H-COUP 1. H-COUP ? 2. H-COUP ? 3. H-COUP - - PowerPoint PPT Presentation

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Kentarou Mawatari (Osaka U.) PPP2019 - Kyoto - 2019.7.30 /23

“H-COUP”で物理を探る

馬渡 健太郎

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1. H-COUP とは ? 2. なぜ H-COUP ? 3. H-COUPでどのよう に物理を探るのか ? 4. まとめと展望

共同研究者: 兼村 晋哉 (大阪大) 菊地 真吏子 (北九州高専) 桜井 亘大 (Karlsruhe/大阪大) 柳生 慶 (大阪大)

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Kentarou Mawatari (Osaka U.) PPP2019 - Kyoto - 2019.7.30 /23

• 1. H-COUPとは ?

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Kentarou Mawatari (Osaka U.) PPP2019 - Kyoto - 2019.7.30 /23 3

Comput.Phys.Commun.233(2018)134 http://www-het.phys.sci.osaka-u.ac.jp/~kanemu/HCOUP_HP1013/HCOUP_HP .html

Loop effects on the Higgs decay widths in extended Higgs models [1803.01456, PLB] Full NLO calculations of Higgs boson decay rates in models with non-minimal scalar sectors [1906.10070]

+K. Mawatari

Version 2 is coming very soon!

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Kentarou Mawatari (Osaka U.) PPP2019 - Kyoto - 2019.7.30 /23

H-COUP v1 and v2: 1-min tutorial

• go to the H-COUP webpage.
• download the H-COUP file.
• (install LoopTools.)
• $ unzip H-COUP-2.0.zip
• edit Makefile to specify the

PATH to LoopTools

• $ make (to compile)
• edit an input file


(HSM, THDMs, IDM)

• $ ./hcoup (to run the program)

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Kentarou Mawatari (Osaka U.) PPP2019 - Kyoto - 2019.7.30 /23

H-COUP v1: Input and Output

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Input Output

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Kentarou Mawatari (Osaka U.) PPP2019 - Kyoto - 2019.7.30 /23

• 2. なぜH-COUP ?

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Kentarou Mawatari (Osaka U.) PPP2019 - Kyoto - 2019.7.30 /23

新物理(New Physics)の兆候が未だに現れない…

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SUSY(超対称性)粒子の 質量への制限

Model Signature

• L dt [fb−1]

