1. LHC SUSY searches
after the Higgs discovery:
respecting the muon g-2
Sho IWAMOTO
13th Feb. 2013
HPNP 2013 at University of Toyama
References)
M. Endo, K. Hamaguchi, S. Iwamoto, and T. Yoshinaga [1303.4256]
The University of Tokyo, JAPAN

2. 2012
2/22

3. LHC
discovered
Higgs boson(?)!!
3/22

4. The Standard Model and The MSSM
MSSM (Minimal SUSY Standard Model)
 solves Hierachy problem.
 can provides Dark Matter candidate.
 can explain Muon anomaly.
Supersymmetry (SUSY)
But Not Found yet.
Standard Model Now Completed!
 Problems
 Hierarchy Problem, Dark Matter, muon anomaly, …
 Anxiety towards ultimate theory
4/22

5. The Standard Model and The MSSM
MSSM (Minimal SUSY Standard Model)
 solves Hierachy problem.
 can provides Dark Matter candidate.
 can explain Muon anomaly.
Supersymmetry (SUSY)
But Not Found yet.
Standard Model Now Completed!
 Problems
 Hierarchy Problem, muon anomaly, Dark Matter, …
 Anxiety towards ultimate theory
 mh = 126 GeV
Δ(mh)loop : large
 Not found yet.
(stop mixing parameter)
tree
[ATLAS-CONF-2012-109]
A Nightmare:
5/22

6. The Standard Model and The MSSM
MSSM (Minimal SUSY Standard Model)
 solves Hierachy problem.
 can provides Dark Matter candidate.
 can explain Muon anomaly.
Supersymmetry (SUSY)
But Not Found yet.
Standard Model Now Completed!
 Problems
 Hierarchy Problem, muon anomaly, Dark Matter, …
 Anxiety towards ultimate theory
 mh = 126 GeV
Δ(mh)loop : large
 Not found yet.
(stop mixing parameter)
tree
[ATLAS-CONF-2012-109]
A Nightmare:
The last(?) hope for detectable SUSY.
6/22

7. What We Will see:
SUSY spectrum should be .
motivated MSSM.
How to search?
― current status & future prospects.
1. Introduction
2. motivated MSSM
3. LHC v.s. motivated MSSM
 Current status
 Future prospects
4. Summary
C o n t e n t s
7/22

8. 2. Motivated MSSM
8/22

9. Muon g-2 Problem
 anomaly
Hagiwara, Liao, Martin, Nomura, Teubner [1105.3149]
can be explained with MSSM
9/22

10. (g-2)-motivated MSSM
MSSM current status

 LHC SUSY searches
 anomaly
 squarks & stau-sector
 & slepton ~ O(100)GeV.
 Gaugino:
(to simplify LHC analyses)
(approximate GUT relation)
10 TeV
1 TeV
100 GeV
The targets!
10/22

11. 3. MSSM v.s. LHC
11/22

12. Review: g-2 motivated MSSM
 squarks:
 sleptons:
 gaugino:
(approximate GUT relation)
10 TeV
1 TeV
100 GeV
Rest Params:
12/22

13. RESULT
(an extreme case : μ = 2 TeV)
13/22

14. Result: g-2 v.s. LHC current status
heavy
light
gaugino heavylight
Higgsino-free!
14/22

15. Result: g-2 v.s. LHC current status
heavy
light
gaugino heavylight
Excluded
by
jet search
Higgsino-free!
15/22

16. Result: g-2 v.s. LHC current status
heavy
light
gaugino heavylight
[No Gluino case]
Higgsino-free!
16/22

17. Details of Analyses
 jet search
 ATLAS 8TeV 5.8fb-1 [ATLAS-CONF-2012-109]
 2-6 hard jets + no lepton +
 Original bound :
 3-lepton search
 ATLAS 8TeV 13fb-1 [ATLAS-CONF-2012-154]
 Exact 3 leptons + + SM-like signal vetoes
(no b-jets, no lepton pairs near MZ, etc…)
 Degenerated regions
are not excluded.
(near the dotted lines)
17/22

18. Prospects
18/22

19. Result: g-2 v.s. LHC current status
Excluded
by
jet search
1σ
~1.3TeV
2σ
~1.8TeV
How can we search?
• Heavy gaugino
• Large μ-term
• Light sleptons
… future work.
19/22

20. 4. Summary
20/22

21. Summary of this talk
10 TeV
1 TeV
100 GeV
 126 GeV Higgs
 SUSY Not Found yet
 anomaly
Jet
search
Jet: ATLAS-CONF-2012-109
3L: ATLAS-CONF-2012-154
21/22

22. Summary of this talk
10 TeV
1 TeV
100 GeV
 126 GeV Higgs
 SUSY Not Found yet
 anomaly
How can we search?
• Heavy gaugino
• Large μ-term
• Light sleptons
… future work.
~1.3TeV ~1.8TeV
Jet
search
Jet: ATLAS-CONF-2012-109
3L: ATLAS-CONF-2012-154
22/22