QCD effective charges and the structure function F2 at small-x: Higher twist effects
We consider the effect of higher twist operators of the Wilson operator product expansion in the structure function F2(x,Q2) at small-x, taking into account QCD effective charges whose infrared behavior is constrained by a dynamical mass scale. The higher twist corrections are obtained from the reno...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2020-05-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269320301544 |
| _version_ | 1818133200914874368 |
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| author | D. Hadjimichef E.G.S. Luna M. Peláez |
| author_facet | D. Hadjimichef E.G.S. Luna M. Peláez |
| author_sort | D. Hadjimichef |
| collection | DOAJ |
| description | We consider the effect of higher twist operators of the Wilson operator product expansion in the structure function F2(x,Q2) at small-x, taking into account QCD effective charges whose infrared behavior is constrained by a dynamical mass scale. The higher twist corrections are obtained from the renormalon formalism. Our analysis is performed within the conventional framework of next-to-leading order, with the factorization and renormalization scales chosen to be Q2. The infrared properties of QCD are treated in the context of the generalized double-asymptotic-scaling approximation. We show that the corrections to F2 associated with twist-four and twist-six are both necessary and sufficient for a good description of the deep infrared experimental data. Keywords: Nonperturbative QCD, Higher twist operators, Deep inelastic scattering |
| first_indexed | 2024-12-11T08:48:57Z |
| format | Article |
| id | doaj.art-14f293b403c6474ab5a570505f50b944 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 |
| language | English |
| last_indexed | 2024-12-11T08:48:57Z |
| publishDate | 2020-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-14f293b403c6474ab5a570505f50b9442022-12-22T01:14:04ZengElsevierPhysics Letters B0370-26932020-05-01804QCD effective charges and the structure function F2 at small-x: Higher twist effectsD. Hadjimichef0E.G.S. Luna1M. Peláez2Instituto de Física, Universidade Federal do Rio Grande do Sul, Caixa Postal 15051, 91501-970, Porto Alegre, RS, BrazilInstituto de Física, Universidade Federal do Rio Grande do Sul, Caixa Postal 15051, 91501-970, Porto Alegre, RS, Brazil; Instituto de Física, Facultad de Ingeniería, Universidad de la República, J.H. y Reissig 565, 11000 Montevideo, Uruguay; Corresponding author.Instituto de Física, Facultad de Ingeniería, Universidad de la República, J.H. y Reissig 565, 11000 Montevideo, UruguayWe consider the effect of higher twist operators of the Wilson operator product expansion in the structure function F2(x,Q2) at small-x, taking into account QCD effective charges whose infrared behavior is constrained by a dynamical mass scale. The higher twist corrections are obtained from the renormalon formalism. Our analysis is performed within the conventional framework of next-to-leading order, with the factorization and renormalization scales chosen to be Q2. The infrared properties of QCD are treated in the context of the generalized double-asymptotic-scaling approximation. We show that the corrections to F2 associated with twist-four and twist-six are both necessary and sufficient for a good description of the deep infrared experimental data. Keywords: Nonperturbative QCD, Higher twist operators, Deep inelastic scatteringhttp://www.sciencedirect.com/science/article/pii/S0370269320301544 |
| spellingShingle | D. Hadjimichef E.G.S. Luna M. Peláez QCD effective charges and the structure function F2 at small-x: Higher twist effects Physics Letters B |
| title | QCD effective charges and the structure function F2 at small-x: Higher twist effects |
| title_full | QCD effective charges and the structure function F2 at small-x: Higher twist effects |
| title_fullStr | QCD effective charges and the structure function F2 at small-x: Higher twist effects |
| title_full_unstemmed | QCD effective charges and the structure function F2 at small-x: Higher twist effects |
| title_short | QCD effective charges and the structure function F2 at small-x: Higher twist effects |
| title_sort | qcd effective charges and the structure function f2 at small x higher twist effects |
| url | http://www.sciencedirect.com/science/article/pii/S0370269320301544 |
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