Saved in:
| Main Author: | |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2509.13759 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866914538225401856 |
|---|---|
| author | The ATLAS Collaboration |
| author_facet | The ATLAS Collaboration |
| contents | The angular distributions of Drell-Yan lepton pairs provide sensitive probes of the underlying dynamics of quantum chromodynamics (QCD) effects in vector-boson production. This paper presents for the first time the measurement of the full set of angular coefficients together with the differential cross-section as a function of the transverse momentum of the $W$ boson, in the full phase space of the decay leptons. The measurements are performed separately for the $W^-$ and $W^+$ channels. The analysis uses proton-proton collision data recorded by the ATLAS experiment at the Large Hadron Collider in 2017 and 2018, during special low-luminosity runs with a reduced number of interactions per bunch crossings (pile-up). The data correspond to an integrated luminosity of 338 pb$^{-1}$ at a centre-of-mass energy of $\sqrt{s}=$ 13 TeV. The low pile-up environment provides excellent experimental conditions for high-precision measurements of $W$-boson production. All results agree with theoretical predictions incorporating finite-order QCD corrections up to order $α_S^2$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_13759 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Measurement of the $W$-boson angular coefficients and transverse momentum in $pp$ collisions at $\sqrt{s}=$ 13 TeV with the ATLAS detector The ATLAS Collaboration High Energy Physics - Experiment The angular distributions of Drell-Yan lepton pairs provide sensitive probes of the underlying dynamics of quantum chromodynamics (QCD) effects in vector-boson production. This paper presents for the first time the measurement of the full set of angular coefficients together with the differential cross-section as a function of the transverse momentum of the $W$ boson, in the full phase space of the decay leptons. The measurements are performed separately for the $W^-$ and $W^+$ channels. The analysis uses proton-proton collision data recorded by the ATLAS experiment at the Large Hadron Collider in 2017 and 2018, during special low-luminosity runs with a reduced number of interactions per bunch crossings (pile-up). The data correspond to an integrated luminosity of 338 pb$^{-1}$ at a centre-of-mass energy of $\sqrt{s}=$ 13 TeV. The low pile-up environment provides excellent experimental conditions for high-precision measurements of $W$-boson production. All results agree with theoretical predictions incorporating finite-order QCD corrections up to order $α_S^2$. |
| title | Measurement of the $W$-boson angular coefficients and transverse momentum in $pp$ collisions at $\sqrt{s}=$ 13 TeV with the ATLAS detector |
| topic | High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2509.13759 |