Accelerators for a Higgs Factory: Linear vs. Circular (HF2012)

14 Nov 2012, 08:00 → 16 Nov 2012, 17:00 US/Central

One West, Wilson Hall (Fermilab)

Weiren Chou (Fermilab)

With the discovery of a Higgs boson at ~125 GeV, the world high-energy physics community is investigating the feasibility of a Higgs Factory, a complement to the LHC for studying the Higgs.

This 3-day workshop aims to bring the community together for a discussion on a future Higgs Factory, in particular for a comparison between a linear 125 × 125 GeV e⁺e^– collider and a circular 125 GeV e⁺e^– collider, from the accelerator point of view. It will also discuss physics requirements for a Higgs Factory and other options for a Higgs Factory, including a muon collider and a γ-γ collider.

All sessions will be plenary. The outcome of this workshop will be used as input to the U.S. Snowmass 2013, European Strategy Updates and HEP roadmaps in Asia (Japan and China).

Topics:

• Higgs physics beyond the LHC
• Merits and requirements of each type of Higgs factory
• Linear Higgs factories – ILC, CLIC, SLC, NLC
• Circular Higgs factories: LEP3, TLEP, SuperTristan, Fermilab site-filler, IHEP ring, LBNL/SLAC ring
• Limits of circular e⁺e^– colliders
• Muon collider as a Higgs Factory
• γ-γ collider as a Higgs Factory

The final report can be found at: www-bd.fnal.gov/icfabd/HF2012.pdf

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Agenda HF2012_Agenda.pdf

Photos

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• Neuffer
• Odonne
• Oide
• Schulte
• Telnov

Wednesday, 14 November

08:00 → 09:00 Registration

09:00 → 12:30 Welcome, Introduction and Physics

Convener: Dr Alain Blondel (University of Geneva)

09:00 Welcome

Speaker: Dr Pier Oddone (Fermilab)

09:05 Strategy for Higgs Study

Speaker: Prof. Young-Kee Kim (FNAL)

Slides 2012-11-14-ICFA-Workshop-YKK.ppt

09:30 Higgs at the LHC

Speaker: Dr Fabio Cerutti (LBNL - Berkeley)

Slides Cerutti-FermilabNovember2012-Final.pdf Cerutti-FermilabNovember2012-Final.pptx

10:10 Higgs beyond the LHC - theories

Speaker: Prof. Chris Quigg (Fermilab)

Slides Quigg.pdf

10:55 Coffee Break

11:15 Higgs beyond the LHC - experiments

Speaker: Dr Patrick JANOT (CERN Geneva, Switzerland)

Slides BeyondLHCExpt.pdf

12:00 Accelerators for a Higgs Factory

Speaker: Dr Stuart Henderson (Fermilab)

Slides Henderson_Higgs_v2.pdf Henderson_Higgs_v2.pptx

12:30 → 14:00 Lunch

14:00 → 17:30 Linear e+e- Higgs Factories

Convener: Dr Jie Gao (IHEP)

14:00 ILC as a Higgs Factory

Speaker: Dr Nicholas Walker (DESY)

Slides ICFA-FNAL-14-11-12.pptx

14:45 CLIC as a Higgs factory

Speaker: Dr Daniel Schulte (CERN)

Slides HF_2012.pptx

15:15 An X-band e+e-/gamma+gamma Higgs factory at KEK

Speaker: Toshiyasu Higo (KEK)

Slides Belusevic_Higo_Presentation_HF2012_Final_Nov_14.ppt

15:30 Group Photograph and Coffee Break

16:00 SLC & NLC-type Higgs Factory

Speaker: Prof. Tor Raubenheimer (SLAC)

Slides 121114_SLC-style_Higgs_Factory.pptx

16:45 Machine-Detector interface for the ILC and CLIC

Speaker: Marco Oriunno (SLAC)

Slides MOriunnoHF2012.pptx

17:30 → 19:30 Reception

Thursday, 15 November

09:00 → 12:30 Circular e+e- Higgs Factories

Convener: Dr Daniel Schulte (CERN)

09:00 LEP3 and TLEP

Speaker: Dr Frank Zimmermann (CERN)

Slides LEP3_and_TLEP_-_HF2012_-_Frank_Zimmermann.pptx

09:40 SuperTristan

Speaker: Dr Katsunobu Oide (KEK)

