Introduction of IHEP

Institute of High Energy Physics Management system Theoretical Physics Institute of High Energy Physics Research Experimental Physics Astro-particle physics Accelerator Physics Multi-discipline research Applied tech. center Computer center Administration Employee: ~ 1400 Students： ~ 400 Visitors: ~ 400 Budget：~ 1.1 B RMB/year Support

Current and Future Projects Accelerator-based: BEPCII/BESIII  ? Underground Neutrino physics: Daya Bay  JUNO Cosmic-ray physics on surface: ASg/ARGO  LHAASO Astro-particle physics in space: HXMT  HERD International projects

A high lumi. e+e- collider at the t-c energy region BEPCII/BESIII: Operational since 2009 A high lumi. e+e- collider at the t-c energy region ADONE BEPCII CESRc BEPC SPEAR DORIS I

BESIII data taking status & plan Previous Data set BESIII Near future J/psi BESII 58M 2009：200M，2012：1 B Psi’ CLEO：28 M 2009：100M，2012：0.4 B Psi” CLEO：0.8 /fb 2010：0.9/fb，2011：2.6/fb y(4040)/y(4160) & scan CLEO：0.6/fb @ y(4160) 2011：0.4/fb @ y(4040) 2013：0.5/fb (4260), 0.5/fb (4360) R scan & Tau BESII 2013：1.5/fb (4260) BESIII will continue for the next 8-10 years

Daya Bay experiment

Mass Hierarchy by reactors: JUNO Daya Bay Huizhou Lufeng Yangjiang Taishan Status running planned approved Construction construction power/GW 17.4 18.4 Overburden ~ 700 m 选点 2 陆丰 惠州 大亚湾 Site Hong Kong Mass Hierarchy Mixing parameters Supernova neutrinos Geoneutrinos Sterile neutrinos Taishan:18.4 GW 2018/12/7 Yangjiang:17.4 GW

Yang-Ba-Jin Cosmic-ray observatory ~3TeV ~300GeV Sino-Italian ARGO experiment (RPC hall) Sino-Japanese AS γ experiment (scintillation detector array) Sino-Italian ARGO experiment (part of RPC carpet) ASγ scintillation detector

LHAASO：Approved by the government Equivalent to CD0 of US DOE 万 400

HXMT ---- Hard x-ray modulate telescope All sky x-ray survey Approved on March 2011, to be launched on 2014 On schedule up to now ME LE HE 单机：111台 质量：1021kg 信号：1881路 功耗：350W

HERD：Onboard China’s Space Station Charge detector: 2-layered Si+PIN. Charge measurement Shower Tracker: W+scintillation fibers Nucleon Tracker: scintillation fibers. ECAL: lepton calorimeter. e/γ energy. HCAL: hadron calorimeter. e/p discrimination and CR composition. PWO or BGO W+ CsI(Na) + Fiber + ICCD Neutron detector: B-doped plastic scintillator for delayed signals. Enhanced e/p discrimination.

International projects Energy frontier: LHC ILC Precision frontier: Panda BELLE II Comet Non-accelerator: AMS EXO

Research based on Synchrotron Radiation and spallation neutrons Nano safety and Nano medicine Material sciences Protein crystallography Environment science Medical imaging

Small angle scattering BEPCII 4w1 Diffuse Scattering X-ray fluorescence analysis Topography 4B9 X-ray Diffraction Small angle scattering Photoemission SpectroscPopy 3B1 Lithography 3W1 Middle energy 4W1B 4W1A 4B9B 4B9A 3B1B 3B1A 3W1A 3W1B 4 wigglers and 13 beam lines. > 300 exp./year from > 100 institutions Beijing Synchrotron Radiation Facility 1W1A XAFS 1W1B High-pressure diffraction LIGA VUV Macromolecular 3B3 1w1 4w2 Soft X-ray Optics

Spallation neutron source Phase I： 100 kW Phase II： 500 kW Start time: 2011 Completion time: 2017

ADS R&D First low β(=0.12) Spoke cavity successfully manufactured in China and passed vertical test. Other activities on track

BAPS: approved by government A 5GeV, 1284m light source, upgradable to ERL

Have a nice time in Beijing