| 1. |
- Allard, Christina, et al.
(författare)
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Rasbiologiskt språkbruk i statens rättsprocess mot sameby : DN Debatt 2015-06-11
- 2015
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Annan publikation (populärvet., debatt m.m.)abstract
- Statens hantering av forskningsresultat i rättsprocessen med Girjas sameby utgör ett hot mot Sverige som rättsstat och kunskapsnation. Åratal av svensk och internationell forskning underkänns och man använder ett språkbruk som skulle kunna vara hämtat från rasbiologins tid. Nu måste staten ta sitt ansvar och börja agera som en demokratisk rättsstat, skriver 59 forskare.
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| 2. |
- Fronczek, Jakub, et al.
(författare)
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Relationship between the Clinical Frailty Scale and short-term mortality in patients ≥ 80 years old acutely admitted to the ICU : a prospective cohort study
- 2021
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Ingår i: Critical Care. - : BioMed Central (BMC). - 1364-8535 .- 1466-609X. ; 25:1
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: The Clinical Frailty Scale (CFS) is frequently used to measure frailty in critically ill adults. There is wide variation in the approach to analysing the relationship between the CFS score and mortality after admission to the ICU. This study aimed to evaluate the influence of modelling approach on the association between the CFS score and short-term mortality and quantify the prognostic value of frailty in this context.METHODS: We analysed data from two multicentre prospective cohort studies which enrolled intensive care unit patients ≥ 80 years old in 26 countries. The primary outcome was mortality within 30-days from admission to the ICU. Logistic regression models for both ICU and 30-day mortality included the CFS score as either a categorical, continuous or dichotomous variable and were adjusted for patient's age, sex, reason for admission to the ICU, and admission Sequential Organ Failure Assessment score.RESULTS: The median age in the sample of 7487 consecutive patients was 84 years (IQR 81-87). The highest fraction of new prognostic information from frailty in the context of 30-day mortality was observed when the CFS score was treated as either a categorical variable using all original levels of frailty or a nonlinear continuous variable and was equal to 9% using these modelling approaches (p < 0.001). The relationship between the CFS score and mortality was nonlinear (p < 0.01).CONCLUSION: Knowledge about a patient's frailty status adds a substantial amount of new prognostic information at the moment of admission to the ICU. Arbitrary simplification of the CFS score into fewer groups than originally intended leads to a loss of information and should be avoided. Trial registration NCT03134807 (VIP1), NCT03370692 (VIP2).
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| 3. |
- Håkansson Lindqvist, Marcia, et al.
(författare)
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Building a network for collaborative support in professional development
- 2020
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Ingår i: NETWORKED LEARNING 2020. - Kolding, Denmark : Aalborg university. - 9788797174104 ; , s. 108-111
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Konferensbidrag (refereegranskat)abstract
- This paper aims to explore and describe important steps in creating beneficial conditions for networked learning in a project in organisations. In the inception phase of the project, four important steps were identified: creating a common virtual space, the handshake, the initial support and the mentorship. It is concluded that all the four described steps are important for a successful establishment of a networked community of practice.
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| 4. |
- Jaldemark, Jimmy, Docent, 1970-, et al.
(författare)
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Applying Community of Inquiry in designing higher education lifelong learning courses : The case of the BUFFL-project
- 2024. - 1
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Ingår i: The design of digital learning environments. - New York : Routledge. - 9781003246206 ; , s. 193-214
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Bokkapitel (refereegranskat)abstract
- Designing courses that support collaboration and individual development is a crucial feature of higher education lifelong learning. This chapter reports a model for course design developed in a project with participants from banks, insurance companies, and one governmental insurance agency. The model aims to go beyond individual competencies by focusing also on organizational development with collaborative features inspired by the Community of Inquiry theoretical framework. Based on the network mode, the course design emphasizes collaborative inquiries between participants that link theoretical ideas to authentic organizational problems. Of particular interest is that the model helps lifelong learners to focus on personal meaning and collaborative application of acquired knowledge for the benefit of their organizations.
