Zukünftige Beschleunigerprojekte am CERN Frank Zimmermann Jahresversammlung des Kommittees für Beschleunigerphysik Darmstadt, 29 November 2013 R. Aleksan, R. Assmann, A. Blondel, O. Brüning, A. Butterwort minguez, J. Ellis, B. Holzer, P. Janot, E. Jensen, M. Klein, . Ohmi, K. Oide, J. Osborne, L. Rossi, R. Schmidt J. Seeman, R. Tomas, J. Wenninge, U. Wienands, K. Yokoya, M. Zanetti, … , r Work supported by the European Commission under Capacities 7th Framework Programme, Grant Agreement
Zuk ü nftige Beschleunigerprojekte am CERN. Frank Zimmermann Jahresversammlung des Kommittees f ür B eschleunigerphysik Darmstadt, 29 November 2013. Thanks to R. Aleksan , R. Assmann , A. Blondel, O. Br ü ning , A. Butterworth, Y . Cai, - PowerPoint PPT Presentation
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Zukünftige Beschleunigerprojekte am CERN
Frank ZimmermannJahresversammlung des Kommittees für
BeschleunigerphysikDarmstadt, 29 November 2013
Thanks to R. Aleksan, R. Assmann, A. Blondel, O. Brüning, A. Butterworth, Y. Cai, R. Calaga, O. Dominguez, J. Ellis, B. Holzer, P. Janot, E. Jensen, M. Klein, M. Koratzinos,
S. Myers, K. Ohmi, K. Oide, J. Osborne, L. Rossi, R. Schmidt J. Seeman, V. Telnov, R. Tomas, J. Wenninge, U. Wienands, K. Yokoya, M. Zanetti, …
, r
Work supported by the European Commission under Capacities 7th Framework Programme, Grant Agreement 312453
LHC: pp, AA & pA Kollisionen höchster Energiepp Parameter:
ECM =
14 TeV design
8 TeV in 2012
L = 1034 cm-2s-1
1983 LEP Note 440 - S. Myers and W. Schnell proposetwin-ring pp collider in LEP tunnel with 9-T dipoles
1991 CERN Council: LHC approval in principle1992 EoI, LoI of experiments 1993 SSC termination 1994 CERN Council: LHC approval1995-98 cooperation w.Japan,India,Russia,Canada,&US 2000 LEP completion2006 last s.c. dipole delivered2008 first beam2010 first collisions at 3.5 TeV beam energy 2015 collisions at ~design energy (plan)
>30 years!now is the time to plan for ~2040
LHC – historische Entstehung
C. Grojean, 2nd LEP3/TLEP workshop, 18 June 2012
DIE Frage der nächsten Jahrzehnte
kreisförmige Higgs-Fabriken
epgge+e-
pp
LHeCSAPPHiRETLEPVHE-LHC/TLEP
ERL LHeC:recirculatinglinac withenergy recovery
)Large Hadron electron Collider (LHeC)100 MW total wall-plug power,Lep up to 2x1034 cm-2s-1
next LHeC workshopChavannes-de-Bogis20-21 January 2014indico.cern.chconfId=278903
two SC linacs, 3-pass up, 3-pass down; 6.4-mA 60-GeV e-’s collide w. LHC p/ions, e- RF grad ~20 MV/m, 800 MHz
(C=1/3 LHC allows for ion clearing gaps)A. Bogacz, O. Brüning, M. Klein, D. Schulte, F. Zimmermann, et al
LHeC ERL Anlage
s-channel production;lower energy;no e+ source
few J pulseenergy with l~350 nm
Source: Fiber lasers and amplifiers: an ultrafast performance evolution, Jens Limpert, Thomas Schreiber, and Andreas Tünnermann, Applied Optics, Vol. 49, No. 25 (2010)
power evolution of cw double-clad fiber lasers with diffraction limited beam quality over the past decade: factor 100 increase!
K. Moenig et al, DESY Zeuthen
passive optical cavity → relaxed laser parameters
physics
IR
laser optical cavity
gg Higgs-Fabrik?
SAPPHiRE: Small Accelerator for Photon-Photon Higgs production using Recirculating Electrons
scale ~ European XFEL,about 10-20k Higgs per year
Reconfigured LHeC
SAPPHiRE gg Higgs-Fabrik100 MW total wall-plug power, Lgg ~6x1032 cm-2s-1
Y. Zaouter, Amplitude Systems
J. Gronberg, LLNL
G. Mourou, LOA;M. Velasco, Northwestern U.
10 J at 10 kHz
EuCARD SAPPHiRE Day 19 February 2013
full powerw/o opticalcavity!
industry Livermore
ICAN
Laseroptionen für SAPPHiRE
(1 year = 107 s at design luminosity).
machine LHeC LHeC-HF SAPPHiRE
luminosity [1034 cm-2s-1]
0.1 (ep) 2 (ep) 0.06 (gg >125 GeV)
Higgs production cross section
~200 fb ~200 fb >1.7 pb
no. Higgs/yr 2k 40k >10k
Vergleich der ep & gg Higgs-Fabriken
European Strategyemphasizes high-energy
pp & e+e- collisions
J. Osborne, C. Waaijer, CERN, ARUP & GADZ,submitted to European Strategy Symposium 2012
ein 80-100 km Tunnel bei Genf
TLEP/VHE-LHC
“Of course, it should not be the size of an accelerator, but its
costs which must be minimized.”
Gustav-Adolf Voss,builder of PETRA,
† 5. October 2013
ist 80-100 km zu groβ?
energy = 91, 160, 240, 350 & 500 GeV c.m.circumference ~100 kmtotal SR power ≤ 100 MW#IPs = 2 or 4 beam-beam tune shift / IP scaled from LEPluminosity / IP ~ 5x1034 cm-2s-1 at the Higgs
~1000 x LEP2top-up injectionby* = 1 mm ~ sz
TLEP (e+e-) Hauptparameter
b* - historischer Trendyearb* [m]
PETRA
SPEARPEP, BEPC, LEP
CESR
DORISTRISTAN
DAFNE
CESR-c, PEP-II
KEKB
BEPC-II
SuperKEKBTLEP
𝜎 ∗=√𝜀𝛽∗IP beam size
beam commissioning will start in early 2015
• by*=300 mm (TLEP: 1 mm)• lifetime 5 min (TLEP: ~15min)• ey/ex=0.25% ! (TLEP: 0.2%)• off momentum acceptance
(±1.5%, TLEP: ±2%)• e+ production rate (2.5x1012/s,
TLEP: <1x1011/s)
SuperKEKB wird TLEP Machbarkeit zeigen
S. HendersonTLEP-Z
TLEP-WTLEP-H
TLEP-t
Luminosität von e+e- colliders
ultimate precisionat Z, WW, ZH ;sensitive to New Physics in multi-TeV range & to SM closure → case for VHE-LHC
ultimate energy reach up to 1 or 3 TeV ;direct searchesfor New Physics
Luminosität von e+e- Higgs-Fabriken
TLEP Herausforderungenshort beam lifetime from Bhabha scattering
lifetime limit from beamstrahlung
highly efficient SRF system (+ cheap magnets)
synchrotron radiation
quasi continuous top up injection
flat beams (small vertical emittance)final focus with large E acceptance
>50% wall plug to beam power per meter & critical energy
more benign than for other rings
A. Blondel
hohe Luminosität → booster ring
for top up injectioninto collider
Teilchenphysik bei TLEP?
and much more
John EllisKing’s CollegeLondon
LHC is the 1st Higgs factory! ECM=8-14 TeV,1034cm-2s-1