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A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725 (2013) 339-343 柳田 勉, G. Bhattacharyya, B. Bhattacherjee 共同研究者 arXiv:1311.xxxx 2013年11月1日@富山大学

A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

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Page 1: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

A gauge mediation model for explaining the muon g-2 with gauge coupling unification

横崎 統三 (Kavli IPMU)

Phys.Lett. B725 (2013) 339-343

柳田 勉, G. Bhattacharyya, B. Bhattacherjee共同研究者

arXiv:1311.xxxx

2013年11月1日@富山大学

Page 2: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

Introduction

Page 3: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

ヒッグス粒子発見!

Page 4: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

Higgs boson mass

Higgs boson mass ~125GeV

Page 5: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

• (エレメンタリー)スカラー粒子の発見•超対称性はエレメンタリースカラー粒子を自然に内包する

Fermion Boson

quarklepton

squarkslepton

gauge bosongaugino

Page 6: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

We got an evidence of SUSY?

Page 7: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

We got an evidence of SUSY?

Higgs boson

Hagure metal(To discover is also difficult)

Ref. Dragon Quest

spin-0

Page 8: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

We got an evidence of SUSY?

Higgs boson

Hagure metal(To discover is also difficult)

Ref. Dragon Quest

spin-0

SUSY particles are there!

spin-0

spin-0

spin-0

spin-0

spin-0

spin-0

Page 9: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

The Higgs boson mass in MSSM

4点のgauge couplingのdeviationはradiative correctionで!

Tree levelでマッチさせるとλ~(1/8)(gY2+g22)

超対称標準模型では、ヒッグスボソンの質量はmZより小さい

From D-term

Page 10: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

radiative correction

In decoupling limit

λはtreeの2倍くらい必要!

Page 11: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

positive negative

(sbottom loops are also important at large μ and tanβ)

Top/stop loops are important!

XtYt XtYt

@1-loop

Page 12: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

The H3m error corresponds to change of the renormalization scale from Ms/2 to 2Ms

tanb=20

重いストップ(3-4TeV)で説明できる

J.L. Feng, P. Kant, S. Profumo and D. Sanford,

1306.2318

O(αt αS2)@3-loop

Page 13: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

一方で軽いSUSY particleの実験的示唆

Page 14: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

SM value

>3σ deviation from SM prediction!

Muon g-2 anomaly

[Hagiwara, Liao, Martin, Nomura, Teubner, J.Phys. G38 (2011) 085003]

Page 16: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

これを説明できるNPのmassスケールはどれくらいだろうか...

Page 17: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

New coupling

Mass scale of new physics

g-2のdeviationを説明するには、O(100)GeVくらいのNew physics massが必要。

これを説明できるNPのmassスケールはどれくらいだろうか...

Page 18: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

SM value

>3σ deviation from SM prediction!

Muon g-2 anomaly

軽い non-colored SUSY particleによって

解決できる

[Hagiwara, Liao, Martin, Nomura, Teubner, J.Phys. G38 (2011) 085003]

e.g,

Yokozaki Norimi
m
Page 19: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

しかし厳しいフレーバーの制限slepton sector

squark sector

適当に軽くすることはできない!

Page 20: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

しかし厳しいフレーバーの制限

~1000TeV! for O(1) mixing

slepton sector

squark sector

適当に軽くすることはできない!

~10TeV for O(1) mixing

Page 21: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

しかし厳しいフレーバーの制限

~1000TeV! for O(1) mixing

slepton sector

squark sector

適当に軽くすることはできない!

~10TeV for O(1) mixingCPV in K K bar mixing

Page 22: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

LHC SUSY Searches

• Colored particleのproductionもEW productionも厳しい制限が付いている

Page 23: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

are excluded

Colored Case

Page 24: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

3leptons

EW production

Page 25: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

[Endo, Hamaguchi, Iwamoto, NY, 2011; ... NY, 2013]

GMSB model with top-like partners

Page 26: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

Good region

s

are dead!

[Endo, Hamaguchi, Iwamoto, NY, 2011; ... NY, 2013]

GMSB model with top-like partners

Page 27: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

ではどうすればいいか?重い colored SUSY particles

Higgs boson mass~125GeV

Page 28: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

ではどうすればいいか?重い colored SUSY particles

Higgs boson mass~125GeV

Anomaly of the muon g-2

軽い non-colored SUSY particles

Page 29: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

ではどうすればいいか?重い colored SUSY particles

Higgs boson mass~125GeV

Anomaly of the muon g-2

軽い non-colored SUSY particles

FCNCは避けたい

Page 30: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

ではどうすればいいか?重い colored SUSY particles

Higgs boson mass~125GeV

Anomaly of the muon g-2

軽い non-colored SUSY particles

答え: colored and non-colored mass splitting in gauge mediation

FCNCは避けたい

Page 31: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

概要• Introduction (done!)• Gauge Mediation•Minimal case (無理でした)•我々の模型• Cosmologyへのコメント•まとめ

Page 32: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

Gauge Mediation• Soft mass parametersはゲージ相互作用からinduceされる

• Flavor blind interactionなのでFCNCの問題をださない

MSSMMessengers

SUSY breaking massSMのゲージチャージ

Page 33: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

量子数はSU(2)L doubletのレプトンと同じ

量子数はSU(2)L singletのクォークと同

Messenger superfield

Page 34: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

Gaugino masses は 1-loop level で生成される

Sfermion mass squared は 2-loop level で生成される

メッセンジャー

e.g.

