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, October 9, 2014 (7:30 AM) to Sunday, October 12, 2014 (7:00 PM)

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

7:30 AM Registration
Registration
7:30 AM - 8:30 AM
8:30 AM
8:30 AM - 10:05 AM
Contributions

8:30 AM Welcome and introduction of IHEP(45’) - Yifang Wang (IHEP)

9:20 AM A new paradigm: Role of electron-positron and hadron colliders (40’+5’) - Shouhua Zhu (PKU)
10:05 AM Coffee (25’)
Coffee (25’)
10:05 AM - 10:30 AM
10:30 AM
10:30 AM - 12:00 PM
Contributions

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

11:15 AM Status of CEPC physics and detector studies (40’+5’) - Yuanning Gao (THU)
12:00 PM Lunch
Lunch
12:00 PM - 2:00 PM
2:00 PM
2:00 PM - 3:30 PM
Contributions

2:00 PM Overview: FCC-ee (40’+5’) - Frank Zimmermann (CERN)

2:45 PM Overview: CEPC (40’+5’) - Qing Qin (IHEP)
3:30 PM Group photo & Coffee (30’)
Group photo & Coffee (30’)
3:30 PM - 4:00 PM
4:00 PM WG 1 – Parameters
WG 1 – Parameters
4:00 PM - 5:30 PM
Contributions

4:00 PM (1) Physics motivation and requirements - Alain Blondel (U. Geneva)

4:30 PM (2) Choice of circumference, minimum & maxim energy, number of collision points, and target luminosity - Michael Koratzinos (U. Geneva)

5:00 PM (3) Ring circumference and two rings vs one ring - Richard Talman (Cornell U.)
WG 2 – Optics
WG 2 – Optics
4:00 PM - 5:30 PM
Contributions

4:00 PM (1) Overall consideration, main challenges and goals - Yunhai Cai (SLAC)

4:22 PM (2) Single ring multi-bunch operation and beam separation - Richard Talman (Cornell U.)

4:44 PM (3) Challenges and status of the FCC-ee lattice design - Bastian Harer (CERN)

5:06 PM (4) Status of the CEPC lattice design - Huiping Geng (IHEP)
6:00 PM WG 10 – “Green” Accelerators
WG 10 – “Green” Accelerators
6:00 PM - 7:45 PM
Contributions

6:00 PM (1) Energy consumption and savings potential of CLIC - Philippe Lebrun (CERN)

6:21 PM (2) A green CEPC using the power of nuclear waste - Zhenchao Liu (IHEP)

6:42 PM (3) Sustainability for bosons: the need for an energy program for a future Higgs factory - Thomas Parker (ESS)

7:03 PM (4) HEP future: to be green, or not to be? - Denis Perret-Gallix (CERN)

7:24 PM (5) Current status of Green-ILC activities in Japan - Takayuki Saeki (KEK)
8:00 PM Reception
Reception
8:00 PM - 9:30 PM
Friday, October 10, 2014
8:30 AM WG 1 – Parameters
WG 1 – Parameters
8:30 AM - 10:00 AM
Contributions

8:30 AM (4) Beam-beam effects in high-energy colliders: crab waist vs. head-on - Dmitry Shatilov (BINP)

9:00 AM (5) Optimizing beam intensity, number of bunches, bunch charge, and emittance - Chuang Zhang (IHEP)

9:30 AM (6) Polarization issues in FCC-ee collider - Eliana Gianfelice (FNAL)
WG 2 – Optics
WG 2 – Optics
8:30 AM - 10:00 AM
Contributions

8:30 AM (5) Analysis of nonlinear dynamics - Yunhai Cai (SLAC)

8:52 AM (6) Dynamic aperture optimization in SuperKEKB - Yukiyoshi Ohnishi (KEK)

9:14 AM (7) The effect of IR imperfection on dynamic aperture in SuperKEKB / dynamic aperture study of CEPC - Hiroshi Sugimoto (KEK)

9:36 AM (8) Beam lifetime and Injection consideration - Xiaohao Cui (IHEP)
10:00 AM Coffee (30’)
Coffee (30’)
10:00 AM - 10:30 AM
10:30 AM Joint Session of WG2 and WG3
Joint Session of WG2 and WG3
10:30 AM - 12:00 PM
Contributions

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

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

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

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

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

11:30 AM (9) Optimizing costs of construction and operation, possible construction time line - Weiren Chou (FNAL)
12:00 PM Lunch
Lunch
12:00 PM - 2:00 PM
1:30 PM WG 3 – IR and MDI
WG 3 – IR and MDI
1:30 PM - 3:30 PM
Contributions

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

2:15 PM (2) Beam-beam limit vs. number of IPs and energy II: scaling law - Ming Xiao (IHEP)
2:00 PM WG 2 – Optics
WG 2 – Optics
2:00 PM - 3:30 PM
Contributions

2:00 PM (12) Beamstrahlung and energy acceptance - Kazuhito Ohmi (KEK)

2:22 PM (13) Interaction region magnets - Eugenio Paoloni (INFN)

2:44 PM (14) Beam-beam effects in the CEPC - Yuan Zhang (IHEP)

3:06 PM (15) Wide-band long-focus optics for detection systems infrared synchrotron accelerator diagnostics - Anatoly Maltsev (JINR)
3:30 PM Coffee (30’)
Coffee (30’)
3:30 PM - 4:00 PM
4:00 PM WG 3 – IR and MDI
WG 3 – IR and MDI
4:00 PM - 5:30 PM
Contributions

4:00 PM (3) Beam-beam limit vs. number of IPs and energy I: beam-beam simulation - Kazuhito Ohmi (KEK)

4:45 PM (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
4:00 PM - 5:30 PM
Contributions

