55th ICFA Advanced Beam Dynamics Workshop on High Luminosity Circular e+e- Colliders – Higgs Factory (HF2014)

9 Oct 2014, 07:30 → 12 Oct 2014, 19:00 Asia/Shanghai

Qing QIN (Institute of High Energy Physics) , Weiren Chou (FNAL)

The 55th ICFA Advanced Beam Dynamics Workshop on High Luminosity Circular e+e- Colliders – Higgs Factory (HF2014) will take place October 9-12, 2014 in Beijing, China and be hosted by the Institute of High Energy Physics (IHEP), Chinese Academy of Sciences (CAS).  Go to the web page.

Thursday, 9 October

07:30 → 08:30 Registration

08:30 → 10:05 Plenary Session 1

Convener: Xinchou Lou

08:30 Welcome and introduction of IHEP(45’)

Speaker: Prof. Yifang Wang (IHEP)

Slides IHEP_status-HF2014.ppt

09:20 A new paradigm: Role of electron-positron and hadron colliders (40’+5’)

Speaker: Prof. Shouhua Zhu (PKU)

Slides HF2014.pdf

10:05 → 10:30 Coffee (25’)

10:30 → 12:00 Plenary Session 2

Convener: Philippe Lebrun

10:30 Status of FCC-ee physics studies (40’+5’)

Speaker: Alain Blondel (U. Geneva)

Slides Blondel-physics-FCC-ee.pptx Blondel-physics-FCC-ee-v2.pdf

11:15 Status of CEPC physics and detector studies (40’+5’)

Speaker: Prof. Yuanning Gao (THU)

Slides icfa-gao.pdf

12:00 → 14:00 Lunch

14:00 → 15:30 Plenary Session 3

Convener: Alain Blondel

14:00 Overview: FCC-ee (40’+5’)

Speaker: Dr Frank Zimmermann (CERN)

Slides Overview-FCC-ee.pptx

14:45 Overview: CEPC (40’+5’)

Speaker: Dr Qing Qin (IHEP)

Slides Overview_of_CEPC_Accelerator.pdf

15:30 → 16:00 Group photo & Coffee (30’)

16:00 → 17:30 Parallel Session 1: WG 1 – Parameters

Convener: Eugene Levichev, Frank Zimmermann

16:00 (1) Physics motivation and requirements

Speaker: Alain Blondel (U. Geneva)

Slides Blondel-requirements.pptx

slides-after-discussion Blondel-requirements-v2.pptx

16:30 (2) Choice of circumference, minimum & maxim energy, number of collision points, and target luminosity

Speaker: Dr Michael Koratzinos (U. Geneva)

Slides optimization.pptx

17:00 (3) Ring circumference and two rings vs one ring

Speaker: Prof. Richard Talman (Cornell U.)

Slides THT4A3_talk.pdf

16:00 → 17:30 Parallel Session 1: WG 2 – Optics

Convener: Kazuhito Ohmi, Yunhai Cai

16:00 (1) Overall consideration, main challenges and goals

Speaker: Yunhai Cai (SLAC)

Slides Cai_Analysis.pptx Cai_ChallengeGoal.pptx

16:22 (2) Single ring multi-bunch operation and beam separation

Speaker: Prof. Richard Talman (Cornell U.)

Slides THT4B2_talk.pdf

16:44 (3) Challenges and status of the FCC-ee lattice design

Speaker: Mr Bastian Harer (CERN)

Slides HF2014_BastianHarer_THT4B3.pptx

17:06 (4) Status of the CEPC lattice design

Speaker: Ms Huiping Geng (IHEP)

Slides StatusOfCEPCLatticeDesign.pptx

18:00 → 19:45 Special Joint Session with LCWS2014: WG 10 – “Green” Accelerators

Convener: Steve Peggs for HF2014, Hitoshi Hayano for LCWS2014

18:00 (1) Energy consumption and savings potential of CLIC

Speaker: Dr Philippe Lebrun (CERN)

Slides Talk_Energy_Consumption_and_Savings_CLIC_HF2014.pptx

18:21 (2) A green CEPC using the power of nuclear waste

Speaker: Dr Zhenchao Liu (IHEP)

Slides Zhenchao_LIU_Green_CEPC.pptx

18:42 (3) Sustainability for bosons: the need for an energy program for a future Higgs factory

Speaker: Mr Thomas Parker (ESS)

Slides THT5A3_talk.pptx

19:03 (4) HEP future: to be green, or not to be?