Mass limit Reference Inclusive Searches 3rd gen. squarks direct production EW direct Long-lived particles RPV ˜ q˜ q, ˜ q→q˜ χ0 1 0 e, µ 2-6 jets Emiss T 36.1 m(˜ χ0 1)<100 GeV 1712.02332 1.55 ˜ q [2×, 8× Degen.] 0.9 ˜ q [2×, 8× Degen.] mono-jet 1-3 jets Emiss T 36.1 m(˜ q)-m(˜ χ0 1)=5 GeV 1711.03301 0.71 ˜ q [1×, 8× Degen.] 0.43 ˜ q [1×, 8× Degen.] ˜ g˜ g, ˜ g→q¯ q˜ χ0 1 0 e, µ 2-6 jets Emiss T 36.1 m(˜ χ0 1)<200 GeV 1712.02332 2.0 ˜ g m(˜ χ0 1)=900 GeV 1712.02332 0.95-1.6 ˜ g ˜ g Forbidden ˜ g˜ g, ˜ g→q¯ q(ℓℓ)˜ χ0 1 3 e, µ 4 jets 36.1 m(˜ χ0 1)<800 GeV 1706.03731 1.85 ˜ g ee, µµ 2 jets Emiss T 36.1 m(˜ g)-m(˜ χ0 1)=50 GeV 1805.11381 1.2 ˜ g ˜ g˜ g, ˜ g→qqWZ ˜ χ0 1 0 e, µ 7-11 jets Emiss T 36.1 m(˜ χ0 1) <400 GeV 1708.02794 1.8 ˜ g SS e, µ 6 jets 139 m(˜ g)-m(˜ χ0 1)=200 GeV ATLAS-CONF-2019-015 1.15 ˜ g ˜ g˜ g, ˜ g→t¯ t ˜ χ0 1 0-1 e, µ 3 b Emiss T 79.8 m(˜ χ0 1)<200 GeV ATLAS-CONF-2018-041 2.25 ˜ g SS e, µ 6 jets 139 m(˜ g)-m(˜ χ0 1)=300 GeV ATLAS-CONF-2019-015 1.25 ˜ g ˜ b1˜ b1, ˜ b1→b˜ χ0 1/t˜ χ± 1 Multiple 36.1 m(˜ χ0 1)=300 GeV, BR(b˜ χ0 1)=1 1708.09266, 1711.03301 0.9 ˜ b1 ˜ b1 Forbidden Multiple 36.1 m(˜ χ0 1)=300 GeV, BR(b˜ χ0 1)=BR(t ˜ χ± 1 )=0.5 1708.09266 0.58-0.82 ˜ b1 ˜ b1 Forbidden Multiple 139 m(˜ χ0 1)=200 GeV, m(˜ χ± 1 )=300 GeV, BR(t ˜ χ± 1 )=1 ATLAS-CONF-2019-015 0.74 ˜ b1 ˜ b1 Forbidden ˜ b1˜ b1, ˜ b1→b˜ χ0 2 → bh˜ χ0 1 0 e, µ 6 b Emiss T 139 ∆m(˜ χ0 2, ˜ χ0 1)=130 GeV, m(˜ χ0 1)=100 GeV SUSY-2018-31 0.23-1.35 ˜ b1 ˜ b1 Forbidden ∆m(˜ χ0 2, ˜ χ0 1)=130 GeV, m(˜ χ0 1)=0 GeV SUSY-2018-31 0.23-0.48 ˜ b1 ˜ b1 ˜ t1˜ t1, ˜ t1→Wb˜ χ0 1 or t˜ χ0 1 0-2 e, µ 0-2 jets/1-2 b Emiss T 36.1 m(˜ χ0 1)=1 GeV 1506.08616, 1709.04183, 1711.11520 1.0 ˜ t1 ˜ t1˜ t1, ˜ t1→Wb˜ χ0 1 1 e, µ 3 jets/1 b