Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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BSM Physics in the lightof the new “MUON G-2” Result
Sven Heinemeyer, IFT (CSIC, Madrid)
virtual, 07/2021

1. Introduction
2. “Two Higgs Doublets are as natural as one”
3. “SUSY fits like a glove”
4. “There’s always the axion”
5. Conclusions
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

11. Introduction
The anomalous magnetic moment of the muon: aµ ≡ (g − 2)µ /2
Overview about the current experimental and SM (theory) result:theo,SMaexpµ − aµ≈ (25.1 ± 5.9) × 10−10 : 4.2 σ

Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

2theo,SMaexpµ − aµ≈ (25.1 ± 5.9) × 10−10 : 4.2 σ

Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

3theo,SMaexpµ − aµ≈ (25.1 ± 5.9) × 10−10 : 4.2 σ

Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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2. “Two Higgs Doublets are as natural as one” (2HDM)
Extension of the Z2 symmetry to fermions determines four types:u-typed-typeleptonstype IΦ2

Φ2

Φ2

type II

Φ2

Φ1

Φ1

type III (lepton-specific)

Φ2

Φ2

Φ1

type IV (flipped)

Φ2

Φ1

Φ2

Couplings to fermions:u-type (cAtt)

d-type (cAbb)

leptons (cAτ τ )type I

cot β

cot β

cot β

type II

cot β

tan β

tan β

type III/X (lepton-specific)

cot β

cot β

tan β

type IV/Y (flipped)

cot β

tan β

cot β

Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Barr-Zee diagrams:

Known since long:
Light A at high tan β can explain the (g − 2)µ result⇒ in type II and X: enhanced couplings to µ’s

Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Updated 2HDM results:[P. Ferreira, B. Goncalvez, F. Joaquim, M. Sher ’21]

Taking EWPO into account: ⇒ MH ± <∼ 200 GeV
type II: problems with b → sγ
⇒ only type X is in agreement with (g − 2)µ, EWPO and flavor observables⇒ Not taken into account here: h125 → AA . . .
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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3. “SUSY fits like a glove”→ quote by Bill Marciano after the BNL result came out in 2001

Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Simplest SUSY realization: the MSSM
Superpartners for Standard Model particles⇒ large uncolored / EW sector
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Neutralinos and charginos:
Higgsinos and electroweak gauginos mix
charged:+ +W̃ +, h̃+→χ̃u1 , χ̃2 ,− −W̃ −, h̃−χ̃→1 , χ̃2dDiagonalization of the mass matrix:X = √∗√

M2

2 sin β MW

2 cos β MW⊤

Mχ̃− = V X U⇒ charginos: mass eigenstates

†




=

µ

mχ̃±
1

0



 ,



0 

mχ̃±
2

mass matrix given in terms of M2, µ, tan βSven Heinemeyer – 20th Lomonosov conference, 21.08.2021

9neutral:0 0
0 0 0 0
h̃
,
h̃
γ̃,
Z̃,
→
χ̃
u
1, χ̃2 , χ̃3, χ̃4d| {z }

W̃ 0, B̃ 0

Diagonalization of mass matrix:


M1



0
Y=

 −M s cos βZ W
MZ sW sin β0−MZ sW cos β

MZ cW cos β

M2
MZ cW cos β0−MZ cW sin β−µ

MZ sW sin β −MZ cW sin β 

 ,

−µ



0

Mχ̃0 = N∗ Y N† = diag(mχ̃0 , mχ̃0 , mχ̃0 , mχ̃0 )
1

2

3

4

⇒ neutralinos: mass eigenstatesmass matrix given in terms of M1, M2, µ, tan β⇒ only one additional parameter⇒ MSSM predicts mass relations between neutralinos and charginos
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Scalar lepton sector of the MSSM
Charged slepton mass matrices

