Perspective from KEKPerspective from KEK

M.KobayashiM.Kobayashi

・・ Activities of KEKActivities of KEK・・ Japanese contribution to oversea activitiesJapanese contribution to oversea activities・・ Linear ColliderLinear Collider

Outline of KEKOutline of KEK

New legal status: New legal status:

Inter-University Research Institute CorporationInter-University Research Institute Corporation StructureStructure Institute of Particle and Nuclear StudiesInstitute of Particle and Nuclear Studies Institute of Materials Structure ScienceInstitute of Materials Structure Science StaffStaff physicist ~400, technician ~160physicist ~400, technician ~160 Budget Budget 280 10280 1088Yen + 50 10Yen + 50 1088Yen Yen (construction of J-parc)(construction of J-parc)

Belle at KEKBBelle at KEKB

KEKB PerformanceKEKB Performance(as of May 30)(as of May 30)

Highest Peak LuminosityHighest Peak Luminosity 1.322 101.322 103434cmcm-2-2

Highest Daily Int. LuminosityHighest Daily Int. Luminosity 944.2 /pb/day944.2 /pb/day Highest Weekly Int. LuminosityHighest Weekly Int. Luminosity 5.939 /fb/week5.939 /fb/week

Total Integrated LuminosityTotal Integrated Luminosity 265 /fb265 /fb

Continuous injection is working well for both rings Continuous injection is working well for both rings

969.40/pb/24hours

sin21eff= -0.96 ± 0.51

Large (3.5Large (3.5) discrepancy for B) discrepancy for BKKSS

KS SM: + 0.731 ± 0.056

History of History of AA and and SS

Belle

BaBarThis resultBelle 140fb1

B

Constraint on Constraint on --

2

sin1 (WA) and Belle’s 2

are consistentwith othermeasurements.

3 3 (()) from Bfrom B±±KK±±DD00/D/D00 Dalitz plots Dalitz plots A. Poluektov A. Poluektov et alet al

3 =81o±19o(45o)±13o±11o

D0KVub

D0K

Vcb

32

K

K

K2K CollaborationK2K Collaboration

Canada

France

Italy

Japan

Korea

Poland

Russia

Spain

Swiss

U.S.A.

K2K-I: Japan-US-Korea CollaborationK2K-II: From 2002 (after Super-K accident)

12/21

5~6x1012 (ppp)

1/16

10/76/23

20032003

K2K-IIK2K-II

12/23

20042004

2/15

Delivered P.O.T. Delivered P.O.T. (since March 1999)

1999 2000 2001

K2K-IK2K-I

20022002

DeliveredDelivered

POTPOTUsable Usable POT for POT for analysisanalysis

K2K-K2K-II

5.6x105.6x101919 4.8x104.8x1011

99

K2K-K2K-IIII

4.5x104.5x101919 3.8x103.8x1011

99

TotaTotall

10.1x1010.1x1011

99

8.9x108.9x1011

99

K2K Data K2K Data AccumulationAccumulation StatusStatus

Results from K2K-IResults from K2K-Ipublished in PRL90(2003)041801published in PRL90(2003)041801

Normalized by area

reconstructed E

Expectation w/o oscillation

Best Fit

from K2K

Observed: 56evt v.s. Expected: 80.1+6.2-5.4

Super-KAtm.

New Results from K2K-I + K2K-II will be New Results from K2K-I + K2K-II will be released at the NEUTRINO 2004 released at the NEUTRINO 2004

ConferenceConference

400MeV LINAC

3GeV RCS

50GeV MR

J-PARC (Joint project with JAERI)

NM-labK-arena

directio

n

As of Dec 2003

Linac

3 GeV

50 GeV

Materials + Life

Nuclear-Particle

Neutrino (plan)

Others

Salt Farms

Bldg. construction

Equip. constructionBeamtest

Bldg. construction

Equip. constructionBeamtest

Bldg. construction

Equip. constructionBeamtest

Bldg. construction

Equip. constructionBeamtest

Bldg. construction

Equip. constructionBeamtest

Bldg. construction

Equip. constructionBeamtest

Construction

Archelogical studies

Construction Schedule

Now

FY2001 FY2002 FY2003 FY2004 FY2005 FY2006 FY2007 FY2008

BeamConstruction Start

0

20

40

60

80

100

120

140

160

180

200

2000 2001 2002 2003 2004 2005 2006 2007 2008

KEK (Phase 1) KEK (ν)

Budget Profile as of Now(including future plans)

JAERIOku Yen

(Oku = 108)

JAERI : 864.7 Oku YenKEK Phase-1 : 490.1 Oku YenKEK ν : 159.6 Oku YenTotal : 1,514.4 Oku Yen

Neutrino Completion

Budget YearPhase 1 CompletionNow

57%

43%

SupplementalBudget

0

24

68

1012

1416

18108Yen~1M$

U.S./Japan Cooperation U.S./Japan Cooperation ProgramProgram

U.S./Japan cont.U.S./Japan cont.

