# SUSY10

Aug 23 – 28, 2010
Bonn
Europe/Berlin timezone

## Spin Discrimination in Three-Body Decays

Aug 23, 2010, 3:08 PM
15m
Gr. Hörsaal Mathematik (Bonn)

Nussallee 12

### Speaker

Lisa Edelhäuser (Uni Würzburg)

### Description

The identification of the correct model for physics beyond the Standard Model requires the determination of the spin of new particles. We investigate to which extent the spin of a new particle $X$ can be identified in scenarios where this particle decays dominantly via three-body decays $X\rightarrow f\overline{f} Y$ where we assume that all intermediate particles are heavy and the particle $Y$ is a candidate for dark matter and escapes direct detection at a high energy collider such as the LHC. We develop a model-independent strategy based on the invariant mass distribution of the two SM-fermions $m_{ff}^2$ and show how spin assignments for $X$ and $Y$ can be supported or excluded independent of the couplings.

### Primary author

Lisa Edelhäuser (Uni Würzburg)

### Co-authors

Ritesh K. Singh (Uni Würzburg) Werner Porod (Uni Würzburg)

 Slides