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| 5. |
- Jaldemark, Jimmy, Docent, 1970-, et al.
(författare)
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Bringing work to school : Transforming higher education through a lifelong and work-integrated learning approach
- 2023
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Ingår i: ICERI2023 Proceedings. - Sevilla, Spain : The International Academy of Technology, Education and Development. - 9788409559428 ; , s. 1543-1550
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Konferensbidrag (refereegranskat)abstract
- Supplying work-life with a well-educated workforce is important for higher education. This task links to societal challenges such as digitalisation, globalisation, and regulation changes. Nevertheless, even if higher education institutions must educate to avoid competence shortages and match-making problems in work-life, such institutions must collaborate with employers. Higher education institutions and employers can meet up to this challenge by developing work-integrated learning programmes collaboratively. Work-integrated learning approaches integrate theoretical knowledge in the workplace by embracing pedagogical methods and strategies based on a specially designed curriculum. The current study discusses and analyses try-outs of a lifelong and work-integrated learning approach in a Business Administration program. The first stage of the project included developing and designing a preliminary framework, including content and activities and pedagogic principles to be applied in a lifelong and work-integrated learning approach. The preliminary framework embraced the following activities: 1) Exchanges of experiences and knowledge between the university and collaborating organisations, 2) Guest lectures from collaborating organisations, 3) Integration of authentic assignments in terms of a Bring-Your-Own-Data from collaboration organisations, 4) Dissertation work at collaborating organisations, 5) Creating hourly paid posts to combine studies and work, and 6) Mentorship to create opportunities for students to get access to work-life settings during their studies. The second stage included the implementation of the preliminary framework. The third stage evaluated the approach to suggest alterations of the preliminary framework. The paper reports and discusses early preliminary results from the try-outs.
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| 6. |
- Jaldemark, Jimmy, Professor, 1970-, et al.
(författare)
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Building hybrids between higher education and society : Applying a networked work-integrated learning framework in a business administration program
- 2024
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Ingår i: Proceedings of the Fourteenth International Conference on Networked Learning 2024. - Aalborg : Aalborg University Open Publishing. ; , s. 1-4
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Konferensbidrag (refereegranskat)abstract
- In this study, the changed context for higher education institutions is analysed through the lens of various approaches to collaboration between higher education institutions and society. Three different approaches are discussed: the ivory tower, the factory, and the network. Although these approaches differ, higher education institutions are complex organisations and can embrace a mix of approaches. Nevertheless, depending on the approach applied, this impacts how collaboration between higher education institutions and organisations in society plays out. The study contextualised these approaches in a joint higher education-industry project focusing on developing work-integrated learning (WIL) in a Business Administration program. WIL should embrace practice-based pedagogical methods and strategies by integrating theoretical knowledge in the workplace. To achieve WIL, a network of stakeholders needs to be engaged actively in practice-based activities. The study aimed to report preliminary results from a higher education work-integrated learning project. The following research question was posed: How can higher education institutions, together with organisations in society, apply a networked approach to work-integrated learning? Thus, this paper contributes to knowledge regarding the networked aspects of the design and development of a preliminary framework, including the following themes: Exchanges of experiences and knowledge, Guest lecturers and Bring-Your-Own-Data (BYOD) assignments. These themes manifest a networked WIL framework as a hybrid between higher education and society. First, the networks of experiences and knowledge within academia merge with those of experiences and knowledge in society. Between these two, a hybrid networked work-integrated framework links higher education and society. Second, the same can be said to be true for guest lecturers. Here, guest lecturers became a link between higher education and society and therefore merge the two networks of learning through information and knowledge exchange. Third, BYOD assignments provided further manifestations of a networked WIL framework. Authentic data from the workplace meet the theories of higher education and a hybrid is created. When practice meets theory, they, too, become a link between higher education and society.
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| 7. |
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| 8. |
- Mozelius, Peter, Dr. 1959-, et al.
