Values of veteran Israelis and new immigrants from the former Soviet Union: a facet analysis

"Grounded on the formal faceted definition of values introduced by Levy & Guttman (1974), a mapping sentence was constructed to define values as guiding principles. Guided by the Facet Theory approach, the perceptual structure of the value system as well as value preferences are reviewed in a comparative perspective: veteran Israelis vis-à-vis new immigrants from the former Soviet Union (FSU). The data are part of a comprehensive study on Israeli society (Levy, Levinsohn & Katz 2002), conducted between June 1999 and January 2000. Two samples were investigated by means of face-to-face interviews: a national sample of Jewish Israeli adults, consisting of 2,466 respondents, and a comparable representative sample of FSU immigrants, consisting of 373 respondents. FSU immigrants attribute less importance than do veteran Israelis to each of the values under study, but they do not differ much in their value preferences. Both groups share a basic similar circular structure of values (a radex) specified by the orientations of the values, thus replicating earlier studies on values. Differences in a few details are discussed." (author's abstract

Search for dark matter produced in association with bottom or top quarks in √s = 13 TeV pp collisions with the ATLAS detector

A search for weakly interacting massive particle dark matter produced in association with bottom or top quarks is presented. Final states containing third-generation quarks and miss- ing transverse momentum are considered. The analysis uses 36.1 fb−1 of proton–proton collision data recorded by the ATLAS experiment at √s = 13 TeV in 2015 and 2016. No significant excess of events above the estimated backgrounds is observed. The results are in- terpreted in the framework of simplified models of spin-0 dark-matter mediators. For colour- neutral spin-0 mediators produced in association with top quarks and decaying into a pair of dark-matter particles, mediator masses below 50 GeV are excluded assuming a dark-matter candidate mass of 1 GeV and unitary couplings. For scalar and pseudoscalar mediators produced in association with bottom quarks, the search sets limits on the production cross- section of 300 times the predicted rate for mediators with masses between 10 and 50 GeV and assuming a dark-matter mass of 1 GeV and unitary coupling. Constraints on colour- charged scalar simplified models are also presented. Assuming a dark-matter particle mass of 35 GeV, mediator particles with mass below 1.1 TeV are excluded for couplings yielding a dark-matter relic density consistent with measurements