Target mass corrections revisited

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Data
2006-05-01
Autores
Steffens, F. M.
Melnitchouk, W.
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American Physical Soc
Resumo
We propose a new implementation of target mass corrections to nucleon structure functions which, unlike existing treatments, has the correct kinematic threshold behavior at finite Q(2) in the x -> 1 limit. We illustrate the differences between the new approach and existing prescriptions by considering specific examples for the F-2 and F-L structure functions, and discuss the broader implications of our results, which call into question the notion of universal parton distribution at finite Q(2).
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Physical Review C. College Pk: American Physical Soc, v. 73, n. 5, 7 p., 2006.