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[en] Experience in analyzing the data from Light and Heavy Ion Collisions in terms of distributions rather than moments suggests that conventional fluctuations of multiplicity and transverse energy can be well described by Gamma or Negative Binomial Distributions (NBD). Multiplicity distributions were obtained for central ¹⁶O+Cu collisions in bins of δη= 0.1,0.2, 0.3 .... 0.5,1.0, where the bin of 1.0 covers 1.2 < η < 2.2 in the laboratory. NBD fits were performed to these distributions with excellent results in all δη bins. The κ parameter of the NBD fit increases linearly with the δη interval, which is a totally unexpected and particularly striking result. Due to the well known property of the NBD under convolution, this result indicates that the multiplicity distributions in adjacent bins of pseudorapidity δη ∼ 0.1 are largely statistically independent. The relationship to 2-particle correlations and open-quotes Intermittencyclose quotes will be discussed

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[en] The first (e-->,e(prime),p-->) polarization transfer measurements on a nucleus heavier than deuterium have been carried out at Jefferson Laboratory. Transverse and longitudinal components of the polarization of protons ejected in the reaction ¹⁶O(e-->,e(prime),p-->) were measured in quasielastic perpendicular kinematics at a Q² of 0.8 (GeV/c)². The data are in good agreement with state of the art calculations

[en] An 'intermittency' analysis of charged particle multiplicity data from the target multiplicy array (TMA) in central collisions of ¹⁶O+Cu at 14.6 AxGeV/c has been published by the AGS-E802 collaboration. The centrality cut was made using the Zero degree Calorimeter and requiring that the forward energy be less than one projectile nucleon (i.e. T_ZCAL <13.6 GeV). In agreement with previous measurements, an apparent power-law growth of Normalized Factorial moments with decreasing pseudorapidity interval was observed in the range 1.0≥δη≥0.1. In the present work, multiplicity distributions in individual pseudorapidity bins are presented for the same data. These distributions are excellently fit by Negative Binomial Distributions (NBD) in all δη bins, allowing, for the first time, a systematic formulation of the subject of 'intermittency' in terms of distributions, rather than moments. In agreement with all previous measurements of NBD fits to multiplicity distributions in hadron and lepton reactions, the k parameter of the NBD fit for central ¹⁶O+Cu collisions is found to exhibit an apparently linear increase with the δη interval, albeit with a much steeper slope than for the other reactions, and a non-zero intercept, k(0)≠0. True intermittency, ξ→0, would occur if the intercept k(0)→0, which is not observed in any experiment. The correlation length for central ¹⁶O+Cu collisions, although smaller than expected, is quite finite and can be measured - which means that a length scale exists in these collisions and therefore there is no intermittency in the multiplicity fluctuations

[en] The elastic scattering of strongly absorbed particles near the Coulomb barrier is sensitive to one size parameter, which is the distance at which the real nuclear potential has some fixed value, 0.2 MeV for α-particle, 1 MeV for ¹⁶O. This size parameter can be related in a simple way to the radial distance of the target nucleus where the density takes some given value, 2x10^-3 nucleon /fm³ for α-particle scattering and 5x10^-3 nucleon/fm³ for ¹⁶O scattering

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[en] Results of the experiments and their interpretation in respect to study of fusion reactions with heavy nuclei are discussed

[en] The two-body interaction which is used as an input, separability of t-matrix introduces considerable simplification in the sense that it reduces the dimensionality of the coupled integral equation from two to one in order to save the computing time. Hence the cross-section can be easily measured accurately for higher order square matrix