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"Another addition to the U(1) jungle"


Triparno Bandyopadhyay , University of Calcutta
[Host: P.Q. Hung]
ABSTRACT:

In a truly model independent approach we review the class of anomaly free U(1) extensions of the SM. Parametrising the extension in terms of three observable quantities, namely, MZ′, the Z-Z′ mixing angle (alphaZ) and the extra U(1) effective gauge coupling (g'), which absorb all model dependence, we proceed to draw exclusion contours in the parameter space. For the exclusion limits we use the latest LHC DY data, unitarity, and electron--muon-neutrino scattering data. The DY data turns out to be the most stringent, but the other two constraints have situational merits, as we discuss.

High Energy Physics Seminar
Monday, August 20, 2018
3:30 PM
Physics Building, Room 204
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