2013 Joint Workshop of the France-Japanand France Korea Workshop

Yonsei University, June 4~5, 2013

Kihyeon Cho (KISTI) and Marc Verderi (LLR, N2P3)

Beam Simulations

Contents

• The French and Korean LIA teams

• Korean Group Activity– Geant4 at KISTI Supercomputer– Heavy Ion Beam Simulation– B physics

• French Group Activity

• Plan2

The French and Korean LIA teams

Members

• Korea Group– Kihyeon Cho (KISTI)– Kyungho Kim, Youngjoon Kwon (Yonsei U.)– Huiyoung Ryu, Taegil Bae, Junghyun Kim,

Soo-hyeon Nam (KISTI)

• France Group– Marc Verderi (LLR, IN2P3)

Theory

B Physics - Phenomenological Model- Lattice QCD

ExperimentBeam

Simulation

- CDF- Belle- BaBar

- Cyber HEP Lab- Geant4 -KISTI Supercomputer

For particle Physics

To find Higgs particle

• Theory-Experiment-Simulation

Geant4

The purpose (1/2)

• To collaborate on beam simulation based on Geant4• The Korean and French teams have indeed

developed Geant4 R&D working within Geant4 collaborations.

• The Koran team for their implication in the RISP (Rare Isotope Science Project).

• KISTI team has been working on Geant4 R&D (AIX, MT) and also Geant4 beam simulations for secondary beam.

• The French team has been working on beam simulations for particle physics accelerators (ATF2) and is moving to medical applications.

The purpose (2/2)

• We have also fundamental topics in High Energy Physics namely the B physics.

• B Physics is a major topic where the French IN2P3 team is pursuing its participation especially in BaBar experiment while Korean team in CDF and Belle/BelleII experiments.

• We have searched for rare decay mode to probe Standard Model and search for new physics, while the French team has continuing interest in CP violation.

• Therefore, we have still important breakthroughs are expected in these coming years for B physics theories.

Geant4 Collaboration

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Geant4 Spokesperson - Makoto Asai (SLAC)

KISTI colleagues have already made a big contribution in testingof recently released prototype of multi-threaded Geant4, and inenhancing our support on AIX operating system. We find KISTI is rapidly becoming one of the two major development and user-support centers in Asia, complementing with KEK in Japan

Geant4 @ KISTI Supercomputer

KISTI Supercomputing KISTI Supercomputing PortingPorting

• Sun Linux ClusterSun Linux Cluster– Geant4 ST– Geant4 MPI(ParGeant4)– Geant4 MT

• IBM AIX OSIBM AIX OS– Geant4-MT – Medical Application

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Tachyon(SUN)

Phase 2

Manufacture SUN Blade 6048

Architecture Cluster

Process model Intel (Nehalem)

# of Nodes 3,200 nodes

# of CPU cores25,600

(8 per node)

Rpeak

(Tflops)

300

324

Total Memory 76TB

Disk Storage 1.2PB

Tape Storage 2PB

Interconnection Network IB 4X QDR

Community Supports

• Geant4 & Indico homepage– https://hep.kisti.re.kr/geant4– https://hep.kisti.re.kr/indico

• Geant4 BBS(New)• Q&A Contact person: hep@kisti.re.kr

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The contents of collaboration between

France and Korea 1) We have exchanged visitors:- Kihyeon Cho visited France

- Date: Sep. 10 ~ 14, 2012- Geant4 Collaboration Meeting and discussions

- Marc Verderi visited Korea- Date: Oct. 29 ~ Nov. 2, 2012- International Geant4 Tutorial and workshop

2) We have performed the International Geant4 Tutorial together.

Heavy Ion Beam Simulation

Ref. Prof. Sunkee Kim

Sciences & Applications with rare isotopesSciences & Applications with rare isotopes

Nuclear Physics Exotic nuclei near the neutron drip line Superheavy Elements (SHE) Equation-of-state (EoS) of nuclear

matter Nuclear structure

Nuclear Astrophysics Origin of nuclei Paths of nucleosynthesis Neutron stars and

supernovae

Atomic/Particle physics

Atomic trap Fundamental

symmetries

Material science Production & Characterization of new materials -NMR / SR

Medical and Bio sciences Advanced therapy technology Mutation of DNA New isotopes for medical

imaging

Nuclear data with fast neutrons Basic nuclear reaction data for future nuclear

energy Nuclear waste transmutation Ref. Prof. Sunkee Kim

Medical Application

γ

γ

3. PET Image by Annihilation

1. Bragg Peak of Heavy Ion Beam

Rare Isotope Beam

2. Secondary Effect by Alpha Particle due to Heavy Ion Beam

Ref. Prof. Sunkee Kim

Heavy Ion Beam Simulation

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• Result of 2mm graphite target

