3,106 research outputs found

    Experimental status of deeply bound kaonic states in nuclei

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    We review recent claims of the existence of deeply bound kaonic states in nuclei. Also we study in details the (K-,p) reaction on C12 with 1 GeV/c momentum kaon beam, based on which a deep kaon nucleus optical potential was claimed in [1]. In our Monte Carlo simulation of this reaction we include not only the quasi-elastic K- p scattering, as in [1], but also K- absorption by one and two nucleons followed by the decay of the hyperon in pi N, which can also produce strength in the region of interest. The final state interactions in terms of multiple scattering of the K-, p and all other primary particles on their way out of the nucleus is also considered. We will show that all these additional mechanisms allow us to explain the observed spectrum with a "standard" shallow kaon nucleus optical potential obtained in chiral models. [1] T. Kishimoto et al., Prog. Theor. Phys. 118, 181 (2007).Comment: 5 pages, 3 figures. To be published in the Proceedings of the International Workshop on Chiral Symmetry in Hadrons and Nuclei (Chiral10), Valencia, Spain, June 21-24, 201

    Magnetic correlations in the S=5/2 quadratic lattice Heisenberg antiferromagnet Mn(HCOO)2・2(ND2)2CO

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    The magnetic correlations in the quadratic lattice S=5/2 Heisenberg antiferromagnet Mn(HCOO)2⋅2(ND2)2CO (TN=3.77K) have been studied by means of specific heat and neutron-scattering experiments. With a universal temperature scale, the temperature behavior of both the magnetic heat capacity and spin correlations are quantitatively accounted for by the pure quantum self-consistent harmonic approximation by Cuccoli et al. for S=5/2

    Formation of Deeply Bound Kaonic Atoms in (K^-,N) Reactions

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    We study theoretically the (K^-,N) reactions for the formation of the deeply bound kaonic atoms, which were predicted to be quasi--stable with narrow widths, using the Green function method. We consider various cases with different target nuclei and energies systematically and find the clear signals in the theoretical spectra for all cases considered in this article. The signals show very interesting structures, such as the RESONANCEDIPRESONANCE DIP instead of the resonance peak. We discuss the origins of the interesting structures and possibilities to get new information on the existence of the kaonic nuclei from the spectra of the atomic state formations.Comment: 11 pages, 9 figure

    Unusual ocean-atmosphere conditions in the tropical Indian Ocean during 1994

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    The southeastern tropical Indian Ocean (SETIO) was characterized by unusually cold sea surface temperature (SST) and strong northwestward alongshore surface winds during 1994. Using multi-source data sets including ocean model simulation, two key processes are identified for the SETIO cooling. Entrainment cooling produced most of the negative SST anomaly near the coast whereas evaporative cooling dominated the process away from the coast. Convection was anomalously suppressed over SETIO and the divergence of moist air from the region helped the local evaporative process. This also led to anomalous moisture transports that explain the enhanced convection over the central equatorial Indian Ocean, India and East Asia. The positive feedback between the enhanced and suppressed convection regions in turn helped maintain the surface wind anomalies. These evidences clearly indicate the existence of an ocean-atmosphere coupled phenomenon in the Indian Ocean during 1994

    A Construction of Algebras with Large Global Dimensions

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    CH 600 History of Methodism

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    1999. -Norwood, Frederick A., The Story of American Methodism, Nashville: Abingdon Press, 1974. -Rowe, Kenneth E., United Methodist Studies: Basic Bibliographies, Third edition, Nashville: Abingdon Press, 1992. (Note: This book is for reference, future consolation on specific subjects, and use in your used book store browsings.)https://place.asburyseminary.edu/syllabi/3460/thumbnail.jp

    Public opinion on bioenergy - Eco-model cities' new strategies for reaching a low-carbon society in Japan

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    The purpose of this study was to contribute to filling the knowledge gap in public opinion and knowledge about forest and its certification in Japan, as well as to identify key elements and the possible role of public opinion within integrated bottom-up policies, bridging the sectors of forest, environment and energy. This article compares the public opinion of two rural towns in Japan, one of which is located in northern Hokkaido, whereas the other town is located on the southern Main Island Shikoku. Both municipalities had been identified as an optimal case study location and selected because of their early decision to pursue forest management certification and because both towns had been awarded the status of a Japanese "Eco-Model Cities" - to encourage the creation of low-carbon communities - in 2008 and 2009. In order to test the basic knowledge and information needs of the public, a questionnaire-based drop-off survey was conducted in early 2007 and mid 2009 respectively among all households of the two rural towns. The questionnaire was divided into 5 sections (general info, forest, forest management, bioenergy, and information needs) in each of which up to 15 questions were asked with main focus on forest certification and biomass for bio-energy. The answers were made on a 4/5 point scale, or in dichotomous-choice form and analyzed by using SPSS. Gaining better knowledge about what the public thinks regarding bioenergy and the environment is seen to be crucial for the design of future policies for integrating a range of discrete and sectoral approaches such as energy supply-demand measures, energy-efficient buildings, traffic measures, waste disposal measures and forest protection. Finally, this study describes and interprets differences and similarities in the public opinion of both Eco-Model Cities in Japan where bioenergy production and forest management certification plays an important role. Forest certification and bioenergy from forest were identified as key elements for future integrated bottom-up policies that need to concentrate on facilitating the linkage between forestry and renewable energy as well as on promoting environmentally sound management and forest certification
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