SwePub
Tyck till om SwePub Sök här!
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "WFRF:(Knutsson M.) "

Sökning: WFRF:(Knutsson M.)

  • Resultat 1-10 av 253
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
1.
  • 2017
  • swepub:Mat__t
  •  
2.
  • Aad, G, et al. (författare)
  • 2015
  • swepub:Mat__t
  •  
3.
  • Aaron, F. D., et al. (författare)
  • Multi-leptons with high transverse momentum at HERA
  • 2009
  • Ingår i: Journal of High Energy Physics. - : Springer Science and Business Media LLC. - 1029-8479. ; :10
  • Tidskriftsartikel (refereegranskat)abstract
    • Events with at least two high transverse momentum leptons (electrons or muons) are studied using the H1 and ZEUS detectors at HERA with an integrated luminosity of 0.94 fb(-1). The observed numbers of events are in general agreement with the Standard Model predictions. Seven di- and tri-lepton events are observed in e(+)p collision data with a scalar sum of the lepton transverse momenta above 100 GeV while 1.94 +/- 0.17 events are expected. Such events are not observed in e(-)p collisions for which 1.19 +/- 0.12 are predicted. Total visible and differential di-electron and di-muon photoproduction cross sections are extracted in a restricted phase space dominated by photon-photon collisions.
  •  
4.
  • Aaron, F. D., et al. (författare)
  • Events with an isolated lepton and missing transverse momentum and measurement of W production at HERA
  • 2010
  • Ingår i: Journal of High Energy Physics. - 1029-8479. ; 2010:3, s. 1-19
  • Tidskriftsartikel (refereegranskat)abstract
    • A search for events containing an isolated electron or muon and missing trans verse momentum produced in e(+/-)p collisions is performed with the H1 and ZEUS detectors at HERA. The data were taken in the period 1994-2007 and correspond to an integrated luminosity of 0.98 fb(-1). The observed event yields are in good overall agreement with the Standard Model prediction, which is dominated by single W production. In the e(+)p data, at large hadronic transverse momentum P-T(X) > 25GeV, a total of 23 events are observed compared to a prediction of 14.0 +/- 1.9. The total single W boson production cross section is measured as 1.06 +/- 0.16 (stat.) +/- 0.07 (sys.) pb, in agreement with an Standard Model (SM) expectation of 1.26 +/- 0.19 pb.
  •  
5.
  • Aaron, F. D., et al. (författare)
  • Combined measurement and QCD analysis of the inclusive e(+/-)p scattering cross sections at HERA
  • 2010
  • Ingår i: Journal of High Energy Physics. - 1029-8479. ; :1
  • Tidskriftsartikel (refereegranskat)abstract
    • A combination is presented of the inclusive deep inelastic cross sections measured by the H1 and ZEUS Collaborations in neutral and charged current unpolarised e(+/-)p scattering at HERA during the period 1994-2000. The data span six orders of magnitude in negative four-momentum-transfer squared, Q(2), and in Bjorken x. The combination method used takes the correlations of systematic uncertainties into account, resulting in an improved accuracy. The combined data are the sole input in a NLO QCD analysis which determines a new set of parton distributions, HERAPDF1.0, with small experimental uncertainties. This set includes an estimate of the model and parametrisation uncertainties of the fit result.
  •  
6.
  • Delios, A., et al. (författare)
  • Examining the generalizability of research findings from archival data
  • 2022
  • Ingår i: Proceedings of the National Academy of Sciences of the United States of America. - : Proceedings of the National Academy of Sciences. - 0027-8424 .- 1091-6490. ; 119:30
  • Tidskriftsartikel (refereegranskat)abstract
    • This initiative examined systematically the extent to which a large set of archival research findings generalizes across contexts. We repeated the key analyses for 29 original strategic management effects in the same context (direct reproduction) as well as in 52 novel time periods and geographies; 45% of the reproductions returned results matching the original reports together with 55% of tests in different spans of years and 40% of tests in novel geographies. Some original findings were associated with multiple new tests. Reproducibility was the best predictor of generalizability-for the findings that proved directly reproducible, 84% emerged in other available time periods and 57% emerged in other geographies. Overall, only limited empirical evidence emerged for context sensitivity. In a forecasting survey, independent scientists were able to anticipate which effects would find support in tests in new samples. 
