$\bar{\rm MS}$ parton densities with NNLO heavy flavor matching conditions
| dc.creator | Chuvakin, A. | |
| dc.creator | Smith, J. | |
| dc.date | 1999-11-27 | |
| dc.date | 1999-11-30 | |
| dc.date.accessioned | 2026-07-07T04:08:57Z | |
| dc.date.available | 2026-07-07T04:08:57Z | |
| dc.description | A study is made of charm and bottom flavor matching conditions on parton densities. Starting from an $\bar{\rm MS}$ three-flavor density set, where the scale $μ< m_c$, and using the recently derived two-loop matching conditions, we provide a new set of four-flavor parton densities where $ m_c \le μ< m_b$ and five-flavor densities where $μ\ge m_b$. The effect of the next-to-next-to-leading order matching conditions on the evolution equations is important for scales just above the transition regions. This includes the small $x$ and small $Q^2$ domain studied by the H1 and ZEUS experiments at HERA. At small $x$ the effects of the matching conditions never die away even for large $μ^2$. | |
| dc.description | Latex with thirty-five PostScript figures | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9911504 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9911504 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/49670 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | $\bar{\rm MS}$ parton densities with NNLO heavy flavor matching conditions | |
| dc.type | text |