KIAS HEP-PH Journal Club meeting

by Dr Toshinori Matsui (KIAS)

Friday 4 Mar 2022, 11:00 → 13:00 Asia/Seoul

KIAS (Online(Zoom))

=============== journal club meeting ===============

Date: Friday 11th Mar 2022 11:00-12:00 (KST)

Place: online (zoom)

Join Zoom Meeting : https://us02web.zoom.us/j/86013009958?pwd=bHVsT1V3ckdOOUcvOVZKdVdmUExVZz09 

Meeting ID: 860 1300 9958

Passcode: 61570650

Newcomer Talk : 

Speaker: Dr. Toshinori Matsui

Title: Flavor dependent U(1) symmetric Zee model

Abstract: In this talk, I will talk about my recent paper. We have extended the Zee model introducing a vector-like lepton doublet with a flavor-dependent global U(1) symmetry. Due to the U(1) symmetry, flavor-changing neutral currents in the quark sector can be naturally forbidden at tree level, while a sufficient amount of lepton flavor violation allows satisfying current neutrino oscillation data. In our model, additional sources of CP-violation appear in the lepton sector, but their contribution to electric dipole moments is much smaller than current experimental bounds due to the Yukawa structure constrained by the U(1) symmetry. We have found that there is a parameter region where the strongly first order EWPT can be realized, which is necessary for the successful scenario of the EWBG in addition to new CP-violating phases. Finally, the detail of collider phenomenology is discussed.

References:

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