(författare)
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Towards a Support Model for Work Integrated Professional Development : a first evaluation of the CHIM steps
- 2020
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Ingår i: 13th annual International Conference of Education, Research and Innovation. - : The International Academy of Technology, Education and Development. - 9788409242320 ; , s. 64-69
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Konferensbidrag (refereegranskat)abstract
- In our 21st century knowledge society the investment in human resources is an essential activity foralmost all companies. Technology enhanced learning has opened up for new, and more flexible formsof work-integrated learning. Virtual learning environments and online conferencing tools enable a moreindividualized course design with the idea of anytime and anywhere. However, lessons learnt is ifonline learning fails in the inception phase, drop-out rates can be high and pass rates low. The aim ofthis paper is to present and discuss the support of the inception phase of online professionaldevelopment with the idea of emphasizing the CHIM steps.The four steps in this model are:1 Creating a common virtual space,2 Handshake,3 Initial teacher support,4 Mentorship.The research strategy has been the case study approach with 10 course modules in an ongoingprofessional development initiative as case units. Data were collected in a mix of interviews, onlinediscussions and email analyses. Patterns and themes from the various data sources have, after aninitial content analysis been compared according to the case study concept of triangulation.Furthermore, results were grouped into five categories, the four CHIM steps and a fifth miscellaneouscategory.Findings indicate that all the four CHIM steps are important for a successful outcome, and if some ofthe three first steps fail, the fourth will probably fail as well. The recommendation is that universitieshave to rethink the parts of the bureaucracy that are not transmedial, and cannot be carried out onlinewithout traditional face-to-face confirmation. Finally, the CHIM steps concept only involves theinception phase of online learning support and, even if the conclusion is to emphasise the importanceof the initial steps, the important future work is to extend the support model to handle the sustainablelong-term perspective.
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| 9. |
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| 10. |
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| 11. |
- Aaboud, M, et al.
(författare)
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Measurement of jet pT correlations in Pb + Pb and pp collisions at sNN=2.76 TeVwith the ATLAS detector
- 2017
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Ingår i: Physics Letters B. - : Elsevier BV. - 0370-2693 .- 1873-2445. ; 774, s. 379-402
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Tidskriftsartikel (refereegranskat)abstract
- Measurements of dijet pT correlations in Pb+Pb and pp collisions at a nucleon–nucleon centre-of-mass energy of sNN=2.76 TeV are presented. The measurements are performed with the ATLAS detector at the Large Hadron Collider using Pb+Pb and pp data samples corresponding to integrated luminosities of 0.14 nb−1 and 4.0 pb−1, respectively. Jets are reconstructed using the anti-kt algorithm with radius parameter values R=0.3 and R=0.4. A background subtraction procedure is applied to correct the jets for the large underlying event present in Pb+Pb collisions. The leading and sub-leading jet transverse momenta are denoted pT1 and pT2. An unfolding procedure is applied to the two-dimensional (pT1,pT2) distributions to account for experimental effects in the measurement of both jets. Distributions of (1/N)dN/dxJ, where xJ=pT2/pT1, are presented as a function of pT1 and collision centrality. The distributions are found to be similar in peripheral Pb+Pb collisions and pp collisions, but highly modified in central Pb+Pb collisions. Similar features are present in both the R=0.3 and R=0.4 results, indicating that the effects of the underlying event are properly accounted for in the measurement. The results are qualitatively consistent with expectations from partonic energy loss models. © 2017 The Author
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| 12. |
- Aaboud, M, et al.