Emiss T 139 m(˜ χ0 1)=400 GeV ATLAS-CONF-2019-017 0.44-0.59 ˜ t1 ˜ t1˜ t1, ˜ t1→˜ τ1bν, ˜ τ1→τ ˜ G 1 τ + 1 e,µ,τ 2 jets/1 b Emiss T 36.1 m(˜ τ1)=800 GeV 1803.10178 1.16 ˜ t1 ˜ t1˜ t1, ˜ t1→c˜ χ0 1 / ˜ c˜ c, ˜ c→c˜ χ0 1 0 e, µ 2 c Emiss T 36.1 m(˜ χ0 1)=0 GeV 1805.01649 0.85 ˜ c m(˜ t1,˜ c)-m(˜ χ0 1)=50 GeV 1805.01649 0.46 ˜ t1 0 e, µ mono-jet Emiss T 36.1 m(˜ t1,˜ c)-m(˜ χ0 1)=5 GeV 1711.03301 0.43 ˜ t1 ˜ t2˜ t2, ˜ t2→˜ t1 + h 1-2 e, µ 4 b Emiss T 36.1 m(˜ χ0 1)=0 GeV, m(˜ t1)-m(˜ χ0 1)= 180 GeV 1706.03986 0.32-0.88 ˜ t2 ˜ t2˜ t2, ˜ t2→˜ t1 + Z 3 e, µ 1 b Emiss T 139 m(˜ χ0 1)=360 GeV, m(˜ t1)-m(˜ χ0 1)= 40 GeV ATLAS-CONF-2019-016 0.86 ˜ t2 ˜ t2 Forbidden ˜ χ± 1 ˜ χ0 2 via WZ 2-3 e, µ Emiss T 36.1 m(˜ χ0 1)=0 1403.5294, 1806.02293 0.6 ˜ χ± 1 / ˜ χ0 2 ee, µµ ≥ 1 Emiss T 139 m(˜ χ± 1 )-m(˜ χ0 1)=5 GeV ATLAS-CONF-2019-014 0.205 ˜ χ± 1 / ˜ χ0 2 ˜ χ± 1 ˜ χ∓ 1 via WW 2 e, µ Emiss T 139 m(˜ χ0 1)=0 ATLAS-CONF-2019-008 0.42 ˜ χ± 1 ˜ χ± 1 ˜ χ0 2 via Wh 0-1 e, µ 2 b/2 γ Emiss T 139 m(˜ χ0 1)=70 GeV ATLAS-CONF-2019-019, ATLAS-CONF-2019-XYZ 0.74 ˜ χ± 1 / ˜ χ0 2 ˜ χ± 1 / ˜ χ0 2 Forbidden ˜ χ± 1 ˜ χ∓ 1 via ˜ ℓL/˜ ν 2 e, µ Emiss T 139 m(˜ ℓ,˜ ν)=0.5(m(˜ χ± 1 )+m(˜ χ0 1)) ATLAS-CONF-2019-008 1.0 ˜ χ± 1 ˜ τ˜ τ, ˜ τ→τ˜ χ0 1 2 τ Emiss T 139 m(˜ χ0 1)=0 ATLAS-CONF-2019-018 0.12-0.39 ˜ τ [˜ τL, ˜ τR,L] 0.16-0.3 ˜ τ [˜ τL, ˜ τR,L] ˜ ℓL,R ˜ ℓL,R, ˜ ℓ→ℓ ˜ χ0 1 2 e, µ 0 jets Emiss T 139 m(˜ χ0 1)=0 ATLAS-CONF-2019-008 0.7 ˜ ℓ 2 e, µ ≥ 1 Emiss T 139 m(˜ ℓ)-m(˜ χ0 1)=10 GeV ATLAS-CONF-2019-014 0.256 ˜ ℓ ˜ H ˜ H, ˜ H→h ˜ G/Z ˜ G 0 e, µ ≥ 3 b Emiss T 36.1 BR(˜ χ0 1 → h ˜ G)=1 1806.04030 0.29-0.88 ˜ H 0.13-0.23 ˜ H 4 e, µ 0 jets Emiss T 36.1 BR(˜ χ0 1 → Z ˜ G)=1 1804.03602 0.3 ˜ H Direct ˜ χ+ 1 ˜ χ− 1 prod., long-lived ˜ χ± 1

