon have been measured as a function collision centrality over rapidity range 0.5<ylab<1.5. The are well reproduced by Boltzmann distributions the transverse region, which allows for extrapolation data to derive density apparent temperature emitting source. shapes suggest significant transparency or substantial longitudinal expansion even most central all three energies. analyzed within...
Collisions of Au + have been studied at beam kinetic energies 6.0, 8.0 and 10.8 GeV/nucleon the AGS facility Brookhaven National Laboratory. Particles emitted from collisions were momentum analysed identified in a magnetic spectrometer. Proton rapidity distributions are compared with those expected for isotropic emission stopped source it is concluded that there substantial amount transparency all three even most central collisions. Strangeness production via measurements K, ϕ spectra. All...
We have measured both the current response and pulse of a microchannel plate, MCP, to X-rays incident at an angle 45° in energy range 8 100 keV. The X-ray detection efficiency, height distributions, sensitive depth MCP were determined from these data. find that efficiency extrapolates zero below keV, ranges between values 1% 2.6% above this energy, much higher than anticipated previous measurements for oblique incidence 6 When compared energies, we conclude MCP's relatively constant 10 600...