| 1. |
- Abelev, Betty, et al.
(författare)
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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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Ingår i: 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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Tidskriftsartikel (refereegranskat)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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| 2. |
- Abelev, Betty, et al.
(författare)
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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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Ingår i: Journal of High Energy Physics. - 1029-8479. ; :11
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Tidskriftsartikel (refereegranskat)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. |
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| 4. |
- Baumann, Chris
(författare)
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Beyond the black box : Digital media players as interoperable systems
- 2019
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Ingår i: Journal of popular television. - : Intellect. - 2046-9861. ; 7:2, s. 201-215
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Tidskriftsartikel (refereegranskat)abstract
- This article looks at the entanglement of materiality, social practices and institutional interventions connected to the emergence of digital media players, in order to understand the cultural practices that their development and stabilization provoke. After laying out a framework for studying interconnectivity in complex systems, and introducing the notion of interoperable systems as a conceptual intervention for the study of media technologies, I offer a case study of the development of Microsoft's Xbox One, in which particular attention is paid to the various 'repair practices' that the system's limitations motivated among different social groups. I argue that seemingly 'simple' and 'seamless' operations that an everyday phenomenon like the Xbox One promises, such as using the device to stream a video, are in fact made possible by a complex set of technological, social and organizational mechanisms that are deliberately negotiated and manipulated at different layers.
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| 5. |
- Baumann, Chris, et al.
(författare)
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East Asian wisdom and relativity : Inter-ocular testing of Schwartz values from WVS with extension of the ReVaMB model
- 2018
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Ingår i: Cross cultural & strategic management. - 2059-5794 .- 2059-5808. ; 25:2, s. 210-230
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Tidskriftsartikel (refereegranskat)abstract
- Purpose The purpose of this paper is threefold. First, the paper demonstrates how inter-ocular testing (looking at the data) of Schwartz values from world values study (WVS) provides a surprisingly different picture to what the authors would expect from traditional mean comparison testing (t-tests, analysis of variance (ANOVA)). Second, the authors suggest that the ReVaMB model can be applied to an East Asian philosophical perspective. Relativity, the authors argue, is a factor when East Asian wisdom, philosophies and ideologies (Confucianism, Taoism, Buddhism and Legalism) drive outcomes such as work ethic. Third, the paper serves as an editorial to a special issue in CCSM on East Asian wisdom and its impact on business culture and performance in a cross-cultural context. Common themes are Yin Yang, how different cultures deal with paradox, and Zhong Yong, with accompanying concerns of how to conceptualise and deal with balance of opposites. Design/methodology/approach The authors adopted ten variables of the Schwartz values scales used in the WVS and subjected them to principle components analysis to reduce the number of variables. The authors found a two-factor solution: one relating to personal material success and adventure and excitement; another relating to success and personal recognition. The authors labelled these factors as Altruism and Hedonism. The analysis is based on an overall sample of 84,692 respondents in 60 countries. In addition to traditional statistical testing, the authors conduct inter-ocular testing. The authors also suggest that the ReVaMB model can be applied to East Asian wisdom. Findings Three recommendations help to arrive at more accurate conclusions when comparing groups: the authors recommend to aspire to consistent look and statistic. If the data distribution does not agree with the statistics, then the researcher should take a closer look. To avoid misinterpreting statistics and other analysis, the authors recommend inter-ocular testing, i.e. eyeballing data in a scientific fashion. The authors provide specific examples how to do that. The authors recommend to test for common-language effect size (CLE), and also recommend a new rule of thumb, i.e. a split of 60/40 as minimum difference to make any generalisation; 70/30 is worth considering. The rule of thumb contributes to better differentiation between real and not real differences. Originality/value The authors introduce two concepts: the inter-ocular test, which simply means to look at your data, and the Chinese word, ?? (Cujue) which roughly translates to illusion, wrong impression, or misconception. This study argues against accepting simplistic averages for data analysis. The authors provide evidence that an inter-ocular test provides a more comprehensive picture of data when comparing groups rather than simply relying on traditional statistical mean comparison testing. The word of caution is to avoid premature conclusions on group comparisons with statistical testing alone. The authors also propose an extension of the original ReVaMB model from a confucian orientation to a broad East Asian philosophical perspective. Culture does determine attitudes and behaviour which in turn contribute to the shaping of cultures, depending on situation, context, location and time. The context for a situation to occur should be tested as moderators, for example, between East Asian wisdom (Confucianism, Taoism, Buddhism and Legalism) and behavioural or attitudinal dimensions such as work ethic.
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| 6. |
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| 7. |
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| 8. |
- Baumann, Chris, 1986-
(författare)
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Netflix
- 2017
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Ingår i: The SAGE Encyclopedia of the Internet. - : Sage Publications. - 9781473926615
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Bokkapitel (övrigt vetenskapligt/konstnärligt)
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| 9. |
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| 10. |
- Baumann, Chris, 1986-
(författare)
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Sweden: Circumvention and the Quest for Privacy
- 2016
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Ingår i: Geoblocking and Global Video Culture. - Amsterdam : Institute of Network Cultures. - 9789492302038 ; , s. 140-149
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Bokkapitel (refereegranskat)
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