1. Super-KEKB Collaboration
2nd Open Meeting of the
Super-KEKB Collaboration
March 17-19, 2009
3-gokan, Seminar Hall
KEK

2. Welcome !

3. Super-KEKB Collaboration
Long way to come here
Beyond 1034 e+e- workshop (2000.6)
1st Super-KEKB workshop (2001.8)6th ( )
Joint Super B Factory workshop in Hawaii (2004.1)2nd (2005.4)
B Factories and New Measurements (2006.9)3rd (2008.1)
1st Open meeting for the proto-collaboration (2008.3)
2nd Open meeting for the proto-collaboration (2008.7)
1st Open meeting of the Super-KEKB collaboration ( )
E.O.I from 42 inst.
1st IB meeting today
Chair: Leo Piilonen
Let’s take a picture like this with Kobayashi-san.

4. High Energy Physics in the Next Decade
Energy frontier experiments
LHC, ILC, …
LHC
ILC
Higgs, SUSY, Dark matter,
New understanding of space-time…
B Factories, LHCb,
K exp., nEDM etc.
KEKB upgrade
CP asymmetry, Baryogenesis,
Left-right symmetry, New sources
of flavor mixing…
New particles
and new interactions
Three approaches to
New Physics
n exp., m LFV, t LFV,
gm-2, 0nbb …
Neutrino mixing/masses,
Lepton number non-conservation…
J-PARC
Lepton
physics
Quark flavor
physics

6. Summary of KEK Roadmap J-PARC KEKB Photon Factory ERL R&D 1st results
2007
2008
2009
2010
2011
2012
operation & completion of 1st goal
J-PARC
power upgrade
upgrading to Super-KEKB
KEKB
Photon Factory
& upgrade
operation
continue R&D and compact ERL
ERL R&D
construction
operation
1st results
LHC
LHC upgrade
ILC R&D
TDP1
lots and lots of R&D’s
TDP2 6

7. Luminosity Prospect Physics with O(1010) B & t 50ab-1 by ~2020
X50 present
Physics with O(1010) B & t
also D
L~8x1035 cm-2s-1
3year shutdown
for upgrade

8. Physics Reach at Super-KEKB/Belle
(~0.5ab-1)
5ab-1
50ab-1
DS(fK0)
0.22
0.073
0.029
DS(h’K0)
0.11
0.038
0.020
DS(KSKSKS)
0.33
0.105
0.037
DS(KSp0g)
0.32
0.10
0.03
Br(Xsg)
13%
ACP(Xsg)
0.058
0.01
0.005
C9 [AFB(K*ll)]
---
11% 4%
C10 [AFB(K*ll)]
Br(B+ → K+nn)
<9Br(SM)
33ab-1 for 5s discovery
Br(B+ →tn)
3.5s
10% 3%
Br(B+ →mn)
<2.4Br(SM)
4.3ab-1 for 5s discovery
Br(B+ → Dtn)
7.9%
2.5%
Br(t →mg)
<45
<30
<8
Br(t →mh)
<65
<20
<4
Br(t → 3m)
<209
<10
<1
Dsin2f1
0.026
0.016
0.012
DF2 (rp)
68°ー95° 3° 1°
DF3( Dalitz)
20° 7°
2.5°
DVub (incl.)
7.3%
6.6%
6.1%
0.01
0.1
0.3
0.03
Deviation from SM 1 10
100
Integ. luminosity (ab-1)
Present
exp. limits
5ab-1
50ab-1
CP asymmetry
in B→KKK, fK and h’K
　　　　　 ■　 　●　 　　　　★
(3s discovery lim.)
Search for H± in B→tn
50ab-1 assume
5s discovery
Sharpening your eyes where to look
Hints for NP workshop
Integ. Lum.（ ab-1 ）
Reach of B factories
Upgraded KEKB
Upper limits
CKM at 50ab-1
X10-9
Physics at Super B Factory (hep-ex/ ) being updated.

9. SuperKEKB will reach 8 × 1035 cm-2s-1
Crab crossing
New IR
b*y = σz = 3 mm
SuperKEKB
Crab cavities installed and undergoing testing in beam
e+ 9.4 A
e- 4.1 A
Studies also for low-emittance scheme has started.
Dampiing ring
The superconducting cavities will be upgraded to absorb more higher-order mode power up to 50 kW.
The state-of-art ARES copper cavities will be upgraded with higher energy storage ratio to support higher current.
Higher current
More RF
New vacuum system
+ Linac upgrade
The beam pipes and all vacuum components will be replaced with higher-current design.
will reach 8 × 1035 cm-2s-1

10. Super-Belle (Baseline)
ECL
Wave sampling + pure CsI crystal(endcap)
PID
Threshold Aerogel + TOF
→　TOP + Aerogel-RICH
KL/m detection
RPC → Scintillator
+SiPM(endcap)
Final design ?
How do we decide, and when ?
CDC
Super small cell
Longer lever arm
New Dead time free
readout and
high speed
computing systems
SVD
4-lyr DSSD →
2-lyr. DEPFET pixel + 4-lyr DSSD

11. Time Line We need make clear the Time line / Milestone
Near-term plan (preliminary)
Detector proposals (by summer 2009).
The final detector design by Dec
Detector proposals
Internal review
TDR
Actions to invite new collaborators
Kick-off meeting
(Dec 08)
2009 4 7 1 2 10 3 5 8 9 11 12 6
2008
2010
KEKB operation
We need make clear the Time line / Milestone
(also for accelerator design)

12. We must get ready before the G-Light !
Accelerator
High current scheme or Low emittance scheme
Detector
Finalization of detector design
Organization
Collaboration name ?
Funding
Phyiscs
Photodetector for E-PID
Need determine
the time line

13. Enjoy !