Constraints on the U ( 1 ) B − L model from global QCD analysis

Wang, X. G. (ORCID:0000000191640027); Hunt-Smith, N. T. (ORCID:000000030932870X); Melnitchouk, W. (ORCID:0000000295215973); Sato, N.; Thomas, A. W. (ORCID:000000030026499X)

doi:10.1103/physrevd.111.015019

DOE OSTI · 2504616

Constraints on the U ( 1 ) B − L model from global QCD analysis

Wang, X. G. (ORCID:0000000191640027)·Hunt-Smith, N. T. (ORCID:000000030932870X)·Melnitchouk, W. (ORCID:0000000295215973)·Sato, N.·Thomas, A. W. (ORCID:000000030026499X)

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Abstract

We perform the first global QCD analysis of electron-nucleon deep-inelastic scattering and related high-energy data including the beyond the Standard Model U ( 1 ) B − L gauge boson, Z ′ . Contrary to the dark photon case, we find no improvement in the χ 2 relative to the baseline result. The finding allows us to place exclusion limits on the coupling constant of the Z ′ with mass in the range M Z ′ = 2 to 160 GeV. Published by the American Physical Society 2025

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Wang, X. G. (ORCID:0000000191640027), Hunt-Smith, N. T. (ORCID:000000030932870X), Melnitchouk, W. (ORCID:0000000295215973), Sato, N., Thomas, A. W. (ORCID:000000030026499X). 2025-01-22. Constraints on the U ( 1 ) B − L model from global QCD analysis. https://doi.org/10.1103/physrevd.111.015019

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