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SUMMARY:The capacity of Constant Torsion Emergent Gravity to resolve cosm
 ological tensions - Sinah Legner (University of Cambridge)
DTSTART:20250211T111500Z
DTEND:20250211T120000Z
UID:TALK224677@talks.cam.ac.uk
CONTACT:Charles Walker
DESCRIPTION:Despite the success of the ΛCDM model in explaining a wide ra
 nge of cosmological phenomena\, observational discrepancies such as the Hu
 bble tension and curvature tension\, as well as theoretical challenges suc
 h as the inability to unify General Relativity with other fundamental forc
 es in particle physics\, have prompted a reevaluation of our current cosmo
 logical model and an exploration of other theories of gravity. We investig
 ate the constant torsion emergent gravity (CTEG) model\, a specific case o
 f Poincare Gauge Theory (PGT) of gravity. This model introduces two extra 
 cosmological parameters in addition to the six parameters in ΛCDM\, and c
 an be treated as a standard extension to ΛCDM with modified dark energy. 
 This modification is then implemented with CAMB and the constraints of the
  cosmological parameters of PGT is obtained through nested sampling using 
 Polychord and Cobaya. Our results offer a comparative analysis against the
  ΛCDM model\, looking at the possibility of CTEG to resolve key observati
 onal tensions.
LOCATION:Coffee area\, Battcock Centre
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