نتایج جستجو برای: top event
تعداد نتایج: 324566 فیلتر نتایج به سال:
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We show that the angular distributions of leptons or jets due to tt spin correlations allow a determination of the top chromomagnetic moment κ with an accuracy of order 0.1. The method is quite insensitive to background, event reconstruction, and other experimental uncertainties. The total event number is important, so we suggest the inclusion of all-hadronic events. [email protected] kaku...
X iv : h ep - p h / 99 06 20 8 v 2 3 J un 1 99 9 New physics in tt spin correlations at the Tevatron
We show that the angular distributions of leptons or jets due to tt spin correlations allow a determination of the top chromomagnetic moment κ with an accuracy of order 0.1. The method is quite insensitive to background, event reconstruction, and other experimental uncertainties. The total event number is important, so we suggest the inclusion of all-hadronic events.
In this paper we present a global fit of beyond the Standard Model (BSM) dimension six operators relevant to the top quark sector to all currently available top production cross-section measurements, namely parton-level top-pair and single top production at the LHC and the Tevatron. Higher order QCD corrections are modelled using differential and global K-factors, and we use novel fast-fitting ...
class BaseElement attributes id : String operations -... end --BaseElement Listing 1 – BaseElement class definition The metaclass Process (see Fig. 6 and Listing 2) describes a sequence of Activities carry out in an organization with some specific objective. If a process interacts with other processes, it must participate in a Collaboration. A collaboration groups several participants. Each Par...
Boolean logic treats disjunction and conjunction symmetrically and algebraically. The corresponding operations for computation are respectively nondeterminism (choice) and concurrency. Petri nets treat these symmetrically but not algebraically, while event structures treat them algebraically but not symmetrically. Here we achieve both via the notion of an event space as a poset with all nonempt...
UseCase-wise Development, the introduction of functionality into an application in stages, with each stage being carried through to (ideally) implementation before the next is considered, is examined with a view to its being treated via an Event-B methodology. The need to modify top level behaviour in a non-skip way precludes its naive treatment via Event-B refinement, and paves the way for the...
We investigate the ep → μX event with high transverse momenta observed at HERA (H1) and show that this event could be interpreted as a signature of the single production of the scalar top quark in a supersymmetric model with R-parity breaking interactions. The event topology of the H1 event is rather characteristic and in fact it can be simulated by our specific scenario if we reasonably choose...
In this paper we summarize the status of Top Quark Physics and of searches for the Standard Model Higgs at the Tevatron. Results from both the CDF and D0 experiments are discussed and the prospects for the upcoming Run 2, in the year 2000, are outlined. Much work has been performed on these topics and due to the nature of these proceedings only a brief explanation can be ooered here. For more d...
Beer is one of the oldest alcoholic beverages and is produced by the fermentation of sugars derived from starches present in cereal grains. Contrary to lager beers, made by bottom-fermenting strains of Saccharomyces pastorianus, a hybrid yeast, ale beers are closer to the ancient beer type and are fermented by S. cerevisiae, a top-fermenting yeast. Here, we use population genomics to investigat...
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