13 research outputs found

    M1 Resonances in Unstable Magic Nuclei

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    Within a microscopic approach which takes into account RPA configurations, the single-particle continuum and more complex 1p1h⊗phonon1p1h\otimes phonon configurations isoscalar and isovector M1 excitations for the unstable nuclei 56,78{56,78}Ni and 100,132{100,132}Sn are calculated. For comparison, the experimentally known M1 excitations in 40{40}Ca and 208^{208}Pb have also been calculated. In the latter nuclei good agreement in the centroid energy, the total transition strength and the resonance width is obtained. With the same parameters we predict the magnetic excitations for the unstable nuclei. The strength is sufficiently concentrated to be measurable in radioactive beam experiments. New features are found for the very neutron rich nucleus 78{78}Ni and the neutron deficient nucleus 100{100}Sn.Comment: 17 pages (LATEX), 12 figures (available from the authors), KFA-IKP(TH)-1993-0

    Shell-model Monte Carlo studies of fp-shell nuclei

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    We study the gross properties of even-even and N=ZN=Z nuclei with A=48−64A=48-64 using shell-model Monte Carlo methods. Our calculations account for all 0ℏω0 \hbar \omega configurations in the fpfp-shell and employ the modified Kuo-Brown interaction KB3. We find good agreement with data for masses and total B(E2)B(E2) strengths, the latter employing effective charges ep=1.35ee_p=1.35e and en=0.35ee_n=0.35e. The calculated total Gamow-Teller strengths agree consistently with the B(GT+)B(GT_+)-values deduced from (n,p)(n,p) data if the shell model results are renormalized by 0.640.64, as has already been established for sdsd-shell nuclei. The present calculations therefore suggest that this renormalization (i.e., gA=1g_A=1 in the nuclear medium) is universal.Comment: 20 pages, 7 figures, Caltech Preprint

    Media Studies 101 : A Creative Commons Textbook

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    Led by Erika Pearson with assistance from Bernard Madill (both from the University of Otago) and featuring contributors from Massey University, University of Canterbury and University of South Australia. "Inspired by similar projects around the world, and supported by funding from Creative Commons, the Media Text Hack Group sought to act as 'curators' of the vast array of information about media and communication, and drew together examples specific to the region ... This first release represents a core of work based on the common curricula of media and communication studies programs across the region. It is hoped that future versions will develop and expand these areas, as well as take advantage of new tools of collaboration and sharing. All are welcome to take, use, recycle and adapt the material under the Creative Commons Attribution licence"--Media release, 13 Feb. 2013Pt. 1. Reading media texts -- Pt. 2. Culture and contexts -- Pt. 3. Production and structures -- Pt. 4. Audiences & identity

    The Connection Between Art, Healing, and Public Health: A Review of Current Literature

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    This review explores the relationship between engagement with the creative arts and health outcomes, specifically the health effects of music engagement, visual arts therapy, movement-based creative expression, and expressive writing. Although there is evidence that art-based interventions are effective in reducing adverse physiological and psychological outcomes, the extent to which these interventions enhance health status is largely unknown. Our hope is to establish a foundation for continued investigation into this subject and to generate further interest in researching the complexities of engagement with the arts and health
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