  •  
7.
  • Tierney, W., et al. (författare)
  • A creative destruction approach to replication : Implicit work and sex morality across cultures
  • 2021
  • Ingår i: Journal of Experimental Social Psychology. - : Elsevier BV. - 0022-1031 .- 1096-0465. ; 93
  • Tidskriftsartikel (refereegranskat)abstract
    • How can we maximize what is learned from a replication study? In the creative destruction approach to replication, the original hypothesis is compared not only to the null hypothesis, but also to predictions derived from multiple alternative theoretical accounts of the phenomenon. To this end, new populations and measures are included in the design in addition to the original ones, to help determine which theory best accounts for the results across multiple key outcomes and contexts. The present pre-registered empirical project compared the Implicit Puritanism account of intuitive work and sex morality to theories positing regional, religious, and social class differences; explicit rather than implicit cultural differences in values; self-expression vs. survival values as a key cultural fault line; the general moralization of work; and false positive effects. Contradicting Implicit Puritanism's core theoretical claim of a distinct American work morality, a number of targeted findings replicated across multiple comparison cultures, whereas several failed to replicate in all samples and were identified as likely false positives. No support emerged for theories predicting regional variability and specific individual-differences moderators (religious affiliation, religiosity, and education level). Overall, the results provide evidence that work is intuitively moralized across cultures.
  •  
8.
  • Aaron, F. D., et al. (författare)
  • A search for excited neutrinos in e(-) p collisions at HERA
  • 2008
  • Ingår i: Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics. - : Elsevier BV. - 0370-2693. ; 663:5, s. 382-389
  • Tidskriftsartikel (refereegranskat)abstract
    • A search for first generation excited neutrinos is performed using the full e(-) p data sample collected by the HI experiment at HERA at a centre-of-mass energy of 319 GeV, corresponding to a total luminosity of 184 pb(-1). The electroweak decays of excited neutrinos nu* -> nu gamma, v* -> nu Z and nu* -> eW with subsequent hadronic or leptonic decays of the W and Z bosons are considered. No evidence for excited neutrino production is found. Mass dependent exclusion limits on nu* production cross sections and on the ratio of the coupling to the compositeness scale f/boolean AND are derived within gauge mediated models. A limit on f/boolean AND A, independent of the relative couplings to the SU(2) and U(1) gauge bosons, is also determined. These limits extend the excluded region to higher masses than has been possible in previous excited neutrino searches. (c) 2008 Elsevier B.V. All rights reserved.
  •  
9.
  • Aaron, F. D., et al. (författare)
  • Measurement of diffractive scattering of photons with large momentum transfer at HERA
  • 2009
  • Ingår i: Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics. - : Elsevier BV. - 0370-2693. ; 672:3, s. 219-226
  • Tidskriftsartikel (refereegranskat)abstract
    • The first measurement of diffractive scattering of quasi-real photons with large momentum transfer gamma p -> gamma Y, where Y is the proton dissociative system, is made using the H1 detector at HERA. The measurement is performed for initial photon virtualities Q(2) < 0.01 GeV2. Single differential cross sections are Measured as a function of W, the incident photon-proton centre of mass energy, and t, the square of the four-momentum transferred at the proton vertex, in the range 175 < W < 247 GeV and 4 < |t| < 36 GeV2. The W dependence is well described by a model based on perturbative QCD using a leading logarithmic approximation of the BFKL evolution. The measured |t| dependence is harder than that predicted by the model and those observed in exclusive vector meson production. (C) 2009 Published by Elsevier B.V.
