| Seminar Date: | Tuesday, February 5, 2013 |
| Time: | 12:30 PM - 1:30 PM |
| Location: | Madrone |
| Abstract: | Interest in new physics models including so-called hidden sectors has increased in recent years as a result of anomalies from astrophysical observations. The Heavy Photon Search (HPS) experiment proposed at Jefferson Lab will look for a mediator of a new force, a GeV-scale massive U(1) vector boson, the Heavy Photon, which acquires a weak coupling to electrically charged matter through kinetic mixing. The HPS detector, a large acceptance forward spectrometer based on a dipole magnet, consists of a silicon tracker-vertexer, a lead-tungstate electromagnetic calorimeter, and a muon detector. HPS will search for the e+e- or mu+mu- decay of the Heavy Photon produced in the interaction of high energy electrons with a high-Z target, possibly with a displaced decay vertex. As a first stage, a test apparatus was designed, built and operated in the spring of 2012. The seminar will cover the proposed experiment and results from the test run. |
| Speaker: | Per Hansson - SLAC
 Per Hansson Adrian earned his Ph.D. from the Royal Institute of Technology, KTH, in Stockholm, Sweden in 2009, working on the D0 and ATLAS experiments. He joined the SLAC ATLAS group as a Research Associate to work on qualifying 3D silicon pixel sensors in test beams for the ATLAS IBL project. He has also been using simplified models in searches for Supersymmetry with heavy flavor final states at ATLAS, and was convenor of their b-jet trigger group. Since 2012, He has been a member of the Heavy Photon Search experiment at Jefferson Lab, which is his current focus. He has been involved in most aspects of the construction and commissioning of the silicon tracker, built at SLAC, for the HPS test and in the development towards a new detector for the next generation of the experiment.
|