11,004 research outputs found
Double real radiation corrections to gluon scattering at NNLO
We use the antenna subtraction method to isolate the double real radiation
infrared singularities present in the six-gluon tree-level process at
next-to-next-to-leading order. We show numerically that the subtraction term
correctly approximates the matrix elements in the various single and double
unresolved configurations.Comment: six pages, talk given at 10th DESY Workshop on Elementary Particle
Theory, Worlitz, 25-30 April 201
Infrared structure of jets at NNLO: QED-type contributions
The NNLO QCD corrections to the jets can be decomposed
according to their colour factors. Out of the seven colour factors, three are
of QED-type: , and . We use the antenna subtraction
method to compute these contributions, providing complete expressions for the
subtraction terms in and .Comment: Talk presented at Loops and Legs 2006, Eisenac
Mechanistic artefact explanation
One thing about technical artefacts that needs to be explained is how their physical make-up, or structure, enables them to fulfil the behaviour associated with their function, or, more colloquially, how they work. In this paper I develop an account of such explanations based on the familiar notion of mechanistic explanation. To accomplish this, I outline two explanatory strategies that provide two different types of insight into an artefact’s functioning, and show how human action inevitably plays a role in artefact explanation. I then use my own account to criticize other recent work on mechanistic explanation and conclude with some general implications for the philosophy of explanation.Keywords: Artefact; Technical function; Explanation; Levels of explanation; Mechanisms
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