Page 35: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

Easy realization

[e.g., R. Kitano, 2006]

Vanishing cosmological constant V~0 からc=m3/2 MPL2

messengers

(UV completion: IYIT model)

Page 36: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

Zの一次の項がconstant termから出てくるMessenger mass

SUSY breaking mass

Page 37: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

Gauge Coupling Unificationよく知られているようにMSSMではgauge coupling

unificationが成り立つ

SM

MSSM

Page 38: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

In MSSMU(1)Y

SU(2)L

SU(3)C

Page 39: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

5(5bar) at the intermediate scale

Gauge coupling unificationは崩れない

Page 40: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

しかし、ミニマルなMessengerのGauge MediationではHiggs massを説明できない

Page 41: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

我々の模型Adjoint messenger

Page 42: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

Adjoint Messenger Model

No hyper charge

右巻きスレプトンとBinoに質量を与えるoctet, triplet messengerはBinoや右巻きスレプト

ンに質量を与えない!

Page 43: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

Gauge Coupling UnificationMSSMのmatter contentsではもちろんgauge

coupling unificationは成り立つ

Octetとtripletをいれてもnon-trivialにgauge couplingは統一する

:SU(3) octet :SU(2) triplet

Page 44: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

もちろん繰り込み群方程式は変わる

ここの部分@1-loop level

Page 45: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

color octet

SU(2) triplet

Two-loop RGE analysis

Page 46: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

color octet

SU(2) triplet

Two-loop RGE analysis

Page 47: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

A Gauge Mediation Model

No hyper charge

右巻きスレプトンとBinoに質量を与えるoctet, triplet messengerはBinoや右巻きスレプト

ンに質量を与えない!

Page 48: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

Gaugino mass

Sfermion mass

Definition

Page 49: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

Gaugino mass

Sfermion mass

Definition

Page 50: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

結果

Page 51: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

mstop~

この範囲ではconservativeにconsistent

@3-loop withH3m

Page 52: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

g-2 2σg-2 1σ

chargino mass Left-handed slepton mass

スタウがNLSPのとき、340GeV程度以上の質量が必要

Page 53: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

g-2 2σg-2 1σ

chargino mass Left-handed slepton mass

スタウがNLSPのとき、340GeV程度以上の質量が必要

Page 54: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

g-2 2σg-2 1σ

chargino mass Left-handed slepton mass

スタウがNLSPのとき、340GeV程度以上の質量が必要

Page 55: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

(tau dominated)

LHCがelectroweak productionのモードにについてもきつく制限をつけてきている

パラメーター空間の幾らかはすでに排除 されている

スレプトン

Wino

(stauのvacuum stabilityは大丈夫!)

Page 56: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725
Page 57: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

Comments on Cosmology

グラビティーノ問題

Page 58: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

熱浴で作られたNLSPはグラビティーノとSM particleに崩壊

例: stau -> tau + gravitinobino -> photon or Z + gravitino

そのLife-timeはgravitino massの2乗に比例して大きくなる。

NLSPが元素合成の時期(~0.01s-100s)やその後に崩壊するとBBNのpredictionを大きくかえてしまう

Page 59: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

NLSPの寿命Bino:

~100s for 150GeV Bino and 0.1GeV gravitino

cτ~ 1010 m collider scaleではstable

Page 60: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

BBNのPredictionからNLSPの残存量とgravitino massに制限がある

ざっくり、グラビティーノmassが0.1GeV以上だと危ない

Page 61: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

NLSPの崩壊でできるグラビティーノ

[Kawasaki, Kohri, Moroi, Yotsuyanagi, 2008]

Page 62: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

NLSPの崩壊でできるグラビティーノ

[Kawasaki, Kohri, Moroi, Yotsuyanagi, 2008]

our model

Page 63: A gauge mediation model for explaining the muon g …A gauge mediation model for explaining the muon g-2 with gauge coupling unification 横崎 統三 (Kavli IPMU) Phys.Lett. B725

まとめ

このmodelは全部OK!すぐみつかるか?死ぬ

Higgs boson mass, muon g-2 anomaly, LHC resultsを説明できる

SUSY modelは少ない。

CosomologyもOK