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

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

1994-11-09

arxiv.org/abs/hep-ph/9411256v2

Phys.Rev.Lett.74:3122-3125,1995

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, LaTeX, 4 figures in a uuencoded compressed postscript file. We add a comment on the possible kinetic mixing between

Scientific paper

10.1103/PhysRevLett.74.3122

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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