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Possible Light U(1) Gauge Boson Coupled to Baryon Number

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arxiv hep-ph/9411256 v2 pith:LJVIU62K submitted 1994-11-09 hep-ph

Christopher D. Carone , Hitoshi Murayama (LBL) This is my paper · ORCID
classification hep-ph
keywords gaugegammaallowedalphabaryonbosonlightmass
verification ladder T0 review T1 audit T2 compute T3 formal
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abstract

We discuss the phenomenology of a light U(1) gauge boson, $\gamma_B$, that couples only to baryon number. We assume that the new U(1) gauge symmetry is spontaneously broken and that the $\gamma_B$ mass is smaller than $m_Z$. Nevertheless, we show that the model survives the current experimental constraints. In addition, we argue that evidence for the existence of such a particle could be hidden in existing LEP and Tevatron data. We determine the allowed regions of the $m_B$-$\alpha_B$ plane, where $m_B$ is the $\gamma_B$ mass, and where $4 \pi \alpha_B$ is the squared gauge coupling. We point out that in some parts of the allowed parameter space our model can account for rapidity gap events in proton-antiproton scattering seen at the Fermilab Tevatron.

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Cited by 3 Pith papers

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  1. WIMP-like Dark Matter Without Thermalization At Freeze-Out

    hep-ph 2026-05 unverdicted novelty 7.0 of 10

    Hidden-sector dark matter achieves standard thermal relic abundance via early decoupling with temperature-matched freeze-out, enabling WIMP-like cross sections without late-time thermalization.

  2. Quark-universal $U(1)$ breaking scalar at the LHC

    hep-ph 2025-06 conditional novelty 6.0 of 10

    In a quark-universal U(1)_B model, the scalar φ that breaks the symmetry can be discovered first through its diphoton decay, and its rate can explain the 95 GeV diphoton excess.

  3. Searching for hadronic scale baryonic and dark forces at $(g-2)_\mu$'s lattice-vs-dispersion front

    hep-ph 2024-12 conditional novelty 5.0 of 10

    A flavor-universal GeV-scale vector boson's direct contribution to (g-2)_mu cancels against its on-shell contribution to the e+e- -> hadrons data when the data-driven HVP is used, redirecting the search to the lattice...

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