Physics Program at KEK-Tsukuba

October 21, 2010

Masa YamauchiIPNS, KEK

KEK, High Energy Accelerator Research Organization

J-PARC

TsukubaTokai

KEKB

Synch. lightfacilities

ATF

Accelerators at KEK

Lepto

n

Qu

ark

ne

nm

nt

Lepton CP Asymmetry Beyond Standard Physics

KEK-B

LHC

J-PARC

Power-Upgrade

[Origin of Force]

Higgs Particle [Origin of Mass]

Quest for Birth-Evolution

of Universe

Quest for UnifyingMatter and Force

Super-KEKB

International Linear Collider （ ILC ）

Quark CP Asymmetry

[Origin of Matter]

Quest for 6 QuarksQuest for Neutrinos

Scientific ActivitiesTechnology InnovationEncouraging Human

Resources

KEKB and Belle

5

Major achievements at Belle

Evidence for direct CP violation in B g K+p-

Evidence for direct CP violation in B g K+p-

Evidence for B g tnEvidence for B g tn

Observation of b g dgObservation of b g dg

Observation of B g K(*)ll Observation of B g K(*)ll

Decisive confirmation ofKobayashi-Maskawa model

Belle collaboration15 countries ~400 collaborators

Observation of CP violation in B meson system

Observation of CP violation in B meson system

Measurements ofCP violation in B g fKs, h’Ks etc.

Measurements ofCP violation in B g fKs, h’Ks etc.

Discovery of X(3872)

Discovery of X(3872)

Evidence for D0 mixingEvidence for D0 mixing

Observation of direct CP violation in B g p+p-

Observation of direct CP violation in B g p+p-

Possible hints for NP?Anomalous CPV in b→s processes?

Theo

retic

al c

alcu

latio

ns

usin

g V

ub, D

md,e

K

Directmeasurement

Anomaly in B→K*ll decay?

SM

Inconsistency in unitarity triangle? Unexpectedly large D0D0 oscillation

Difference in CPV between B0 and B±

Suggest new physics contributing to b→s transition.

Suggest new physics contributing to BB (DD) transition.

Need x50 statistics to clarify new physics.

e- 2.3 A

e+ 4.0 A

x 40 Gain in Luminosity

SuperKEKB

Colliding bunches

Damping ring

Low emittance gun

Positron source

New beam pipe& bellows

Belle II

New IR

Replace long TRISTAN dipoles with shorter ones (HER)

TiN-coated beam pipe with antechambers

Redesign the HER arcs to squeeze the emittance

Add / modify RF systems for higher beam current

New positron target / capture section

New superconducting /permanent final focusing quads near the IP

Low emittance electrons to inject

Low emittance positrons to inject

J.W. Flanagan @ Belle PAC 2010.2.19

Design of main components_5• Bellows and gate valves with comb-type RF-shield

– Sure RF shielding, thermally strong– applicable to ante-chamber scheme – Finger-type for some cases, if flexibility is required.

• Trial models have been installed into the ring and tested.– Reduction in the temperature of bellows has been

demonstrated.• Copper RF shield will be used even for

aluminum-alloy beam ducts.

2010/2/16 KEKB Review (KEK) 82010/2/17

Bellows chamber RF-shield (gate valve)

Gate valve

Y. Suetsugu8

Belle Upgrade

New Dead time free readout and high speed

computing systems

ECLWave sampling + pure

CsI crystal(endcap) PIDThreshold Aerogel + TOF

→ 　 TOP + Aerogel-RICH

SVD4-lyr DSSD → 6lyr DSSD

(option: striplet / pixel )

CDCSuper small cell

Longer lever arm

KL/m detectionRPC → Scintillator

+SiPM(endcap)

Better background toleranceBetter performance

112007.3.1

June 23, 1995 : Minister of Monbusho, Kaoru Yosano, announced a contribution of 5 billion-yen to help finance the construction of the LHC at the CERN Council meeting.Japan was the first non-member country who expressed the contribution to the LHC project.In total Japan contributed 13.85 billion-yen.

文部大臣 与謝野　馨

CERN Director General Chris Lewellyn Smith達磨（片目！）Delegation of Japan at CERN Council

Japanese contribution to LHC

Dhama doll

Year 2008

122007.3.1

Near the interaction points, triplet quadrupole magnets focus the beam. Two types of superconducting magnets are separately developed and manufactured at KEK and Fermilab. Both magnets were assembled with common cryostat at Fermilab and then shipped to CERN.

Fermilab

KEK

Collision point

Inner Triplet Quadrupoles

Very successful US-Japan collaboration for the LHC construction!

Toward the LHC upgradeRecently the design group for High-Luminosity LHC is formed.KEK is contributing to the R&D for the two key technologies:

• High-field magnet (Nb3Al) and• Crab cavity,

in close collaboration with CERN and the other labs

JLABCI/DL

CI/DL KEK

KEK

BNL

SLAC

Nb3Al cable produced by NIMS-KEK collaboration.

