The role of the input scale in parton distribution analyses
Journal Article
·
· Physics Letters B
A first systematic study of the effects of the choice of the input scale in global determinations of parton distributions and QCD parameters is presented. It is shown that, although in principle the results should not depend on these choices, in practice a relevant dependence develops as a consequence of what is called procedural bias. This uncertainty should be considered in addition to other theoretical and experimental errors, and a practical procedure for its estimation is proposed. Possible sources of mistakes in the determination of QCD parameter from parton distribution analysis are pointed out.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- AC05-06OR23177
- OSTI ID:
- 1050206
- Report Number(s):
- JLAB-THY-12-1593; DOE/OR/23177-2320; TRN: US1204559
- Journal Information:
- Physics Letters B, Vol. 714, Issue 2-5
- Country of Publication:
- United States
- Language:
- English
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