• Disapp. trk

1 jet Emiss T 36.1 Pure Wino 1712.02118 0.46 ˜ χ± 1 Pure Higgsino ATL-PHYS-PUB-2017-019 0.15 ˜ χ± 1 Stable ˜ g R-hadron Multiple 36.1 1902.01636,1808.04095 2.0 ˜ g Metastable ˜ g R-hadron, ˜ g→qq˜ χ0 1 Multiple 36.1 m(˜ χ0 1)=100 GeV 1710.04901,1808.04095 2.4 ˜ g [τ(˜ g) =10 ns, 0.2 ns] 2.05 ˜ g [τ(˜ g) =10 ns, 0.2 ns] LFV pp→˜ ντ + X, ˜ ντ→eµ/eτ/µτ eµ,eτ,µτ 3.2 λ′ 311=0.11, λ132/133/233=0.07 1607.08079 1.9 ˜ ντ ˜ χ± 1 ˜ χ∓ 1 /˜ χ0 2 → WW/Zℓℓℓℓνν 4 e, µ 0 jets Emiss T 36.1 m(˜ χ0 1)=100 GeV 1804.03602 1.33 ˜ χ± 1 / ˜ χ0 2 [λi33 0, λ12k 0] 0.82 ˜ χ± 1 / ˜ χ0 2 [λi33 0, λ12k 0] ˜ g˜ g, ˜ g→qq˜ χ0 1, ˜ χ0 1 → qqq 4-5 large-R jets 36.1 Large λ′′ 112 1804.03568 1.9 ˜ g [m(˜ χ0 1)=200 GeV, 1100 GeV] 1.3 ˜ g [m(˜ χ0 1)=200 GeV, 1100 GeV] Multiple 36.1 m(˜ χ0 1)=200 GeV, bino-like ATLAS-CONF-2018-003 2.0 ˜ g [λ′′ 112=2e-4, 2e-5] 1.05 ˜ g [λ′′ 112=2e-4, 2e-5] ˜ t˜ t, ˜ t→t˜ χ0 1, ˜ χ0 1 → tbs Multiple 36.1 m(˜ χ0 1)=200 GeV, bino-like ATLAS-CONF-2018-003 1.05 ˜ g [λ′′ 323=2e-4, 1e-2] 0.55 ˜ g [λ′′ 323=2e-4, 1e-2] ˜ t1˜ t1, ˜ t1→bs 2 jets + 2 b 36.7 1710.07171 0.61 ˜ t1 [qq, bs] 0.42 ˜ t1 [qq, bs] ˜ t1˜ t1, ˜ t1→qℓ 2 e, µ 2 b 36.1 BR(˜ t1→be/bµ)>20% 1710.05544 0.4-1.45 ˜ t1 1 µ DV 136 BR(˜ t1→qµ)=100%, cosθt=1 ATLAS-CONF-2019-006 1.6 ˜ t1 [1e-10< λ′ 23k <1e-8, 3e-10< λ′ 23k <3e-9] 1.0 ˜ t1 [1e-10< λ′ 23k <1e-8, 3e-10< λ′ 23k <3e-9] Mass scale [TeV] 10−1 1

ATLAS SUSY Searches* - 95% CL Lower Limits

July 2019

ATLAS Preliminary

√s = 13 TeV *Only a selection of the available mass limits on new states or phenomena is shown. Many of the limits are based on simplified models, c.f. refs. for the assumptions made. Model ℓ, γ Jets† Emiss T

• L dt[fb−1]

