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Freedom Now: A New Look at the Impulse Approximation

Politzer, H. David (1976) Freedom Now: A New Look at the Impulse Approximation. In: New Pathways in High-Energy Physics II: New Particles, Theories and Experiments. Studies in the Natural Sciences. Vol.11. No.11. Plenum , New York, NY, pp. 231-242. ISBN 978-1-4684-2927-5.

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Recent work on a field-theoretic impulse approximation is described. The operator product expansion is organized according to powers of g(Q2), the effective coupling constant appropriate to momentum transfer Q^2, instead of asymptotic dimensional analysis. This allows the calculation of all quark and target mass dependence of lepton-hadron inclusive scattering, order by order in g(Q^2). To O(g°), there is scaling in a mass dependent variable, ξ. The correct incorporation of quark masses into the renormalization group analysis is presented; the consequences include the relation of constituent masses to current algebra and the magnitude and shapes of the parton distribution functions for gluons, antiquarks, and heavy quarks.

Item Type:Book Section
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URLURL TypeDescription Chapter Chapter
Politzer, H. David0000-0002-4983-6621
Additional Information:© 1976 Plenum Press.
Series Name:Studies in the Natural Sciences
Issue or Number:11
Record Number:CaltechAUTHORS:20160922-112629491
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:70531
Deposited By: Joy Painter
Deposited On:30 Sep 2016 19:22
Last Modified:11 Nov 2021 04:30

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