While the Standard Model (SM) is well established experimentally, key questions remain unanswered, such as the nature of dark matter. These questions motivate many searches for new physics (NP), i.e. phenomena or particles beyond the SM.

Several NP scenarios contain long lived particles (LoLiPs), which would appear in the collider as displaced vertices or missing energy, depending on their lifetime.

Daphna Peimer, under the supervision of Abner Soffer, searched for one such LoLiP per electron-positron collision at the BABAR experiment and calculated constraints for relevant models. 

In our study we focus on NP scenarios in which two LoLiPs are produced. This dramatically reduces the background, making for a much more sensitive search in this scenario.

We present our simulation studies in preparation for an actual measurement.