1Welcome to IHEPWelcome to IHEP

Introduction of IHEP

Yifang Wang

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Institute of High Energy Institute of High Energy PhysicsPhysics

A comprehensive and largest fundamental research center in China for:

– Particle physicsParticle physics– Astroparticle physicsAstroparticle physics– Accelerator technologies and applications Accelerator technologies and applications – Synchrotron radiation technologies and applicationsSynchrotron radiation technologies and applications

• Total Staff: ~ 1300 + ~400 PhD Students and postdocs

• Total budget/year: ~ 120M $

Established at 1950, and became an independent institute at 1973 . Established at 1950, and became an independent institute at 1973 .

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Research DivisionsExperimental Physics ： BESIII, Daya Bay, BELLE II, CMS,

ATLAS…

Particle Astrophysics ： cosmic-rays, astrophysics, neutrino physics, particle astrophysics…

Theory ： nuclear & particle physics, field theory, cosmology…

Accelerator: BEPC, high power proton accelerator, free electron laser, …

Multi-discipline Research: Beijing Synchrotron Radiation Lab., Nuclear Analysis Lab., …

Computing and Network

Applications

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2. BEPCII: High Lumi. Double–ring Collider

Build new ring inside existing tunnel. Two half new rings and two half old rings cross at two IR’s, forming a double ring collider.

BEPCIIBEPCII

History of tau-charm colliders

ADONE

?

BEPCII

CESRcBEPC

SPEAR

DORIS I

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The BESIII Detector

Be beam pipe

SC magnet, 1TMagnet yoke

MDC, 120 m

CsI(Tl) calorimeter, 2.5 %@1 GeV

TOF, 90ps

RPC

A total weight of 730t, ~30000 readout channels, data rate ~50Mb/s, ~1000 man*year, 30 M$

BESIII data taking status & planPrevious Data set BESIII Near future

J/psi BESII 58M 2009 ： 200M ， 2012 ： 1 B

Psi’ CLEO ： 28 M 2009 ： 100M, 2012 ： 0.5 B

Psi” CLEO ： 0.8 /fb 2010 ： 0.9/fb ， 2011 ： 1.9/fb

4040)/4160)& scan

CLEO ： 0.6/fb @ 4160)

2011 ： 0.5/fb @ 4040)2013 ： 3/fb

R scan & Tau BESII 2014

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Japan (1)Tokyo Univ.

US (6)Univ. of Hawaii

Univ. of Washington

Carnegie Mellon Univ. Univ. of Minnesota Univ. of Rochester

Univ. of Indiana

EUROPE (10)Germany: Univ. of Bochum,

Univ. of Giessen, GSI ， Mainz ， HIM

Russia: JINR, Dubna; BINP, Novosibirsk

Italy: Univ. of Torino ， Frascati Lab

Netherland ： KVI/Univ. of Groningen

BESIII collaboration

China(29)IHEP, CCAST, Shandong Univ., Univ. of Sci. and Tech. of China

Zhejiang Univ., Huangshan Coll. Huazhong Normal Univ., Wuhan Univ.Zhengzhou Univ., Henan Normal Univ.

Peking Univ., Tsinghua Univ. ,Zhongshan Univ.,Nankai Univ.

Shanxi Univ., Sichuan UnivSuzhou Uni., Hangzhou Normal Uni.

Hunan Univ., Liaoning Univ. Henan Uni. of Sci. & Tech.,

Nanjing Univ., Nanjing Normal Univ.Guangxi Normal Univ., Guangxi Univ.Hong Univ., Hong Kong Chinese Univ.

Korea (1)Souel Nat. Univ.

Pakistan (1)Univ. of Punjab

48 institutions

~ 300 collaborators

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Daya Bay experiment

Discovery of a new type of neutrino oscillation

Sin2213 = 0.092 0.016(stat) 0.005(syst)

5.2 s significance

Sin2213 = 0.092 0.016(stat) 0.005(syst)

5.2 s significance

Phys. Rev. Lett., 108, 171803 (2012)

North America (14)

BNL, Caltech, George Mason Univ., LBNL,

Iowa state Univ. Illinois Inst. Tech., Princeton,

RPI, UC-Berkeley, UCLA, Univ. of Houston,

Univ. of Wisconsin, Virginia Tech.,

Univ. of Illinois-Urbana-Champaign,

Asia (15) IHEP, Beijing Normal Univ., Chengdu Univ. of Sci. and Tech., CGNPG, CIAE, Dongguan Polytech. Univ., Nanjing Univ.,Nankai Univ.,

Shenzhen Univ., Tsinghua Univ., USTC, Zhongshan Univ., Hong Kong Univ.

Chinese Hong Kong Univ., Taiwan Univ., Chiao Tung Univ., National United Univ.

Europe (3)

JINR, Dubna, Russia

Kurchatov Institute, Russia

Charles University, Czech Republic

Daya Bay collaboration

~ 200 collaborators

AMS 神舟二号

嫦娥一号GRM

GRM概念设计

Astro-projects

SVOM

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Hard X-ray Modulation Telescope

-Realizing the sky scan with highest resolution and sensitivity.-Observing blak holes.

-Realizing the sky scan with highest resolution and sensitivity.-Observing blak holes.

to be launched in 2015

Sino-Italian ARGO experiment (RPC hall)

Sino-Japanese AS γ experiment (scintillation detector array)Sino-Italian ARGO experiment (part of RPC carpet)

Yang-Ba-Jin Cosmic-ray observatory~3TeV ~300GeV

ASγ scintillation detector

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Multi-discipline Researches

• Nano safety

• Material sciences

• Protein crystallography

• Environment science

Materials science

28%

Condense matter18%

chemistry25%

Life science13%

Earth science & environment

7%others9%

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BEPC

4w1

Diffuse ScatteringX-ray fluorescence

analysis

Topography

4B9

X-ray DiffractionSmall angle scattering

Photoemission SpectroscPopy

3B1

Lithography

3W1

Middle energy

4W1B

4W1A

4B9B

4B9A3B

1B

3B1A

3W1A

3W1B

4 wigglers and 13 beam lines. > 300 exp./year from > 100 institutions

Beijing Synchrotron Radiation Facility

140mA@2.2GeV

1W1A

XAFS1W1B

High-pressure diffraction

LIGA

VUV

Macromolecular

3B3

1w1

4w2

3B3

Soft X-ray Optics

ApplicationsMicro-PETMicro-PET

Industrial CTIndustrial CT

Accelerator for IrradiationAccelerator for Irradiation

Future Plan

• High energy accelerators– International collaboration: LHC,ILC,…

• Underground experiments– Next generation reactor neutrino exp.

– New exp. on Dark matter searches

• Surface experiments– Construction of the LHAASO exp.

• Space experiments– New exp. at the Chinese space station

A possible Future Neutrino Experiment for mass hierarchy

Daya Bay New exp. Detector: 20kt liquid scintillator

Energy reso.: 3% Scientific goal

Mass hierarchy Precision meas. of mixing

matrix elements Supernovae Geo-neutrino Atmospheric neutrinos Sterile neutrinos Exotic searches

23/4/21 西藏羊八井大型高海拔空气簇射观测站 LHAASO

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Large High Altitude Air Shower Observatory

地面

粒子阵列μ探测器

阵列水 C

阵列

LHAASO

广角 C

阵列

和

簇射芯

探测器

Other accelerator projects• Spallation neutron source （ 2011-2017）• ADS R&D （ 2011-2020）• Beijing light source R&D （ 2011-2016）

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Thanks

Hope you have a success meeting

Enjoy your stay in Beijing

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