# Presentation: 852896

## HEP Program in Japan

- Introduction to KEK
- J-PARC status
- KEK’s roadmap of future program
-  program
- SuperKEKB
- ILC R&D
- Summary and conclusions

**June 4, 2008**
**FNAL User’s Meeting**
**Masa Yamauchi**
**KEK**

_**Outline**_

## KEK Current Activities

**KEK Current Activities**

**Photon Factory**

## Status of J-PARC

**RCS**

**MLF**

**Linac**

**Hadrons**

**Neutrinos**

**in 2008**

**in 2009**

**in 2009**

**Status of J-PARC**

**50 GeV MR**

## The roadmap is to produce the maximum and continuous science output and to meet future prospects for 

- ILC R&D

- Super KEKB

- J-PARC

- The roadmap is to produce the maximum and continuous science output and to meet future prospects for
- accelerator science.

**PF,PF-AR**
**upgrade**

_**KEK Roadmap**_ (July, 2007 : KEK Roadmap Panel led by F. Takasaki)

## Slide 5

## ~350 members from 12 Countries: Japan(66), US(58),  Canada(50),France(38), UK(37) Switzerland(31), Poland(22), Korea(13), Russia(12), Spain(11), Itary(9), Germany(2)

**Kamioka**

**T2K**

**J-PARC**

**Tokai**

**Phase 1 (0.60MW + SK)**
************** ********e****  appearance**
**Finite ********13 ****?**
************** ********x**** disappearance**
**Precise ********m****23****2****, sin****2****2**********

**(~50xK2K)**

**T2K: promising project in J-PARC**

**~350 members from 12 Countries: Japan(66), US(58),  Canada(50),France(38), UK(37) Switzerland(31), Poland(22), Korea(13), Russia(12), Spain(11), Itary(9), Germany(2)**

## : Dream Scenario

**Proton decay**

**T2K**
**(****2009****~)**

**Discovery**
******e**** app.**

**CPV search**

_**: Dream Scenario**_

**Neutrino &**
**Anti-Neutrino meas.**

## 1.66MW

**0.60MW**
**0.28 Hz**

**1.66MW**
**0.52 Hz**

** **

**0.91 MW**
**0.57 Hz**

** ****Shorten acceleration time **
** ****More RF system**
** ****Magnet power system**

** ****More beam per pulse**
** ****Operation of 3 GeV RCS**
**   ****in harmonic number =1**

**Plan for Improving Neutrino Beam Intensity**
**by Main-Ring Upgrade**

_**Linac : 181 MeV to 400 MeV**_

## KEKB and Belle

**KEKB and Belle**

## Achievement of the B Factories

**Achievement of the *****B***** Factories**

**Quantitative confirmation of the KM model**

***A*****f**** ~ 0**
***S*****f**** = 0.652****±0.039±0.020**

- Violation of CP symmetry !

- B0J/KS

- Belle, July 05

- Belle, July 05

*Discovery of CP violation in BB system*

## Possible Hints for New Physics in Flavor Decays 

- x=(0.97±0.29)%, y=(0.78±0.19)%

- Anomalous CPV in *b*→*s* transition?

**Possible Hints for New Physics in Flavor Decays **

- Theoretical calculations
- using *V*ub, m*d*,*K*

- Direct
- measurement

- Small inconsistency in
- the unitarity triangle?

- Opposite CP asymmetry between ***B***0 and ***B***±

## KEKB Upgrade Plan

**after 3 year shutdown**

## Deviation from SM

- Present upper
- limits

- Measurements
- at upgraded KEKB

- ( ab-1 )

- Reach of present
- B factories

- Reach of upgraded
- KEKB

- Relevant to
- baryogenesis?

- New source of CP
- violation

- CP asymmetries of penguin dominated B decays

- Searches for new sources of
- quark mixing and CP violation

## Precise measurements of  decays

- Precise measurements of  decays

- LFV violating  decay?

