The following statements are from the paper with the above title, recommended in another(adsbygoogle = window.adsbygoogle || []).push({});

thread, are from here:

http://fds.oup.com/www.oup.co.uk/pdf/0-19-922719-5.pdf [Broken]

An interpretion of these statements would be appreciated:

1.[first paragraph, page 3] What is 'conservation of the number of particles'?? Am I supposed to expect that outcome?? ..a field is characterized by its values at all space points, which thus constitutes an infinite number of data. The non conservation of the number of particles in hgh energy collisions is a manifestation of such a property.

2.[second paragraph, page 3] ...Moreover the field theories that describe microscopic physics have a locality property, a notion that generalizes the notion of point like particles: they display no short distance structure.

What is 'short distance structure'...or the lack thereof?

3.Following these,still page 3, under the title 'Gauge Symmetries' a discussion ensues regarding non relativistic quantum mechanics but suddenly the final sentence switches to a relativistic interpretation of vector potential. What's happening here? Is the prior discussion

not relevant??

and following immediately in "Units of relativistic Quantum theory" we have this statement:

Is this considered 'relativistic'?? why would they not use ..in a relativistic theory mass scales M, momenta p and energies E can be related

by the speed of light c....E = Mc^{2}...

E^{2}= [pc]^{2}+ m^{2}c^{4}

or do you think they are just interested in 'units'??

4. Has anyone read the whole paper...IS it worthwhile??

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# Quantum field theory and the renormalization group

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