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Kaluza-Klein gluon + jets associated production at the Large Hadron Collider

Abstract : The Kaluza-Klein excitations of gluons offer the exciting possibility of probing bulk Randall-Sundrum (RS) models. In these bulk models either a custodial symmetry or a deformation of the metric away from AdS is invoked in order to deal with electroweak precision tests. Addressing both these models, we suggest a new channel in which to study the production of KK-gluons (gKK): one where it is produced in association with one or more hard jets. The cross-section for the gKK + jets channel is significant because of several contributing sub-processes. In particular, the 1-jet and the 2-jet associated processes are important because at these orders in QCD the qg and the gg initial states respectively come into play. We have performed a hadron-level simulation of the signal and present strategies to effectively extract the signal from what could potentially be a huge background. We present results for the kinematic reach of the LHC Run-II for different gKK masses in bulk-RS models.
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Contributor : Nathalie POTHIER Connect in order to contact the contributor
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A. M. Iyer, F. Mahmoudi, N. Manglani, K. Sridhar. Kaluza-Klein gluon + jets associated production at the Large Hadron Collider. Physics Letters B, 2016, 759, pp.342-348. ⟨10.1016/j.physletb.2016.05.090⟩. ⟨insu-03710574⟩



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