Limit Reference Extra dimensions Gauge bosons CI DM LQ Heavy quarks Excited fermions Other ADD GKK + g/q 0 e, µ 1 − 4 j Yes 36.1 n = 2 1711.03301 7.7 TeV MD ADD non-resonant γγ 2 γ − − 36.7 n = 3 HLZ NLO 1707.04147 8.6 TeV MS ADD QBH − 2 j − 37.0 n = 6 1703.09127 8.9 TeV Mth ADD BH high pT ≥ 1 e, µ ≥ 2 j − 3.2 n = 6, MD = 3 TeV, rot BH 1606.02265 8.2 TeV Mth ADD BH multijet − ≥ 3 j − 3.6 n = 6, MD = 3 TeV, rot BH 1512.02586 9.55 TeV Mth RS1 GKK → γγ 2 γ − − 36.7 k/MPl = 0.1 1707.04147 4.1 TeV GKK mass Bulk RS GKK → WW /ZZ multi-channel 36.1 k/MPl = 1.0 1808.02380 2.3 TeV GKK mass Bulk RS GKK → WW → qqqq 0 e, µ 2 J − 139 k/MPl = 1.0 ATLAS-CONF-2019-003 1.6 TeV GKK mass Bulk RS gKK → tt 1 e, µ ≥ 1 b, ≥ 1J/2j Yes 36.1 Γ/m = 15% 1804.10823 3.8 TeV gKK mass 2UED / RPP 1 e, µ ≥ 2 b, ≥ 3 j Yes 36.1 Tier (1,1), B(A(1,1) → tt) = 1 1803.09678 1.8 TeV KK mass SSM Z ′ → ℓℓ 2 e, µ − − 139 1903.06248 5.1 TeV Z′ mass SSM Z ′ → ττ 2 τ − − 36.1 1709.07242 2.42 TeV Z′ mass Leptophobic Z ′ → bb − 2 b − 36.1 1805.09299 2.1 TeV Z′ mass Leptophobic Z ′ → tt 1 e, µ ≥ 1 b, ≥ 1J/2j Yes 36.1 Γ/m = 1% 1804.10823 3.0 TeV Z′ mass SSM W ′ → ℓν 1 e, µ − Yes 139 CERN-EP-2019-100 6.0 TeV W′ mass SSM W ′ → τν 1 τ − Yes 36.1 1801.06992 3.7 TeV W′ mass HVT V ′ → WZ → qqqq model B 0 e, µ 2 J − 139 gV = 3 ATLAS-CONF-2019-003 3.6 TeV V′ mass HVT V ′ → WH/ZH model B multi-channel 36.1 gV = 3 1712.06518 2.93 TeV V′ mass LRSM WR → tb multi-channel 36.1 1807.10473 3.25 TeV WR mass LRSM WR → µNR 2 µ 1 J − 80 m(NR) = 0.5 TeV, gL = gR 1904.12679 5.0 TeV WR mass CI qqqq − 2 j − 37.0 η− LL 1703.09127 21.8 TeV Λ CI ℓℓqq 2 e, µ − − 36.1 η− LL 1707.02424 40.0 TeV Λ CI tttt ≥1 e,µ ≥1 b, ≥1 j Yes 36.1 |C4t| = 4π 1811.02305 2.57 TeV Λ Axial-vector mediator (Dirac DM) 0 e, µ 1 − 4 j Yes 36.1 gq=0.25, gχ=1.0, m(χ) = 1 GeV 1711.03301 1.55 TeV mmed Colored scalar mediator (Dirac DM) 0 e, µ 1 − 4 j Yes 36.1 g=1.0, m(χ) = 1 GeV 1711.03301 1.67 TeV mmed VV χχ EFT (Dirac DM) 0 e, µ 1 J, ≤ 1 j Yes 3.2 m(χ) < 150 GeV 1608.02372 700 GeV M∗ Scalar reson. φ → tχ (Dirac DM) 0-1 e, µ 1 b, 0-1 J Yes 36.1 y = 0.4, λ = 0.2, m(χ) = 10 GeV 1812.09743 3.4 TeV mφ Scalar LQ 1st gen 1,2 e ≥ 2 j Yes 36.1 β = 1 1902.00377 1.4 TeV LQ mass Scalar LQ 2nd gen 1,2 µ ≥ 2 j Yes 36.1 β = 1 1902.00377 1.56 TeV LQ mass Scalar LQ 3rd gen 2 τ 2 b − 36.1 B(LQu 3 → bτ) = 1 1902.08103 1.03 TeV LQu 3 mass Scalar LQ 3rd gen 0-1 e, µ 2 b Yes 36.1 B(LQd 3 → tτ) = 0 1902.08103 970 GeV LQd 3 mass VLQ TT → Ht/Zt/Wb + X multi-channel 36.1 SU(2) doublet 1808.02343 1.37 TeV T mass VLQ BB → Wt/Zb + X multi-channel 36.1 SU(2) doublet 1808.02343 1.34 TeV B mass VLQ T5/3T5/3|T5/3 → Wt + X 2(SS)/≥3 e,µ ≥1 b, ≥1 j Yes 36.1 B(T5/3 → Wt)= 1, c(T5/3Wt)= 1 1807.11883 1.64 TeV T5/3 mass VLQ Y → Wb + X 1 e, µ ≥ 1 b, ≥ 1j Yes 36.1 B(Y → Wb)= 1, cR(Wb)= 1 1812.07343 1.85 TeV Y mass VLQ B → Hb + X 0 e,µ, 2 γ ≥ 1 b, ≥ 1j Yes 79.8 κB= 0.5 ATLAS-CONF-2018-024 1.21 TeV B mass VLQ QQ → WqWq 1 e, µ ≥ 4 j Yes 20.3 1509.04261 690 GeV Q mass Excited quark q∗ → qg − 2 j − 139