Speaker: Dr Denis Perret-Gallix (CERN)

Slides Denis_Perret-Gallix-final.pdf Denis_Perret-Gallix-final.pptx

19:24 (5) Current status of Green-ILC activities in Japan

Speaker: Takayuki Saeki (KEK)

Slides Saeki_LCWS14-GreenILC-v2.pdf

20:00 → 21:30 Reception

Friday, 10 October

08:30 → 10:00 Parallel Session 2: WG 1 – Parameters

Convener: Eugene Levichev, Frank Zimmermann

08:30 (4) Beam-beam effects in high-energy colliders: crab waist vs. head-on

Speaker: Dmitry Shatilov (BINP)

Slides Beam-beam_cw_vs_head-on.ppt

09:00 (5) Optimizing beam intensity, number of bunches, bunch charge, and emittance

Speaker: Prof. Chuang Zhang (IHEP)

Slides HF_Optimization_ZC.ppt

09:30 (6) Polarization issues in FCC-ee collider

Speaker: Eliana Gianfelice (FNAL)

Slides slides.pdf

08:30 → 10:00 Parallel Session 2: WG 2 – Optics

Convener: Kazuhito Ohmi, Yunhai Cai

08:30 (5) Analysis of nonlinear dynamics

Speaker: Yunhai Cai (SLAC)

Slides Cai_Analysis.pptx

08:52 (6) Dynamic aperture optimization in SuperKEKB

Speaker: Dr Yukiyoshi Ohnishi (KEK)

Slides DynamicAperture_SuperKEKB.pdf

09:14 (7) The effect of IR imperfection on dynamic aperture in SuperKEKB / dynamic aperture study of CEPC

Speaker: Hiroshi Sugimoto (KEK)

pdf HF2014_Talk_HSugimot.pdf

09:36 (8) Beam lifetime and Injection consideration

Speaker: Mr Xiaohao Cui (IHEP)

Slides Beam_Lifetime_and_Injection_Consideration.pptx

10:00 → 10:30 Coffee (30’)

10:30 → 12:00 Parallel Session 3: Joint Session of WG2 and WG3

Convener: WG 2 – Optics (Conveners: Kazuhito Ohmi, Yunhai Cai) WG3 – IR and MDI (Conveners: Michael Sullivan, Yoshihiro Funakoshi)

10:30 (9) CEPC IR optics

Speaker: Mr Yiwei Wang (IHEP)

Slides CEPC_interaction_region_design_(Yiwei_Wang_10_Oct_2014).pdf CEPC_interaction_region_design_(Yiwei_Wang_10_Oct_2014).pptx

11:00 (10) Status of the FCC-ee interaction region design

Speaker: Mr Roman Martin (CERN)

Slides FRT2B2_presentation.pdf

11:30 (11) Crab waist interaction region

Speaker: Dr Anton Bogomyagkov (BINP)

Slides Bogomyagkov-CrabWaist-IR.pdf

10:30 → 12:00 Parallel Session 3: WG 1 – Parameters

Convener: Eugene Levichev, Frank Zimmermann

10:30 (7) Constraints on the FCC-ee lattice from the compatibility with the FCC hadron collider

Speaker: Mr Bastian Harer (CERN)

Slides HF2014_Bastian_Haerer_FRT2A1.pptx

11:00 (8) Polarization issues and schemes for energy calibration

Speaker: Ivan Koop (BINP)

Slides Koop-Polarization-Energy-Calibration.pdf

11:30 (9) Optimizing costs of construction and operation, possible construction time line

Speaker: Dr Weiren Chou (FNAL)

