2014/04/16 by Sean Tulin · 5 citations
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Low energy #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #hep-ex #hep-ph
paper · pdf · doi:10.1103/physrevd.89.114008
published as Phys. Rev. D 89, 114008 (2014) · 14 pages
arxiv created 2014/04/16 · openalex publication_date 2014/06/05 · arxiv updated 2014/06/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Is it possible to detect a new weakly coupled force at the QCD scale that interacts primarily with quarks? This work investigates experimental signatures of a new MeV--GeV gauge boson that couples to the baryon number, with attention to the 100 MeV--GeV mass range that is the regime of nonperturbative QCD. Such a state can be searched for in rare radiative decays of light mesons (\ensuremathη,\ensuremathη^\ensuremath',\ensuremathφ,\ensuremathω) as a \ensuremathπ0\ensuremathγ resonance, which is its leading decay mode from 140 to 620 MeV. This is a new discovery window for forces beyond the Standard Model that is not covered by existing dark photon searches.