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Understanding higher twist: operator approach to power corrections

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Zeitschrift für Physik C Particles and Fields

Abstract

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=σ L /R=σ T is predicted.

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Authors and Affiliations

  1. Department of Particle Physics, University of Santiago, E-15706, Santiago de Compostela, Spain

    J. L. Miramontes & J. Sánchez Guillén

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  1. J. L. Miramontes
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  2. J. Sánchez Guillén
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Miramontes, J.L., Sánchez Guillén, J. Understanding higher twist: operator approach to power corrections. Z. Phys. C - Particles and Fields 41, 247–257 (1988). https://doi.org/10.1007/BF01566923

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  • DOI: https://doi.org/10.1007/BF01566923

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