- Integ. Lum.( ab-1 )

- Reach of B factories

- Upgraded KEKB

- Upper limits

- 

- ->e

- >e

- T.Goto et al., 2007

## Internationalization of the project

** ****Belle : **
**  ****~400 physicists from 55 **
**  ****institutions in 14 countries.**

** ****It will be practical to build new detector by upgrading  **
**    ****existing Belle, but the experimental group will be a new   **
**    ****group, not a simple extension of the present Belle    **
**    ****collaboration. **

** ****New participants are all welcomed to work on detector **
**     ****construction/physics, and accelerator  construction.**

**KEK is willing to conduct this program as an endeavor **
**with strong international commitment.**

- _Internationalization of the project_

##  ILC R&D

_** **__**ILC R&D**_

**          ****R&D Items**
** ****Precise beam handling**
**              ****in ATF**
** ****Superconducting RF**
**              ****in STF**

##  Construction started in 1993

** ****Construction started in 1993**
** ****Achieved world smallest emittance ~2pm**

**ATF2: Realization of the nanobeam **
**(beam commissioning : October 2008)**

**Diagnostic line for **
**the extracted low emittance beam**

**ATF: Accelerator Test Facility**

## Laser-wire monitor

**Laser-wire monitor**

**ILC-like bunch extraction**

**(RHUL)**

**(KEK, SLAC)**

**DR-BPM upgrade**
**for more low emittance**

**(FNAL, SLAC)**

**Fast kicker development**

**(KEK, LLNL, DESY)**

## ATF2 beam line: under construction

_**ATF2 beam line: under construction**_

**ATF2 Construction Schedule**

***(IHEP, KEK, SLAC)***

***ATF2 beam line***

##       for quick startup of ILC SCRF, infra-structure development subdivided to

_***Phase 1 (2005 -2008)***_
**      ****for quick startup of ILC SCRF, ****infra-structure**** development subdivided to**
**   ****Phase 0.5 :  1 cavity in each short cryostat (cool down:Oct.2007&Feb.2008)**
**   ****Phase 1.0 :  4 cavities in each short cryostat (2008)**
**   ****Phase 1.5 :  replacement of cavities by improved gradient one (2008-2009)**
_***Phase 2 (2008 - 2010)***_
**      ****develop ****ILC Main Linac RF unit**
**   ****start design Apr. 2008, fabrication in 2009 and 2010, commissioning in 2011**
_***Phase 3 (2009 - 2013)***_
**         ****Industrialization of ILC Main Linac component**
**   ****develop industrialization technology in 2009 and 2010, **
**   ****fabrication of one more RF unit by the developed mass-production technology**
_***GDE S0 task (2006 - 2009) in parallel to phase 1, 2***_
**      ****develop ****ILC performance cavity (35MV/m, 90% yield)**

## R&D on cavity and cryomodule

**R&D on cavity and cryomodule**

**Gradient test of Ichiro #5 cavity at Jlab**

**STF vertical test**
**stand construction**

**Four cavities in assembly**

**One cavity cool-down**
**test**

## LHC

***International Collaboration on LHC by Japan***

-  Accelerator

- Experiments

***LHC***
***Project***

-  Search for Higgs and physics beyond Standard Model (SUSY...)
-  14 TeV pp collisions with L=1034cm-2s-1 and heavy-ion collisions.
-  4 major experiments: ATLAS, CMS, ALICE and LHCb
-  Construction 1994-2008, Start operation in 2008, Cost: ~5B$,

- Japan announced to support LHC in 1995
-  Total financial contribution ~160 M$

- KEK delivered 16 focusing quads.

- 1050 muon TGC chambers
-  + most of trigger electronics

- Central Solenoid

- 980 modules of
- Silicon tracker

- physics data analysis with
- Tier-2 center at U. Tokyo

-  ATLAS (7%) and ALICE

## KEK Testing Programs toward X-band CLIC

## Light Source
(According to the JSSRR recommendation)ERL is one of the most promising next generation machines
Science opportunity complementary to XFEL
Action before the ERL approval
Construct a compact ERL as the prototype and a THz light source
Continue operation with upgrade of PF/PF-AR before ERL operation
Completion/commissioning of J-PARC
Considering the world competition, it is urgent to upgrade neutron and muon facilities

- Light Source
- (According to the JSSRR recommendation)ERL is one of the most promising next generation machines
- Science opportunity complementary to XFEL
- Action before the ERL approval
- Construct a compact ERL as the prototype and a THz light source
- Continue operation with upgrade of PF/PF-AR before ERL operation
- Completion/commissioning of J-PARC
- Considering the world competition, it is urgent to upgrade neutron and muon facilities

**ERL**

- 5 GeV

**R&D for key components**
**Site: Inside the east exp. hall**

**Site: Inside the KEKB ring**

**Compact ERL**

- 60-200MeV

_**Roadmap  -Material and Life Science-**_

## Summary and Conclusions

**Summary and Conclusions**