1999/05/27 by Xiao-Gang He · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #hep-ph
paper · pdf · doi:10.1103/physrevd.60.115017
published as Phys.Rev. D60 (1999) 115017 · Typos corrected and updated references, Rev-Tex, 11 pages with one figure
arxiv created 1999/05/27 · openalex publication_date 1999/11/12 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30
We show that new physics effects due to extra dimensions can dramatically affect Higgs pair production at photon colliders. We find that the cross section due to extra dimensions with the scale MS of new physics around 1.5 TeV can be as large as 0.11 pb (1.5 pb) for monochromatic photon collision, \ensuremathγ\stackrel\ensuremath→\ensuremathγHH, with the collider energy √(s)=0.5(1) TeV for a Higgs boson mass of 100 (350) GeV. The cross section can be 3 fb (2.7 fb) for the same parameters for collisions using photon beams from electron or positron back scattered by laser. These cross sections are much larger than those predicted in the standard model. Higgs pair production at photon colliders can provide useful tests for new physics due to extra dimensions.