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Alexander Mitov

The wisdom of calculating higher-order perturbative corrections

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Recently I stumbled upon a post in a physics blog. I noticed the following comment there: "Admittedly, I find the perspective of a 'physics culture' that produces 'solid' Next-to-next-to-next-to-next-to leading order calculations somewhat depressing" referring to "a field that is several decades old, and hasn't seen very much novelty lately".

The post in question is about the US LHC Theory Initiative (I am its inaugural fellow); naturally that gave me the additional motivation to comment on a misconception I have witnessed numerous times before.

One can hardly argue that excesses are useful (anywhere). But I will argue that, at its core, higher order calculations are a field of solid depth and one that is becoming more and more likely to play a crucial role in the future of particle physics. On a personal level, I switched the focus of my research entirely to perturbative QCD applications from Model Building because I believe that currently this is the field where one can both ask and answer deep, experimentally relevant physics questions.

To get the point across, here are three not-well-known or appreciated in the wider community examples:

  1. The String Theory connection.
  2. The connection to Experiment: The Foundation of all Physics
  3. Developing perturbative QCD to the level of learning about non-perturbative physics (think confinement).

(to be continued)

Last Updated ( Saturday, 02 October 2010 17:53 )