2 + m2 + DT
M
l1
˜
l


M˜2l = 

ml Xl

lL

ml Xl

M˜2 + m2
l + DTl2
lR





θl̃



2
m
 ˜

−→ 

l1

0



0 

2
m˜
l2

with
Xl = Al − µ tan β

Sneutrino mass
2 + DT
m2
=
M
ν
ν̃l
˜
l
L

Simplifying assumption: M˜l and M˜l identical for all three generations
L

R

Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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SUSY can easily explain the deviation in aµ :Feynman diagrams for MSSM 1L corrections:
µ

ν̃µ

χ̃i
γ

µ
µ

χ̃j0

µ̃a

χ̃i

γ

µ

µ̃b

− Diagrams with chargino/sneutrino exchange− Diagrams with neutralino/smuon exchange
Enhancement factor as compared to SM:µ − χ̃±i − ν̃µ : ∼ mµ tan βµ − χ̃0j − µ̃a : ∼ mµ tan βSven Heinemeyer – 20th Lomonosov conference, 21.08.2021

m2
αSM, EW 1L: π 2µ
M

W
m2
α
MSSM, 1L: π 2 µ × tan β
MSUSY

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SUSY corrections at 1L:−10
aSUSY,1L
≈
13
×
10
µ

100 GeVMSUSY!2tan β sign(µ)

MSUSY (= mµ̃ = mν̃ = mχ̃): generic SUSY mass scaleaSUSY,1L= (−100 . . . + 100) × 10−10µtheo,SMaexp≈ (28 ± 7.4) × 10−10µ − aµ⇒ SUSY could easily explain the “discrepancy”⇒ aµ can provide upper limits on the EW masses(by requiering agreement at the 95% C.L.)

Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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SUSY corrections at 1L:−10
aSUSY,1L
≈
13
×
10
µ

100 GeVMSUSY!2tan β sign(µ)

MSUSY (= mµ̃ = mν̃ = mχ̃): generic SUSY mass scaleaSUSY,1L= (−100 . . . + 100) × 10−10µtheo,SMaexp≈ (28 ± 7.4) × 10−10µ − aµ⇒ SUSY could easily explain the “discrepancy”⇒ aµ can provide upper limits on the EW masses(by requiering agreement at the 95% C.L.)

If SUSY exists, it should fix (g − 2)µ !
⇒ there must be light EW SUSY particles!
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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The general idea:[M. Chakraborti, S.H., I. Saha ’20, ’21]

− scan the relevant EW SUSY parameter space− impose all relevant experimental constraints:− (g − 2)µ− Dark Matter relic density− Dark Matter direct detection− LHC searches for EW particles− Dark Matter relic density requires a mechanism to reduce the density
in the early universe− bino/wino DM with chargino co-annihilation− bino/wino DM with slepton co-annihilation− higgsino DM− wino DM− obtain lower and upper limits on the various EW particle masses− evaluate the prospects for future searches
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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(g − 2)µ constraint: (GM2Calc)
old: ∆aold= (28.0 ± 7.4) × 10−10µ= (25.1 ± 5.9) × 10−10
new: ∆anewµ⇒ some results for ∆anewµ (≡ ∆aµ)some results only available for ∆aoldµold ≈ ∆anew − 2 σ new
Note: ∆aoldµ − 2σµ⇒ upper limits on SUSY masses are not expected to change

Dark Matter relic density: MicrOmegasorΩCDMh2 = 0.120 ± 0.001ΩCDMh2 ≤ 0.122(as taken from [Planck ’18] )Dark Matter direct detection: MicrOmegas
limit on spin independent scattering cross section (Xenon1T)[Xenon collab. ’18]
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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LHC exclusion bounds (I) (as given for Simplified Model Spectra (SMS))⇒ all newly included into CheckMate [M.C & I.S.]
Exception: compressed spectra ⇒ direct application
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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LHC exclusion bounds (II) (as given for Simplified Model Spectra (SMS))⇒ all newly included into CheckMate [M.C & I.S.]
Exception: compressed spectra ⇒ direct application
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Possible scenarios:
1. bino/wino DM with chargino co-annihilation⇒ full relic DM constraint ⇒ updated with ∆anewµ
2. bino DM with slepton co-annihilation case-L⇒ full relic DM constraint ⇒ updated with ∆anewµ
3. bino DM with slepton co-annihilation case-R⇒ full relic DM constraint ⇒ updated with ∆anewµ
4. higgsino DM: mχ̃0 ≈ mχ̃0 ≈ mχ̃±
1

