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2017:groups:np:zptovlq [2017/06/19 14:18] majumder.devdatta Name added |
2017:groups:np:zptovlq [2017/06/21 08:38] tetiana.bergerhrynova |
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====== Exotics decay of heavy bosons in VLQs and extra scalars ====== | ====== Exotics decay of heavy bosons in VLQs and extra scalars ====== | ||
- | People interested: Daniele Barducci, Thomas Flacke, Minho Son, Benjamin Fuks, Devdatta Majumder ... | + | __People interested:__ Daniele Barducci, Thomas Flacke, Minho Son, Benjamin Fuks, Devdatta Majumder, Ramona Groeber, Haiying Cai, Tetiana Berger-Hryn'ova ... |
+ | |||
+ | **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 | ||
- | * 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? | ||
Possibile bosons involve | Possibile bosons involve | ||
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* ... | * ... | ||
+ | **Strategies** | ||
- | References: | + | * Categorize the possible decays of the identified resonances |
- | * "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)]] | + | * 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 | ||
+ | |||
+ | **Blackboard** | ||
+ | |||
+ | * 20-06-2017 | ||
+ | {{: 2017:groups:np:20170620_151120.jpg | 20-06-2017}} | ||
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+ | |||
+ | |||
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+ | **Further questions** | ||
+ | |||
+ | * 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? |