Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2410.03876 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866909452019433472 |
|---|---|
| author | Guzzi, Marco Nadolsky, Pavel Reina, Laura Wackeroth, Doreen Xie, Keping |
| author_facet | Guzzi, Marco Nadolsky, Pavel Reina, Laura Wackeroth, Doreen Xie, Keping |
| contents | We present a methodology to streamline implementation of massive-quark radiative contributions in calculations with a variable number of active partons in proton-proton collisions. The methodology introduces \textit{subtraction} and \textit{residual} heavy-quark parton distribution functions (PDFs) to implement calculations in the Aivazis-Collins-Olness-Tung (ACOT) factorization scheme and its simplified realization in various processes up to the next-to-the-next-to-leading order in the QCD coupling strength. Interpolation tables for bottom-quark subtraction and residual distributions for CT18 NLO and NNLO PDF ensembles are provided in the common LHAPDF6 format. A numerical calculation of $Z$-boson production with at least one $b$ jet at the Large Hadron Collider beyond the lowest order in QCD is considered for illustration purposes. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_03876 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | General mass variable flavor number scheme for $Z$ boson production in association with a heavy quark at hadron colliders Guzzi, Marco Nadolsky, Pavel Reina, Laura Wackeroth, Doreen Xie, Keping High Energy Physics - Phenomenology We present a methodology to streamline implementation of massive-quark radiative contributions in calculations with a variable number of active partons in proton-proton collisions. The methodology introduces \textit{subtraction} and \textit{residual} heavy-quark parton distribution functions (PDFs) to implement calculations in the Aivazis-Collins-Olness-Tung (ACOT) factorization scheme and its simplified realization in various processes up to the next-to-the-next-to-leading order in the QCD coupling strength. Interpolation tables for bottom-quark subtraction and residual distributions for CT18 NLO and NNLO PDF ensembles are provided in the common LHAPDF6 format. A numerical calculation of $Z$-boson production with at least one $b$ jet at the Large Hadron Collider beyond the lowest order in QCD is considered for illustration purposes. |
| title | General mass variable flavor number scheme for $Z$ boson production in association with a heavy quark at hadron colliders |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2410.03876 |