Bottom quark electroweak dipole moments at a high-energy μ−collider
Abstract
We study the sensitivity of a high-energy μ−collider with center of mass energy in the multi--TeV range in testing electroweak dipole interactions of the b−quark. We parametrize the relevant deformations in the language of the Standard Model effective field theory, where the dominant modifications arise at the d=6 level. We analyse μ+ μ- → b b̅ and μ+ μ- → b b̅ h scatterings, performing a study at the level of a fast detector simulation. Owing the chiral structure of the dipole interaction, the study of the μ+ μ- → b b̅ h process allows to enforce the stronger bounds on the Wilson coefficients of the d=6 operators. The limits that can be obtained surpass present and future bounds from EW precision measurements also improving upon the ones arising from the measurement of the ΔF=1 transitions B→ Xsγ.
Related
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BibTeX
@misc{barducci2026bottom,
title = {{Bottom quark electroweak dipole moments at a high-energy $μ-$collider}},
author = {D. Barducci},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2606.24410},
eprint = {2606.24410},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2606.24410},
}
RIS
TY - UNPB
TI - Bottom quark electroweak dipole moments at a high-energy μ−collider
AU - D. Barducci
PY - 2026
DA - 2026/10/01
PB - arXiv
DO - 10.48550/arxiv.2606.24410
UR - https://arxiv.org/abs/2606.24410
AB - We study the sensitivity of a high-energy μ−collider with center of mass energy in the multi--TeV range in testing electroweak dipole interactions of the b−quark. We parametrize the relevant deformations in the language of the Standard Model effective field theory, where the dominant modifications arise at the d=6 level. We analyse μ^+ μ^- → b b̅ and μ^+ μ^- → b b̅ h scatterings, performing a study at the level of a fast detector simulation. Owing the chiral structure of the dipole interaction, the study of the μ^+ μ^- → b b̅ h process allows to enforce the stronger bounds on the Wilson coefficients of the d=6 operators. The limits that can be obtained surpass present and future bounds from EW precision measurements also improving upon the ones arising from the measurement of the ΔF=1 transitions B→ X_sγ.
ER -