122598679
Measurement of the polarization parameter in K$sup +$p elastic scattering
Full angular distributions of the polarization parameter in elastic ${K}^{+}p$ scattering at 1.37, 1.45, 1.60, 1.71, 1.80, 1.89, 2.11, and 2.31 GeV/c are presented. These data were obtained in an experiment at the Zero Gradient Synchrotron using a polarized proton target with arrays of scintillation and \ifmmode \check{C}\else \v{C}\fi{}erenkov counters to detect the scattered particles.
117056598
Search for Penetrating Massive Neutral Particles Produced in High Energy Proton Collisions
122067625
Quasielastic charmed-baryon production and exclusive strange-particle production by high-energy neutrinos
Three charmed-baryon candidates produced in the quasielastic reaction ..nu..n..--> mu../sup -/..lambda../sub c//sup +/..--> mu../sup -/..lambda pi../sup +/ were found in an exposure of the Fermilab deuterium-filled 15-ft bubble chamber to a wide-band neutrino beam. We also found that the cross section of the associated-production reaction ..nu..n..--> mu../sup -/..lambda..K/sup +/ is (5.5 +- 1.3 +- 1.1) x 10/sup -40/ cm/sup 2/ for E/sub ..nu../>10 GeV, and is approximately independent of energy. In addition we studied the cross sections of some quasi-two-body associated strange-particle production reactions other than ..mu../sup -/..lambda..K/sup +/.
120606050
Monte Carlo simulation of a gas-sampled hadron calorimeter
Abstract A prototype of the OPAL barrel hadron calorimeter, which is a gas-sampled calorimeter using plastic streamer tubes, was exposed to pions at energies between 1 and 7 GeV. The response of the detector was simulated using the CERN GEANT3 Monte Carlo program. By using the observed high energy muon signals to deduce details of the streamer formation, the Monte Carlo program was able to reproduce the observed calorimeter response. The behavior of the hadron calorimeter when placed behind a lead glass electromagnetic calorimeter was also investigated.
17733368
Global observables at RHIC
The first three measurements from the RHIC program were results on global observables: charged particle multiplicity (N_ch), transverse energy (E_T) and elliptic flow (v_2). They offer a look at the large-scale features of particle production in high-energy nuclear collisions, with particular insight into entropy production and collective behavior. Results from all of the RHIC experiments are discussed in light of data from lower energy nuclear collisions as well as from high-energy hadronic collisions to test our current understanding of the collision dynamics.
118873547
Universal behavior of charged particle production in heavy Ion collisions
The PHOBOS experiment at RHIC has measured the multiplicity of primary charged particles as a function of centrality and pseudorapidity in Au+Au collisions at sqrt(s_NN) = 19.6, 130 and 200 GeV. Two kinds of universal behavior are observed in charged particle production in heavy ion collisions. The first is that forward particle production, over a range of energies, follows a universal limiting curve with a non-trivial centrality dependence. The second arises from comparisons with pp/pbar-p and e+e- data. N_tot/(N_part/2) in nuclear collisions at high energy scales with sqrt(s) in a similar way as N_tot in e+e- collisions and has a very weak centrality dependence. This feature may be related to a reduction in the leading particle effect due to the multiple collisions suffered per participant in heavy ion collisions.
14230369
Systematics of Charged Particle Production in Heavy-Ion Collisions with the PHOBOS Detector at RHIC
The multiplicity of charged particles produced in Au+Au collisions as a function of energy, centrality, rapidity and azimuthal angle has been measured with the PHOBOS detector at RHIC. These results contribute to our understanding of the initial state of heavy ion collisions and provide a means to compare basic features of particle production in nuclear collisions with more elementary systems.
122130937
Global observables in heavy-ion collisions at the LHC with the ATLAS detector
The capabilities of the ATLAS detector at the LHC for measuring 'global' in Pb+Pb collisions at √s NN = 5520 GeV are described, including inclusive charged multiplicity, charged hadron spectra, transverse energy and elliptic flow.