Slides Weiren_Chou_Costs_and_planning.pptx

12:00 → 14:00 Lunch

13:30 → 15:30 Parallel Session 4: WG 3 – IR and MDI

Convener: Michael Sullivan, Yoshihiro Funakoshi

13:30 (1) SuperKEKB background simulations (including issues for detector shielding)

Speaker: Hiroyuki Nakayama (KEK)

Slides 20141010_HF2014.pptx

14:15 (2) Beam-beam limit vs. number of IPs and energy II: scaling law

Speaker: Ming Xiao (IHEP)

Slides Beam-Beam(gao).ppt

14:00 → 15:30 Parallel Session 4: WG 2 – Optics

Convener: Kazuhito Ohmi, Yunhai Cai

14:00 (12) Beamstrahlung and energy acceptance

Speaker: Dr Kazuhito Ohmi (KEK)

Slides BSTRHL_ohmi.pdf BSTRHL_ohmi.pptx

14:22 (13) Interaction region magnets

Speaker: Dr Eugenio Paoloni (INFN)

Slides IR_Magnets_HF2014.pdf

14:44 (14) Beam-beam effects in the CEPC

Speaker: Mr Yuan Zhang (IHEP)

Slides icfa-1410-zhangy.pptx

15:06 (15) Wide-band long-focus optics for detection systems infrared synchrotron accelerator diagnostics

Speaker: Dr Anatoly Maltsev (JINR)

Slides A.MALTSEV_FRT3B4.pdf

15:30 → 16:00 Coffee (30’)

16:00 → 17:30 Parallel Session 5: WG 3 – IR and MDI

Convener: Michael Sullivan, Yoshihiro Funakoshi

16:00 (3) Beam-beam limit vs. number of IPs and energy I: beam-beam simulation

Speaker: Dr Kazuhito Ohmi (KEK)

Slides BBLIMHF_ohmi.pdf BBLIMHF_ohmi.pptx

16:45 (4) Long-range beam-beam interaction with the bunch train operation

Speaker: Mr David Rice (Cornell U.)

Slides LRBBI with bunch trains

16:00 → 17:30 Parallel Session 5: WG 4 – SR and Shielding

Convener: John Seeman, Marica Biagini

16:00 (1) Monte-Carlo simulation of synchrotron radiation in the design of CEPC vacuum chamber

Speaker: Mr Zhongjian Ma (IHEP)

Slides Monte-Carlo_simulation_of_synchrotron_radiation_in_the_design_of_CEPC_vacuum_chamber.pptx

16:22 (2) Vacuum system requirements for a HF e+e- accelerator

Speaker: Mr Roberto Kersevan (CERN)

Slides FRT4B2_-_HF2014_-_R_Kersevan.pptx

16:44 (3) Synchrotron radiation effects in the HF injector

Speaker: Dr Yannis Papaphilippou (CERN)

Slides HF2014_FCCee_SR.pdf

17:06 (4) Shielding of Electronics in the Tunnel

Speaker: Luigi Salvatore Esposito (CERN)

Slides HF2014.v5.pptx

Saturday, 11 October

08:30 → 10:00 Jointed Session 6: Joint session of WG 3 and WG4 – IR, MDI and shielding

Convener: Michael Sullivan, Yoshihiro Funakoshi

08:30 (5) Choice of L* I: SR and other issues (Joint with WG4)

Speaker: Michael Sullivan (SLAC)

Slides SR_Issues_for_CEPC_IR.pptx

09:00 (6) Choice of L* II: IR optics and dynamic aperture

Speaker: Dr Eugene Levichev (BINP)

Slides Levichev_HF14_Lstar.pptx

09:30 (7) Choice of L* III: requirement from detector

Speaker: Dr Gang Li (IHEP)

Slides LIGang.MDI.pdf

08:30 → 10:00 Jointed Session 6: Joint session of WG3 and WG 4 – SR, MDI and Shielding

Convener: John Seeman, Marica Biagini

09:14 (7) Synchrotron radiation absorption and vacuum issues in the IR

Speaker: Dr John Seeman (SLAC)

