# DPF 2011

8-13 August 2011
Rhode Island Convention Center
US/Eastern timezone

## A search for charged massive long-lived particles at D0

12 Aug 2011, 10:30
20m
Plenary Ballroom (Rhode Island Convention Center)

### Plenary Ballroom

#### Rhode Island Convention Center

Parallel contribution Beyond the Standard Model

### Speaker

Juliette Alimena (Department of Physics-Brown University)

### Description

We report on a search for charged massive long-lived particles (CMLLPs), based on 5.2 fb$^{-1}$ of data collected with the D0 detector at the Fermilab Tevatron $p\bar{p}$ collider. CMLLPs are predicted in many theories of physics beyond the Standard Model. We look for events in which one or more particles are reconstructed as muons but have speed and ionization energy loss $dE/dx$ inconsistent with muons produced in beam collisions. We present 95\% C.L. upper limits on the production cross section for $\tilde{\tau}$ and exclusion mass ranges for $\tilde{\chi}^{\pm}$ in two SUSY scenarios and for long-lived $\tilde{t}$ squarks.

### Primary author

Juliette Alimena (Department of Physics-Brown University)

 Slides