• nly u∗ and d∗, Λ = m(q∗)

ATLAS-CONF-2019-007 6.7 TeV q∗ mass Excited quark q∗ → qγ 1 γ 1 j − 36.7

• nly u∗ and d∗, Λ = m(q∗)

1709.10440 5.3 TeV q∗ mass Excited quark b∗ → bg − 1 b, 1 j − 36.1 1805.09299 2.6 TeV b∗ mass Excited lepton ℓ∗ 3 e, µ − − 20.3 Λ = 3.0 TeV 1411.2921 3.0 TeV ℓ∗ mass Excited lepton ν∗ 3 e, µ, τ − − 20.3 Λ = 1.6 TeV 1411.2921 1.6 TeV ν∗ mass Type III Seesaw 1 e, µ ≥ 2 j Yes 79.8 ATLAS-CONF-2018-020 560 GeV N0 mass LRSM Majorana ν 2 µ 2 j − 36.1 m(WR) = 4.1 TeV, gL = gR 1809.11105 3.2 TeV NR mass Higgs triplet H±± → ℓℓ 2,3,4 e, µ (SS) − − 36.1 DY production 1710.09748 870 GeV H±± mass Higgs triplet H±± → ℓτ 3 e, µ, τ − − 20.3 DY production, B(H±± L → ℓτ) = 1 1411.2921 400 GeV H±± mass Multi-charged particles − − − 36.1 DY production, |q| = 5e 1812.03673 1.22 TeV multi-charged particle mass Magnetic monopoles − − − 34.4 DY production, |g| = 1gD, spin 1/2 1905.10130 2.37 TeV monopole mass Mass scale [TeV] 10−1 1 10 √s = 8 TeV √s = 13 TeV partial data √s = 13 TeV full data

ATLAS Exotics Searches* - 95% CL Upper Exclusion Limits

Status: May 2019

ATLAS Preliminary

• L dt = (3.2 – 139) fb−1

√s = 8, 13 TeV *Only a selection of the available mass limits on new states or phenomena is shown. †Small-radius (large-radius) jets are denoted by the letter j (J).

Non-SUSY粒子(e.g. 余剰次元模型の Kaluza-Klein粒子)の質量への制限

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Kentarou Mawatari (Osaka U.) PPP2019 - Kyoto - 2019.7.30 /23

LHCデータ 標準模型(SM)の予言

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しかし、ヒッグスセクター の測定精度はまだまだ。 理論的にヒッグス2重項が1つである 理由はなく、新物理模型の多くはヒッ グスセクターの拡張を要請。

≈

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pp

500 µb−1 80 µb−1

W Z t¯ t t

t-chan

Wt

2.0 fb−1

H

total t¯ tH VBF VH

WW WZ ZZ t

s-chan

t¯ tW t¯ tZ

tZj WWW WWZ

10−1 1 101 102 103 104 105 106 1011

σ [pb]

Status: March 2019

ATLAS Preliminary Run 1,2 √s = 7,8,13 TeV

Theory LHC pp √s = 7 TeV Data 4.5 − 4.6 fb−1 LHC pp √s = 8 TeV Data 20.2 − 20.3 fb−1 LHC pp √s = 13 TeV Data 3.2 − 79.8 fb−1

Standard Model Total Production Cross Section Measurements

精密測定によるヒッグスセクター の究明が新物理探索の鍵！

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Kentarou Mawatari (Osaka U.) PPP2019 - Kyoto - 2019.7.30 /23

