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Summary  from  IPAC16  (8-13 May) Summary  from  IPAC16  (8-13 May)

Summary from IPAC16 (8-13 May) - PowerPoint Presentation

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Summary from IPAC16 (8-13 May) - PPT Presentation

and from KET Workshop on future e e colliders 23 May Frank Zimmermann FCC ee optics meeting 20 May 2016 Warm thank to In Soo Ko and Chrisztian IPAC16 statistics ID: 789841

lhc fcc future cern fcc lhc cern future present time ket particle collider study accelerator project beam ilc abstracts

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Slide1

Summary from IPAC16 (8-13 May) and from KET Workshop on future e+e- colliders (2-3 May)

Frank ZimmermannFCC-ee optics meeting, 20 May 2016

Warm thank to In Soo Ko and

Chrisztian

Slide2

IPAC’16 statistics

Total Number of Participants:

1,270

Exhibition: Number of Companies: 86 +(15); Asia: 35, Europe: 42, Americas: 9; Non-Profit Organization: 15 (co-host, IPAC17,…..)Students: America: 9, Europe: 26+1, Asia: 38

In Soo Ko

IPAC’16 Statistics by Super-Region

http://www.ipac16.org

Slide3

IPAC’16 Statistics by CountryIn Soo Ko

Slide4

FCC at IPAC’16appeared in two oral presentations:K. Ohmi, Simulated Beam-beam Limits for Circular Lepton and Hadron

Colliders G. Guillermo, Simulating Proton Synchrotron Radiation in the Arcs of the LHC, HL-LHC and FCC-hh in total: 29 abstracts related to FCC

f

or comparison:

15 abstracts mentioning ILC25 abstracts mentioning CLIC31 abstracts on HL-LHC, 127 abstracts on LHC extracted from SPMS

Slide5

interview in DongA newspaper

Slide6

translation with the help of googleFCC expected to discover dark matter particles!

A 80  to 100 km tunnel built 200 m underground to host a future project in which Korean teams are involved. 

Nobody knows what could be the next particles that we could discover following the discovery of the Higgs boson, the so-called 'God's particle'. With start of construction possibly around 2025, a future circular accelerator explored in the frame of the Future Circular Collider study could provide more answers. 

The deputy leader of the FCC design study, Frank Zimmermann, from the European Particle Physics Laboratory (CERN), attended the International Accelerator Conference (IPAC 2016), which opened on Monday in Busan. He says, using the "FCC we could be able to discover candidates of dark matter and supersymmetry particles".

Bigger and bigger accelerators are needed to collide two protons at energies of 100 TeV (100 times 1 million trillions of 1000 electron volt) after accelerating them close to the speed of light speed. These collisions could help to understand the origins of the universe by studying the debris of collisions that are produced during collisions.  FCC study focuses on designing future colliders that will allow this step. This study is attracting more and more attention as a future accelerator project. 

Dr.

Zimmermann explains that presently the study focuses on a "80 to 100km tunnel at 200 m  depth crossing the Franco Swiss borders". The decision for the exact final location largely depends on the quality of the soil and civil engineering studies. The distance from Seoul to

Cheonan

gives a magnitude of the total circumference of the future accelerator that will be around 100 km. In 2012  the Higgs boson was discovered at CERN's large hadron collider that is inside a 27 km tunnel, the world's present largest experiment. 

In 2

012 protons colliding at 7

TeV

helped to discovery the Higgs boson with a mass of 125GeV (Giga electron volts). LHC has been further upgraded, reaching about two times the energy used to find the Higgs particle. Dr Zimmermann explains:  "FCC foresees an increase of energy by a factor of ten compared to the present collision energies at the LHC".

The discussion about the next generation of accelerators that will succeed the LHC is driving several complementary studies to establish the foundations for the next generation of accelerators. These studies include aside from the FCC, also the international linear accelerator (ILC) - Japan's leading project -, and the plans for a 52 km circular particle accelerator in China.

Dr.

Zimmermann says:

in a circular collider we can obtain a much higher collision rate, since each particle collides many times with the other beam, and not only a single time as a in a linear collider.”

At present 23 countries are involved in the design of the FCC, including six Korean domestic institutions, such as

Gangneung

Wonju

University, KAIST, and KIAS.

Dr.

Zimmermann adds: "We hope more organizations in Korea will participate in the FCC project, thereby

invigorating the Asian R&D effort ". 

