PT Journal
AU Aguilar-Saavedra, JA
   Bernabeu, J
   Mitsou, VA
   Segarra, A
TI The Z boson spin observables as messengers of new physics
SO European Physical Journal C
JI Eur. Phys. J. C
PY 2017
BP 234
EP 6pp
VL 77
IS 4
DI 10.1140/epjc/s10052-017-4795-8
LA English
AB We demonstrate that the eight multipole parameters describing the spin state of the Z boson are able to disentangle known Z production mechanisms and signals from new physics at the LHC. They can be extracted from appropriate asymmetries in the angular distribution of lepton pairs from the Z boson decay. The power of this analysis is illustrated by (1) the production of Z boson plus jets; (2) Z boson plus missing transverse energy; (3) W and Z bosons originating from the two-body decay of a heavy resonance.
ER