14 research outputs found
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Neutrino interactions in the deuterium-neon 14 foot double bubble chamber
We propose to study the interactions of high energy neutrinos in the 14 foot bubble chamber. The target chamber to be filled with Deuterium and the surrounding region filled with nearly pure Neon. An exposure of one million pictures is requested, in order to map out the s and t dependences of the basic interaction in which neutrinos participate
Large expert-curated database for benchmarking document similarity detection in biomedical literature search
Document recommendation systems for locating relevant literature have mostly relied on methods developed a decade ago. This is largely due to the lack of a large offline gold-standard benchmark of relevant documents that cover a variety of research fields such that newly developed literature search techniques can be compared, improved and translated into practice. To overcome this bottleneck, we have established the RElevant LIterature SearcH consortium consisting of more than 1500 scientists from 84 countries, who have collectively annotated the relevance of over 180 000 PubMed-listed articles with regard to their respective seed (input) article/s. The majority of annotations were contributed by highly experienced, original authors of the seed articles. The collected data cover 76% of all unique PubMed Medical Subject Headings descriptors. No systematic biases were observed across different experience levels, research fields or time spent on annotations. More importantly, annotations of the same document pairs contributed by different scientists were highly concordant. We further show that the three representative baseline methods used to generate recommended articles for evaluation (Okapi Best Matching 25, Term Frequency-Inverse Document Frequency and PubMed Related Articles) had similar overall performances. Additionally, we found that these methods each tend to produce distinct collections of recommended articles, suggesting that a hybrid method may be required to completely capture all relevant articles. The established database server located at https://relishdb.ict.griffith.edu.au is freely available for the downloading of annotation data and the blind testing of new methods. We expect that this benchmark will be useful for stimulating the development of new powerful techniques for title and title/abstract-based search engines for relevant articles in biomedical research.Peer reviewe
Partial wave analysis of the () system through the region of the A meson
A recent spin parity analysis of the ( pi /sup +/ pi /sup +/ pi /sup -/) system formed opposite a proton and a coherent deuteron by incident 13 MeV/c/sup 2/ pi /sup +/ mesons, is extended to a three pion mass of 1.9 GeV/c. Relative proportions of the contributing partial waves are presented, ffrom threshold, and the A/sub 3/ region is discussed in detail. Contrary to results with the (3 pi )/ sup -/ system, a change in phase is noted for the 2/sup -/ amplitade decaying to f/sup o/ pi /sup +/ via an S-wave. The method employs the University of Illinois three body partial wave analysis program. (auth
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Production of KK and p anti-p Pairs in Four-Body Reactions at 13.1 GeV/C
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