(författare)
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Measurement of lepton differential distributions and the top quark mass in tt¯ production in pp collisions at √s=8 TeV with the ATLAS detector
- 2017
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Ingår i: European Physical Journal C. - : Springer Science and Business Media LLC. - 1434-6044 .- 1434-6052. ; 77:11
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Tidskriftsartikel (refereegranskat)abstract
- This paper presents single lepton and dilepton kinematic distributions measured in dileptonic tt¯ events produced in 20.2fb - 1 of s=8 TeV pp collisions recorded by the ATLAS experiment at the LHC. Both absolute and normalised differential cross-sections are measured, using events with an opposite-charge eμ pair and one or two b-tagged jets. The cross-sections are measured in a fiducial region corresponding to the detector acceptance for leptons, and are compared to the predictions from a variety of Monte Carlo event generators, as well as fixed-order QCD calculations, exploring the sensitivity of the cross-sections to the gluon parton distribution function. Some of the distributions are also sensitive to the top quark pole mass; a combined fit of NLO fixed-order predictions to all the measured distributions yields a top quark mass value of mtpole=173.2±0.9±0.8±1.2 GeV, where the three uncertainties arise from data statistics, experimental systematics, and theoretical sources. © 2017, CERN for the benefit of the ATLAS collaboration.
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| 13. |
- Aaboud, M, et al.
(författare)
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Measurements of top-quark pair differential cross-sections in the lepton+jets channel in pp collisions at √s=13 TeV using the ATLAS detector
- 2017
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Ingår i: Journal of High Energy Physics. - 1029-8479 .- 1126-6708. ; 2017:11
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Tidskriftsartikel (refereegranskat)abstract
- Measurements of differential cross-sections of top-quark pair production in fiducial phase-spaces are presented as a function of top-quark and tt¯ system kinematic observables in proton-proton collisions at a centre-of-mass energy of s=13 TeV. The data set corresponds to an integrated luminosity of 3.2 fb−1, recorded in 2015 with the ATLAS detector at the CERN Large Hadron Collider. Events with exactly one electron or muon and at least two jets in the final state are used for the measurement. Two separate selections are applied that each focus on different top-quark momentum regions, referred to as resolved and boosted topologies of the tt¯ final state. The measured spectra are corrected for detector effects and are compared to several Monte Carlo simulations by means of calculated χ2 and p-values. © 2017, The Author(s).
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| 14. |
- Aaboud, M, et al.
(författare)
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Search for Dark Matter Produced in Association with a Higgs Boson Decaying to b b Using 36 fb-1 of pp Collisions at s =13 TeV with the ATLAS Detector
- 2017
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Ingår i: Physical Review Letters. - 1079-7114 .- 0031-9007. ; 119:18
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Tidskriftsartikel (refereegranskat)abstract
- Several extensions of the standard model predict associated production of dark-matter particles with a Higgs boson. Such processes are searched for in final states with missing transverse momentum and a Higgs boson decaying to a bb pair with the ATLAS detector using 36.1 fb-1 of pp collisions at a center-of-mass energy of 13 TeV at the LHC. The observed data are in agreement with the standard model predictions and limits are placed on the associated production of dark-matter particles and a Higgs boson. © 2017 CERN, for the ATLAS Collaboration. Published by the American Physical Society.
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| 15. |
- Abdul Djalil, Muslim, et al.
(författare)
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The importance of entrepreneurial leadership in fostering bank performance
- 2023
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Ingår i: International Journal of Bank Marketing. - 0265-2323 .- 1758-5937. ; 41:4, s. 926-948
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Tidskriftsartikel (refereegranskat)abstract
- Purpose – This study investigates how entrepreneurial leadership fosters market orientation, bankinnovativeness and bank performance; it also investigates how market orientation contributes to brandorientation, bank innovativeness and bank performance.Design/methodology/approach – In total, 1500 questionnaires were distributed to 100 bank branches inIndonesia (500 to managers and 1000 to employees); 300 responses (20% response rate) were used for furtherstatistical analysis.Findings – The results confirmed the existence of relationships among entrepreneurial leadership, marketorientation, bank innovativeness, brand orientation and bank performance. The role of entrepreneurialleadership in fostering market orientation, bank innovativeness, brand orientation and bank performancedemonstrates that leaders can motivate employees to complete their tasks.Practical implications – The findings suggest that entrepreneurial leadership, new ideas and innovativeproducts and services can foster bankperformance.Originality/value – The emerging banking industry in Indonesia has witnessed changing market conditions.Banks will benefit from being more market-driven and diverse in their customer relationships togenerate value.