Slides SAT1B3_talk.pptx

09:36 (8) Infrared synchrotron methods and systems for monitoring and controlling particle beams in real time

Speaker: Ms Marina Maltseva (TENZOR)

Slides M.MALTSEVA_ST1B4.pdf

10:00 → 10:30 Coffee (30’)

10:30 → 12:00 Parallel Session 7: WG 3 – IR and MDI

Convener: Michael Sullivan, Yoshihiro Funakoshi

10:30 (8) Lost particles in the IR and Touschek effects

Speaker: Dr Manuela Boscolo (INFN)

Slides mboscolo_HF2014.pdf

11:15 (9) Detector beam background simulations for CEPC

Speaker: Dr Hongbo Zhu (IHEP)

Slides CEPC_beam_background.pdf CEPC_beam_background.pptx

10:30 → 12:00 Parallel Session 7: WG 5 – Superconducting RF

Convener: Yoshiyuki Morita, Sergey Belomestnykh

10:30 (1) General approach to FCC SRF system

Speakers: Erk Jensen (CERN) , Dr Frank Zimmermann (CERN)

Slides EJ_FCCeeRF_HF2014_Beijing_Oct_2014.pptx

10:52 (2) General approach to CEPC SRF system

Speaker: Dr Jiyuan Zhai (IHEP)

Slides HF2014_WG5_CEPC_SRF_Zhai.pptx

11:14 (3) 704 MHz BNL3 cavity as an option for CEPC/FCC

Speaker: Wencai Xu (BNL)

Slides 704_MHz_BNL3_cavity_as_an_option_for_CEPCFCC-final.pptx

11:34 (4) Discussion

12:00 → 14:00 International Organizing Committee (IOC) meeting

12:00 → 14:00 Lunch

14:00 → 15:30 Parallel Session 8: WG 5 – Superconducting RF

Convener: Yoshiyuki Morita, Sergey Belomestnykh

14:00 (5) High power coupler

Speaker: Eiji Kako (KEK)

Slides Input_Couplres_for_Higgs_Factory_(Kako)_Oct._11,_2014.pdf Input_Couplres_for_Higgs_Factory_(Kako)_Oct._11,_2014.pptx

14:22 (6) HOM damper hardware considerations for future energy frontier circular colliders

Speaker: Dr Sergey Belomestnykh (BNL)

Slides HOM_damper_hardware.pptx SRF_20140819.pptx

14:44 (7) Tuners, operating experience and performance recovery

Speaker: Prof. Yoshiyuki Morita (KEK)

Slides OtherIssues_YoshiyukiMorita.pptx

15:06 (8) Discussion

14:00 → 15:30 Parallel Session 8: WG 6 – Injectors and Injection

Convener: David Rice, Yannis Papaphilippou

14:00 (1) CEPC injector

Speaker: Prof. Chuang Zhang (IHEP)

Slides CEPC_Booster_ZC.ppt

14:22 (2) FCC-ee injector

Speaker: Dr Yannis Papaphilippou (CERN)

Slides HF2014_FCCee_inj.pdf

14:44 (3) Maintaining polarization in synchrotrons

Speaker: Ivan Koop (BINP)

Slides Koop-Polarization-Maintaining.pdf

15:06 (4) Discussion

15:30 → 16:00 Coffee (30’)

16:00 → 17:30 Parallel Session 9: WG 6 – Injectors and Injection

Convener: David Rice, Yannis Papaphilippou

16:00 (5) Topoff injection at PEP2

Speaker: Dr John seeman (SLAC)

Slides SAT4A1_talk.pptx

16:22 (6) Injection with Pretzels at CESR

Speaker: Mr David Rice (Cornell U.)

Slides Rice_Injection_into_Pretzels.pdf

16:44 (7) Lattice optimization for Top-Up injection

Speaker: Prof. Richard Talman (Cornell U.)

