Using ultraperipheral lead-lead collisions, a lepton-plus-tracks analysis could constrain the tau anomalous magnetic moment to -0.0080 < a_tau < 0.0046 at 68% CL, three times better than DELPHI.
Tagging Two-Photon Production at the LHC
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abstract
Tagging two-photon production offers a significant extension of the LHC physics programme. Effective luminosity of high-energy gamma-gamma collisions reaches 1% of the proton-proton luminosity and the standard detector techniques used for measuring very forward proton scattering should allow for a reliable extraction of interesting two-photon interactions. Particularly exciting is a possibility of detecting two-photon exclusive Higgs boson production at the LHC.
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New physics and tau $g-2$ using LHC heavy ion collisions
Using ultraperipheral lead-lead collisions, a lepton-plus-tracks analysis could constrain the tau anomalous magnetic moment to -0.0080 < a_tau < 0.0046 at 68% CL, three times better than DELPHI.