Understanding higher twist: operator approach to power corrections

Autor:	J. Sanchez Guillen, J. L. Miramontes
Rok vydání:	1988
Předmět:	Physics Theoretical physics Physics and Astronomy (miscellaneous) Scale (ratio) Operator (physics) Quantum electrodynamics Transverse momentum Perturbative QCD Point (geometry) Twist Engineering (miscellaneous) Upper and lower bounds Power (physics)
Zdroj:	Zeitschrift für Physik C Particles and Fields. 41:247-257
ISSN:	1434-6052 0170-9739
DOI:	10.1007/bf01566923
Popis:	A thorough discussion of perturbative QCD for twist-4 is presented from a practical point of view. Misleading uses of intrinsic transverse momentum and mass terms are criticized and corrected in the complete expressions relevant for a model-independent experimental test of power corrections which is proposed. Upper and lower bounds for the twist-4 scale are deduced from a theoretically-consistent analysis of present DIS data with a simplified assumption on twist-4, from which a power-dominatedR=σL/R=σT is predicted.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0b1c40b70265103da4b13b30a7803360 https://doi.org/10.1007/bf01566923 Zobrazit plný text záznamu Full text from SpringerLink