Ref. Kyungho Kim

Reference Beam Study – dE/dx

• Brief result of reference beam study

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Color index◦ Proton

(Red)◦ Muon

(Green)◦ Pion (Blue)◦ Kaon

(Black)

Dots are not scaled!!!

Proton

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Plan of Heavy Ion Beam Simulation

• To study secondary beam using proton beam at 238U target

• To study interactions between 238U and 12C, …

French Group will benefit it.

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B physics in KoreaB physics in KoreaPhysics Experiments Theories

phi meson photoproduction

Spring-8CLAS

Effective Lagrangian approach

Kaon Semil-leptonic Form Factor

Belle LQCD using staggered Fermion

Rare B0 decays Belle Left-Right models

Mixing and CPV on Bs CDF

Left-Right models

Top Forward-backward asymmetry

CDF Model independent Analysis

CP violating dimuon charge asymmetrydue to B mixing

D0 Left-Right models

S.-h Nam et al. PLB 691, 238 (2010)S.-h Nam et al. PLB 691, 238 (2010)

K. Cho, S.-h Nam, [hep-ph] 1112.0091K. Cho, S.-h Nam, [hep-ph] 1112.0091

Y. J. Kim, K. Cho et al. CDF (2012)Y. J. Kim, K. Cho et al. CDF (2012)

J. H. Kim et al. PRD 86, 031101(R) (2012)J. H. Kim et al. PRD 86, 031101(R) (2012)

C.-H. Chen, S.-h. Nam, PLB 666, 462 (2008)C.-H. Chen, S.-h. Nam, PLB 666, 462 (2008)

K. Y. Lee, S.-h Nam, PRD 85, 035001 (2012)K. Y. Lee, S.-h Nam, PRD 85, 035001 (2012)

T. Bae, et al. PRL 109, 041601 (2012)T. Bae, et al. PRL 109, 041601 (2012)

H.Y. Ryu work in progressH.Y. Ryu work in progress

French Group Activity

French group activity (1/2)• French group involved in development for medical

beam instrumentation.– In the context of the “GDR MI2B”– Development of beam profilers (hodoscopes made of

plastic fibers + camera) used in CNAO (Pavie, Italy) and MedAustron (Wiener Neustadt, Austria).

• Start investigation of beam profilers based on OTR or secondary emission– For better tolerance to radiations

Hodoscope developed by M. Haguenauer & Co., now retired.

Fiber plane (other direction plane on the other side)

CCD camera

French group activity (2/2)• Has interest in simulating beam-line + instrument.

– Korean group developed such Geant4 ion beam line simulation that French people should benefit from

• Background from beam line and near environment to be simulated likely with event biasing methods– French group is developer of these techniques in Geant4

(with new ones for next G4 release), and could help in making these methods used by Korean team.

– Has experience of neutron background simulation at ATF2 using such class of techniques.

– Such methods are generic and could be applied elsewhere, in treatment planning for example.

Ex. of data/MC+biasing comparison of plastic scintillator waveform from neutrons from beam dump @ATF2

time (ns)

z (mm)

Test plot for new biasing methods in Geant4: interaction of are forced in a thin liquid-N2 volume.

Usual sim.Biased sim.

DataSim. (other sim.)

Plan

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We are going

1. To exchange visitors => To share visiting and exchange

researchersTo stay at IN2P3 or KISTI for co-

work2. To organize workshops3. To perform analyses in close

collaboration and work together4. To achieve common goals

Future Conferences• 2013 Geant4 user conference at the

physics-medicine-biology frontier– October 7-11, 2013 @ Bordeaux, France– http://geant4.in2p3.fr/2013

• Monte Carlo 2013– October 27-31, 2013 @ Paris, France

• IEEE/NSS/MIC/RTSD-2013– October 27 – November 2, 2013 @ Seoul,

Korea

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Thank you.