Dark Portals at Light Masses

  • Starts: 3:30 pm on Thursday, April 20, 2023
  • Ends: 4:30 pm on Thursday, April 20, 2023
Though the Standard Model describes well almost all of the subatomic interactions we experience on Earth, observational evidence for dark matter demands that we expand the Standard Model to include new, yet unobserved particles. Ongoing efforts to search for these effects at the CERN Large Hadron Collider are often constrained to higher mass parameter spaces when probing for new particles, due to difficulties in saving enough events to resolve small signals with low momentum final state particles. This talk will describe a recent analysis done using data from the CMS detector, which uses a special high-rate data steam to probe for the existence of new particles at masses between 1 and 8 GeV, well below the typical range of masses for this type of search. The results of this search are used to constrain benchmark models that are candidates to act as mediators between the Standard Model fields and a potential "dark-sector" of matter which could resolve the discrepancies in astronomical data.
PRB 595
Chris Cosby
Boston University
David Sperka