CDFCDF 65.7 1065.7 108 8 YenYen

RHICRHIC 32.832.8

Rare K(FNAL)Rare K(FNAL) 5.4 5.4

LC R&DLC R&D 49.749.7

PDG groupPDG group 22.1 22.1

RIKEN BNL Research Center

from Report of Fourth Review Committee of the Japan/US from Report of Fourth Review Committee of the Japan/US CooperationCooperation

“ “A careful review of the Japan/US A careful review of the Japan/US Cooperation Program in the past quarter Cooperation Program in the past quarter century led us to conclude that the century led us to conclude that the success of the Program is outstanding and success of the Program is outstanding and should be highly appreciated. It should be should be highly appreciated. It should be emphasized that the Japanese researchers emphasized that the Japanese researchers owe the success greatly to the US owe the success greatly to the US institutions and scientists for their institutions and scientists for their generous cooperation and strong support. generous cooperation and strong support. We expect that strong tie between the We expect that strong tie between the Japanese and US scientists formed through Japanese and US scientists formed through this history of cooperation will lead to this history of cooperation will lead to further fruitful cooperation in the future” further fruitful cooperation in the future”

ＬＨＣＬＨＣContribution from JapanContribution from Japan LHC acceleratorLHC accelerator

118.5 10118.5 1088YenYen 　　　　　　　　 Super-conducting Q-magnetSuper-conducting Q-magnet

ATLAS detectorATLAS detector 32.1 1032.1 1088Yen + operation costYen + operation cost Solenoid CoilSolenoid Coil Muon ChamberMuon Chamber Vertex DetectorVertex Detector ElectronicsElectronics

ZEUS at HERAZEUS at HERA FundingFunding 15.7 108Yen (1988-2003)15.7 108Yen (1988-2003) Human contributionHuman contribution 19 (KEK, Tokyo-Met.U, TIT etc.)19 (KEK, Tokyo-Met.U, TIT etc.) DetectorDetector Global First Level TriggerGlobal First Level Trigger Uranium-Scintillator Calorimeter Uranium-Scintillator Calorimeter Hadron-Electron SeparatorHadron-Electron Separator Silicon Vertex DetectorSilicon Vertex Detector

Linear ColliderLinear Collider KEK has made R&D efforts since the early 1990’KEK has made R&D efforts since the early 1990’

s, especially since the mid-1990’s. s, especially since the mid-1990’s. In 1996 KEK started a strong collaboration with In 1996 KEK started a strong collaboration with

SLAC on a linear collider, especially on R&D on hiSLAC on a linear collider, especially on R&D on high power X-band RF sources and accelerating strgh power X-band RF sources and accelerating structures.uctures.

In 1997 the Accelerator Test Facility was completIn 1997 the Accelerator Test Facility was completed and started experiments on ultra-low emittanced and started experiments on ultra-low emittance beams, electron sources and beam profile mone beams, electron sources and beam profile monitors. itors.

Roadmap report (2003)Roadmap report (2003) CMS energy: 500 GeV (phase 1), >1 TeV (phase 2)CMS energy: 500 GeV (phase 1), >1 TeV (phase 2) X-band, warm structures, C-band as a backupX-band, warm structures, C-band as a backup Commissioning time: ~ 2013Commissioning time: ~ 2013 In agreement with international consensusIn agreement with international consensus

ACFA Established in 1996 Chair: D.D.Bhawaker (CAT,India) ALCSC Chair: Won Namkung (POSTECH, Korea)

ITRP Meeting 4ITRP Meeting 4 Held at KEK on May 25, 26Held at KEK on May 25, 26

　　→→ See Totsuka’s Closing TalkSee Totsuka’s Closing Talk

Avoid a slow start-up of the LCAvoid a slow start-up of the LC Otherwise we will have to start new Otherwise we will have to start new

projects before the LC; super-KEKB, multi-projects before the LC; super-KEKB, multi-MW neutrino beam, Hyper-K, etc.MW neutrino beam, Hyper-K, etc.

Present maturity of basic R&D warrants launch of Present maturity of basic R&D warrants launch of major industrialization effortsmajor industrialization efforts

Some aspects of these have already been an Some aspects of these have already been an integral part of past R&D, and will be intensifiedintegral part of past R&D, and will be intensified

We will aggressively promote all three below in We will aggressively promote all three below in parallel for the next 3–4 years.parallel for the next 3–4 years. Final stage R&DFinal stage R&D Further design optimizationFurther design optimization Industrialization and cost optimizationIndustrialization and cost optimization

KEK will strengthen the R&D efforts with close KEK will strengthen the R&D efforts with close collaboration and coordination with our old collaboration and coordination with our old partner SLAC and the GDI Central Teampartner SLAC and the GDI Central Team

If the warm technology is chosenIf the warm technology is chosen

KEK wishes to host a regional team of GDIKEK wishes to host a regional team of GDI Efficient use of (upgraded) ATF and GLCTAEfficient use of (upgraded) ATF and GLCTA Joint work with industryJoint work with industry

KEK wishes to bid for hosting the central KEK wishes to bid for hosting the central team, tooteam, too

Even if the cold technology is chosen, KEK Even if the cold technology is chosen, KEK will participate in R&D, as KEK has a will participate in R&D, as KEK has a strong SC group which has evolved since strong SC group which has evolved since the TRISTAN erathe TRISTAN era

Cont.Cont.

Fate of ITERFate of ITER Japanese future budgetary situationJapanese future budgetary situation Timely completion of J-PARC, etc.Timely completion of J-PARC, etc. LC should be a LC should be a globalglobal project with American, project with American,

European and Asian participationEuropean and Asian participation Convince Japanese peopleConvince Japanese people Reduce budget/countryReduce budget/country

(Much) less if LC is built offshore(Much) less if LC is built offshore We wish to keep domestic HEP activity, though more We wish to keep domestic HEP activity, though more

discussion will be neededdiscussion will be needed Less for the cold option, as a fewer number of Less for the cold option, as a fewer number of

accelerator people mayaccelerator people may participate in participate in constructionconstruction

Funding of the LC depends upon several Funding of the LC depends upon several factorsfactors

ConclusionConclusion

Activities of high energy physics in Activities of high energy physics in Japan is in good shapeJapan is in good shape

Community wishes to share the Community wishes to share the responsibility in the future responsibility in the future international collaborationinternational collaboration

KEK is willing to be an Asian center of KEK is willing to be an Asian center of the accelerator science, if requestedthe accelerator science, if requested