New Physics Part ~ Status Report ~New Physics Part ~ Status Report ~

~ Little Higgs Model (LHT) ~1. Sample Points: already chosen.2. Model file for MadGraph: will be finished soon.(The file will be checked by comparing with CalcHep.) ILC-Analysis for the LHT

~ Non-Universal Higgs Scenario in MSSM (NUHM) ~1. Sample Points: Some Points will be chosen. (Preliminary Points are shown today)2. Model file for MadGraph: Available! ILC-Analysis for the NUHM

Exp: Y. Takubo (Tohoku), T. Kusano (Tohoku), M0Theo: E. Asakawa (Meiji-gakuin), M. Asano (KEK), S. Matsumoto (Tohoku)

~ Little Higgs Model with T-parity ~ Gauge Heavy Gauge　　 (Except gluon ） Higgs Triplet HiggsTop quark T-odd top　　　↑　　　↓Top part T-odd Top partner (T-even) (T-odd)

Gauge Heavy Gauge　　 (Except gluon ） Higgs Triplet HiggsTop quark T-odd top　　　↑　　　↓Top part T-odd Top partner (T-even) (T-odd)

W,Z WH,ZH

h

h h

h+

+ + h

t

t

t

T

T

AH = ZBBH + ZWW3HAH = ZBBH + ZWW3H

Lightest T-oddParticle is stable!!

Lightest T-oddParticle is stable!!

Heavy Photon Dark Matter

~ Little Higgs Model with T-parity ~

f FLH

O (f)

O (v)

Dark Matter

Sample Points

500 GeV

Sample Points have been chosen!(All Points satisfy all experimental and cosmological constraints!)

Heavy partners of gauge bosonsturns out to be less than 500 GeV. It is possible to produce them in pair at the ILC!

~ Little Higgs Model with T-parity ~Towards the simulation

Model file of the LHT is required to perform the simulation using the MadGraph. Still in progress, but will be finished soon. In order to check the model file,we will compare parton-level events of theMadGraph with those of the CalcHep code!

(Parton level) Event generation in the CalcHep has already been performed!

II III VI

e+ + e– W+ + W– + AH + AH

I

~ Non-Universal Higgs model ~-- We should study ILC signature in supersymmetric scenario! --

CMSSM model has been studied many times!There are many other interesting scenarios in the MSSM. How About the non-universal Higgs Model (NUHM)?

CMSSM Parameters are( m0, m1/2, A0, tan, sign() )

NUHMOnly Higgs mass parameters,mHu & mHd, are non-universal at GUT scaleParameters are ( m0, m1/2, A0, tan, mA, )Still defined in the MSSM context!Completely consistent with GUT!

1. NUHM CMSSM⊃2. NUHM involves many regions which do not appear in CMSSM3. For example, ~ Long lived stop scenario ~ Stop can be lightest in the MSSM. (If the gravitino is LSP, the model is consistent with cosmology)

~ Light Higgs Scenario ~Higgs can be lighter than 100 GeV! (ZZH coupling is suppressed!) Consistent with Neutralino DM!

~ Non-Universal Higgs model ~-- Preliminary Sample Points --

~ Long lived stop scenario ~

1. Stop forms the R-hadron, leading to the distinctive signal!2. If the stop can be accumulated, it is possible to access SUGRA.3. Reheating temperature after inflation can be estimated by the ILC experiment!

~ Light Higgs Scenario ~

1. Higgs mass is less than 100 GeV, leading to suppressed ZZh and enhanced ZAh2. Charged Higgs are about 100 GeV.3. All SUSY particles are also light!4. Signal in direct DM detection experiments is very large!!

~ Summary ~

Sample Points Model File

LHT

NUHM2(Light Higgs)

NUHM1(Light Stop)

Comments

Model file willbe prepared soon

Sample point willbe fixed soon

Study of R-hadrons is needed!