Discriminating spin through quantum interference

Abstract

Many of the proposed solutions to the hierarchy and naturalness problems postulate new `partner' fields to the standard model particles. Determining the spins of these new particles will be critical in distinguishing among the various possible SM extensions, yet proposed methods rely on the underlying models. We propose a new model-independent method for spin measurements which takes advantage of quantum interference among helicity states. We demonstrate that this method will be able to discriminate scalar particles from higher spin states at the ILC, and discuss application to higher spins and possible uses at the LHC.

11 pages, 11 figures

References in corpus (3)

• Spin Analysis of Supersymmetric Particles
• Unravelling the sbottom spin at the CERN LHC
• Phenomenology of Universal Extra Dimensions

Cited by in corpus (9)

• A model independent spin analysis of fundamental particles using azimuthal asymmetries
• Using kinematic boundary lines for particle mass measurements and disambiguation in SUSY-like events with missing energy
• Precise reconstruction of sparticle masses without ambiguities
• A Review of Spin Determination at the LHC
• Determining Spin through Quantum Azimuthal-Angle Correlations
• Distinguishing spins in decay chains with photons at the Large Hadron Collider
• CP observables with spin-spin correlations in chargino production
• Complementarity of LHC and ILC
• Complementarity of the CERN Large Hadron Collider and the $e^{+}{e}^{-}$ International Linear Collider