and execution of the search is summarized as follows:

1.  Events with two reconstructed jets at the hardware-based first level trigger (L1) are processed by a dedicated set of algorithms in the high-level trigger (HLT). From the jets and leptons reconstructed at the HLT level, the razor variables ${\ensuremath{M_R}\xspace}$ and ${\ensuremath{R^2}\xspace}$ are calculated and their values are used to determine whether to retain the event for further offline processing. A looser kinematic requirement is applied for events with electrons or muons, due to the smaller rate of SM background for these processes. The correspondence between the HLT and offline reconstruction procedures allows events of interest to be selected more efficiently than is possible with an inclusive multipurpose trigger.

2.  In the offline environment, leptons and jets are reconstructed, and a tagging algorithm is applied to identify those jets likely to have originated from a bottom-quark jet ($\cPqb$ jet).

3.  The reconstructed objects in each event are combined into two megajets, which are used to calculate the variables ${\ensuremath{M_R}\xspace}$ and ${\ensuremath{R^2}\xspace}$. Several baseline kinematic requirements are applied to reduce the number of misreconstructed events and to ensure that only regions of the razor plane where the trigger is efficient are selected.

