Physics at Virginia

"New technique(s) for mass measurement at hadron colliders"

Kaustubh Agashe , University of Maryland
[Host: Diana Vaman]
I will first analytically show a simple, yet subtle "invariance" of two-body decay kinematics for the case of a massless daughter and a mother particle which is unpolarized and has a generic boost distribution in the laboratory frame. Namely, the laboratory frame energy distribution of the massless decay product has a peak, whose location is identical to the (fixed) energy of that particle in the rest frame of the corresponding mother particle. As a proof of principle of the usefulness of this observation, I will then apply it for measuring the mass of the top quark at the LHC, using simulated data and including experimental effects. Finally, I will show how it can be used to measure all the superpartner masses in a cascade decay chain of the gluino.
High Energy Physics Seminar
Wednesday, November 7, 2012
3:30 PM
Physics Building, Room 204
Note special room.

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