We study the polarization of positively charged W's in the scattering of massive electroweak bosons at hadron colliders. We rely on the separation of weak boson polarizations in the gauge-invariant, doubly-resonant part of the amplitude in Monte Carlo simulations. Polarizations depend on the reference frame in which they are defined. We discuss the change in polarization fractions and in kinematic distributions arising from defining polarization vectors in two different reference frames which have been employed in recent experimental analyses.
Ballestrero, A., Maina, E., Pelliccioli, G. (2020). Different polarization definitions in same-sign WW scattering at the LHC. PHYSICS LETTERS. SECTION B, 811, 1-8 [10.1016/j.physletb.2020.135856].
Different polarization definitions in same-sign WW scattering at the LHC
Pelliccioli, Giovanni
2020
Abstract
We study the polarization of positively charged W's in the scattering of massive electroweak bosons at hadron colliders. We rely on the separation of weak boson polarizations in the gauge-invariant, doubly-resonant part of the amplitude in Monte Carlo simulations. Polarizations depend on the reference frame in which they are defined. We discuss the change in polarization fractions and in kinematic distributions arising from defining polarization vectors in two different reference frames which have been employed in recent experimental analyses.File | Dimensione | Formato | |
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Ballestrero-2020-Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics-VoR.pdf
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