An alternative way to decipher the nature of the doubly charmed tetraquark Tcc(3875)⁺: its antiparticle T_ c c(3875)⁻ photoproduction off nuclei near threshold

We study the inclusive photoproduction of T_ c c(3875)⁻ mesons (which are the antiparticles of the doubly charmed tetraquarks Tcc(3875)⁺ discovered recently by the LHCb Collaboration) from nuclei in the near-threshold energy region within the nuclear spectral function approach by considering incoherent direct (γp(n) → D⁺(D⁰)T_ c c(3875)⁻Λ⁺c) photon--nucleon T_ c c(3875)⁻ creation processes as well as five possible different scenarios for their internal structure with the main goal of clarifying the possibility to decipher this structure (and, hence, that of Tcc(3875)⁺) in photoproduction via integral and differential observables. We calculate the absolute and relative excitation functions for T_ c c(3875)⁻ production off ¹²C and ¹⁸⁴W target nuclei at near-threshold photon beam energies of 30--38 GeV, the absolute differential cross sections for their production off these target nuclei at laboratory polar angles of 0∘--10∘ as well as the A and momentum dependences of the relative (transparency ratios) cross sections for T_ c c(3875)⁻ production at photon energy of 35 GeV within the adopted scenarios for the T_ c c(3875)⁻ meson intrinsic structure. We demonstrate that the absolute and relative observables considered show a certain sensitivity to these scenarios. Therefore, the measurement of such observables in future experiments at the proposed high-luminosity electron-ion colliders EIC and EicC in the US and China in the near-threshold energy region might shed light on the Tcc(3875)⁺ internal structure.