2

1
full relic DM constraint ⇒ mχ̃0 ∼ 1 TeV ⇒ (g − 2)µ not ok
1⇒ relic DM upper bound

5. wino DM: mχ̃0 ≈ mχ̃±
1

1

full relic DM constraint ⇒ mχ̃0 ∼ 3 TeV ⇒ (g − 2)µ not ok
1⇒ relic DM upper boundSven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Example I: χ̃±
1 -coannihilation: mχ̃0 -m˜
l plane:11

new (g − 2)µ⇒ important: l̃-pair production searches (10)Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Example I: χ̃±
1 -coannihilation: mχ̃0 -m˜
l plane:11

old (g − 2)µ⇒ important: l̃-pair production searches (10)⇒ naive application of LHC bounds fails
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Example II: l̃-coannihilation: mχ̃0 -mχ̃± plane:11

new (g − 2)µ0⇒ important: χ̃±1 χ̃2 production searches (5)Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Example II: l̃-coannihilation: mχ̃0 -mχ̃± plane:11

old (g − 2)µ0⇒ important: χ̃±1 χ̃2 production searches (5)⇒ naive application of LHC bounds fails
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Example III: higgsino DM: mχ̃0 -∆m plane:2old (g − 2)µ⇒ important: compressed spectra searches (11)⇒ right where the model prediction sits⇒ very powerful
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Example IV: wino DM: mχ̃± -τχ̃± plane:11

old (g − 2)µ⇒ important: disappearing track limit⇒ m(N)LSP <∼ 600 GeV⇒ allowed parameter space squeezed by DD limits and disapp. tracks
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Mini summary of the results:A) bino/wino DM with chargino co-annihilation
relic DM density 100% fulfilled⇒ m(N)LSP <∼ 600(650) GeV for new (and old) (g − 2)µB/C) bino DM with slepton co-annihilation
relic DM density 100% fulfilled⇒ m(N)LSP <∼ 550(600) GeV for new (and old) (g − 2)µD) higgsino DM: mχ̃0 ∼ mχ̃0 ∼ mχ̃± ∼ µ121relic DM density as upper limit (otherwise mχ̃0 ∼ 1 TeV)
1
⇒ m(N)LSP <∼ 500 GeV
E) wino DM: mχ̃0 ∼ mχ̃± ∼ M2
1

1

relic DM density as upper limit (otherwise mχ̃0 ∼ 3 TeV)
1
⇒ m(N)LSP <∼ 600 GeV⇒ predictions for future (e+ e−) colliders?!
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Compressed spectra at current and future colliders
Higgsino, wino and bino/wino DM:− current searches relevant− HL-LHC searches can cover some part of the parameter space− ILC/CLIC needed to cover these scenario
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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4. “There is always the axion”→ quote by Howie Baer on WIMP DM limits

Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Lagrangian and possible contributions (I):[taken from talk by JJ. Fan, g-2Days21]
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Lagrangian and possible contributions (II):[taken from talk by JJ. Fan, g-2Days21]

Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Allowed parameter space for case 1:[M. Buen-Abad, JJ. Fan, M. Reece, C. Sun ’21]cγγ /cµµ < 0, ma ∈ [40 MeV, 200 GeV]
fa
fa
< 15 . . . 25 GeV,
< 100 GeV
∼
cγγ
cµµ ∼
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Allowed parameter space for case 1:[M. Buen-Abad, JJ. Fan, M. Reece, C. Sun ’21]cγγ /cµµ < 0, ma ∈ [40 MeV, 200 GeV]
fa
fa
< 15 . . . 25 GeV,
< 100 GeV
∼
cγγ
cµµ ∼
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Lagrangian and possible contributions (III):[taken from talk by J. Fan, g-2Days21]
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Allowed parameter space for case 2:[M. Buen-Abad, JJ. Fan, M. Reece, C. Sun ’21]ma >∼ 2 GeV, cee/cµµ < 0fafa< 100 GeV,
< 25 GeV
∼
cµµ
cee ∼
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

for ma = 5 GeV
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Case 1:cγγ /cµµ < 0, ma ∈ [40 MeV, 200 GeV]
fa
fa
< 15 . . . 25 GeV,
< 100 GeV
∼
cγγ
cµµ ∼
Case 2:ma >∼ 2 GeV, cee/cµµ < 0fafa< 100 GeV,
< 25 GeV
∼
cµµ
cee ∼

for ma = 5 GeV⇒ axion couplings to SM must be unnaturally large!
⇒ only achieved by integrating out additional matter content⇒ consider full UV-complete model?!

Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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5. Conclusinos• new (g − 2)µ result confirms old result and deviation from the SM(g − 2)µ is real ⇒ (relatively) light EW particles• 2HDM: only type X can be in agreement with (g − 2)µ , EWPO, flavor>⇒ mA <∼ 50 GeV, tan β ∼ 40 ⇒ not taken into account (yet): h125 → AA

• MSSM:− scan the EW sector of the MSSM with all constraints:(g − 2)µ , DM relic density, DM DD, LHC EW searches− upper limits on EW masses ⇒ evaluate future prospects
LHC searches included via CheckMate ⇒ crucial!
• A) bino/wino DM with chargino coann. (DM full)B/C) bino DM with slepton coann. (DM full)D) higgsino eDM mχ̃0 ∼ mχ̃0 ∼ mχ̃± ∼ µ (DM upper limit)
121E) wino DM mχ̃0 ∼ mχ̃± ∼ M2 (DM upper limit)
1
1⇒ clear upper limits, m(N)LSP <∼ 600 GeV confirmed
compressed spectra: good HL-LHC prospects, but ILC/CLIC needed• Axions: in principle possible⇒ axion couplings to SM must be unnaturally large!
⇒ integrating out additional matter content, full UV-complete model?

Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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The (g − 2)µ experiment:

Coupling of muon to magnetic field : µ − µ − γ coupling"ū(p′ ) γ µ F1(q 2) +#i
σ µν qν F2(q 2) u(p)Aµ2mµSven Heinemeyer – 20th Lomonosov conference, 21.08.2021

F2(0) = aµ36Theory of (g − 2)µ :µµ− the light-by-light contribution:γ
2002: sign error discovered; since then stabilized
2021: confirmed by LQCDµqµ

− the hadronic vacuum contribution:q̄γ’direct’ e+ e− data:from CMD-II, SND, KLOE, BaBar (radiative return)⇒ agree relarively well (also with old e+e− data)⇒ tension with LQCD results
τ data:tended to be closer to experimental result
inclusion of γ-ρ mixing: agreement with e+e− [F. Jegerlehner, R. Szafron ’10 ]⇒ not used anymore
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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HVP summary:⇒ BMW20: difference to experimental data ∼ 1.5 σ
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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LHC searches: (as given for Simplified Model Spectra (SMS))
Decay via sleptons (3l)
0
±
+ −
χ̃±
χ̃
→
(
l̃
ν)(
l̃
l ) → 3l + E
/T ,
2
1

0
±
+ −
χ̃±
/T
1 χ̃2 → (l ν̃)(l̃ l ) → 3l + E(5)Decay via sleptons (2l)
−
+
−
χ̃+
χ̃
→
(
l̃
ν)(
l̃
ν) → 2l + E
/T ,
1 1
−
+ ν̃)(l− ν̃) → 2l + E
χ̃+
χ̃
→
(l
/T
1 1

