====== Composite Higgs and Top Partners ====== //If you are interested in contributing please subscribe to the [[https://e-groups.cern.ch/e-groups/EgroupsSearch.do?searchValue=houches-2015-topics-bsm-top-partners|Mailing list]]. You will be asked to log in with your CERN account. If you don't have a CERN account, please fill [[https://account.cern.ch/account/Externals/RegisterAccount.aspx|this form]] to create a lightweight account.// Topics of interest: * Impact of NLO effects on single vector-like quark (VLQ) production (forward tagging jet is a useful tool, how affected by NLO)? * VLQ decays to W/Z/h+q, with q a light quark are plausible, should be explored for both single and pair production: investigate which channels remain unexplored and if that leads to a significant sensitivity loss. * Are low mass VLQ B (decaying to h/Z+b) excluded? * In case of observation, what can we learn about the VLQ nature (multiple, UV completion) from chirality of couplings to W,Z, BRs,... * What about heavy (charged or neutral) tau partners? (Searches in V/h+tau) Or l^-N^++ production? Leads to similar final state as W_R production but with opposite-sign dilepton, but at much lower scale. Florian Goertz, Adrian Carmona * What is the sensitivity to additional higgses produced in pairs and each decaying to VV, Vgamma or gammagamma? A group on general study has been set up in the Higgs WG: [[2015:groups:higgs:morehiggs:hpair|Pair production of heavy Higgs partners]] * Vector boson pair production can be mediated by t-channel Q. What is the impact on V pT etc? Edward Boos, Jose Santiago, Aurelio Juste, Giacomo Cacciapaglia Volunteers: * Benjamin Fuks, Aldo Deandrea (for the NLO study) * Daniele Barducci, Aurelio Juste, Edward Boos, Jose Santiago, Devdatta Majumder: discrimination of the chirality of the VLQ. Impact of higher masses vs SM top approach. (Perhaps starting look at X53->W+W+b) Compare bW with tZ or tH decay channels for T23. - Tevatron and LHC paper: http://arxiv.org/pdf/1412.0139.pdf, https://cds.cern.ch/record/1528567/files/TOP-12-025-pas.pdf, http://arxiv.org/pdf/hep-ex/0411070.pdf How well we can determine these factors? * Giacomo Cacciapaglia: [[2015:groups:higgs:morehiggs:hpair|pair produced Higgs partners]] (transversal group in Higgs WG), VLQ -> H jet (feeds to [[2015:groups:higgs:exhprod|exotic Higgs production]] group). * Alberto Parolini: VLQ nature, tau partners, more Higgses. Discussion of 18th of June: {{:2015:groups:np:2015-06-18_15.05.27-2.jpg?200|}}