Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2008-09-18
Phys.Rev.D79:015005,2009
Physics
High Energy Physics
High Energy Physics - Phenomenology
22 pages, 6 figures, 3 tables, typos corrected
Scientific paper
10.1103/PhysRevD.79.015005
We present a proposal for performing model-independent jets plus missing energy searches. Currently, these searches are optimized for mSUGRA and are consequently not sensitive to all kinematically-accessible regions of parameter space. We show that the reach of these searches can be broadened by setting limits on the differential cross section as a function of the total visible energy and the missing energy. These measurements only require knowledge of the relevant Standard Model backgrounds and can be subsequently used to limit any theoretical model of new physics. We apply this approach to an example where gluinos are pair-produced and decay to the LSP through a single-step cascade, and show how sensitivity to different gluino masses is altered by the presence of the decay chain. The analysis is closely based upon the current searches done at the Tevatron and our proposal requires only small modifications to the existing techniques. We find that within the MSSM, the gluino can be as light as 125 GeV. The same techniques are applicable to jets and missing energy searches at the Large Hadron Collider.
Alwall Johan
Le My Phuong
Lisanti Mariangela
Wacker Jay G.
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