拡張ヒッグス模型の例

• HSM: Higgs singlet model (a real singlet scalar)



 
 [free parameters]

• THDM: Two Higgs doublet model (with softly broken Z2 symmetry +CP conservation)



 
 
 [free parameters]
 
 
 
 


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field mixing (tree) quantum effect by additional bosons (loop)

• h(125)以外のスカラー粒子の存在 (H,A,H±,…)
• h(125) couplingのSM予言からのずれ

＊愛甲さんのポスター 発表 (明日)

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Kentarou Mawatari (Osaka U.) PPP2019 - Kyoto - 2019.7.30 /23

ヒッグス結合の測定精度@HL-LHC+ILC

10

ILC500 is necessary. ILC can improve significantly. Only ILC can measure. 180M Higgs (HL-LHC) + 0.6M (ILC250)

European strategy: ILC [1901.09829]

relatively clean even at the LHC.

より精密な予言 が必要不可欠 O(1%) の精度 H-COUP !

SLIDE 11

Kentarou Mawatari (Osaka U.) PPP2019 - Kyoto - 2019.7.30 /23 11 Kanemura, Kikuchi, Yagyu [1511.06211, NPB]+[1608.01582, NPB] Kanemura, Okada, Senaha, Yuan [hep-ph/0408364, PRD] Kanemura, Kikuchi, Yagyu [1401.0515, PLB]+[1502.07716, NPB]

Singlet extension THDM

Z2 charge assignment

IDM

Kanemura, Kikuchi, Sakurai, Yagyu [1605.08520, PRD]

SLIDE 12

Kentarou Mawatari (Osaka U.) PPP2019 - Kyoto - 2019.7.30 /23

• 3. H-COUPでどのよう

に物理を探るのか ?

12

SLIDE 13

Kentarou Mawatari (Osaka U.) PPP2019 - Kyoto - 2019.7.30 /23

H-COUP applications: Higgs decays

13 Kanemura, Kikuchi, Mawatari, Sakurai, Yagyu [1803.01456 (PLB), 1906.10070]

THDM THDM

pattern of the deviations 
 ➡ selection of NP models magnitude of the deviations
 ➡ NP scales

＊桜井さんのポスター発表 (去年)

SLIDE 14

250 500 750 1000

√s (GeV)

50 100

Cross section e＋e−→hγ

[ab]

ILC250!

SLIDE 15

Kentarou Mawatari (Osaka U.) PPP2019 - Kyoto - 2019.7.30 /23

250 500 750 1000

√s (GeV)

100 200 300 400

Cross section (ab)

hγ (unpol) P(e

−, e +) = (−0.8, 0.3)

H-COUP applications: Higgs productions

15

?

How much can new physics enhance (or reduce) the production rate?

κV H±(±) κf κV γ h e− e+

crossing symmetry with h→Zff

κf (=t) κV H+ H++ IDM 1 1 ○ × ITM (Y=1) 1 1 ○ ○ THDM sβ-α

• cβ-α/tβ

sβ-α ○ ×

Kanemura, Mawatari, Sakurai [1808.10268, PRD]

＊馬渡の口頭発表 (去年)

SLIDE 16

Kentarou Mawatari (Osaka U.) PPP2019 - Kyoto - 2019.7.30 /23

H-COUP v2: Branching ratios

16 Kanemura, Tsumura, Yagyu, Yokoya [1406.3294, PRD] Kanemura, Kikuchi, Mawatari, Sakurai, Yagyu [1906.10070]

LO NLO in EW+QCD

SLIDE 17

Kentarou Mawatari (Osaka U.) PPP2019 - Kyoto - 2019.7.30 /23

Loop effects by additional Higgs bosons

• Ne

17

excluded by unitarity

Mmin≠0 Mmin=0 0 < M 2 < m2

Φ

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New physics effects of the EW corrections: m2

