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

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• 作者：A.M. Iyer^a ; ^{abhishek@theory.tifr.res.in" class="auth_mail" title="E-mail the corresponding author} ; F. Mahmoudi^b ; ^c ; ¹ ; ^{nazila@cern.ch" class="auth_mail" title="E-mail the corresponding author} ; N. Manglani^d ; ^e ; ^{namratam@physics.mu.ac.in" class="auth_mail" title="E-mail the corresponding author} ; K. Sridhar^a ; ^{sridhar@theory.tifr.res.in" class="auth_mail" title="E-mail the corresponding author}
• 刊名：Physics Letters B
• 出版年：2016
• 出版时间：10 August 2016
• 年：2016
• 卷：759
• 期：Complete
• 页码：342-348
• 全文大小：439 K

文摘

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 (g_KK$g_{KK}$): one where it is produced in association with one or more hard jets. The cross-section for the g_KK$g_{KK}$ + 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 g_KK$g_{KK}$ masses in bulk-RS models.