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--- 2017:groups:np:zptovlq [2017/06/19 11:22]
daniele.barducci
+++ 2017:groups:np:zptovlq [2017/09/07 10:32]
daniele.barducci
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-====== Exotics decay of heavy bosons in VLQs ======
+====== Exotics decay of heavy bosons in VLQs and extra scalars ======
-People interested: Daniele Barducci, Thomas Flacke, Minho Son, Benjamin Fuks ...
+__People interested:__ Daniele Barducci, Thomas Flacke, Minho Son, Benjamin Fuks, Devdatta Majumder, Ramona Groeber, Haiying Cai, Tetiana Berger-Hryn'ova , Alexandra Carvalho, Abhishek Iyer Tom Rizzo...
+**Motivations and goal**
+  * Exotic decays such as $\rho \to T \bar t$ can eat branching ratio from standard search channels (dilepton, dibosons), rendering these direct searches less sensitive (see e.g. [[https://arxiv.org/pdf/1511.01101.pdf]] Fig. 3)
+  * Investigate the signatures arising from the decay of a heavy bosons (spin 0 and spin 1) in SM quarks and VLQs, e.g. Z'-> VLQ top, or extra light scalars, e.g. Z' -> Z a
-  * Investigate the signatures arising from the decay of a heavy bosons (spin 0 and spin 1) in SM quarks and VLQs, e.g. Z'-> VLQ top, ora extra light scalars, e.g. Z' -> Z a
 Possibile bosons involve
@@ Line 11: / Line 15: @@
   * ...
+**Strategies**
+  * Categorize the possible decays of the identified resonances. This was done for VLQ in Les Houches 2015
+{{:2017:groups:np:screen_shot_2017-09-07_at_10.23.38_am.png?400|}}
+{{:2017:groups:np:screen_shot_2017-09-07_at_10.23.45_am.png?400|}}
+  * Check the sensitivity of SM searches. For example the $\rho \to T \bar t \to Z t \bar t$ has the same final state of the SM $t\bar t Z$ search
+  * Check the sensitivity of single production mode. Also in this case the final state can be the same. However single production searches usually exploit a forward jet, which is not present here
+**References**
+  * "Search for a heavy resonance decaying to a top quark and a vector-like top quark at 13 TeV" https://arxiv.org/pdf/1703.06352.pdf
+  * ttZ resonance search https://arxiv.org/pdf/1610.08810.pdf
+  * Massive vectors couplings https://arxiv.org/pdf/1607.07621.pdf
+  * Minimal matter https://arxiv.org/pdf/0908.1567.pdf
+  * Simplified model with Spin 0 - Tt, (T-> Wb,Zh,th) where T is singlet top partner.
+     * https://journals.aps.org/prd/abstract/10.1103/PhysRevD.95.035039. with possibility of RS KK gluon
+     * https://arxiv.org/pdf/1609.06502.pdf
+     * https://arxiv.org/pdf/1411.1771.pdf
+**Blackboard**
+  * 20-06-2017
+{{: 2017:groups:np:20170620_151120.jpg | 20-06-2017}}
+**Further questions**
-References:
+  * From the polarization of the top arising from the decay is it possible to infer the representation to which the heavy boson belongs, i.e. predict the presence of other states?
-  * "Search for a heavy resonance decaying to a top quark and a vector-like top quark at 13 TeV" [[https://arxiv.org/pdf/1703.06352.pdf| (arXiv)]]

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