3,127 research outputs found

    A preliminary analysis of eta' -> eta pi pi in chiral theories

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    Preliminary results for the Dalitz plot distribution of η′→ηππ\eta^\prime\to\eta\pi\pi decays in the frameworks of Large-NcN_c Chiral Perturbation Theory and Resonance Chiral Theory are given. We hope our results to be of some relevance for the present and forthcoming analysis of these decays at GAMS, CLEO, VES, KLOE-2, Crystal Ball, Crystal Barrel, WASA, and BES-III.Comment: 5 pages, uses aipproc style. Talk presented at the XIII International Conference on Hadron Spectroscopy (HADRON09), Florida State University (Tallahassee), USA, 29.11-4.12.200

    The syntax of small clause predication

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    In this paper I put forward and justify a syntactic configuration that I call Complex Small Clause-structure. I show that this single syntactic structure can explain both the semantic value and the syntactic behavior of a range of constructions that up to now have been explored separately and, hence, proposed divergent analyses among them

    The octet rule in chemical space: Generating virtual molecules

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    We present a generator of virtual molecules that selects valid chemistry on the basis of the octet rule. Also, we introduce a mesomer group key that allows a fast detection of duplicates in the generated structures. Compared to existing approaches, our model is simpler and faster, generates new chemistry and avoids invalid chemistry. Its versatility is illustrated by the correct generation of molecules containing third-row elements and a surprisingly adept handling of complex boron chemistry. Without any empirical parameters, our model is designed to be valid also in unexplored regions of chemical space. One first unexpected finding is the high prevalence of dipolar structures among generated molecules.Comment: 24 pages, 10 figure
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