Name: 55th ICFA Advanced Beam Dynamics Workshop on High Luminosity Circular e+e- Colliders – Higgs Factory (HF2014)
Start: 2014-10-09T07:30:00+08:00
End: 2014-10-12T19:00:00+08:00
Location: No location set

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

from Thursday, 9 October 2014 (07:30) to Sunday, 12 October 2014 (19:00)

Monday, 6 October 2014
Tuesday, 7 October 2014
Wednesday, 8 October 2014
Thursday, 9 October 2014

07:30 Registration
Registration
07:30 - 08:30
08:30
08:30 - 10:05
Contributions

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

09:20 A new paradigm: Role of electron-positron and hadron colliders (40’+5’) - Shouhua Zhu (PKU)
10:05 Coffee (25’)
Coffee (25’)
10:05 - 10:30
10:30
10:30 - 12:00
Contributions

10:30 Status of FCC-ee physics studies (40’+5’) - Alain Blondel (U. Geneva)

11:15 Status of CEPC physics and detector studies (40’+5’) - Yuanning Gao (THU)
12:00 Lunch
Lunch
12:00 - 14:00
14:00
14:00 - 15:30
Contributions

14:00 Overview: FCC-ee (40’+5’) - Frank Zimmermann (CERN)

14:45 Overview: CEPC (40’+5’) - Qing Qin (IHEP)
15:30 Group photo & Coffee (30’)
Group photo & Coffee (30’)
15:30 - 16:00
16:00 WG 1 – Parameters
WG 1 – Parameters
16:00 - 17:30
Contributions

16:00 (1) Physics motivation and requirements - Alain Blondel (U. Geneva)

16:30 (2) Choice of circumference, minimum & maxim energy, number of collision points, and target luminosity - Michael Koratzinos (U. Geneva)

17:00 (3) Ring circumference and two rings vs one ring - Richard Talman (Cornell U.)
WG 2 – Optics
WG 2 – Optics
16:00 - 17:30
Contributions

16:00 (1) Overall consideration, main challenges and goals - Yunhai Cai (SLAC)

16:22 (2) Single ring multi-bunch operation and beam separation - Richard Talman (Cornell U.)

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

17:06 (4) Status of the CEPC lattice design - Huiping Geng (IHEP)
18:00 WG 10 – “Green” Accelerators
WG 10 – “Green” Accelerators
18:00 - 19:45
Contributions

18:00 (1) Energy consumption and savings potential of CLIC - Philippe Lebrun (CERN)

18:21 (2) A green CEPC using the power of nuclear waste - Zhenchao Liu (IHEP)

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

19:03 (4) HEP future: to be green, or not to be? - Denis Perret-Gallix (CERN)

19:24 (5) Current status of Green-ILC activities in Japan - Takayuki Saeki (KEK)
20:00 Reception
Reception
20:00 - 21:30
Friday, 10 October 2014
08:30 WG 1 – Parameters
WG 1 – Parameters
08:30 - 10:00
Contributions

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

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

09:30 (6) Polarization issues in FCC-ee collider - Eliana Gianfelice (FNAL)
WG 2 – Optics
WG 2 – Optics
08:30 - 10:00
Contributions

08:30 (5) Analysis of nonlinear dynamics - Yunhai Cai (SLAC)

08:52 (6) Dynamic aperture optimization in SuperKEKB - Yukiyoshi Ohnishi (KEK)

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

09:36 (8) Beam lifetime and Injection consideration - Xiaohao Cui (IHEP)
10:00 Coffee (30’)
Coffee (30’)
10:00 - 10:30
10:30 Joint Session of WG2 and WG3
Joint Session of WG2 and WG3
10:30 - 12:00
Contributions

10:30 (9) CEPC IR optics - Yiwei Wang (IHEP)

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

11:30 (11) Crab waist interaction region - Anton Bogomyagkov (BINP)
WG 1 – Parameters
WG 1 – Parameters
10:30 - 12:00
Contributions

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

11:00 (8) Polarization issues and schemes for energy calibration - Ivan Koop (BINP)

11:30 (9) Optimizing costs of construction and operation, possible construction time line - Weiren Chou (FNAL)
12:00 Lunch
Lunch
12:00 - 14:00
13:30 WG 3 – IR and MDI
WG 3 – IR and MDI
13:30 - 15:30
Contributions

13:30 (1) SuperKEKB background simulations (including issues for detector shielding) - Hiroyuki Nakayama (KEK)

14:15 (2) Beam-beam limit vs. number of IPs and energy II: scaling law - Ming Xiao (IHEP)
14:00 WG 2 – Optics
WG 2 – Optics
14:00 - 15:30
Contributions

14:00 (12) Beamstrahlung and energy acceptance - Kazuhito Ohmi (KEK)

14:22 (13) Interaction region magnets - Eugenio Paoloni (INFN)

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

15:06 (15) Wide-band long-focus optics for detection systems infrared synchrotron accelerator diagnostics - Anatoly Maltsev (JINR)
15:30 Coffee (30’)
Coffee (30’)
15:30 - 16:00
16:00 WG 3 – IR and MDI
WG 3 – IR and MDI
16:00 - 17:30
Contributions

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

16:45 (4) Long-range beam-beam interaction with the bunch train operation - David Rice (Cornell U.)
WG 4 – SR and Shielding
WG 4 – SR and Shielding
16:00 - 17:30
Contributions

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

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

16:44 (3) Synchrotron radiation effects in the HF injector - Yannis Papaphilippou (CERN)

