TESLA Technical Design Report, Part VI, Chapter 1: The Photon Collider at TESLA
B. Badelek, C. Blochinger, J. Blumlein, E. Boos, R. Brinkmann, H. Burkhardt, P. Bussey, C. Carimalo, J. Chyla, A. K. Ciftci, W. Decking, A. De Roeck, V. Fadin, M. Ferrario, A. Finch, H. Fraas, F. Franke, M. Galynskii, A. Gamp, I. Ginzburg, R. Godbole, D. S. Gorbunov, G. Gounaris, K. Hagiwara, L. Han, R. D. Heuer, C. Heusch, J. Illana, V. Ilyin, P. Jankowski, Yi Jiang, G. Jikia, L. Jonsson, M. Kalachnikow, F. Kapusta, R. Klanner, M. Klasen, K. Kobayashi, T. Kon, G. Kotkin, M. Kramer, M. Krawczyk, Y. P. Kuang, E. Kuraev, J. Kwiecinski, M. Leenen, M. Levchuk, W. F. Ma, H. Martyn, T. Mayer, M. Melles, D. J. Miller, S. Mtingwa, M. Muhlleitner, B. Muryn, P. V. Nickles, R. Orava, G. Pancheri, A. Penin, A. Potylitsyn, P. Poulose, T. Quast, P. Raimondi, H. Redlin, F. Richard, S. D. Rindani, T. Rizzo, E. Saldin, W. Sandner, H. Schonnagel, E. Schneidmiller, H. J. Schreiber, S. Schreiber, K. P. Schuler, V. Serbo, A. Seryi, R. Shanidze, W. Da Silva, S. Soldner-Rembold, M. Spira, A. M. Stasto, S. Sultansoy, T. Takahashi, V. Telnov, A. Tkabladze, D. Trines, A. Undrus, A. Wagner, N. Walker, I. Watanabe, T. Wengler, I. Will, S. Wipf, O. Yavas, K. Yokoya, M. Yurkov, A. F. Zarnecki, P. Zerwas, F. Zomer
TL;DR
The Photon Collider design for TESLA addresses extending the collider program to high-energy γγ and γe interactions by converting electrons to high-energy photons through Compton backscattering of laser light. The approach relies on precise laser systems, adaptive optics, and polarization control to shape the photon spectrum and maximize the high-energy peak; a second interaction region is required to host the γγ and γe collisions. The study highlights the key physics opportunities, including Higgs physics, SUSY scenarios, and measurements of the two-photon width, as well as the complementary cross sections compared to e^+e^- collisions. The work demonstrates substantial potential gains in discovery reach and precision, contingent on sophisticated laser/optics infrastructure and careful optimization of beam polarizations and collision geometry, with costs not included in the main TDR.
Abstract
TESLA Technical Design Report, Part VI, Chapter 1: The Photon Collider at TESLA