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| 16. |
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| 17. |
- Abikari, Masoome, et al.
(författare)
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Negative emotions and consumer behavioural intention to adopt emerging e-banking technology
- 2023
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Ingår i: Journal of Financial Services Marketing. - : Springer Nature. - 1363-0539 .- 1479-1846. ; 28:4, s. 691-704
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Tidskriftsartikel (refereegranskat)abstract
- Successful implementation of e-banking technology depends on how consumers perceive the technology and how likely they are to adopt it. Although several studies have analysed the impact of some specific negative emotions, few studies examine a broad range of consumers’ negative emotions (i.e. both deterrence and loss emotions) arising from appraisals of e-banking technology. This study investigates the possible relationships between deterrence and loss emotions, and consumers’ behavioural intention to adopt emerging e-banking technology. Based on the unified theory of acceptance and use of technology, partial least squares structural equation modelling was used to analyse a conceptual model and related hypotheses. The empirical evidence draws attention to the relationship between loss emotions and consumers’ behavioural intention to adopt emerging e-banking technology through effort expectancy and performance expectancy, respectively.
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| 18. |
- Abikari, Masoome
(författare)
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Young consumers’ emotions towards emerging e-banking technology : A multi-perspective approach
- 2024
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Licentiatavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Banks appear to be interested in enhancing their effectiveness and efficiency by developing e-banking technology, i.e., the provision of banking products and services through electronic channels. However, the successful implementation of e-banking technology depends on how consumers perceive such technology and how they are probably provoked to adopt it. Considering emerging e-banking technologies, knowledge of the salient influential factors affecting consumer adoption is crucial for banks. Studies have analysed these factors from different perspectives, such as attribute- and barrier-based perspectives. Attribute-based factors pertain to the perceived or expected characteristics of e-banking technology, whereas barrier-based factors refer to factors that can hinder or delay the adoption of e-banking technology. Despite the absence of consensus on these factors, there is a predominant focus on the functional aspects of this technology, often neglecting the emotional experience of consumers. Consumers’ emotions in the e-banking context mainly refer to hedonic motivation, defined as positive emotions such as fun, pleasure, and enjoyment arising from the usage of e-banking technology. While examining hedonic motivation has provided valuable insights into the adoption of such technology, further studies are required to examine the relationship among consumers’ emotions, particularly negative ones arising from different kinds of appraisals. Accordingly, this thesis aims to examine the influence of consumers’ emotions towards emerging e-banking technology on their intention to adopt such technology, with a specific emphasis on negative emotions from attribute and barrier-based perspectives. Applying Structural equation modelling (SEM), the empirical results draw attention to the influential role of different types of negative emotions in the adoption of emerging e-banking technology. From the attribute-based perspective, the empirical results demonstrate an association between loss emotions and consumers’ behavioural intention to adopt emerging e-banking technology, through effort expectancy and performance expectancy. From a barrier-based perspective, the results indicate that deterrence emotions can be positively associated with consumers’ perceived risk. This, in turn, influences their behavioural intention to adopt emerging e-banking technology. The results also reveal the influence of deterrence emotions on consumers’ perceived risk, even in the presence of positive emotions. These results suggest the importance of considering various categories of negative emotions when examining consumers’ intention to adopt emerging e-banking technology.
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| 19. |
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| 20. |
- Abulaiti, Yiming, et al.
