The XENON1T Data Distribution and Processing Scheme

The XENON experiment is looking for non-baryonic particle dark matter in the universe. The setup is a dual phase time projection chamber (TPC) filled with 3200 kg of ultra-pure liquid xenon. The setup is operated at the Laboratori Nazionali del Gran Sasso (LNGS) in Italy. We present a full overview of the computing scheme for data distribution and job management in XENON1T. The software package Rucio, which is developed by the ATLAS collaboration, facilitates data handling on Open Science Grid (OSG) and European Grid Infrastructure (EGI) storage systems. A tape copy at the Center for High Performance Computing (PDC) is managed by the Tivoli Storage Manager (TSM). Data reduction and Monte Carlo production are handled by CI Connect which is integrated into the OSG network. The job submission system connects resources at the EGI, OSG, SDSC's Comet, and the campus HPC resources for distributed computing. The previous success in the XENON1T computing scheme is also the starting point for its successor experiment XENONnT, which starts to take data in autumn 2019.Comment: 8 pages, 2 figures, CHEP 2018 proceeding

Science in Pieces: Public Science in the Deformation Age

This dissertation investigates how public information about new scientific research flows through the contemporary media system. Arguing that public science is governed more by entropy than inertia, this project investigates the people, technologies, and processes through which difference is brought into flows of information about direct detection of dark matter experiments. Over six empirical chapters, the project considers how three types of organizational mediators of public science—multi-institution collaborations, communication offices at national laboratories, and science journalists—translate, move, preserve, and/or deconstruct information. To do so, it draws on diverse methods, including 62 semi-structured interviews with members of these organizations and an interpretive textual analysis of hundreds of news articles, press releases, and organizational documents. This project makes three broad contributions. First, it provides a detailed account of how science organizations are adopting new practices, structures, and formats to reach new audiences amid changing technologies, economic pressures, and cultures. Second, it extends Bruno Latour’s circulating reference to present a new descriptive and normative model of the epistemology of public science communication that acknowledges how the reduction of technical complexity can productively afford an expansion of public meaning. It argues that good public communication must shepherd the relationships and connections that allow truth to circulate across time, space, and reference, while simultaneously working to open content for public discussion, consideration, and meaning making. Finally, this project considers what happens when these mediations go wrong. Instead of mis or disinformation—information lacking truth—this project recognizes another form of information degradation: deformation. Deformations are structural artifacts of the contemporary media system: pieces and fragments broken off in the grinding of disparate logics, systems, technologies, and messages. They emerge when information loses its organization, its formation. Observing deformation in science and beyond, this project ultimately argues that despite decades of scholarship on the “information society,” ours is better recognized as the “deformation society.”Doctor of Philosoph

LUX-ZEPLIN (LZ) Technical Design Report

In this Technical Design Report (TDR) we describe the LZ detector to be built at the Sanford Underground Research Facility (SURF). The LZ dark matter experiment is designed to achieve sensitivity to a WIMP-nucleon spin-independent cross section of three times ten to the negative forty-eighth square centimeters

Experimental And Theoretical High Energy Physics Research At UCLA

This is the final report of the UCLA High Energy Physics DOE Grant No. DE-FG02- 91ER40662. This report covers the last grant project period, namely the three years beginning January 15, 2010, plus extensions through April 30, 2013. The report describes the broad range of our experimental research spanning direct dark matter detection searches using both liquid xenon (XENON) and liquid argon (DARKSIDE); present (ICARUS) and R&D for future (LBNE) neutrino physics; ultra-high-energy neutrino and cosmic ray detection (ANITA); and the highest-energy accelerator-based physics with the CMS experiment and CERN’s Large Hadron Collider. For our theory group, the report describes frontier activities including particle astrophysics and cosmology; neutrino physics; LHC interaction cross section calculations now feasible due to breakthroughs in theoretical techniques; and advances in the formal theory of supergravity

Background discrimination of EDELWEISS-III cryogenic Ge-detectors for dark matter search

The EDELWEIS-III experiment is a direct dark matter search experiment using cryogenic Ge detectors with dual signal readout in ionization and heat for particle identification and background suppression. Within this thesis, a new data analysis framework has been developed. It features an automatic database driven processing and improved ionization signal filtering. A verification of the processing has been done and the focus of the thesis has been set on the analysis of surface backgrounds