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<p>We investigate the potential of associated Higgs <i>pp</i> → <i>Vh</i> and diboson production <i>pp</i> → <i>WV</i> channels at the LHC (with <i>V</i> = <i>W</i>, <i>Z</i>) to constrain flavor-physics operators. Within an 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.</p>

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Flavor constraints from pp → Vh and pp → WV at the LHC

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年3月4日

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  • O. J. P. Éboli,
  • L. P. S. Leal,
  • M. Martines,
  • O. Sumensari

摘要

We investigate the potential of associated Higgs pp → Vh and diboson production pp → WV channels at the LHC (with V = W, Z) to constrain flavor-physics operators. Within an 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.