TestingA Realistic Seesaw Model at LHC 郑亚娟 山东大学 第四届TeV物理工作组会议 25-27 Aug. 2009, Tianjin In Collaboration with W Chao, Z Si, Z Xing &S Zhou
Testing Realistic Seesaw Model at LHC 郑亚娟 山东大学 In Collaboration with W.Chao, Z. Si, Z. Xing & S. Zhou 第四届TeV物理工作组会议 25-27 Aug. 2009, Tianjin
Outline 冷 Motivation Mini-review: Seesaw mechanisms Realistic type-(I+Ir) Seesaw model Collider signatures o Summary
Outline ❖ Motivation ❖ Mini-review: Seesaw mechanisms ❖ Realistic type-(I+II) Seesaw model ❖ Collider signatures ❖ Summary
Motivation 冷 LHC era is coming Search for Higgs Test SM as precisely as possible Search for new physics beyond SM 1 t hint to bsM m,≠0 Tiny neutrino mass m, -10- Gel Large hierarchy problem m, /m, -10 &s Neutrino mass generation Seesaw mechanisms Radiative generation oo Question: How to connect this topic with LHC experiments
Motivation ❖ LHC era is coming … Search for Higgs Test SM as precisely as possible Search for New Physics beyond SM ❖ 1 st hint to BSM Tiny neutrino mass Large hierarchy problem ❖ Neutrino mass generation : Seesaw mechanisms Radiative generation ❖ Question: How to connect this topic with LHC experiments ? 10 m GeV 10− m 0 12 / 10 m m t −
Seesaw Mechanisms ype-I: (SM +3 R Majorana neutrinos N,) H0■ Clepton-LYHER+LYHNR+SNRMRNR+hc MMM .s Type-II: (SM +1 Higgs triplet A) k M,≈入Ⅰ M Lepton=HER+Y△4102-入△M△Hi024H+hc M=Y
❖ Type-I : (SM +3 RH Majorana neutrinos ) ❖ Type-II : (SM +1 Higgs triplet ) Seesaw Mechanisms 1 T M M M M D R D − − NR M Y v =
oo Type-III:(SM+3 fermion triplet 2) HOI Yr Lepton=IYHER+LV2Y22H+Ir(EMg2o)+hc.M&=MAI ss Hybrid seesaWs: type-(I+If), type-(I+III
❖ Type-III: (SM +3 fermion triplet ) ❖ Hybrid seesaws: type-(I+II), type-(I+III) … 1 T M M M M D T D − −