Probing the dark photon via polarized DIS scattering at the HERA and EIC

Abstract

The dark photon is widely predicted in many new physics beyond the Standard Model. In this work, we propose to utilize the polarized lepton cross section in neutral current DIS process at the HERA and upcoming Electron-Ion Collider (EIC) to probe the properties of the dark photon. It shows that we can constrain the mixing parameter $\epsilon <0.02$ when the dark photon mass $m_{A_D}<10\mathrm{GeV}$ at the HERA with polarized lepton beam and this bound is comparable to the limit from the unpolarized HERA data. With the help of high integrated luminosity and high electron beam polarization of the EIC, the upper limit of the $\epsilon$ could be further improved. Depending on the assumption of the systematic error of the cross section measurements, we obtain $\epsilon <0.01\sim 0.02$ for the mass region $m_{A_D}<10\mathrm{GeV}$ under the integrated luminosity of $300{\mathrm{fb}}^{-1}$. We also discuss the complementary roles between the cross section and the single-spin asymmetry measurements in probing the dark photon.

5 pages, 2 figures, the published version

References in corpus (5)

• Search for a dark photon in e+e- collisions at BABAR
• Search for light massive gauge bosons as an explanation of the $(g-2{)}_{\mu }$ anomaly at MAMI
• Mellin Moments of the {$O({\alpha }_s^3$)} Heavy Flavor Contributions to unpolarized Deep-Inelastic Scattering at $Q^2\gg m^2$ and Anomalous Dimensions
• Two-Loop Massive Operator Matrix Elements and Unpolarized Heavy Flavor Production at Asymptotic Values Q^2 >> m^2
• Search for light vector boson production in $e^{+}{e}^{-}\to {\mu }^{+}{\mu }^{-}\gamma$ interactions with the KLOE experiment

Cited by in corpus (16)

• Constraints on the dark photon from parity violation and the $W$ mass
• Heavy Neutral Leptons at the Electron-Ion Collider
• Dark Z at the International Linear Collider
• Displaced Signals of Hidden Vectors at the Electron-Ion Collider
• Dark photon effect on the rare kaon decay $K_L\to {\pi }^0\nu \bar{\nu }$
• Constraints on the dark sector from electroweak precision observables
• Precision three-dimensional imaging of nuclei using recoil-free jets
• N${}^3$LL + $\mathcal{O}({\alpha }_s^2)$ predictions of lepton-jet azimuthal angular distribution in deep-inelastic scattering
• Testing Lepton Flavor Universality at the Electron-Ion Collider
• Exploring dark $Z_d$-boson in future Large Hadron-electron collider
• Searching for the dark photon at the Future Circular Lepton Collider
• Probing top-quark electroweak couplings indirectly at the Electron-Ion Collider
• Relaxing constraints on a broad dark photon
• Relaxed constraints for dark matter with axial coupling to a dark photon
• Constraints on the $U(1{)}_{B-L}$ model from global QCD analysis
• Characterizing Dark Bosons at Chiral Belle