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AbstractAbstract
[en] Using Brillouin scattering, we have determined the complete set of elastic constants of the technologically important β-Si3N4. Availability of single crystals has allowed us to measure all five independent cij, which (in units of GPa) are: c11=433(3), c33=574(3), c13=127(5), c44=108(2), c66=119(4), and c12=c11-2c66=195(8), giving a bulk modulus of 259. Our values are compared with existing calculations and cij determined from nano-indentation results combined with empirical relations and trends in related materials. (c) 2000 American Institute of Physics
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Journal Article
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Numerical Data
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AbstractAbstract
[en] The equation of state for cold nuclear matter is determined by the effective, density-dependent interaction between bound nucleons at temperature T=0. This interaction can be probed in elastic nucleus-nucleus collisions at various density overlaps which may extend to several times the normal matter density. For this purpose the elastic scattering of 16O ions on 16O has been measured at incident energies from 250 to 1120 MeV with high accuracy. From these data, which sample both diffractive and refractive scattering processes, was extracted the underlying scattering potentials utilizing model-unrestricted analysis methods. These potentials fit very well into the systematics found in light-ion scattering and compare very favorably with microscopic calculations, if these are based on a weak density dependence of the effective NN interaction, resulting in a soft equation of state for cold nuclear matter
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16. nuclear physics divisional conference on the structure of nuclei under extreme conditions, SNEC 98; Padua (Italy); 31 Mar - 4 Apr 1998
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Journal Article
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Pang, C.Y.
Illinois Univ., Urbana (USA)1976
Illinois Univ., Urbana (USA)1976
AbstractAbstract
[en] The reaction νp → νp has been observed in an experiment conducted at the Brookhaven AGS. Experimental details and a comparison with quasi-elastic neutrino scattering are presented
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1976; 8 p; Available from NTIS. $3.50.
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Report
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BARYONS, CATIONS, CHARGED PARTICLES, ELEMENTARY PARTICLES, FERMIONS, HADRONS, HYDROGEN IONS, HYDROGEN IONS 1 PLUS, INTERACTIONS, IONS, LEPTON-BARYON INTERACTIONS, LEPTON-HADRON INTERACTIONS, LEPTON-NUCLEON INTERACTIONS, NEUTRINO-NUCLEON INTERACTIONS, NUCLEAR REACTIONS, NUCLEONS, PARTICLE INTERACTIONS, SCATTERING
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AbstractAbstract
[en] The symbolic conventions for spin paramters in high energy scattering experiments are set forth for elastic and pseudo-elastic scattering, one-particle inclusive reactions, and for total cross section measurements
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Symbols
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Workshop on polarized proton beams; Ann Arbor, MI, USA; 18 - 27 Oct 1977; CONF-7710115--
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Journal Article
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Conference
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AIP (Am. Inst. Phys.) Conf. Proc; (no.42); p. 147-157
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AbstractAbstract
[en] A study is made of deuteron-nucleus elastic and quasi-elastic scattering and the connection between the opaque nucleus model and the Glauber model is pointed out. The contributions to different cross-sections of the collisions in which the nucleus, excited by one of the nucleons of the deuteron, is brought back to the ground state by the other nucleon is analysed. Coherent deuteron disintegration is found to be highly improbable when the target nucleus is heavy and incoherent disintegration accounts for nearly all the deuteron disintegration. Thus a correct comparison between theoretical and experimental data on proton stripping must take the incoherent deuteron disintegration into consideration
Original Title
Opaque nucleus model
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Journal Article
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Ghana Journal of Science; v. 14(1); p. 93-124
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AbstractAbstract
[en] Quasielastic neutron scattering from droplet microemulsions is considered. Independent spherical fluid droplets are immersed in another fluid, the bulk fluids being separated by a surface layer fluctuating in shape. As distinct from the previous theories, the intermediate scattering function is calculated assuming small but nonzero thickness of the interface. The three components of the system are characterized by different scattering length densities. Consequently, the theory is applicable also for the scattering on emulsions containing large droplets with negligible thickness of the layer. With the aim to determine the Helfrich's elasticity characteristics of the surface layer, we apply the obtained formulas to describe the neutron spin-echo scattering experiments on microemulsions in which the droplet shape fluctuations have been detected. A quantitative agreement with the experiments can be reached only if the values of bending elasticity coefficient κ are smaller (in some cases significantly) than those determined in previous works. We conclude that the coefficients κ extracted so far from the neutron scattering experiments are not reliable and the theoretical description of these experiments should be essentially improved. (author)
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2 figs., 27 refs.
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Journal Article
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Czechoslovak Journal of Physics; ISSN 0011-4626;
; v. 50(2); p. 239-250

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AbstractAbstract
[en] The multipole scattering coefficients for elastic wave scattering from a spherical inhomogeneity in a fluid-saturated porous medium have been calculated. These coefficients may be used to obtain estimates of the effective macroscopic constants for long-wavelength propagation of elastic waves through partially saturated media. If the volume average of the single scattering from spherical bubbles of gas and liquid is required to vanish, the resulting equations determine the effective bulk modulus, density, and viscosity of the multiphase fluid filling the pores. The formula for the effective viscosity during compressional wave excitation is apparently new
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Journal Article
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Applied Physics Letters; ISSN 0003-6951;
; v. 46(8); p. 722-724

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Paley, J.; Djurcic, Z.; Harris, D.; Tesarek, R.; Feldman, G.; Corwin, L.; Messier, M.D.; Mayer, N.; Musser, J.; Paley, J.; Tayloe, R.
Fermi National Accelerator Laboratory, Batavia, IL (United States). Funding organisation: US Department of Energy (United States)2010
Fermi National Accelerator Laboratory, Batavia, IL (United States). Funding organisation: US Department of Energy (United States)2010
AbstractAbstract
[en] We propose to construct and deploy a fine-grained detector in the Fermilab NOvA 2 GeV narrow-band neutrino beam. In this beam, the detector can make unique contributions to the measurement of quasi-elastic scattering, neutral-current elastic scattering, neutral-current π0 production, and enhance the NOvA measurements of electron neutrino appearance. To minimize cost and risks, the proposed detector is a copy of the SciBar detector originally built for the K2K long baseline experiment and used recently in the SciBooNE experiment.
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15 Oct 2010; 35 p; AC02-76CH03000; Available from http://lss.fnal.gov/cgi-bin/find_paper.pl?proposal-1003.pdf; PURL: https://www.osti.gov/servlets/purl/992652-nsyNv2/; doi 10.2172/992652
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AbstractAbstract
[en] The detection of multinucleon transfer channels populated with very low cross-sections allow to study into detail phenomena that are important for a wide class of experiments. Some of the results recently obtained at LNL with the time-of-flight magnetic spectrometer PISOLO are discussed. A comparison between the data and the microscopic calculations performed with the new theoretical model developed by the Copenhagen group are presented
Primary Subject
Source
16. nuclear physics divisional conference on the structure of nuclei under extreme conditions, SNEC 98; Padua (Italy); 31 Mar - 4 Apr 1998
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Journal Article
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Conference
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AbstractAbstract
No abstract available
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1998; [vp.]; Available from British Library Document Supply Centre- DSC:DXN019852; Thesis (Ph.D.)
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Miscellaneous
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Thesis/Dissertation
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