| 1. |
- Abelev, Betty, et al.
(author)
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Underlying Event measurements in pp collisions at root s=0.9 and 7 TeV with the ALICE experiment at the LHC
- 2012
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In: Journal of High Energy Physics. - 1029-8479. ; :7
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Journal article (peer-reviewed)abstract
- We present measurements of Underlying Event observables in pp collisions at root s = 0 : 9 and 7 TeV. The analysis is performed as a function of the highest charged-particle transverse momentum p(T),L-T in the event. Different regions are defined with respect to the azimuthal direction of the leading (highest transverse momentum) track: Toward, Transverse and Away. The Toward and Away regions collect the fragmentation products of the hardest partonic interaction. The Transverse region is expected to be most sensitive to the Underlying Event activity. The study is performed with charged particles above three different p(T) thresholds: 0.15, 0.5 and 1.0 GeV/c. In the Transverse region we observe an increase in the multiplicity of a factor 2-3 between the lower and higher collision energies, depending on the track p(T) threshold considered. Data are compared to PYTHIA 6.4, PYTHIA 8.1 and PHOJET. On average, all models considered underestimate the multiplicity and summed p(T) in the Transverse region by about 10-30%.
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| 2. |
- Abelev, Betty, et al.
(author)
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Measurement of prompt J/psi and beauty hadron production cross sections at mid-rapidity in pp collisions at root s=7 TeV
- 2012
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In: Journal of High Energy Physics. - 1029-8479. ; :11
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Journal article (peer-reviewed)abstract
- The ALICE experiment at the LHC has studied J/psi production at mid-rapidity in pp collisions at root s = 7 TeV through its electron pair decay on a data sample corresponding to an integrated luminosity L-int = 5.6 nb(-1). The fraction of J/psi from the decay of long-lived beauty hadrons was determined for J/psi candidates with transverse momentum p(t) > 1,3 GeV/c and rapidity vertical bar y vertical bar < 0.9. The cross section for prompt J/psi mesons, i.e. directly produced J/psi and prompt decays of heavier charmonium states such as the psi(2S) and chi(c) resonances, is sigma(prompt J/psi) (p(t) > 1.3 GeV/c, vertical bar y vertical bar < 0.9) = 8.3 +/- 0.8(stat.) +/- 1.1 (syst.)(-1.4)(+1.5) (syst. pol.) mu b. The cross section for the production of b-hadrons decaying to J/psi with p(t) > 1.3 GeV/c and vertical bar y vertical bar < 0.9 is a sigma(J/psi <- hB) (p(t) > 1.3 GeV/c, vertical bar y vertical bar < 0.9) = 1.46 +/- 0.38 (stat.)(-0.32)(+0.26) (syst.) mu b. The results are compared to QCD model predictions. The shape of the p(t) and y distributions of b-quarks predicted by perturbative QCD model calculations are used to extrapolate the measured cross section to derive the b (b) over bar pair total cross section and d sigma/dy at mid-rapidity.
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| 3. |
- Abelev, Betty, et al.
(author)
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Long-range angular correlations on the near and away side in p-Pb collisions at root S-NN=5.02 TeV
- 2013
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In: Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics. - : Elsevier BV. - 0370-2693. ; 719:1-3, s. 29-41
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Journal article (peer-reviewed)abstract
- Angular correlations between charged trigger and associated particles are measured by the ALICE detector in p-Pb collisions at a nucleon-nucleon centre-of-mass energy of 5.02 TeV for transverse momentum ranges within 0.5 < P-T,P-assoc < P-T,P-trig < 4 GeV/c. The correlations are measured over two units of pseudorapidity and full azimuthal angle in different intervals of event multiplicity, and expressed as associated yield per trigger particle. Two long-range ridge-like structures, one on the near side and one on the away side, are observed when the per-trigger yield obtained in low-multiplicity events is subtracted from the one in high-multiplicity events. The excess on the near-side is qualitatively similar to that recently reported by the CMS Collaboration, while the excess on the away-side is reported for the first time. The two-ridge structure projected onto azimuthal angle is quantified with the second and third Fourier coefficients as well as by near-side and away-side yields and widths. The yields on the near side and on the away side are equal within the uncertainties for all studied event multiplicity and p(T) bins, and the widths show no significant evolution with event multiplicity or p(T). These findings suggest that the near-side ridge is accompanied by an essentially identical away-side ridge. (c) 2013 CERN. Published by Elsevier B.V. All rights reserved.
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| 4. |
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| 5. |
- Foka, Anna, 1981-, et al.
