The Heavy Photon Search experiment: summary and recent developments for the 2019 Data Run

13 Jul 2021, 15:00
15m
Track K (Zoom)

Track K

Zoom

talk Dark Matter Dark Matter

Speaker

Alic Spellman (University of California, Santa Cruz)

Description

New physics beyond the Standard Model (SM) could be responsible for the presence of Dark Matter in the Universe. A hidden, or "dark", sector interacting with SM particles via new force carriers is a natural scenario to explain the features of Dark Matter. In the last decade, growing interest has been dedicated to the search for dark sectors with force carriers in the MeV-GeV mass range. A well motivated model envisions the presence of a $U(1)$ gauge boson, the heavy photon $A'$, whose existence can be probed with fixed-target experiments at accelerators.

The  Heavy  Photon  Search  Experiment  (HPS)  at  the Thomas Jefferson National Accelerator Facility (JLAB) searches  for heavy  photons and  other  new  force  carriers  that  are produced via  electro-production and decay visibly to electron-positron pairs. This talk presents recent developments in reconstruction and calibration of the 2019 Data Run at 4.55 GeV, including performance of the newly adopted Kalman Filter track reconstruction algorithm.

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Primary author

Alic Spellman (University of California, Santa Cruz)

Co-author

Pierfrancesco Butti (Stanford University)

Presentation materials