Large hadron collider constraints on some simple Z′ models for b→ sμ+μ- anomalies
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We examine current Large Hadron Collider constraints on some simple Z′ models that significantly improve on Standard Model fits to b→ sμ+μ- transition data. The models that we consider are the ‘third family baryon number minus second family lepton number’ (B3- L2) model and the ‘third family hypercharge’ model and variants. The constraints are applied on parameter regions of each model that fit the b→ sμ+μ- transition data and come from high-mass Drell–Yan di-muons and measurements of Standard Model processes. This latter set of observables place particularly strong bounds upon the parameter space of the B3- L2 model when the mass of the Z′ boson is less than 300 GeV.
Original language | English |
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Article number | 1126 |
Journal | European Physical Journal C |
Volume | 81 |
Issue number | 12 |
Number of pages | 10 |
ISSN | 1434-6044 |
DOIs | |
Publication status | Published - Dec 2021 |
Bibliographical note
Funding Information:
This work has been partially supported by STFC consolidated Grants ST/N000285/1, ST/P000681/1 and ST/T000694/1. This work has received funding from the European Union’s Horizon 2020 research and innovation programme as part of the Marie Skłodowska-Curie Innovative Training Network MCnetITN3 (Grant Agreement No. 722104). BCA thanks other members of the Cambridge Pheno Working Group for helpful interactions. We especially thank H Banks for helpful high-mass Drell–Yan di-lepton cross-section and limit comparisons in the model.
Publisher Copyright:
© 2021, The Author(s).
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