Mixed top-bottom squark production at the LHC

Details Mixed top-bottom squark production at the LHC Mixed top-bottom squark production at the LHC

2005-06-24

arxiv.org/abs/hep-ph/0506261v2

Phys.Rev.D72:075003,2005

Physics

High Energy Physics

High Energy Physics - Phenomenology

typo corrected, comment on W-associated channel added, version to appear in PRD

Scientific paper

10.1103/PhysRevD.72.075003

We calculate cross sections for mixed stop-sbottom pair production at the LHC, analogous to single-top production, a weak process involving the W-t(i)-b(j) vertex. While coupling-suppressed relative to QCD same-flavor squark pair production, the signal is distinctive due to heavy-flavor tagging along with a possible same-sign lepton pair in the final state. SUSY backgrounds can often be suppressed many orders of magnitude by taking advantage of distinct kinematic differences from the signal. Measuring the rate of this process would add significant additional information to that gathered from other SUSY processes. If the stop and sbottom mixings can be determined elsewhere, stop-sbottom production would provide for a measurement of the weak squark gauge coupling and super-CKM vertex factor.

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