Slide7

IPAC’16 discussions related to FCCVladimir Litvinenko (CASE) is looking for a student to study the FCC-ee dynamic aperture using the code ELEGANTTimur

Shaftan, Victor Smaluk and NSLS-II team (BNL) would like to perform some SR studies of FCC-ee, even before asking for any fundingProposal to test FCC SR diagnostics at the Australian Synchrotron, the only one with FCC type distance >150 m between emission point and monitor (Mark Boland, and Toshiyuki Mitsuhashi)

Demin Zhou plans to visit CERN in September and again next year (including work on SAD and MADX)

Also Kazuhito Ohmi will visit CERN around September for beam-beam etc.Yannis Papaphilippou will launch regular FCC-ee injector meetingsRobert Rossmanith plans to compare separate- and combined function optics with regard to polarization

Slide8

KET workshop for Future e+e- Collidershttps://indico.mpp.mpg.de/conferenceDisplay.py?confId=4223

The aim of this workshop was to present an overview of the currently discussed options for e+e- colliders. The ensuing discussion should help to form a consensual strategy of the German high energy physics community. This will serve as preparation for a new European strategy which should emerge in 2017/18.

74 registrants:

Germany: 64, Switzerland: 4, China: 1, UK: 2, Spain: 2, Austria: 1

Agenda: Theory I + II, CEPC, FCC-ee, ILC, CLIC – technology time line, analysis highlights for all 4 projects –, summary , discussions, conclusions, finally physics case and status of the linear collider

Slide9

Brief summary from Krisztian PetersThe KET meeting was first of a series of workshops which will be used to discuss and eventually define Germany’s input to the next European Strategy for particle physics. 

 Frank’s talk was very good and convincing.

It was received positively (with some surprise) that an FCC-

ee

would be ready to work on paper already now (in contrary to CEPC).  All e+e- projects presented a time line with starting date approximately when the LHC ends. This was debated for the FCC-ee case. Will CERN have the manpower and financial situation to achieve this?

 

The ILC was put at the highest priority among all

e+e

- projects. With the strongest argument that the project was demonstrated to be ready (TDR etc.)

 

Other arguments which were discussed in favour of the ILC:

The possibility to extend to higher energies (flexibility). 

Beam polarisation.

The potential for a broad programme, from Z mass to 1

TeV

, high-

lumi

upgrade, even 750 GeV Compton back-scattering. (Some discussion on the timeline to achieve all this.)

There were no discussions about costs, as the ILC is the only project with official numbers.

 

 

Individual questions Frank received after his talk:

 

1. Why only two

e+e

- experiments, and not four (question from Yifang)?

 

2. Why can the FCC

e+e

- and pp machines not be present at the same time in the tunnel (as in China)?

 

3. Which luminosity could FCC-

ee

achieve with longitudinal polarization at the Z pole? (question from

Gudi

)

 

4. Which FCC-

ee

luminosity would be possible at 500 GeV? (question from Jenny)

 

5. Time between end of HL-LHC and start of FCC-

ee

/FCC-

hh

("4 years unrealistically short"!? – why?? I think LEP and the

SppbarS

collider were running together for 2 years .)

 

6. Cost and financing of the FCC ("present CERN budget far insufficient")

 

7. Role and status of CLIC?

 

 

 

Slide10

questions after the talk1. Why only two e+e

- experiments, and not four? 2. Why can the FCC

e+e

- and pp machines not be present at the same time in the tunnel (as in China)?

 3. Which luminosity could FCC-ee achieve with longitudinal polarization at the Z pole? (question from Gudi) 4. Which FCC-

ee luminosity would be possible at 500 GeV? (question from Jenny)

 

5. Time between end of HL-LHC and start of FCC-

ee

/FCC-

hh

("4 years unrealistically short"!? – why?? I think LEP and the

SppbarS

collider were running together for 2 years .)

 

6. Cost and financing of the FCC ("present CERN budget far insufficient")

 

7. Role and status of CLIC?

Slide11

KET = Kommitee für ElementarteilchenphysikRepresentation of German particle physicists, who work on more than 20 universiites, as well as at CERN, at the Helmholtz-Center DESY, at two Max-Planck-Institutes, as well as at non-European reearch centers.

Eight KET members are elected by secret vote.Five members belong to KET ex officio.The KET was founded in the year 2000.