TY - JOUR
T1 - Light-by-light scattering at future e+e- colliders
AU - Ellis, John
AU - Mavromatos, Nick E.
AU - Roloff, Philipp
AU - You, Tevong
N1 - Funding Information:
The work of JE and NEM was supported partly by STFC Grants ST/L000258/1 and ST/T000759/1. The work of JE was also supported partly by the Estonian Research Council via a Mobilitas Pluss grant. TY is supported by a Branco Weiss Society in Science Fellowship and partially supported by STFC consolidated Grant ST/P000681/1. JE and NEM also acknowledge participation in the COST Association Action CA18108 “Quantum Gravity Phenomenology in the Multimessenger Approach (QG-MM)”.
Funding Information:
The work of JE and NEM was supported partly by STFC Grants ST/L000258/1 and ST/T000759/1. The work of JE was also supported partly by the Estonian Research Council via a Mobilitas Pluss grant. TY is supported by a Branco Weiss Society in Science Fellowship and partially supported by STFC consolidated Grant ST/P000681/1. JE and NEM also acknowledge participation in the COST Association Action CA18108 “Quantum Gravity Phenomenology in the Multimessenger Approach (QG-MM)”.
Publisher Copyright:
© 2022, The Author(s).
PY - 2022/7
Y1 - 2022/7
N2 - We study the sensitivity of possible CLIC and FCC-ee measurements of light-by-light scattering to old and new physics, including the Heisenberg–Euler Lagrangian in the Standard Model with possible contributions from loops of additional charged particles or magnetic monopoles, the Born–Infeld extension of QED, and effective dimension-8 operators involving four electromagnetic field strengths as could appear in the Standard Model Effective Field Theory. We find that FCC-ee measurements at 365 GeV and CLIC measurements at 350 GeV would be sensitive to new physics scales of half a TeV in the dimension-8 operator coefficients, and that CLIC measurements at 1.4 TeV or 3 TeV would be sensitive to new physics scales ∼ 2 TeV or 5 TeV at 95% CL, corresponding to probing loops of new particles with masses up to ∼ 3.7 TeV for large charges and/or multiple species. Within Born–Infeld theory, the 95 % CL sensitivities would range from ∼ 300 GeV to 1.3 or 2.8 TeV for the high-energy CLIC options. Measurements of light-by-light scattering would not exclude monopole production at FCC-hh, except in the context of Born–Infeld theory.
AB - We study the sensitivity of possible CLIC and FCC-ee measurements of light-by-light scattering to old and new physics, including the Heisenberg–Euler Lagrangian in the Standard Model with possible contributions from loops of additional charged particles or magnetic monopoles, the Born–Infeld extension of QED, and effective dimension-8 operators involving four electromagnetic field strengths as could appear in the Standard Model Effective Field Theory. We find that FCC-ee measurements at 365 GeV and CLIC measurements at 350 GeV would be sensitive to new physics scales of half a TeV in the dimension-8 operator coefficients, and that CLIC measurements at 1.4 TeV or 3 TeV would be sensitive to new physics scales ∼ 2 TeV or 5 TeV at 95% CL, corresponding to probing loops of new particles with masses up to ∼ 3.7 TeV for large charges and/or multiple species. Within Born–Infeld theory, the 95 % CL sensitivities would range from ∼ 300 GeV to 1.3 or 2.8 TeV for the high-energy CLIC options. Measurements of light-by-light scattering would not exclude monopole production at FCC-hh, except in the context of Born–Infeld theory.
UR - http://www.scopus.com/inward/record.url?scp=85134652769&partnerID=8YFLogxK
U2 - 10.1140/epjc/s10052-022-10565-w
DO - 10.1140/epjc/s10052-022-10565-w
M3 - Article
AN - SCOPUS:85134652769
SN - 1434-6044
VL - 82
JO - European Physical Journal C
JF - European Physical Journal C
IS - 7
M1 - 634
ER -