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Bootstrapping the a-anomaly in 4d QFTs

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The space of 4d quantum field theories (QFTs) can be thought of as the Renormalization Group flows between Conformal Field Theories (CFTs). The a-theorem tells us that CFTs can be ordered by their a-anomaly value. I will explain how one can use the (numerical) S-matrix bootstrap methods to search for the minimal allowed value of the a-anomaly.

This talk is part of the Quantum Fields and Strings Seminars series.

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