(author)
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Beyond humanities qua digital : Spatial and material development for digital research infrastructures
- 2018
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In: Digital Scholarship in the Humanities. - Oxford : Oxford University Press. - 2055-7671 .- 2055-768X. ; 33:2, s. 264-278
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Journal article (peer-reviewed)abstract
- Universities around the world have increasingly turned to digital infrastructures as a way to revamp the arts and humanities. This article contributes a fresh understanding by examining the material development of HumlabX, a research laboratory for digital humanities at Umeå University, Sweden. Specifically, we approach the empirical case as a timeline of research funding, projects, events, and deliverables to examine how the research laboratory as an organizational and material space developed and evolved in relation to new technology investments. Based on our analysis, we argue that while digital research infrastructures can, indeed, stimulate innovation in and around research, aimed to produce new knowledge, digital technologies carry social and material implications that affect organizational processes. We show that while knowledge production processes at HumlabX were highly influenced by the infrastructural legacy of the past, they indeed directed scholars toward innovation. By discussing these implications in detail, we move beyond the debate of humanities qua digital, and demonstrate the need for scholars of digital humanities to engage in the development of policies for digital research infrastructures. Using a Swedish case study, we argue that research laboratories for the digital humanities must be scrutinized and should be fully exposed as socio-material organizations that develop, and should develop, over time. In particular, we stress the need to ensure that digital humanities laboratories are sustainable and open for redevelopment.
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| 6. |
- Arvidsson, Viktor, 1984-, et al.
(author)
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Digital gender : perspective, phenomena, practice
- 2015
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In: First Monday. - Chicago : University of Illinois Press. - 1396-0466. ; 20:4
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Journal article (peer-reviewed)abstract
- Past research on gender online has made important land gains but under-theorizes the Internet as a passive, fixed, and somewhat insubstantial space or context. By contrast, this special issue draws on new material thinking to put into questions the very notion of “cyberspace” as a distinct realm. In this vein, the contents of this issue critically examine how the Internet and related digital technologies actively “work” to maintain or transform systems of oppression, as displayed, for example, in the digital doing(s) of gender. They also show how digital technologies and related concepts can be used to challenge current understandings of race, class, and gender and to produce and provoke new forms of knowledge. While the contents of this issue are drawn from different fields and display great diversity, the individual contributions of each author helps to chart out three potent venues for future Internet research: namely digital gender as perspective, phenomena, and practice.
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| 7. |
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| 8. |
- Barker, Elton, et al.
(author)
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Coding for the Many, Transforming Knowledge for All : Annotating Digital Documents
- 2020
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In: Publications of the Modern Language Association of America. - : MODERN LANGUAGE ASSOC AMER. - 0030-8129 .- 1938-1530. ; 135:1, s. 195-202
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Journal article (peer-reviewed)abstract
- Annotation—“A Note Added to Anything Written, By Way of Explanation or Comment”—Is Almost as Old as Writing Itself (“annotation”). Among the first texts to be written down, Homer's oral poems survive thanks first to Hellenistic scholars, whose comments and explanations formed the editions that came down to us, and second to later manuscript technology, which enabled the painstaking copying of both the texts and the notes associated with them (see fig. 1). At the I Annotate 2019 conference, Gardner Campbell reflected on the meaning ofto noteand identified as its essence the idea of signing: “A sign that we formulate, a sign that we leave, a sign thatpointsto something, points to a meaning, points to another word, but also points to thepointer.We leave signs;weleave signs;Iannotate. The agency in the word note is extraordinary” (00:07:35-58). To note is, as Campbell'skeynoteput it, a fundamental act of attention, of sharing, as basic as “water” or “love” (00:06:16-00:07:25). To note is an essential human act.
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| 9. |
- Barker, Elton, et al.
(author)
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Journeying through Space and Time with Pausanias’s Description of Greece
- 2023
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In: Literary Geographies. - 0324-8305 .- 2397-1797. ; 9:1, s. 124-160
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Journal article (peer-reviewed)abstract
- Sometime in the second century CE, Pausanias of Magnesia (modern-day Turkey) wrote the Description of Greece. Ostensibly a tour of the places to see on the Greek mainland, the Description also provides historical accounts related to the topography through which Pausanias moves. Little attention has been given to how these building blocks of narrative, the entities of place and time, relate to and intersect with each other. In this article, we establish a framework for systematically investigating Pausanias’s chronotopes through a process of semantic annotation. We describe our typology for categorizing place and time, with the aim of enabling this text’s database of information — the descriptions of the built environment, its temples, statues, etc. — to be mapped and analysed. Our emphasis, however, is on how the technology equally facilitates close reading, as we trace how individual locations, objects and people relate to each other through the unfolding of chronotopes, and examine how in turn these chronotopes transform our understanding of the spaces of Greece and Greece as a place. We conclude by offering reflections on the potential for semantic annotation of the kind documented here not only for conducting chronotopic investigations of literary geographies, but also for bringing the textualization of space into direct dialogue with the material culture on the ground.
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