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- 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. |
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| 3. |
- Eklöf, Jenny, et al.
(författare)
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Technoscientific promotion and biofuel policy : How the press and search engines stage the biofuel controversy
- 2013
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Ingår i: Media Culture and Society. - : SAGE Publications. - 0163-4437 .- 1460-3675. ; 35:4, s. 454-471
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Tidskriftsartikel (refereegranskat)abstract
- What are the conditions for the public understanding of biofuels and how do the media shape these conditions under the influence of a new production of knowledge? This article investigates how the biofuel controversy plays out in the Swedish press and Google search engine results and analyses winners and losers in the tight attention economy of contemporary media. It describes different visibility strategies biofuel stakeholders employ in both media arenas, and identifies a form of technoscientific promotion that hybrid actors use to succeed in the day-to-day struggle for media attention. To conclude, it raises broader societal questions of the contemporary blurring of knowledge boundaries and the emergence of new information hierarchies and their biases. By understanding how contemporary media shape controversies, we can address the democratic potential of both mass media and science.
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| 4. |
- Mager, Astrid, et al.
(författare)
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Advancing search engine studies: The evolution of Google critique and intervention
- 2023
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Ingår i: Big Data and Society. - 2053-9517. ; 10:1, s. 1-8
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Tidskriftsartikel (refereegranskat)abstract
- In this piece, which frames the special issue, “The State of Google Critique and Intervention,” we provide an overview of research focusing on Google as an object of critical study, fleshing out the European interventions that actively attempt to address its dominance. The article begins by mapping out key areas of articulating a Google critique, from the initial focus on ranking and profiling to the subsequent scrutiny of user exploitation and competitive imbalance. As such, it situates the contributions to this special issue concerning search engine bias and discrimination, the ethics of Google Autocomplete, Google's content moderation, the commodification of engine audiences and the political economy of technical systems in a broader history of Google criticism. It then proceeds to contextualize the European developments that put forward alternatives and draws attention to legislative efforts to curb the influence of big tech. We conclude by identifying a few avenues for continued critical study, such as Google's infrastructural bundling of generative artificial intelligence with existing products, to emphasize the importance of intervention in the future.
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