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Let's consider theory of a complex scalar field $$\phi = \frac{1}{\sqrt{2}}(s+\imath p)$$ Is it true that under CPT transformations $s$ is a scalar field and $p$ is a pseudoscalar field?

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  • $\begingroup$ Yes. CPT is an anti-linear anti-unitary operator. $\endgroup$ – Prahar Mar 9 '15 at 13:18

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