01. project date 8/19/2011. Conceptual Studies for the π 0 Hadronic Calorimeter. Rob Macedo and Katya Gilbo Catholic University of America. Under the Direction of Dr. Tanja Horn. Paul the Pion. 02. Outline. Intro Goals/Motivations The π 0 Experiment Kinematics and Programming
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Conceptual Studies for the π0 Hadronic Calorimeter
Rob Macedo and Katya Gilbo
Catholic University of America
Under the Direction of Dr. Tanja Horn
Paul the Pion
We want a better understanding of our universe.
Pion decays into two photons. Angle between photons, photon energy and momentum can be measured using a calorimeter – giving us details about the pion.
Pion gains enough energy to become real, and is recoiled
Electron from electron beam emits a virtual photon, and is scattered. The Scattered electron’s angle, momentum and energy can be measured.
Proton is also recoiled
Proton surrounded by virtual pions
Ex. of GPDs
(so that we can identify the undetected proton in our experiment)
A Hadronic Calorimeter
We input in function:
Average: Hypothetical Values (Above)
Standard Deviation (for each): 0.1 GeV
Where do we go now?
1. Center of Mass (CM)- coordinate frame with zero net momentum, “frame from particle’s perspective”
2. Laboratory- coordinate frame with stationary proton target, “frame from detector’s perspectives”
where n is the index, p is density