Light dark bosons in the JUNO-TAO neutrino detector

Abstract

This work presents a sensitivity study of a reactor liquid scintillator detector to three kinds of dark bosons with masses below 1 MeV, such as dark photons, axion-like particles and light scalar bosons. The JUNO-TAO detector with Taishan nuclear reactor is taken as a reference. With proposed 180 days data taking, the sensitivity to the dark bosons can reach ∼ 10 −5 95%C.L. for the optimized signal to background ratio for the electron coupling constant gX through inverse Comptonlike scattering. The background systematic uncertainty presents as the main limiting factor for the further sensitivity improvement. Additionally the differential and the inverse differential cross sections have been derived for all three boson types and their interactions with electrons in liquid scintillator.

Search for invisible dark photon in $$\gamma e$$ scattering at future lepton colliders

“…As was already mentioned in Introduction, the DP production in the Compton-like γ e → A e process was studied in the fixed target experiments [79,80,82]. However, these low energy experiments were dealing with low mass DPs (m A < 100 MeV), while we examine heavy DPs (m A > 1 GeV).…”

“…The searches for the DP at e + e − colliders [73][74][75][76][77][78] (see also review papers [18][19][20][21][22][23][24][25]) have looked for its decays to the e + e − , μ + μ − and π + π − final states, as well as for invisible decays of A . The DP production in the Compton-like γ e → A e process is studied in [79,80]. The inverse process, A e → γ e, is recently considered in [81].…”

Search for invisible dark photon in $γe$ scattering at future lepton colliders

“…The searches for the DP at e + e − colliders [73]- [78] (see also review papers [18]- [25]) have looked for its decays to the e + e − , µ + µ − and π + π − final states, as well as for invisible decays of A ′ . The DP production in the Compton-like γe → A ′ e process is studied in [79,80]. The inverse process, A ′ e → γe, is recently considered in [81].…”