(6)

Decay via gauge bosons
0
0
0
χ̃±
/T ,
1 χ̃2 → (W χ̃1)(Z χ̃1 ) → 3l + E(7a)−+χ̃0)(W − χ̃0) → 2l + E
χ̃+
χ̃
→
(W
/T
1
1
1 1

(8)

0
0
0
χ̃±
χ̃
→
(W
χ̃
)(Z
χ̃
/T ,
1
1 ) → 2l + jets + E
1 2

Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

(7b)

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Decay via Higgs bosons
0
0
0
χ̃±
/T
1 χ̃2 → (W χ̃1 )(hχ̃1 ) → l + bb̄ + E(9)l̃-pair production (2l)− 0l̃+ l̃− → (l+ χ̃0)(lχ̃1) → 2l + E
/T
1

(10)

Compressed spectra
0 → (W ∗χ̃0 )(Z ∗χ̃0 ) → 2l + Eχ̃±χ̃/T + ISR ,
1
1
1 2
− 0
l̃+l̃− → (l+ χ̃0/T + ISR
1)(l χ̃1) → 2l + E

(11)
(12)

Searches involving Staus⇒ all newly included into CheckMate [M.C & I.S.]
Exception: compressed spectra ⇒ direct application
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

40A) Bino/wino DM with chargino co-annihilation[M. Chakraborti, S.H., I. Saha ’20, ’21]

Parameter scan:
100 GeV ≤ M1 ≤ 1 TeV ,M1 ≤ M2 ≤ 1.1M1 ,
1.1M1 ≤ µ ≤ 10M1,
5 ≤ tan β ≤ 60,
100 GeV ≤ mL̃ ≤ 1 TeV,
mR̃ = mL̃ .
(latter condition only to make the analysis simpler, no relevant effect)

Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Results in the mχ̃0 -mχ̃± plane:11

old (g − 2)µnew (g − 2)µ⇒ compressed spectrum as expected⇒ clear upper limits, m(N)LSP <∼ 600(650) GeV confirmed
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Results in the mχ̃0 -m˜l plane:11

new (g − 2)µ⇒ important: l̃-pair production searches (10)Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Results in the mχ̃0 -m˜l plane:11

old (g − 2)µ⇒ important: l̃-pair production searches (10)⇒ naive application of LHC bounds fails
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Comparison with the compressed spectra searches:⇒ compressed spectrum avoids current bounds!

Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Results in the mχ̃0 -tan β plane:1old (g − 2)µnew (g − 2)µblack contour: (simplified) application of H/A → τ +τ −⇒ A-pole annihilation effectively excluded
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Results in the mχ̃0 -σpSI plane:1old (g − 2)µ⇒ larger µ values favored
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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B/C) Bino DM with slepton co-annihilation[M. Chakraborti, S.H., I. Saha ’20, ’21]

Parameter scan:
100 GeV ≤ M1 ≤ 1 TeV ,M1 ≤ M2 ≤ 10M1 ,1.1M1 ≤ µ ≤ 10M1,
5 ≤ tan β ≤ 60,
Case-L:M1 ≤ mL̃ ≤ 1.2M1,

M1 ≤ mR̃ ≤ 10M1.

Case-R:

M1 ≤ mR̃ ≤ 1.2M1,

M1 ≤ mL̃ ≤ 10M1.

