Student Recital: Jonathan Carr, Clarinet

Jonathan Carr is a student of Patti Carlson. This recital is given in partial fulfillment of the requirements for the Master of Music, Music Education degree. Jonathan Carr, clarinet Rebecca Raydo, pian

Student Recital: Mary Sensabaugh, Flute

Mary Sensabaugh is a student of Debra Cross. This recital is given in partial fulfillment of the requirements for the Bachelor of Music, Music Education degree. Mary Sensabaugh, flute Rebecca Raydo, pian

The HPS electromagnetic calorimeter

The Heavy Photon Search experiment (HPS) is searching for a new gauge boson, the so-called “heavy photon.” Through its kinetic mixing with the Standard Model photon, this particle could decay into an electron-positron pair. It would then be detectable as a narrow peak in the invariant mass spectrum of such pairs, or, depending on its lifetime, by a decay downstream of the production target. The HPS experiment is installed in Hall-B of Jefferson Lab. This article presents the design and performance of one of the two detectors of the experiment, the electromagnetic calorimeter, during the runs performed in 2015–2016. The calorimeter's main purpose is to provide a fast trigger and reduce the copious background from electromagnetic processes through matching with a tracking detector. The detector is a homogeneous calorimeter, made of 442 lead-tungstate (PbWO4) scintillating crystals, each read out by an avalanche photodiode coupled to a custom trans-impedance amplifier

Student Recital: Tracy James, Tenor

Tracy James is a student of Dr. Kelly Montgomery This recital is given in partial fulfillment of the requirements for the Bachelor of Music, Music Education degree. Tracy James, tenor Rebecca Raydo, pian