Presentation is loading. Please wait.

Presentation is loading. Please wait.

Future Accelerators at the energy frontier Peter Hansen february 2010 University of Copenhagen.

Similar presentations


Presentation on theme: "Future Accelerators at the energy frontier Peter Hansen february 2010 University of Copenhagen."— Presentation transcript:

1 Future Accelerators at the energy frontier Peter Hansen february 2010 University of Copenhagen

2 What physicists would like  2010: Start LHC@7TeV, cautiously increase energy and find the Higgs and first signs of new physics  2011: Approve the International Linear Collider. Operate it by about 2018.  2012: Approve a potent neutrino factory and a B-factory to reach 100 ab.  2014: LHC upgrade to increase statistics  2020: Start genuine “discovery machines” (CLIC and/or a muon collider)  But the realistic timescale is rather longer!

3 CERNS accelerator complex

4 Large Hadron Collider

5 LHC in numbers  Circumference: 27km  Energy: 2x7 TeV  Peak dipole field: 8.3 Tesla  Injection: 450 GeV protons or A  Protons per bunch: 1.1 10¹¹  Bunch spacing: 25 ns  Stored energy/beam: 362 MJ

6 LHC in numbers  Normalised emittance: 3.75 mm mrad  beta function at IP (at inject): 10m  beta function at IP (at coll.): 0.55m  Beam size at IP: 16.6 mu  Bunch length: 3.75cm  Events per bunch crossing: 19  Peak luminosity: 10 34 cm-²s-¹

7 Possible luminosity upgrade Around 2015-16 LHC will have exhausted its potential. However by a 10-fold luminosity upgrade, the discovery reach could be moved about 0.5-1 TeV further out and precision measurements could be significantly improved. That would require a major machine and detector upgrade to withstand the radiation and deal with many thousands of particles per event.

8 International Linear Collider  By 2000 a world-wide consensus developed that the next step would be a linear e+e- collider at 500 GeV, upgradable to 1 TeV, in order to do precision measurements in the Higgs sector and any new physics that were discovered at the LHC.  Engineering design and go-ahead planned for in 2010. Price would be about 6 B$.

9

10 CLIC

11

12 Neutrino factory

13 Motivation  Ideas from GUTs on mass hierarchy  and on the mass mixing matrix  Is the mass hierarchy “natural”?  Is theta_13 really very small?  Is theta_12 really close to pi/4?  Very clean CP violation laboratory!

14 NEUFAC “An emerging facility” (European priority placed after LHC and also after ILC/CLIC) CERN-SG: 4.[…] it is vital to strengthen the advanced accelerator R&D programme; a coordinated programme should be intensified, to develop the CLIC technology and high performance magnets for future accelerators, and to play a significant role in the study and development of a high-intensity neutrino facility. 6.Studies of the scientific case for future neutrino facilities and the R&D into associated technologies are required to be in a position to define the optimal neutrino programme based on the information available in around 2012 ; Council will play an active role in promoting a coordinated European participation in a global neutrino programme.

15 Low energy options

16 High Energy option (5-20 GeV) Nu factory does it all..

17 Other planned experiments Nu-factory best. But costs 2B$

18 Proton Driver Super Conducting Linac around 10 GeV around 4MW carried in beam! Feasible at CERN >2016 R&D at RAL: H- source, beam chopper

19 Target Optimization of Ep (HARP exp – CERN) Moving Tantalum wire (RAL R&D) High power LHg jet (MERIT exp - CERN)

20 Fast dE/dx cooling MICE@RAL to demonstrate one sector MICE@RAL First beam Jan 2008 – total cost 23M£

21 Other Ideas

22 Outlook  It would be super to have it all - and fast!  However, the sponsors are inclined to long lead-times for the post-LHC accelerators at the energy frontier.  This could of course change if something really exiting were discovered at the LHC!  So a good way to speed up future accelerators is to work hard on the LHC physics.


Download ppt "Future Accelerators at the energy frontier Peter Hansen february 2010 University of Copenhagen."

Similar presentations


Ads by Google