(författare)
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Determination of the strong coupling constant alpha(s) from transverse energy-energy correlations in multijet events at root s=8 TeV using the ATLAS detector
- 2017
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Ingår i: European Physical Journal C. - : Springer Science and Business Media LLC. - 1434-6044 .- 1434-6052. ; 77:12
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Tidskriftsartikel (refereegranskat)abstract
- Measurements of transverse energy-energy correlations and their associated asymmetries in multi-jet events using the ATLAS detector at the LHC are presented. The data used correspond to vs = 8 TeV proton-proton collisions with an integrated luminosity of 20.2 fb(-1). The results are presented in bins of the scalar sum of the transverse momenta of the two leading jets, unfolded to the particle level and compared to the predictions from Monte Carlo simulations. A comparison with next-to-leading-order perturbative QCD is also performed, showing excellent agreement within the uncertainties. From this comparison, the value of the strong coupling constant is extracted for different energy regimes, thus testing the running of alpha(s)(mu) predicted in QCD up to scales over 1 TeV. A global fit to the transverse energy-energy correlation distributions yields alpha(s)(m(Z)) = 0.1162 +/- 0.0011 (exp.)(-0.0070)(+0.0084) (theo.), while a global fit to the asymmetry distributions yields a value of alpha(s)(m(Z)) = 0.1196 +/- 0.0013 (exp.)(-0.0045)(+0.0075) (theo.).
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| 21. |
- Abulaiti, Yiming, et al.
(författare)
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Femtoscopy with identified charged pions in proton-lead collisions at root s(NN)=5.02 TeV with ATLAS
- 2017
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Ingår i: Physical Review C. - : American Physical Society. - 2469-9985 .- 2469-9993. ; 96:6
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Tidskriftsartikel (refereegranskat)abstract
- Bose-Einstein correlations between identified charged pions are measured for p+Pb collisions at root s(NN) = 5.02 TeV using data recorded by the ATLAS detector at the CERN Large Hadron Collider corresponding to a total integrated luminosity of 28 nb(-1). Pions are identified using ionization energy loss measured in the pixel detector. Two-particle correlation functions and the extracted source radii are presented as a function of collision centrality as well as the average transverse momentum (k(T)) and rapidity (y*(pi pi)) of the pair. Pairs are selected with a rapidity -2 < y*(pi pi) < 1 and with an average transverse momentum 0.1 < k(T) < 0.8 GeV. The effect of jet fragmentation on the two-particle correlation function is studied, and a method using opposite-charge pair data to constrain its contributions to the measured correlations is described. The measured source sizes are substantially larger in more central collisions and are observed to decrease with increasing pair k(T). A correlation of the radii with the local charged-particle density is demonstrated. The scaling of the extracted radii with the mean number of participating nucleons is also used to compare a selection of initial-geometry models. The cross term R-ol is measured as a function of rapidity, and a nonzero value is observed with 5.1 sigma combined significance for -1 < y*pi pi < 1 in the most central events.
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| 22. |
- Abulaiti, Yiming, et al.
(författare)
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Measurement of jet fragmentation in Pb plus Pb and pp collisions at root s(NN)=2.76 TeV with the ATLAS detector at the LHC
- 2017
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Ingår i: European Physical Journal C. - : Springer Science and Business Media LLC. - 1434-6044 .- 1434-6052. ; 77:6
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Tidskriftsartikel (refereegranskat)abstract
- The distributions of transverse momentum and longitudinal momentum fraction of charged particles in jets are measured in Pb+Pb and pp collisions with the ATLAS detector at the LHC. The distributions are measured as a function of jet transverse momentum and rapidity. The analysis utilises an integrated luminosity of 0.14 nb(-1) of Pb+Pb data and 4.0 pb(-1) of pp data collected in 2011 and 2013, respectively, at the same centre-of-mass energy of 2.76 TeV per colliding nucleon pair. The distributions measured in pp collisions are used as a reference for those measured in Pb+Pb collisions in order to evaluate the impact on the internal structure of jets from the jet energy loss of fast partons propagating through the hot, dense medium created in heavy-ion collisions. Modest but significant centrality-dependent modifications of fragmentation functions in Pb+Pb collisions with respect to those in pp collisions are seen. No significant dependence of modifications on jet p(T) and rapidity selections is observed except for the fragments with the highest transverse momenta for which some reduction of yields is observed for more forward jets.
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| 23. |
- Abulaiti, Yiming, et al.
