Colliders and ghosts: Constraining inflation with the parity-odd galaxy four-point function

  title={Colliders and ghosts: Constraining inflation with the parity-odd galaxy four-point function},
  author={Giovanni Cabass and Mikhail M. Ivanov and Oliver H. E. Philcox},
  journal={Physical Review D},
Could new physics break the mirror symmetry of the Universe? Utilizing recent measurements of the parity-odd four-point correlation function of BOSS galaxies, we probe the physics of inflation by placing constraints on the amplitude of a number of parity-violating models. Within canonical models of (single-field, slow-roll) inflation, no parity-asymmetry can occur; however, it has recently been shown that breaking of the standard assumptions can lead to parity violation within the Effective… 

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