Slides SuperT_Oide_121115.pdf

10:05 Fermilab Site Filler

Speaker: Dr Tanaji Sen (Fermilab)

Slides Fermilab_site_filler.ppt

10:30 Coffee Break

11:00 IHEP Higgs Factory

Speaker: Dr Qing QIN (Institute of High Energy Physics, Chinese Academy of Sciences)

Slides Higgs_Factory_in_IHEP.pptx

11:25 LBNL/SLAC ring and lattice issues

Speaker: Dr Yunhai Cai (SLAC)

Slides Cai.pdf Cai.pptx

12:05 Topping up injection

Speaker: Dr John Seeman (SLAC)

Slides Seeman.pptx

12:30 → 14:00 Lunch

14:00 → 17:30 Limits for circular e+e- colliders

Convener: Dr Alex Chao (SLAC)

14:00 Beamstrahlung – calculations and cure

Speaker: Prof. Valery Telnov (Budker INP)

Slides telnov-HF2012.pdf

14:30 Beamstrahlung – simulations

Speaker: Prof. Marco Zanetti (MIT)

Slides Zanetti.ppt

15:00 Scaling Law

Speaker: Dr Kaoru Yokoya (KEK)

Slides Yokoya.pdf

15:30 Coffee Break

16:00 Beam-beam tune shift

Speaker: Prof. Jie Gao (IHEP)

Slides Gao.ppt

16:30 Synchrotron radiation - RF

Speaker: Dr Andrew Butterworth (CERN)

Slides rf_v2.pptx

17:00 Synchrotron radiation - vacuum

Speaker: Nadine Kurita (SLAC)

Slides Higgs_workshop_vacuum.pptx

18:30 → 20:30 Dinner

Friday, 16 November

09:00 → 10:30 Low emittance rings

Convener: Weiren Chou (Fermilab)

09:00 Light Sources

Speaker: Riccardo Bartolini (Diamond and JAI)

Slides RB_Higgs_FNAL_2012_11_18.ppt

09:45 Colliders

Speaker: Prof. Yoshihiro Funakoshi (KEK)

Slides LowEmittanceRingsFunakoshi.pdf LowEmittanceRingsFunakoshi.pptx

10:30 → 11:00 Coffee Break

11:00 → 12:30 Muon collider as Higgs Factory

Convener: Weiren Chou (Fermilab)

11:00 Physics of μμ --> Higgs

Speakers: Prof. Tao Han (Univ. of Pittsburgh), Prof. Tao Han (University of Wisconsin)

Slides ICFA-Han.pdf ICFA-Han.pptx

11:20 Muon Collider

Speaker: Dr David Neuffer (Fermilab)

Slides NeufferHiggs.pptx

12:05 Background and machine-detector interface

Speaker: Dr Ronald Lipton (Fermilab)

Slides MUC_HWshop.pptx

12:30 → 13:45 Lunch

13:45 → 15:30 Gamma-Gamma collider as Higgs Factory

Convener: Dr Kaoru Yokoya (KEK)

13:45 Physics of gamma+gamma --> Higgs

Speaker: Prof. Mayda Velasco (Northwestern University)

Slides ICFA_Velasco.pptx

14:10 Gamma-gamma collider

Speaker: Dr Tohru Takahashi (Hiroshima University)

Slides HF2012takahashi.pptx

14:45 Laser for CLIC-based gamma-gamma collider

Speaker: Dr Andy Bayramian (Lawrence Livermore National Laboratory)

Slides 121115_Bayramian_-ICFA_HF_2012_final.pdf

15:10 SAPPHiRE and LHeC

Speaker: Dr Frank Zimmermann (CERN)

Slides SAPPHiRE_and_LEP3_-_HF2012_-_Frank_Zimmermann.pptx

15:30 → 16:00 Wine and Cheese

16:00 → 17:00 Summary Talk (Joint with the Wine-and-Cheese Seminar)

16:00 Higgs Factory - Physics

Speaker: Prof. Alain Blondel (University of Geneva)

Slides bdl-HF2012-summary.pptx

16:25 Higgs Factory - accelerators

Speaker: Dr Weiren Chou (Fermilab)

Slides chou_talk.pptx