Nb3Al has better performance then Nb3Sn at the high stress condition

Various designs of crab cavity

ATLAS detector upgrade plan2013 2014 2015 2016 2017 2018 2019 2020 2021 2022

High-Luminosity LHC 5x1034 cm-2s-1

ultimate design luminosity 1-2x1034 cm-2s-1

toward design luminosity 14TeV -1x1034 cm-2s-1

Phase 1 minor upgrade:• An additional pixel layer• Replacement of Inner Endcap muon chambers

Phase 2: Major upgrade: Complete replacement of the inner trackers (All-silicon tracker)

R&D activities in Japan

•R&D of radiation- tolerant sensors•Development of short strip detector module

•R&D of pixel sensors

• development of muon and combined triggers.

International Large Detector Concept

International Large Detector ConceptReconstruct events in terms of quarks, leptons, & gauge

bosonsReconstruct events in terms of quarks, leptons, & gauge

bosons

Thin and high resolution vertexingThin and high resolution vertexing

Particle Flow AnalysisParticle Flow Analysis

High resolution trackingHigh granularity calorimetryHigh resolution trackingHigh granularity calorimetry

Everything incl. HCAL inside SOL (B>3T)Everything incl. HCAL inside SOL (B>3T)

Main Physics/Detector R&D Areas at KEKMain Physics/Detector R&D Areas at KEK

TPCTPC

VTXVTX

W/Z separation by MjetW/Z separation by Mjet

CALCAL

PHY/OPTPHY/OPT

MDIMDIPHY/OPT ： Physics and detector optimizationPHY/OPT ： Physics and detector optimization

VTX ： Fine Pixel CCD R&DVTX ： Fine Pixel CCD R&D

TPC ： MPGD readout TPC R&DTPC ： MPGD readout TPC R&D

MDI/MECH ： Machine detector interface / StructureMDI/MECH ： Machine detector interface / Structure ILDILD 15

LOI: 695 signatories 32 countries 148 institutions

LOI: validated by IDAG in Sep. 2009 Moving on to TDR phase

Needs one order of magnitude better performance than existing collider detectors!

Needs one order of magnitude better performance than existing collider detectors!

KEK-related Activities for ILDKEK-related Activities for ILDTPCTPC

Large Prototype (LP1)Large Prototype (LP1)

Advanced Endplate R&D (just started!)Advanced Endplate R&D (just started!)

GEM panel R&DGEM panel R&D3 GEM panels from LC-TPC Asia Group3 GEM panels from LC-TPC Asia Group

PCMAG from KEK

Thickness of TPC end plate < 15% X0

Surface mount readout electronics (incl. DAQ)Power switching, power delivery and cooling

Test Beam @ DESY

Endplate from Cornell Endplate from Cornell

Readout electronics from LUND and CERN Readout electronics from LUND and CERN

Point resolution seems to meet performance goal

Point resolution seems to meet performance goal

CALCAL Multi-Pixel Photon CounterNovel

semiconductor photo-sensor

developed with Hamamatsu

Multi-Pixel Photon CounterNovel

semiconductor photo-sensor

developed with Hamamatsu

Sensor R&DSensor R&D

1 3 6 12 16 25 32 GeV

Electron energy spectra

2nd prototype test @ Fermilab in Sep 2008

Prototype TestsPrototype Tests

Tungsten scintillator strip sandwich CAL

CMB Telescopes

QUIET (phase I) POLARBEAR

CMB

mirrors in the shield box

DAQ

Receiver system

polarimeter chip Receiver system

Detector Technology Project (DTP)

J-PARC

ATLASBelle

ILC

12G

eVP

ST

RIS

TAN

Pix

el t

echn

olog

y

2D g

as d

etec

tor

New

pho

ton

dete

ctor

Liqu

id T

PC

Cry

ogen

ic d

etec

tor DAQ

ASIC

Mechatronics

Cryogenics

HEP and NP communitiesIMSS

Material Sciencecommunity

KEKDTP #5Qpix project

Future alternative to TimePix Functional pixels,

each equipped with

an independent TDC,

ADC and ToT. Collaboration with

the experts in the

industrial applications.

SUMMARY Physics program at KEK-Tsukuba:

KEKB → SuperKEKB upgrade x40 in luminosity to study NP in B, D, t decays Dismantling of machine and detector has started

as well as construction of new machine/detector components.

Energy frontier program LHC/ATLAS and their upgrade ILD at ILC

CMB measurement at QUIET and PolarBearDetector Technology Project provides unique

opportunity to make new measurements possible.

SuperKEKB

Synergy between flavor and energy frontier experiments

K-K mixing

Charm quark

CP violation in K system

Bottom quark and t lepton

B-B mixing

Top quark

CP violation in B system

New physics, SUSY??

Discoveries in flavor physics Discoveries in energy frontier

??