Confronting the vector leptoquark hypothesis with new low- and high-energy data
| Title: | Confronting the vector leptoquark hypothesis with new low- and high-energy data |
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| Authors: | Aebischer, Jason, Isidori, Gino, Pesut, Marko, Stefanek, Ben A., Wilsch, Felix |
| Publication Year: | 2022 |
| Collection: | High Energy Physics - Experiment High Energy Physics - Phenomenology |
| Subject Terms: | High Energy Physics - Phenomenology, High Energy Physics - Experiment |
| More Details: | In light of new data we present an updated phenomenological analysis of the simplified $U_1$-leptoquark model addressing charged-current $B$-meson anomalies. The analysis shows a good compatibility of low-energy data (dominated by the lepton flavor universality ratios $R_D$ and $R_{D^*}$) with the high-energy constraints posed by $pp\to \tau\bar\tau$ Drell-Yan data. We also show that present data are well compatible with a framework where the leptoquark couples with similar strength to both left- and right-handed third-generation fermions, a scenario that is well-motivated from a model building perspective. We find that the high-energy implications of this setup will be probed at the 95% confidence level in the high-luminosity phase of the LHC. Comment: 8 pages, 1 appendix, 5 figures. Fixes a bug with the old HFLAV average of RD and RD* & added new RD* data. Expanded appendix, results unchanged |
| Document Type: | Working Paper |
| DOI: | 10.1140/epjc/s10052-023-11304-5 |
| Access URL: | http://arxiv.org/abs/2210.13422 |
| Accession Number: | edsarx.2210.13422 |
| Database: | arXiv |
| DOI: | 10.1140/epjc/s10052-023-11304-5 |
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