Confronting the vector leptoquark hypothesis with new low- and high-energy data
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arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2022
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| _version_ | 1866910915694166016 |
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| author | Aebischer, Jason Isidori, Gino Pesut, Marko Stefanek, Ben A. Wilsch, Felix |
| author_facet | Aebischer, Jason Isidori, Gino Pesut, Marko Stefanek, Ben A. Wilsch, Felix |
| contents | 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 $pp\to τ\barτ$ 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2210_13422 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Confronting the vector leptoquark hypothesis with new low- and high-energy data Aebischer, Jason Isidori, Gino Pesut, Marko Stefanek, Ben A. Wilsch, Felix High Energy Physics - Phenomenology High Energy Physics - Experiment 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 $pp\to τ\barτ$ 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. |
| title | Confronting the vector leptoquark hypothesis with new low- and high-energy data |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2210.13422 |