The Journey Home- Guiding Intangible Knowledge Production in the Analysis of Ancestral Remains (Final Report)

This study, co-developed by David Schaepe, Director, Stó:lo Research and Resource Management Centreand Susan Rowley, Associate Professor, Department of Anthropology, University of British Columbia, stems from the Journey Home Project, a repatriation of ancestral remains from the UBC Lab of Archaeology (LOA) to the Stó:lo Nation of southwestern B.C.    For the Stó:lo, knowing as much as possible about these ancestors informs their process. How can scientific research address Stó:lo questions and aid this repatriation? Opportunity recently arose for scientific study, stimulating a Stó:lo-LOA dialogue touching on multiple issues of scientific process, knowledge production and intellectual property. What types of anthropological research and scientific analyses can be applied to answer community-based questions? What are the details and cultural implications of analyses — both destructive and non-destructive? Who decides which questions to ask and which means of research to implement? Who interprets the results? Who owns those data? How do ‘scientific’ and ‘cultural’ ways of knowing relate? Who is allowed to share in and benefit from this knowledge? These questions are central to the Stó:lo ’s relationship with both their ancestors and LOA.   This study aims to provide guidelines for generating knowledge within a mutually acceptable framework of authority, control, and use. These critical issues are at the forefront of our conversations as we work together to complete The Journey Home

Supporting Indigenous Adaptation in a Changing Climate: Insights from the Stó:lō Research and Resource Management Centre (British Columbia) and the Fort Apache Heritage Foundation (Arizona)

Indigenous peoples are both disproportionately threatened by global climate change and uniquely positioned to enhance local adaptive capacities. We identify actions that support Indigenous adaptation based on organizational and community perspectives. Our data come from two Indigenous organizations that share cultural heritage stewardship missions—the Stó:lō Research and Resource Management Centre (Stó:lō Nation, British Columbia) and the Fort Apache Heritage Foundation (White Mountain Apache Tribe, Arizona). These organizations collaborated with us in exploring community perceptions of climate effects, investigating community adaptation opportunities and constraints, and identifying actions that support Indigenous adaptation. Research methods included engagement with organizational collaborators and semi-structured interviews with organizational representatives and community members and staff. Results confirm that Stó:lō and Apache territories and communities have experienced climate change impacts, such as changes in temperature, hydrology, and increase in extreme weather events. Climate effects are cumulative to colonial depletion of traditional environments and further reduce access to traditional resources, practices, and food security. Results indicated that certain actions are identified by community members as adaptation enablers across case studies—most prominently, perpetuation of Indigenous culture and knowledge, climate education that is tailored to local contexts, collaborative decision-making among community institutions, and integration of climate adaptation into ongoing organizational programs. We conclude that Indigenous-owned organizations are engaged in the expansion of adaptive capacity and hold potential to further support their communities

The Journey Home- Guiding Intangible Knowledge Production in the Analysis of Ancestral Remains (Final Report)

This study, co-developed by David Schaepe, Director, Stó:lo Research and Resource Management Centreand Susan Rowley, Associate Professor, Department of Anthropology, University of British Columbia, stems from the Journey Home Project, a repatriation of ancestral remains from the UBC Lab of Archaeology (LOA) to the Stó:lo Nation of southwestern B.C.    For the Stó:lo, knowing as much as possible about these ancestors informs their process. How can scientific research address Stó:lo questions and aid this repatriation? Opportunity recently arose for scientific study, stimulating a Stó:lo-LOA dialogue touching on multiple issues of scientific process, knowledge production and intellectual property. What types of anthropological research and scientific analyses can be applied to answer community-based questions? What are the details and cultural implications of analyses — both destructive and non-destructive? Who decides which questions to ask and which means of research to implement? Who interprets the results? Who owns those data? How do ‘scientific’ and ‘cultural’ ways of knowing relate? Who is allowed to share in and benefit from this knowledge? These questions are central to the Stó:lo ’s relationship with both their ancestors and LOA.   This study aims to provide guidelines for generating knowledge within a mutually acceptable framework of authority, control, and use. These critical issues are at the forefront of our conversations as we work together to complete The Journey Home

Measurement of the cross-section and charge asymmetry of WW bosons produced in proton-proton collisions at s=8\sqrt{s}=8 TeV with the ATLAS detector

This paper presents measurements of the $W^+ \rightarrow \mu^+\nu$ and $W^- \rightarrow \mu^-\nu$ cross-sections and the associated charge asymmetry as a function of the absolute pseudorapidity of the decay muon. The data were collected in proton--proton collisions at a centre-of-mass energy of 8 TeV with the ATLAS experiment at the LHC and correspond to a total integrated luminosity of 20.2~\mbox{fb^{-1}}. The precision of the cross-section measurements varies between 0.8% to 1.5% as a function of the pseudorapidity, excluding the 1.9% uncertainty on the integrated luminosity. The charge asymmetry is measured with an uncertainty between 0.002 and 0.003. The results are compared with predictions based on next-to-next-to-leading-order calculations with various parton distribution functions and have the sensitivity to discriminate between them.Comment: 38 pages in total, author list starting page 22, 5 figures, 4 tables, submitted to EPJC. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/STDM-2017-13

