  The ongoing perplexing scenario with no hints of new physics at the Large
Hadron Collider can be elucidated amicably if the exotic particle spectrum in
many of the well-motivated theoretical models possesses degenerate mass. We
investigate the usefulness of different kinematic variables sensitive to the
compressed mass region, and propose a search strategy considering a
phenomenological supersymmetric scenario where the top squark undergoes a
four-body decay due to its extremely narrow mass difference with the lightest
supersymmetric particle. Considering a challenging but relatively clean
dileptonic decay channel, we demonstrate that one can effectively restrain the
significant background from the top quark, which provides a complementary
approach to the present CMS analysis. With the new strategic approach the
current limit can be extended to a phase-space region that was not explored
before.