(författare)
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Measurement of multi-particle azimuthal correlations in pp, p plus Pb and low-multiplicity Pb plus Pb collisions with the ATLAS detector
- 2017
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Ingår i: European Physical Journal C. - : Springer Science and Business Media LLC. - 1434-6044 .- 1434-6052. ; 77:6
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Tidskriftsartikel (refereegranskat)abstract
- Multi-particle cumulants and corresponding Fourier harmonics are measured for azimuthal angle distributions of charged particles in pp collisions at root S = 5.02 and 13 TeV and in p + Pb collisions at root S-NN = 5.02 TeV, and compared to the results obtained for low-multiplicity Pb + Pb collisions at root S-NN = 2.76 TeV. These measurements aim to assess the collective nature of particle production. The measurements of multi-particle cumulants confirm the evidence for collective phenomena in p + Pb and low-multiplicity Pb + Pb collisions. On the other hand, the pp results for four-particle cumulants do not demonstrate collective behaviour, indicating that they may be biased by contributions from non-flow correlations. A comparison of multi-particle cumulants and derived Fourier harmonics across different collision systems is presented as a function of the charged-particle multiplicity. For a given multiplicity, the measured Fourier harmonics are largest in Pb + Pb, smaller in p + Pb and smallest in pp collisions. The pp results show no dependence on the collision energy, nor on the multiplicity.
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| 24. |
- Abulaiti, Yiming, et al.
(författare)
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Measurement of the cross-section for electroweak production of dijets in association with a Z boson in pp collisions at root s=13 TeV with the ATLAS detector
- 2017
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Ingår i: Physics Letters B. - : Elsevier BV. - 0370-2693 .- 1873-2445. ; 775, s. 206-228
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Tidskriftsartikel (refereegranskat)abstract
- The cross-section for the production of two jets in association with a leptonically decaying Z boson (Zjj) is measured in proton-proton collisions at a centre-of-mass energy of 13 TeV, using data recorded with the ATLAS detector at the Large Hadron Collider, corresponding to an integrated luminosity of 3.2 fb(-1). The electroweak Zjj cross-section is extracted in a fiducial region chosen to enhance the electroweak contribution relative to the dominant Drell-Yan Zjj process, which is constrained using a data-driven approach. The measured fiducial electroweak cross-section is sigma(Zjj)(EW) = 119 +/- 16 (stat.) +/- 20 (syst.) +/- 2 (lumi.) fb for dijet invariant mass greater than 250 GeV, and 34.2 +/- 5.8 (stat.) +/- 5.5 (syst.) +/- 0.7 (lumi.) fb for dijet invariant mass greater than 1 TeV. Standard Model predictions are in agreement with the measurements. The inclusive Zjj cross-section is also measured in six different fiducial regions with varying contributions from electroweak and Drell-Yan Zjj production.
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| 25. |
- Abulaiti, Yiming, et al.
(författare)
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Measurement of the inclusive jet cross-sections in proton-proton collisions at root s=8 TeV with the ATLAS detector
- 2017
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Ingår i: Journal of High Energy Physics (JHEP). - : SPRINGER. - 1126-6708 .- 1029-8479. ; :9
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Tidskriftsartikel (refereegranskat)abstract
- Inclusive jet production cross-sections are measured in proton-proton collisions at a centre-of-mass energy of root s = 8 TeV recorded by the ATLAS experiment at the Large Hadron Collider at CERN. The total integrated luminosity of the analysed data set amounts to 20.2 fb(-1). Double-differential cross-sections are measured for jets defined by the anti-k(t) jet clustering algorithm with radius parameters of R = 0.4 and R = 0.6 and are presented as a function of the jet transverse momentum, in the range between 70 GeV and 2.5 TeV and in six bins of the absolute jet rapidity, between 0 and 3.0. The measured cross-sections are compared to predictions of quantum chromodynamics, calculated at next-to-leading order in perturbation theory, and corrected for non-perturbative and electroweak effects. The level of agreement with predictions, using a selection of different parton distribution functions for the proton, is quantified. Tensions between the data and the theory predictions are observed.
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