The authors investigate singularities of 2-point functions in CFTs at finite temperature as they appear in the holographic dual description, namely along null-geodesics in the bulk geometry. Finite temperature implies that the geometry of the holographic dual description is a rather involved one with black holes, however, the authors apply a number of clever approximations to compute string theory corrections (finite ‘t Hooft coupling ) for the propagators which ultimately resolve these singularities through tidal forces in the black hole geometry.
Matthew Dodelson and Hirosi Ooguri
Phys. Rev. D 103, 066018 (2021)
Electroweak symmetry breaking is a key feature of the Standard Model, and at high energies we should see “restoration” of the full symmetry. In this paper, the authors show how the channel can be used to observe this phenomenon at the LHC, effectively demonstrating the Goldstone Boson Equivalence Theorem in practice.
Li Huang, Samuel D. Lane, Ian M. Lewis, and Zhen Liu
Phys. Rev. D 103, 053007 (2021)
The imprint left on the cosmic microwave background (CMB) from CMB photons scattering off high-energy electrons in galaxies and clusters is known as the Sunyaev-Zel’dovich (SZ) effect and is the subject of these two papers from the Atacama Cosmology Telescope (ACT). ACT measurements combined with those of Planck and BOSS are shown to provide a rich picture of the electron gas thermodynamics of the galactic and cluster medium. This can be used to test and improve cosmological simulations relevant for upcoming experiments.
Stefania Amodeo et al.
Emmanuel Schaan et al. (Atacama Cosmology Telescope Collaboration)
Phys. Rev. D 103, 063513 (2021)