17:06 (4) Shielding of Electronics in the Tunnel - Luigi Salvatore Esposito (CERN)
Saturday, 11 October 2014
08:30 Joint session of WG 3 and WG4 – IR, MDI and shielding
Joint session of WG 3 and WG4 – IR, MDI and shielding
08:30 - 10:00
Contributions

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

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

09:30 (7) Choice of L* III: requirement from detector - Gang Li (IHEP)
Joint session of WG3 and WG 4 – SR, MDI and Shielding
Joint session of WG3 and WG 4 – SR, MDI and Shielding
08:30 - 10:00
Contributions

09:14 (7) Synchrotron radiation absorption and vacuum issues in the IR - John Seeman (SLAC)

09:36 (8) Infrared synchrotron methods and systems for monitoring and controlling particle beams in real time - Marina Maltseva (TENZOR)
10:00 Coffee (30’)
Coffee (30’)
10:00 - 10:30
10:30 WG 3 – IR and MDI
WG 3 – IR and MDI
10:30 - 12:00
Contributions

10:30 (8) Lost particles in the IR and Touschek effects - Manuela Boscolo (INFN)

11:15 (9) Detector beam background simulations for CEPC - Hongbo Zhu (IHEP)
WG 5 – Superconducting RF
WG 5 – Superconducting RF
10:30 - 12:00
Contributions

10:30 (1) General approach to FCC SRF system - Erk Jensen (CERN) Frank Zimmermann (CERN)

10:52 (2) General approach to CEPC SRF system - Jiyuan Zhai (IHEP)

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

11:34 (4) Discussion
12:00

12:00 - 14:00

Lunch
Lunch
12:00 - 14:00
14:00 WG 5 – Superconducting RF
WG 5 – Superconducting RF
14:00 - 15:30
Contributions

14:00 (5) High power coupler - Eiji Kako (KEK)

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

14:44 (7) Tuners, operating experience and performance recovery - Yoshiyuki Morita (KEK)

15:06 (8) Discussion
WG 6 – Injectors and Injection
WG 6 – Injectors and Injection
14:00 - 15:30
Contributions

14:00 (1) CEPC injector - Chuang Zhang (IHEP)

14:22 (2) FCC-ee injector - Yannis Papaphilippou (CERN)

14:44 (3) Maintaining polarization in synchrotrons - Ivan Koop (BINP)

15:06 (4) Discussion
15:30 Coffee (30’)
Coffee (30’)
15:30 - 16:00
16:00 WG 6 – Injectors and Injection
WG 6 – Injectors and Injection
16:00 - 17:30
Contributions

16:00 (5) Topoff injection at PEP2 - John seeman (SLAC)

16:22 (6) Injection with Pretzels at CESR - David Rice (Cornell U.)

16:44 (7) Lattice optimization for Top-Up injection - Richard Talman (Cornell U.)

17:06 (8) Discussion
WG 7 – Orbit and Beam Stability
WG 7 – Orbit and Beam Stability
16:00 - 17:30
Contributions

16:00 (1) Impedance and collective effects of CEPC - Na Wang (IHEP)

16:45 (2) Discussion
19:00 Banquet
Banquet
19:00 - 21:00
Sunday, 12 October 2014
08:30 WG 8 – Polarization
WG 8 – Polarization
08:30 - 10:00
Contributions

08:30 (1) Transverse polarization for energy calibration at Z-peak - Michael Koratzinos (U. Geneva)

08:52 (2) Longitudinal polarization and acceleration of polarized beams - Ivan Koop (BINP)

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

09:36 (4) Possible applications of wave-beam interaction for energy measurement and obtaining of polarization at FCC e+e- - Sergei Nikitin (BINP)
WG 9 – Instrumentation and Control
WG 9 – Instrumentation and Control
08:30 - 10:20
Contributions

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

09:00 (2) Instrumentation and control at large colliders - Manfred Wendt (CERN)

09:50 (3) Beam instrumentation of CEPC - Junhui Yue (IHEP)
10:00 Coffee (30’)
Coffee (30’)
10:00 - 10:30
10:30
10:30 - 12:00
Contributions

10:30 Physics opportunities - Nima Arkani-Hamed (IAS)

11:15 WG 1 - Eugene Levichev (BINP) Frank Zimmermann (CERN)
12:00 Lunch
Lunch
12:00 - 14:00
14:00
14:00 - 15:30
Contributions

14:00 WG 2 - Kazuhito Ohmi (KEK) Yunhai Cai (SLAC)

14:15 WG 3 - Michael Sullivan (SLAC) Yoshihiro Funakoshi (KEK)

14:30 WG 4 - John Seeman (SLAC) Maria Biagini (INFN)

14:45 WG 5 - Sergey Belomestnykh (BNL) Yoshiyuki Morita (KEK)

15:00 WG 6 - David Rice (U. Cornell) Yannis Papaphilippou (CERN)

15:15 WG 7 - Gang Xu (IHEP) John Byrd (LBL)
15:30 Coffee (30’)
Coffee (30’)
15:30 - 16:00
16:00
16:00 - 16:45
Contributions

16:00 WG 8 - Ivan Koop (BINP)

16:15 WG 9 - Hermann Schmickler (CERN) Michiko Minty (BNL)

16:30 WG 10 - Stephen Peggs (BNL)
16:45 Closing Remarks - Weiren Chou (FNAL)
Closing Remarks
- Weiren Chou (FNAL)
16:45 - 16:50