Φ ∼ λv2 + M 2

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m2

Φ ∼ M 2 :

m2

Φ ∼ λv2 :

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Decoupling Non-decoupling

h Φ Φ

∼ 𝜇𝑤

(Φ=H,A,H+)

SLIDE 18

Kentarou Mawatari (Osaka U.) PPP2019 - Kyoto - 2019.7.30 /23

Precision of the Higgs branching ratios at future colliders

18 Higgs physics at the HL-LHC [1902.00134]

1σ 13% 6.7% 1.9% 1.4% 0.89% 27% (3.2% 2σ 26% 13.4% 3.8% 2.8% 1.78% 54% 6.4%

ILC250 [1710.07621] 2000 fb-1

A) BW W

NP

∼ BW W

SM

B) BW W

NP

> BW W

SM

C) BW W

NP

< BW W

SM

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Let’s consider
 3 scenarios:

for Bcc)

SLIDE 19

Kentarou Mawatari (Osaka U.) PPP2019 - Kyoto - 2019.7.30 /23

Correlations among the Higgs branching ratios

19

1.5 < tan β < 10 0 < M 2 < m2

Φ

300 < mΦ < 1000 GeV

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600 < mΦ < 1000 GeV (dark)

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A) BW W

NP

∼ BW W

SM

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HSM, IDM

• HSM/IDM predict Δμ～0.
• THDMs predict different

correlations depending

• n the type of

Yukawa int.

• The mass bounds from

the direct searches/flavor constraints significantly reduce the allowed regions.

SLIDE 20

Kentarou Mawatari (Osaka U.) PPP2019 - Kyoto - 2019.7.30 /23

Correlations among the Higgs branching ratios

20

1.5 < tan β < 10 0 < M 2 < m2

Φ

300 < mΦ < 1000 GeV

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600 < mΦ < 1000 GeV (dark)

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B) BW W

NP

> BW W

SM

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C) BW W

NP

< BW W

SM

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Since the BRs are correlated among all the decay modes, each model predicts a particular pattern of the deviations for each scenario.

SLIDE 21

Kentarou Mawatari (Osaka U.) PPP2019 - Kyoto - 2019.7.30 /23

BR(ττ) vs. BR(cc)

21

The measurement of h→cc is very important to disentangle the models.

ILC is necessary!

SLIDE 22

Kentarou Mawatari (Osaka U.) PPP2019 - Kyoto - 2019.7.30 /23

BR(ττ) vs. BR(WW)

22

Synergy

• Higgs coupling precision measurements at the ILC
• direct searches for additional Higgs bosons at the LHC
• indirect searches in flavor experiments

SLIDE 23

Kentarou Mawatari (Osaka U.) PPP2019 - Kyoto - 2019.7.30 /23

• 4. まとめと展望
• H-COUP v.1 was released in October, 2017.
• systematically calculates the renormalized 125GeV Higgs

couplings at one-loop EW+QCD in various extended Higgs models (singlet extension, THDMs, inert doublet model).

• H-COUP v.2 will be released very soon.
• systematically calculates the 125GeV Higgs decay branching

ratios at one-loop EW+QCD in various extended Higgs models (singlet extension, THDMs, inert doublet model).

• H-COUP v.3 ?
• other models? couplings/decays for additional Higgs bosons?
• other renormalization schemes?
• Higgs productions?
• …

23 Kanemura, Kikuchi, Mawatari, Sakurai, Yagyu [1803.01456, PLB] + [1906.10070] Kanemura, Kikuchi, Sakurai, Yagyu [1710.04603, CPC] e＋e−→hγ; Kanemura, Mawatari, Sakurai [1808.10268, PRD]

H-COUP webpage: http://www-het.phys.sci.osaka-u.ac.jp/~kanemu/HCOUP_HP1013/HCOUP_HP .html

精密測定によるヒッグスセクターの究明が新物理探索の鍵！