On the positivity of MSbar parton distributions
Fuente:
arXiv
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| Hauptverfasser: | , , , |
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| Format: | Preprint |
| Veröffentlicht: |
2023
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| _version_ | 1866915948856868864 |
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| author | Candido, Alessandro Forte, Stefano Giani, Tommaso Hekhorn, Felix |
| author_facet | Candido, Alessandro Forte, Stefano Giani, Tommaso Hekhorn, Felix |
| contents | We revisit our argument that shows that parton distribution Functions (PDFs) in the MSbar{ scheme are non-negative in the perturbative region, with the main goals of elucidating its domain of validity and clarifying its theoretical underpinnings. We specifically discuss recent results proving that PDFs can turn negative at sufficiently low scale, we clarify quantitatively various aspects of our derivation of positivity in the perturbative region, and we provide an estimate for the scale above which PDF positivity holds. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2308_00025 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | On the positivity of MSbar parton distributions Candido, Alessandro Forte, Stefano Giani, Tommaso Hekhorn, Felix High Energy Physics - Phenomenology High Energy Physics - Experiment We revisit our argument that shows that parton distribution Functions (PDFs) in the MSbar{ scheme are non-negative in the perturbative region, with the main goals of elucidating its domain of validity and clarifying its theoretical underpinnings. We specifically discuss recent results proving that PDFs can turn negative at sufficiently low scale, we clarify quantitatively various aspects of our derivation of positivity in the perturbative region, and we provide an estimate for the scale above which PDF positivity holds. |
| title | On the positivity of MSbar parton distributions |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2308.00025 |