Perturbative generation of a strange-quark asymmetry in the nucleon
The perturbative evolution in QCD at three loops generates a stragne-antistrang asymmetry in the nucleons was analyzed. It was found that non-singlet evolution of the parton densities at three loops generates a strange asymmetry even if it was not present at the input scale. It was also observed tha...
Guardado en:
| Autor principal: | |
|---|---|
| Publicado: |
2004
|
| Materias: | |
| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v93_n15_p152003_Catani http://hdl.handle.net/20.500.12110/paper_00319007_v93_n15_p152003_Catani |
| Aporte de: |
| id |
paper:paper_00319007_v93_n15_p152003_Catani |
|---|---|
| record_format |
dspace |
| spelling |
paper:paper_00319007_v93_n15_p152003_Catani2023-06-08T14:58:42Z Perturbative generation of a strange-quark asymmetry in the nucleon de Florian, Daniel Enrique Green's function Integral equations Interpolation Mathematical models Parameter estimation Quantum theory Wave propagation Nucleon structures Nucleons Perturbative generation Quarks High energy physics The perturbative evolution in QCD at three loops generates a stragne-antistrang asymmetry in the nucleons was analyzed. It was found that non-singlet evolution of the parton densities at three loops generates a strange asymmetry even if it was not present at the input scale. It was also observed that the effect arises because at that order of perturbation theory the probability of splitting q → q-1 and became different from that of q → q-1 and because the nucleon has u and d valence densities. The results show that the asymmetries were smaller than in the strange sector, mostly due to the larger initial scale. Fil:De Florian, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2004 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v93_n15_p152003_Catani http://hdl.handle.net/20.500.12110/paper_00319007_v93_n15_p152003_Catani |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Green's function Integral equations Interpolation Mathematical models Parameter estimation Quantum theory Wave propagation Nucleon structures Nucleons Perturbative generation Quarks High energy physics |
| spellingShingle |
Green's function Integral equations Interpolation Mathematical models Parameter estimation Quantum theory Wave propagation Nucleon structures Nucleons Perturbative generation Quarks High energy physics de Florian, Daniel Enrique Perturbative generation of a strange-quark asymmetry in the nucleon |
| topic_facet |
Green's function Integral equations Interpolation Mathematical models Parameter estimation Quantum theory Wave propagation Nucleon structures Nucleons Perturbative generation Quarks High energy physics |
| description |
The perturbative evolution in QCD at three loops generates a stragne-antistrang asymmetry in the nucleons was analyzed. It was found that non-singlet evolution of the parton densities at three loops generates a strange asymmetry even if it was not present at the input scale. It was also observed that the effect arises because at that order of perturbation theory the probability of splitting q → q-1 and became different from that of q → q-1 and because the nucleon has u and d valence densities. The results show that the asymmetries were smaller than in the strange sector, mostly due to the larger initial scale. |
| author |
de Florian, Daniel Enrique |
| author_facet |
de Florian, Daniel Enrique |
| author_sort |
de Florian, Daniel Enrique |
| title |
Perturbative generation of a strange-quark asymmetry in the nucleon |
| title_short |
Perturbative generation of a strange-quark asymmetry in the nucleon |
| title_full |
Perturbative generation of a strange-quark asymmetry in the nucleon |
| title_fullStr |
Perturbative generation of a strange-quark asymmetry in the nucleon |
| title_full_unstemmed |
Perturbative generation of a strange-quark asymmetry in the nucleon |
| title_sort |
perturbative generation of a strange-quark asymmetry in the nucleon |
| publishDate |
2004 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00319007_v93_n15_p152003_Catani http://hdl.handle.net/20.500.12110/paper_00319007_v93_n15_p152003_Catani |
| work_keys_str_mv |
AT defloriandanielenrique perturbativegenerationofastrangequarkasymmetryinthenucleon |
| _version_ |
1768544676542939136 |