New LHC-derived bounds and projected sensitivities are obtained for dimension-five Lorentz- and CPT-violating quark operators through Z-boson exchange in Drell-Yan production.
CPT, Strings, and Meson Factories
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abstract
Spontaneous breaking of CPT is possible in string theory. We show that it can arise at a level within reach of experiments at meson factories currently being built or designed. For $\phi$, $B$, and $\tau$-charm factories, we discuss the likely experimental string signatures and provide estimates of the bounds that might be attained in these machines.
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Signals of nonrenormalizable Lorentz and CPT violation at the LHC
New LHC-derived bounds and projected sensitivities are obtained for dimension-five Lorentz- and CPT-violating quark operators through Z-boson exchange in Drell-Yan production.