⇒ here focus on Case-L

Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Results in the mχ̃0 -m˜l plane:11

old (g − 2)µnew (g − 2)µ⇒ compressed spectrum as expected⇒ clear upper limits, m(N)LSP <∼ 550(600) GeV confirmed
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Results in the mχ̃0 -mχ̃± plane:11

new (g − 2)µ0⇒ important: χ̃±1 χ̃2 production searches (5)Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Results in the mχ̃0 -m˜l plane:11

old (g − 2)µ0 production searches (5)⇒ important: χ̃±χ̃
1 2⇒ naive application of LHC bounds fails
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Results in the mχ̃0 -tan β plane:1old (g − 2)µnew (g − 2)µblack contour: (simplified) application of H/A → τ +τ −⇒ A-pole annihilation largely excluded
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

52D) Higgsino DM[M. Chakraborti, S.H., I. Saha ’21]

Parameter scan:
100 GeV ≤ µ ≤ 1.2 TeV ,1.1µ ≤ M1 ≤ 10µ ,1.1M2 ≤ µ ≤ 10µ ,5 ≤ tan β ≤ 60,
100 GeV ≤ mL̃, mR̃ ≤ 2 TeV,⇒ mχ̃0 ∼ mχ̃0 ∼ mχ̃± ∼ µ121Full DM relic density reached only for mχ̃0 ∼ 1 TeV⇒ incompatible with (g − 2)µ1

Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Results in the mχ̃0 -∆m plane:2old (g − 2)µ⇒ important: compressed spectra searches (11)⇒ right where the model prediction sits⇒ very powerful
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Results in the mχ̃0 -m˜l plane:11

old (g − 2)µ⇒ upper limit on slepton masses: m˜l <∼ 1.1 TeV
1Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Results in the mχ̃0 -mχ̃± plane:11

old (g − 2)µ⇒ important: compressed spectra searches (11)
0
∗ 0
∗ 0
⇒ χ̃±
⇒ m(N)LSP </T + ISR1 χ̃2 → (W χ̃1)(Z χ̃1) → 2l + E∼ 500 GeV
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

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Results in the mχ̃0 -tan β plane:1old (g − 2)µblack contour: (simplified) application of H/A → τ +τ −⇒ A-pole annihilation fully excluded
Sven Heinemeyer – 20th Lomonosov conference, 21.08.2021

57E) Wino DM[M. Chakraborti, S.H., I. Saha ’20, ’21]

Parameter scan:
100 GeV ≤ M2 ≤ 1.5 TeV ,1.1M2 ≤ M1 ≤ 10M2 ,1.1M2 ≤ µ ≤ 10M2 ,5 ≤ tan β ≤ 60,
100 GeV ≤ mL̃, mR̃ ≤ 2 TeV,⇒ mχ̃0 ∼ mχ̃± ∼ M2
1

1

Full DM relic density reached only for mχ̃0 ∼ 3 TeV⇒ incompatible with (g − 2)µ1

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Results in the mχ̃± -∆m plane:1old (g − 2)µ⇒ important: disappearing track limit⇒ m(N)LSP <∼ 600 GeV⇒ allowed parameter space squeezed by DD limits and disapp. tracks
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Results in the mχ̃± -τχ̃± plane:11

old (g − 2)µ⇒ important: disappearing track limit⇒ m(N)LSP <∼ 600 GeV⇒ allowed parameter space squeezed by DD limits and disapp. tracks
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Results in the mχ̃0 -m˜l plane:11

old (g − 2)µ⇒ m˜l <
∼ 1400(1200) GeV
1

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Results in the mχ̃0 -tan β plane:1old (g − 2)µblack contour: (simplified) application of H/A → τ +τ −⇒ A-pole annihilation largely excluded
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LHC exclusion bounds vs. HL-LHC exclusion bounds
not all channels available[YR18]⇒ exclusion reach can be important⇒ no CheckMate inclusion available . . .
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Direct production at e+e− colliders (ILC/CLIC)
wino/bino DM with chargino co-ann.
(open/full: ”old” (g − 2)µ )∓⇒ ILC has good prospects (particularly for χ̃±χ̃
1 1)⇒ CLIC can cover evertything
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Direct production at e+e− colliders (ILC/CLIC)
bino DM with slepton co-ann.
(open/full: ”old” (g − 2)µ )0)⇒ ILC can nearly covers full smuon channel (but not χ̃0χ̃
1 2⇒ CLIC can cover evertything
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