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Light quark contributions to Higgs decays

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arxiv 2502.01668 v1 pith:KOG3VORV submitted 2025-02-01 hep-ph

classification hep-ph
keywords contributionsgammalightdecayshiggsquarkalthoughconclusion
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abstract

The literature establishes that the light fermions contributions to the decays $H\to Z\gamma$ and $H\to\gamma\gamma$ are negligible since their coupling with the Higgs is proportional to $m_f$. In the present letter, we show that although such a conclusion is true for leptons, the light quark contributions are zero when we consider their non-perturbative effects.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. On the contribution from the light quarks to $H\to\gamma\gamma , \gamma Z$

    hep-ph 2025-07 conditional novelty 6.0 of 10

    The light-quark contribution to H to gamma gamma and H to gamma Z is nonzero and linear in quark masses, with a large enhancement in the two-photon channel.

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