Search for chargino-neutralino production with mass splittings near the electroweak scale in three-lepton final states in √s=13 TeV pp collisions with the ATLAS detector

A search for supersymmetry through the pair production of electroweakinos with mass splittings near the electroweak scale and decaying via on-shell W and Z bosons is presented for a three-lepton final state. The analyzed proton-proton collision data taken at a center-of-mass energy of √s=13  TeV were collected between 2015 and 2018 by the ATLAS experiment at the Large Hadron Collider, corresponding to an integrated luminosity of 139  fb−1. A search, emulating the recursive jigsaw reconstruction technique with easily reproducible laboratory-frame variables, is performed. The two excesses observed in the 2015–2016 data recursive jigsaw analysis in the low-mass three-lepton phase space are reproduced. Results with the full data set are in agreement with the Standard Model expectations. They are interpreted to set exclusion limits at the 95% confidence level on simplified models of chargino-neutralino pair production for masses up to 345 GeV

Measurements of fiducial and differential cross sections for Higgs boson production in the diphoton decay channel at s√=8 TeV with ATLAS

Measurements of fiducial and differential cross sections are presented for Higgs boson production in proton-proton collisions at a centre-of-mass energy of s√=8 TeV. The analysis is performed in the H → γγ decay channel using 20.3 fb−1 of data recorded by the ATLAS experiment at the CERN Large Hadron Collider. The signal is extracted using a fit to the diphoton invariant mass spectrum assuming that the width of the resonance is much smaller than the experimental resolution. The signal yields are corrected for the effects of detector inefficiency and resolution. The pp → H → γγ fiducial cross section is measured to be 43.2 ±9.4(stat.) − 2.9 + 3.2 (syst.) ±1.2(lumi)fb for a Higgs boson of mass 125.4GeV decaying to two isolated photons that have transverse momentum greater than 35% and 25% of the diphoton invariant mass and each with absolute pseudorapidity less than 2.37. Four additional fiducial cross sections and two cross-section limits are presented in phase space regions that test the theoretical modelling of different Higgs boson production mechanisms, or are sensitive to physics beyond the Standard Model. Differential cross sections are also presented, as a function of variables related to the diphoton kinematics and the jet activity produced in the Higgs boson events. The observed spectra are statistically limited but broadly in line with the theoretical expectations

Search for squarks and gluinos in events with isolated leptons, jets and missing transverse momentum at s√=8 TeV with the ATLAS detector

The results of a search for supersymmetry in final states containing at least one isolated lepton (electron or muon), jets and large missing transverse momentum with the ATLAS detector at the Large Hadron Collider are reported. The search is based on proton-proton collision data at a centre-of-mass energy s√=8 TeV collected in 2012, corresponding to an integrated luminosity of 20 fb−1. No significant excess above the Standard Model expectation is observed. Limits are set on supersymmetric particle masses for various supersymmetric models. Depending on the model, the search excludes gluino masses up to 1.32 TeV and squark masses up to 840 GeV. Limits are also set on the parameters of a minimal universal extra dimension model, excluding a compactification radius of 1/R c = 950 GeV for a cut-off scale times radius (ΛR c) of approximately 30

Measurement of χ c1 and χ c2 production with s√ = 7 TeV pp collisions at ATLAS

The prompt and non-prompt production cross-sections for the χ c1 and χ c2 charmonium states are measured in pp collisions at s√ = 7 TeV with the ATLAS detector at the LHC using 4.5 fb−1 of integrated luminosity. The χ c states are reconstructed through the radiative decay χ c → J/ψγ (with J/ψ → μ + μ −) where photons are reconstructed from γ → e + e − conversions. The production rate of the χ c2 state relative to the χ c1 state is measured for prompt and non-prompt χ c as a function of J/ψ transverse momentum. The prompt χ c cross-sections are combined with existing measurements of prompt J/ψ production to derive the fraction of prompt J/ψ produced in feed-down from χ c decays. The fractions of χ c1 and χ c2 produced in b-hadron decays are also measured

Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector

Results of a search for H → τ τ decays are presented, based on the full set of proton-proton collision data recorded by the ATLAS experiment at the LHC during 2011 and 2012. The data correspond to integrated luminosities of 4.5 fb−1 and 20.3 fb−1 at centre-of-mass energies of √s = 7 TeV and √s = 8 TeV respectively. All combinations of leptonic (τ → `νν¯ with ` = e, µ) and hadronic (τ → hadrons ν) tau decays are considered. An excess of events over the expected background from other Standard Model processes is found with an observed (expected) significance of 4.5 (3.4) standard deviations. This excess provides evidence for the direct coupling of the recently discovered Higgs boson to fermions. The measured signal strength, normalised to the Standard Model expectation, of µ = 1.43 +0.43 −0.37 is consistent with the predicted Yukawa coupling strength in the Standard Model