  •  
10.
  • Aaron, F. D., et al. (författare)
  • Measurement of the proton structure function F-L(x, Q(2)) at low x
  • 2008
  • Ingår i: Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics. - : Elsevier BV. - 0370-2693. ; 665:4, s. 139-146
  • Tidskriftsartikel (refereegranskat)abstract
    • A first measurement is reported of the longitudinal proton structure function FL(X, Q(2)) at the ep collider HERA. It is based on inclusive deep inelastic e(+)p scattering cross section measurements with a positron beam energy of 27.5 GeV and proton beam energies of 920, 575 and 460 GeV. Employing the energy dependence of the cross section, FL is measured in a range of squared four-momentum transfers 12 <= Q2 <=, 90 GeV2 and low Bjorken x 0.00024 <= x <= 0.0036. The F-L values agree with higher order QCD calculations based on parton densities obtained using cross section data previously measured at HERA. (C) 2008 Elsevier B.V. All rights reserved.
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 1-10 av 253
Typ av publikation
tidskriftsartikel (195)
konferensbidrag (33)
annan publikation (6)
forskningsöversikt (6)
bokkapitel (6)
rapport (3)
visa fler...
bok (1)
doktorsavhandling (1)
visa färre...
Typ av innehåll
refereegranskat (208)
övrigt vetenskapligt/konstnärligt (42)
populärvet., debatt m.m. (1)
Författare/redaktör
Bruncko, D. (71)
Diaconu, C. (71)
Andreev, V. (71)
Eckerlin, G. (71)
Favart, L. (71)
Cerny, K. (70)
visa fler...
Katzy, J. (70)
Klein, M. (70)
Meyer, J. (70)
Rizvi, E. (70)
South, D. (70)
Zhang, Z. (70)
Ferencei, J. (70)
Zhokin, A. (70)
Belousov, A. (70)
Boudry, V. (70)
Brisson, V. (70)
Bunyatyan, A. (70)
Buschhorn, G. (70)
Bystritskaya, L. (70)
Chekelian, V. (70)
Cvach, J. (70)
Delcourt, B. (70)
Dodonov, V. (70)
Dubak, A. (70)
Egli, S. (70)
Fedotov, A. (70)
Fleischer, M. (70)
Grab, C. (70)
Janssen, X. (70)
Bracinik, J. (69)
Mehta, A. (69)
Greenshaw, T. (69)
Lendermann, V. (69)
Lebedev, A. (69)
Levonian, S. (69)
Backovic, S. (69)
Barrelet, E. (69)
Bartel, W. (69)
Daum, K. (69)
Felst, R. (69)
Gabathuler, E. (69)
Gayler, J. (69)
Ghazaryan, S. (69)
Goerlich, L. (69)
Gogitidze, N. (69)
Henschel, H. (69)
Horisberger, R. (69)
Kapichine, M. (69)
Kiesling, C. (69)
visa färre...
Lärosäte
Lunds universitet (108)
Karolinska Institutet (55)
Uppsala universitet (36)
Mittuniversitetet (28)
Jönköping University (22)
Umeå universitet (20)
visa fler...
Stockholms universitet (20)
Kungliga Tekniska Högskolan (18)
Luleå tekniska universitet (18)
Linköpings universitet (17)
Göteborgs universitet (9)
RISE (6)
Malmö universitet (4)
Chalmers tekniska högskola (4)
Högskolan i Skövde (3)
Linnéuniversitetet (3)
Handelshögskolan i Stockholm (2)
Naturhistoriska riksmuseet (2)
Gymnastik- och idrottshögskolan (1)
Sveriges Lantbruksuniversitet (1)
visa färre...
Språk
Engelska (248)
Svenska (5)
Forskningsämne (UKÄ/SCB)
Naturvetenskap (106)
Medicin och hälsovetenskap (69)
Teknik (44)
Samhällsvetenskap (13)
Humaniora (2)

År

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy