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New Physics Group Status Update: Progress on LHT and New Insights into SUSY Models

The New Physics Group is now active, having held a productive meeting to discuss the Little Higgs theory (LHT) and its implications. We've made significant progress on model files for MadGraph, focusing on heavy gauge boson production and correcting previous errors in our notes. Additionally, we explored the Next-to-Minimal Supersymmetric Standard Model (NUHM), which offers new avenues for research, particularly in relation to dark matter detection and Higgs mass predictions. Exciting developments await as we connect ILC analyses with dark matter phenomena.

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New Physics Group Status Update: Progress on LHT and New Insights into SUSY Models

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  1. New Physics Group~ Status Report ~ New Physics Group is now active! We had a meeting, and discuss the LHT on Tuesday. ~About Little Higgs model~ Model files for MadGraph: 1. I’m sorry, I am still writing the code. 2. I have finished preparing the most important part relevant to the heavy gauge boson production. 3. I will check the code works well after installing the MadGraph in my PC. 4. LHT note updated! Some typos have been fixed. 5. We have reevaluate the anomalous tth coupling. (The deviation from the SM turns out to be decreased, but it still keep the important property, l2-dependence.

  2. New Physics Group~ Status Report ~ New Physics Group is now active! We had a meeting, and discuss the LHT on Tuesday. ~About Little Higgs model~ • Mass of the top • partner increased • The deviation is also increased!! Model files for MadGraph: 1. I’m sorry, I am still writing the code. 2. I have finished preparing the most important part relevant to the heavy gauge boson production. 3. I will check the code works well after installing the MadGraph in my PC. 4. LHT note updated! Some typos have been fixed. 5. We have reevaluate the anomalous tth coupling. (The deviation from the SM turns out to be decreased, but it still keep the important property, l2-dependence.

  3. ~ Another New Physics model ~ In addition to the LHT, we should perform the ILC-analysis on the supersymmetric models. (SUSY is the primary candidate for New Physics) Most of previous works have been done on the CMSSM.  Let’s consider the NUHM. • NUHM: still keeps the good feature of the CMSSM (GUT, etc.) • In some parameter region of the NUHM, • its phenomenology quite different from that in the CMSSM. • 2. Example: “LHS region” • Higgs mass can be lighter than 100 GeV!! • (ZZh coupling is suppressed.) • 3. Dark Matter region naturally appears. • 4. The signal at the direct dark matter detection experiment • is expected to be large! •  It is possible to establish the connection • between ILC & DM detections!

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