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2019:groups:bsm:rdm [2019/06/27 16:49] jose.zurita |
2019:groups:bsm:rdm [2019/06/27 16:50] jose.zurita |
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a) D-Dbar mixing is suppressed by theta_C^3 and one chirality flip. Gives no meaningful bounds. | a) D-Dbar mixing is suppressed by theta_C^3 and one chirality flip. Gives no meaningful bounds. | ||
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b) Bc -> tau nu, Z->tau tau (1-loop x EFT) give bounds (computed). | b) Bc -> tau nu, Z->tau tau (1-loop x EFT) give bounds (computed). | ||
- | c) Sewing altogether the allowed region can be displayed in the yL23-yR33 plane, with the results that yL <= yR. The scaling with S1 mass is seemingly trivial (to be checked). Plot by Marco will come soon (from Davide). Ref point of mS1=1.5 TeV, yL=1=yR solves the RD anomalies | + | |
+ | c) Sewing altogether the allowed region can be displayed in the yL23-yR33 plane, with the results that yL < = yR. The scaling with S1 mass is seemingly trivial (to be checked). Plot by Marco will come soon (from Davide). Ref point of mS1=1.5 TeV, yL=1=yR solves the RD anomalies | ||
3) Relic density: from coannihilation, GB says that mchi1=890 and mchi0=800 with yd=1 gives the right relic. Ongoing work (Jan, André, Genevieve) on checking the CDFO. | 3) Relic density: from coannihilation, GB says that mchi1=890 and mchi0=800 with yd=1 gives the right relic. Ongoing work (Jan, André, Genevieve) on checking the CDFO. | ||
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4) Recasting collider searches: | 4) Recasting collider searches: | ||
i) Benj wants to set-up the recast of the LQ_res + MET search. | i) Benj wants to set-up the recast of the LQ_res + MET search. | ||
- | ii) Bounds on chi1 come from mono/multi-jet + MET. Some of these were recasted in Fig.7 of [[https://arxiv.org/pdf/1703.00452.pdf|this fantastic paper]] (take the XF3 shade), which means that 500-600 GeV were excluded with the ATLAS 13.3 fb-1 search, and that HL-LHC will push the bounds to 1.1 - 1.3 TeV. Bound is almost independent on the compression (mchi1-mchi0). | + | ii) Bounds on chi1 come from mono/multi-jet + MET. Some of these were recasted in Fig.7 of [[https://arxiv.org/pdf/1703.00452.pdf|this fantastic paper]] (take the XF3 shaded region), which means that 500-600 GeV were excluded with the ATLAS 13.3 fb-1 search, and that HL-LHC will push the bounds to 1.1 - 1.3 TeV. Bound is almost independent on the compression (mchi1-mchi0). |
iii) bounds from l + LQ, where LQ -> a) tau charm, b) top +tau and c) b nu. Easier to have the charm in the initial state, due to PDF suppression (but b is also possible). Giacomo, José and Jordan will look into existing searches that could give constraints. | iii) bounds from l + LQ, where LQ -> a) tau charm, b) top +tau and c) b nu. Easier to have the charm in the initial state, due to PDF suppression (but b is also possible). Giacomo, José and Jordan will look into existing searches that could give constraints. | ||
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+ | 5) 1-loop direct detection is under investigation | ||
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+ | 6) Jordan will set-up a Dropbox folder for the project | ||