79,133 research outputs found
The influence of the scene on linguistic expectations: Evidence from cross-model priming in visual worlds
- Numerous studies of utterance mediated gaze in visual scenes have demonstrated that sentence processing is not only incremental but also eager: During processing, listeners form expectations about upcoming arguments and make anticipatory eye movements to relevant displayed objects. - In particular, selectional information from verbs has been shown to guide visual attention to appropriate objects; upon hearing âthe boy will eatâ, listeners start looking at edible objects even before they are mentioned [1, 2]. - While these studies provide valuable insights into semantic processing, it is not clear whether anticipatory eye movements indeed reflect the purely linguistic activation of likely arguments or whether these anticipatory processes are influenced by the circumscribed visual context. - We present a German cross-modal priming experiment in which we examined listeners sensitivity to selectional restrictions between verbs and their object arguments
Testing coupling relations in SUSY-QCD at a Linear Collider
Supersymmetry predicts that gauge couplings are equal to the corresponding
gaugino-sfermion-fermion Yukawa couplings. This prediction can be tested for
the QCD sector of the MSSM by studying the processes eplus+eminus ->
squark+antisquark+gluon and eplus+eminus -> squark+antiquark+gluino at a future
linear collider. We present results for these processes at next-to-leading
order in alpha_s in the framework of the MSSM. We find sizable SUSY-QCD
corrections. The renormalization scale dependence is significantly reduced at
next-to-leading order.Comment: 8 pages, 10 figures. Talk at the 10th International Conference on
Supersymmetry and Unification of Fundamental Interactions (SUSY02), June
17-23, 2002, DESY Hamburg, to appear in the proceeding
Electroweak corrections to e+ e- -> nu anti-nu H and e+ e- -> t anti-t H
The most interesting Higgs-production processes at future e+ e- colliders
belong to the process class e+ e- -> f anti-f H. We study the full O(alpha)
corrections to this reaction in the Standard Model for neutrinos and top quarks
in the final state. Leading higher-order corrections from initial-state
radiation and QCD corrections are also taken into account. Although
cancellations between the different kinds of corrections occur, the full
corrections are of the order of +/-10% and thus important ingredients in the
theoretical predictions for future e+ e- colliders.Comment: 3 pages, LaTeX, 4 postscript figures, talk given at the EPS
conference, Aachen, 200
Electroweak radiative corrections to e+ e- -> t anti-t H
We have calculated the complete electroweak O(alpha) radiative corrections to
the Higgs-boson production process e+ e- -> t anti-t H in the electroweak
Standard Model. Initial-state radiation beyond O(alpha) is included in the
structure-function approach. The calculation of the corrections is briefly
described, and numerical results are presented for the total cross section.
Both the photonic and the genuine weak corrections reach the order of about 10%
or even more and show a non-trivial dependence on the Higgs-boson mass and on
the scattering energy. We compare our results with two previous calculations
that obtained differing results at high energies.Comment: 13 pages, LaTeX, 12 postscript figure
- âŠ