4:00 PM (1) Monte-Carlo simulation of synchrotron radiation in the design of CEPC vacuum chamber - Zhongjian Ma (IHEP)

4:22 PM (2) Vacuum system requirements for a HF e+e- accelerator - Roberto Kersevan (CERN)

4:44 PM (3) Synchrotron radiation effects in the HF injector - Yannis Papaphilippou (CERN)

5:06 PM (4) Shielding of Electronics in the Tunnel - Luigi Salvatore Esposito (CERN)
Saturday, October 11, 2014
8:30 AM Joint session of WG 3 and WG4 – IR, MDI and shielding
Joint session of WG 3 and WG4 – IR, MDI and shielding
8:30 AM - 10:00 AM
Contributions

8:30 AM (5) Choice of L* I: SR and other issues (Joint with WG4) - Michael Sullivan (SLAC)

9:00 AM (6) Choice of L* II: IR optics and dynamic aperture - Eugene Levichev (BINP)

9:30 AM (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
8:30 AM - 10:00 AM
Contributions

9:14 AM (7) Synchrotron radiation absorption and vacuum issues in the IR - John Seeman (SLAC)

9:36 AM (8) Infrared synchrotron methods and systems for monitoring and controlling particle beams in real time - Marina Maltseva (TENZOR)
10:00 AM Coffee (30’)
Coffee (30’)
10:00 AM - 10:30 AM
10:30 AM WG 3 – IR and MDI
WG 3 – IR and MDI
10:30 AM - 12:00 PM
Contributions

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

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

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

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

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

11:34 AM (4) Discussion
12:00 PM

12:00 PM - 2:00 PM

Lunch
Lunch
12:00 PM - 2:00 PM
2:00 PM WG 5 – Superconducting RF
WG 5 – Superconducting RF
2:00 PM - 3:30 PM
Contributions

2:00 PM (5) High power coupler - Eiji Kako (KEK)

2:22 PM (6) HOM damper hardware considerations for future energy frontier circular colliders - Sergey Belomestnykh (BNL)

2:44 PM (7) Tuners, operating experience and performance recovery - Yoshiyuki Morita (KEK)

3:06 PM (8) Discussion
WG 6 – Injectors and Injection
WG 6 – Injectors and Injection
2:00 PM - 3:30 PM
Contributions

2:00 PM (1) CEPC injector - Chuang Zhang (IHEP)

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

2:44 PM (3) Maintaining polarization in synchrotrons - Ivan Koop (BINP)

3:06 PM (4) Discussion
3:30 PM Coffee (30’)
Coffee (30’)
3:30 PM - 4:00 PM
4:00 PM WG 6 – Injectors and Injection
WG 6 – Injectors and Injection
4:00 PM - 5:30 PM
Contributions

4:00 PM (5) Topoff injection at PEP2 - John seeman (SLAC)

4:22 PM (6) Injection with Pretzels at CESR - David Rice (Cornell U.)

4:44 PM (7) Lattice optimization for Top-Up injection - Richard Talman (Cornell U.)

5:06 PM (8) Discussion
WG 7 – Orbit and Beam Stability
WG 7 – Orbit and Beam Stability
4:00 PM - 5:30 PM
Contributions

4:00 PM (1) Impedance and collective effects of CEPC - Na Wang (IHEP)

4:45 PM (2) Discussion
7:00 PM Banquet
Banquet
7:00 PM - 9:00 PM
Sunday, October 12, 2014
8:30 AM WG 8 – Polarization
WG 8 – Polarization
8:30 AM - 10:00 AM
Contributions

8:30 AM (1) Transverse polarization for energy calibration at Z-peak - Michael Koratzinos (U. Geneva)

8:52 AM (2) Longitudinal polarization and acceleration of polarized beams - Ivan Koop (BINP)

9:14 AM (3) FCC-ee beam energy measurement suggestion - Nickolai Muchnoi (BINP)

9:36 AM (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
8:30 AM - 10:20 AM
Contributions

8:30 AM (1) Lessons learned from the B-Factories and implications for a high-luminosity circular e+e- Higgs factory - Yoshihiro Funakoshi (KEK)

9:00 AM (2) Instrumentation and control at large colliders - Manfred Wendt (CERN)

9:50 AM (3) Beam instrumentation of CEPC - Junhui Yue (IHEP)
10:00 AM Coffee (30’)
Coffee (30’)
10:00 AM - 10:30 AM
10:30 AM
10:30 AM - 12:00 PM
Contributions

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

11:15 AM WG 1 - Eugene Levichev (BINP) Frank Zimmermann (CERN)
12:00 PM Lunch
Lunch
12:00 PM - 2:00 PM
2:00 PM
2:00 PM - 3:30 PM
Contributions

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

2:15 PM WG 3 - Michael Sullivan (SLAC) Yoshihiro Funakoshi (KEK)

2:30 PM WG 4 - John Seeman (SLAC) Maria Biagini (INFN)

2:45 PM WG 5 - Sergey Belomestnykh (BNL) Yoshiyuki Morita (KEK)

3:00 PM WG 6 - David Rice (U. Cornell) Yannis Papaphilippou (CERN)

3:15 PM WG 7 - Gang Xu (IHEP) John Byrd (LBL)
3:30 PM Coffee (30’)
Coffee (30’)
3:30 PM - 4:00 PM
4:00 PM
4:00 PM - 4:45 PM
Contributions

4:00 PM WG 8 - Ivan Koop (BINP)

4:15 PM WG 9 - Hermann Schmickler (CERN) Michiko Minty (BNL)

4:30 PM WG 10 - Stephen Peggs (BNL)
4:45 PM Closing Remarks - Weiren Chou (FNAL)
Closing Remarks
- Weiren Chou (FNAL)
4:45 PM - 4:50 PM