5,698 research outputs found
The CMS RPC gas gain monitoring system: an overview and preliminary results
The status of the CMS RPC Gas Gain Monitoring (GGM) system developed at the
Frascati Laboratory of INFN (Istituto Nazionale di Fisica Nucleare) is reported
on. The GGM system is a cosmic ray telescope based on small RPC detectors
operated with the same gas mixture used by the CMS RPC system. The GGM gain and
efficiency are continuously monitored on-line, thus providing a fast and
accurate determination of any shift in working point conditions. The
construction details and the first result of GGM commissioning are described.Comment: 8 pages, 9 figures, uses lnfprepCMS.sty, presented by L. Benussi at
RPC07, Mumbai, INDIA 200
Child abuse and neglect in ambiti istituzionali che coinvolgono gruppi di autori e vittime. Riflessioni e contributi sui problemi relativi alla valutazione della idoneitĂ a testimoniare
Expert and clinical experiences, literature, concerning the assessment of the suitability of minors involved in "collective" abuses, or who have simultaneously seen the presence of multiple perpetrators and/or victims, highlights a certain lack of scientific studies, reflections and contributions, specifically oriented on this sample of subjects. The overwhelming majority of technical, methodological and scientific considerations and observations aimed at evaluating the suitability of this particular population to testify, can therefore only be based - again - on studies, experien-ces and contributions of method and doctrine relating to the theme of the evaluation of suitability to testify of the individual victim. On the contrary, the cases of abuse in which a significant num-ber of minors are involved, often not bound by any kinship and which can be placed in institutional or group contexts. These cases present aspects, contents, profiles, phenomenologies, behaviors of the protagonists (authors, victims, witnesses and their families, institutions and groups in which they are inserted), completely different from cases in which individual subjects are involved, and above all, and it is the at the heart of our work, they require methods of listening, intervention, management and implementation of investigative and expert activities that are very different from the cases involving individual minors, or small groups of minors as victims and witnesses
The Extreme Energy Events HECR array: status and perspectives
The Extreme Energy Events Project is a synchronous sparse array of 52
tracking detectors for studying High Energy Cosmic Rays (HECR) and Cosmic
Rays-related phenomena. The observatory is also meant to address Long Distance
Correlation (LDC) phenomena: the network is deployed over a broad area covering
10 degrees in latitude and 11 in longitude. An overview of a set of preliminary
results is given, extending from the study of local muon flux dependance on
solar activity to the investigation of the upward-going component of muon flux
traversing the EEE stations; from the search for anisotropies at the sub-TeV
scale to the hints for observations of km-scale Extensive Air Shower (EAS).Comment: XXV ECRS 2016 Proceedings - eConf C16-09-04.
Measurements of branching fraction ratios and CP-asymmetries in suppressed B^- -> D(-> K^+ pi^-)K^- and B^- -> D(-> K^+ pi^-)pi^- decays
We report the first reconstruction in hadron collisions of the suppressed
decays B^- -> D(-> K^+ pi^-)K^- and B^- -> D(-> K^+ pi^-)pi^-, sensitive to the
CKM phase gamma, using data from 7 fb^-1 of integrated luminosity collected by
the CDF II detector at the Tevatron collider. We reconstruct a signal for the
B^- -> D(-> K^+ pi^-)K^- suppressed mode with a significance of 3.2 standard
deviations, and measure the ratios of the suppressed to favored branching
fractions R(K) = [22.0 \pm 8.6(stat)\pm 2.6(syst)]\times 10^-3, R^+(K) =
[42.6\pm 13.7(stat)\pm 2.8(syst)]\times 10^-3, R^-(K)= [3.8\pm 10.3(stat)\pm
2.7(syst]\times 10^-3, as well as the direct CP-violating asymmetry A(K) =
-0.82\pm 0.44(stat)\pm 0.09(syst) of this mode. Corresponding quantities for
B^- -> D(-> K^+ pi^-)pi^- decay are also reported.Comment: 8 pages, 1 figure, accepted by Phys.Rev.D Rapid Communications for
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