13 research outputs found

    The CMS Phase-1 pixel detector upgrade

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    The CMS detector at the CERN LHC features a silicon pixel detector as its innermost subdetector. The original CMS pixel detector has been replaced with an upgraded pixel system (CMS Phase-1 pixel detector) in the extended year-end technical stop of the LHC in 2016/2017. The upgraded CMS pixel detector is designed to cope with the higher instantaneous luminosities that have been achieved by the LHC after the upgrades to the accelerator during the first long shutdown in 2013–2014. Compared to the original pixel detector, the upgraded detector has a better tracking performance and lower mass with four barrel layers and three endcap disks on each side to provide hit coverage up to an absolute value of pseudorapidity of 2.5. This paper describes the design and construction of the CMS Phase-1 pixel detector as well as its performance from commissioning to early operation in collision data-taking.Peer reviewe

    Techne, technology, technician: the creative practices of the mastercraftsperson

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    The article explores the creative practices or techne of the theater technician. The author seeks to promote and to begin to theorize a view of the technician that reconnects the technologies of theater and the arts of theater, via the persona of the expert practitioners and the expertise in action

    Retail theater; the intended effect of the performance

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    Retailers selling very different types of merchandise are adopting the phrase retail theater in their public descriptions of their offers. The contribution of this article is an assessment of the use of the theater metaphor in retailing, especially with respect to the theatrical stage settings designed to create specific intended effects on audiences. Four forms of theater—theatrical realism, political realism, surrealism, and absurd theater—are used as examples. From the analysis of the theatrical performances, it is seen that the role of the audience is always considered explicitly; the role is different in different forms of theater, and writers and directors are clear as to the role that they would like audiences to adopt in a given performance. Such an approach can be translated into retailing. Examples are given of the intended customer (audience) effects, which can be created from retailing versions of the four theater style

    The (Re)Introduction of Modern Finance Ideas in France between the Mid-1970s and the Early 1980s and Its Paradoxes

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