Flavor constraints from $pp\to Vh$ and $pp\to VW$ at the LHC
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| Format: | Preprint |
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2025
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| _version_ | 1866916944694738944 |
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| author | Éboli, O. J. P. Leal, L. P. S. Martines, M. Sumensari, O. |
| author_facet | Éboli, O. J. P. Leal, L. P. S. Martines, M. Sumensari, O. |
| contents | We investigate the potential of associated Higgs $pp\to Vh$ and diboson production $pp\to VW$ channels at the LHC (with $V=W,Z$) to constrain flavor-physics operators. Within a general Effective Field Theory (EFT) framework, we derive the helicity amplitudes for these processes at high energies and identify the leading contributions from dimension-six operators involving different quark flavors. Using available LHC data, we show that these processes are sensitive to non-trivial flavor structures and provide complementary constraints to those from low-energy observables. We illustrate this synergy through an explicit comparison between our LHC bounds with electroweak precision data, and with flavor limits derived from charged-current pion and kaon decays. In particular, we show that our HL-LHC projections can probe viable EFT scenarios proposed to accommodate the discrepancies in the extraction of the Cabibbo angle. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2509_08437 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Flavor constraints from $pp\to Vh$ and $pp\to VW$ at the LHC Éboli, O. J. P. Leal, L. P. S. Martines, M. Sumensari, O. High Energy Physics - Phenomenology We investigate the potential of associated Higgs $pp\to Vh$ and diboson production $pp\to VW$ channels at the LHC (with $V=W,Z$) to constrain flavor-physics operators. Within a general Effective Field Theory (EFT) framework, we derive the helicity amplitudes for these processes at high energies and identify the leading contributions from dimension-six operators involving different quark flavors. Using available LHC data, we show that these processes are sensitive to non-trivial flavor structures and provide complementary constraints to those from low-energy observables. We illustrate this synergy through an explicit comparison between our LHC bounds with electroweak precision data, and with flavor limits derived from charged-current pion and kaon decays. In particular, we show that our HL-LHC projections can probe viable EFT scenarios proposed to accommodate the discrepancies in the extraction of the Cabibbo angle. |
| title | Flavor constraints from $pp\to Vh$ and $pp\to VW$ at the LHC |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2509.08437 |