# Search for dark photons from neutral meson decays in p+p and d+Au collisions at $\sqrt{s_{\rm{NN}}}$ =200 GeV

Abstract : The standard model (SM) of particle physics is spectacularly successful, yet the measured value of the muon anomalous magnetic moment (g−2)μ deviates from SM calculations by 3.6σ. Several theoretical models attribute this to the existence of a “dark photon,” an additional U(1) gauge boson, which is weakly coupled to ordinary photons. The PHENIX experiment at the Relativistic Heavy Ion Collider has searched for a dark photon, U, in π0,η→γe+e− decays and obtained upper limits of O(2×10−6) on U−γ mixing at 90% C.L. for the mass range 30
Document type :
Journal articles

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Submitted on : Tuesday, May 26, 2015 - 11:36:11 AM
Last modification on : Thursday, December 16, 2021 - 2:11:21 PM

### Citation

A. Adare, S. Afanasiev, C. Aidala, N. N. Ajitanand, Y. Akiba, et al.. Search for dark photons from neutral meson decays in p+p and d+Au collisions at $\sqrt{s_{\rm{NN}}}$ =200 GeV. Physical Review C, American Physical Society, 2015, 91 (3), pp.031901(R). ⟨10.1103/PhysRevC.91.031901⟩. ⟨in2p3-01155161⟩

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