Slides SAT4A3_TALK.PDF

17:06 (8) Discussion

16:00 → 17:30 Parallel Session 9: WG 7 – Orbit and Beam Stability

Convener: John Byrd, Gang Xu

16:00 (1) Impedance and collective effects of CEPC

Speaker: Ms Na Wang (IHEP)

Slides Beam_Instability_CEPC.pdf

16:45 (2) Discussion

19:00 → 21:00 Banquet

Sunday, 12 October

08:30 → 10:00 Parallel Session 10: WG 8 – Polarization

Convener: Ivan Koop

08:30 (1) Transverse polarization for energy calibration at Z-peak

Speaker: Dr Michael Koratzinos (U. Geneva)

Slides transv_polarization.pptx

08:52 (2) Longitudinal polarization and acceleration of polarized beams

Speaker: Ivan Koop (BINP)

Slides Koop-Longitudinal-Polarization.pdf

09:14 (3) FCC-ee beam energy measurement suggestion

Speaker: Nickolai Muchnoi (BINP)

Slides nickolai_muchnoi.pdf

09:36 (4) Possible applications of wave-beam interaction for energy measurement and obtaining of polarization at FCC e+e-

Speaker: Dr Sergei Nikitin (BINP)

Slides CorrectPresCHI.pptx

08:30 → 10:20 Parallel Session 10: WG 9 – Instrumentation and Control

Convener: Michiko Minty, Hermann Schmickler

08:30 (1) Lessons learned from the B-Factories and implications for a high-luminosity circular e+e- Higgs factory

Speaker: Prof. Yoshihiro Funakoshi (KEK)

Slides HF2014Funakoshi.pptx

09:00 (2) Instrumentation and control at large colliders

Speaker: Manfred Wendt (CERN)

Slides WG9_MWendt.pptx

09:50 (3) Beam instrumentation of CEPC

Speaker: Dr Junhui Yue (IHEP)

Slides Instrumentation_of_CEPC.pptx

10:00 → 10:30 Coffee (30’)

10:30 → 12:00 Summary Session 1 (Chair: Qing Qin)

10:30 Physics opportunities

Speaker: Prof. Nima Arkani-Hamed (IAS)

11:15 WG 1

Speakers: Dr Eugene Levichev (BINP) , Dr Frank Zimmermann (CERN)

Slides Summary_WG1_parameters.pptx

12:00 → 14:00 Lunch

14:00 → 15:30 Summary Session 2 (Chair: Qing Qin)

14:00 WG 2

Speakers: Dr Kazuhito Ohmi (KEK) , Dr Yunhai Cai (SLAC)

Slides SummaryWG2.pptx

14:15 WG 3

Speakers: Michael Sullivan (SLAC) , Prof. Yoshihiro Funakoshi (KEK)

Slides PartialSummaryOfWG3.pptx Working_Group_3_summary_v2.pptx

14:30 WG 4

Speakers: Dr John Seeman (SLAC) , Dr Maria Biagini (INFN)

Slides HF2014_WG4_Summary_v2.pptx

14:45 WG 5

Speakers: Dr Sergey Belomestnykh (BNL) , Prof. Yoshiyuki Morita (KEK)

Slides WG5_summary.ppt

15:00 WG 6

Speakers: Mr David Rice (U. Cornell) , Dr Yannis Papaphilippou (CERN)

Slides WG6_injector_summary.pdf

15:15 WG 7

Speakers: Gang Xu (IHEP) , Dr John Byrd (LBL)

Slides HF2014WG7SummaryByrd.pptx

15:30 → 16:00 Coffee (30’)

16:00 → 16:45 Summary Session 3 (Chair: Frank Zimmermann)

16:00 WG 8

Speaker: Ivan Koop (BINP)

Slides WG8-summary.pdf

16:15 WG 9

Speakers: Dr Hermann Schmickler (CERN) , Dr Michiko Minty (BNL)

Slides SummaryWG9_InstrAndControl.pptx

16:30 WG 10

Speaker: Dr Stephen Peggs (BNL)

Slides Peggs_WG10_summary.key.7z Peggs_WG10_summary.pdf

16:45 → 16:50 Closing Remarks

Speaker: Dr Weiren Chou (FNAL)

Slides Weiren_Chou_2_Closing.pptx