250 ~500GeV TeV 2001 R&D
Schedule/Road Map for LC's Year LC/JLC NLC TESLA H.Sugawara, KEK,9/4/95 T.Barklow, Gran Sasso,6/3/95 B.H.Wiik, Gran Sasso,5/29/95 1996 ZDR(SNOWMASS96) First CDR ICFA at KEK to discuss LC etc... 1997 JLC Design Study/CDR Detailed comparison with other collider designs LC97-International Review 1998 recommendation from CDR Complete CDR including Science Council of Japan construction schedule and cost 1999 Detailed engineering design Office of preparation for International Accelerator Center ( IAC ), various committees including the cite selection. 2000 If approved 2001 IAC starts. Construction begins Construction of LC starts. 2006 Luminosity Experiment 2007 Experiment starts.
From Marciano's talk at Snowmass96, June 1996, SUSY - most radical, most appealing, most ambitious, and most likely; Almost totally accepted by theorists.
σ ± Λ
The Value of the Electromagnetic Coupling at Large Momentum Transfer -1 2 α (Q ) 138 136 134 132 130 128 < Q γ1 Q γ2 > hadronic < e + e - µ + µ e + e - (e + e - ) µ + µ 126 10-4 10-3 10-2 10-1 10 0 10 1 10 2 2 1/2 Q ( GeV/c ) <Q γ1 Q γ2 > 1/2 is the typical (median) product of momentum transfers for antitagged two photon mupair.
1/αi µ ( ) 80 60 40 1/α 1 1/α 2 a) SM M.Drees et al.,madph-95-879 20 1/α 3 0 0 5 10 15 20 log 10 µ [GeV] 1/αi µ ( ) 80 60 40 20 b) MSSM, M SUSY =M Z 1/α 1 1/α 2 1/α 3 GUT 0 0 5 10 15 20 LEP log 10 µ [GeV]
eff 2 Sin θw 0.237 0.236 0.235 0.234 0.233 STANDARD MODEL M Higgs 1000 120 300 60 B. Jacobsen, CERN-PPE/94-97 Recontres de Moriond, Meribel 1994 M top 4 Colors, 1 Generation TECHNICOLOR 174 ± 16 (CDF) 0.232 0.231 LEP,1993 SUPERSYMMETRY 220 0.23 0.229 83 83.5 84 84.5 85 Γ lepton ( MeV ) : the Standard Model expectation without electroweak radiative correction
500 10 3 GeV Λ = 1 TeV M.Lindner, ZPC31,295(1986) λ = strong interaction M Higgs ( GeV ) 400 300 10 6 GeV 10 10 GeV 200 100 10 15 GeV GUT Scale 10 19 GeV Plank Scale Landau Pole λ < 0 unstable vacuum 0 CDF/D0 0 100 200 300 M top ( GeV )
γγ µ β
Nevent = L(luminosity) x σ (cross section) typically L= 5 x 10 33 cm -2 s -1 Lyear = L x 10 7 (sec)=50fb -1 10 6 Σqq q=t σ(fb) 10 3 µ + µ ZZ cosθ <0.8 W + W cosθ <0.8 tt 175GeV 500,00 5,000 Nevent/year for 50fb -1 1 10 2 Zh 120GeV ~ µ + ~ R µ R 140GeV H + H 190GeV 0 200 400 600 800 1000 s (GeV) ~ µ + ~ L µ L 230GeV ~ χ + ~ χ HA 400GeV 220GeV H + H 410GeV 50
e + e - h Z at _ Ecm=300GeV h b b, Z µ + µ 100 cm
e + e - h Z at _ Ecm=300GeV h b b, Z µ + µ 100 cm
µ µ µ µ µ χ γ µ µ χ Ε µ ( µ µ χ µ χ
χ χ χ µ χ χ µ χ χ γ χ χ χ χ ν χ ν q q χ ν µ, Μ 2 χ χ
τ σ τ τ ρ τ τ ρ ν τ τ θ τ τ χ τ γ τ τ χ τ τ χ τ β τ θτ τ θτ χ τ τ β )
JLC detector Calorimeter _ σ E /E=15%/ E 1% (e,γ) _ σ E /E=40%/ E 2%(had) Central Drift Chamber σ Pt /P t =1.1x10-4 P t 0.1% µ + Super con. magnet coil (2Tesla) Muon Chamber µ 16x16x16 m 3 15,000 ton magnifing IP, Vertex Detector δ 2 =11.4 2 +(28.8/P) 2 /sin 3 θ (µm 2 )
λ β β µ σ σ
ATF µ µ ATF-LINAC (S-band, 70m, 9 klystrons of 85MW,4.2µsec with SLED) 1995-1996 ( 28.7 MV/m with beam ) ECS (Energy Compensation System) ±
ATF-DR DR SLC ATF JLC Ebeam(GeV) 1.2 1.54 1.98 Current(mA) 136 600 500 Emittance(10-6 rad m) 30/0.7 5/0.03 3.3/0.045 Damping time(m sec) ~5 9.2 ~5 bunches x trains 1 x 2 20 x 5 90 x 5 2 wigglers (16.3msec 9.2msec at 20Hz) 4 damped cavities ( ) extraction line for beam diagnoses: SR(>40µm), Laser wire, 4µmφ Carbon wire SLAC e+ Laser-Compton and more (ATF++ to be proposed). < 90µm < 60µm
X-band(11.4GHz) LINAC 50MV/m (1TeV/20km) 200MW 0.7x10 10 /bunch, 85 bunches, 1.4nsec spacing, σ z =90µm 65MW, 800nsec XB-72K 72mmφ 50nsec 55MW(500KV),100nsec 500(800)nsec 7 1997 47% PPM µ µ
λ=2.6 µ µ 2π/3
C-band(5.21GHz) LINAC µ
LC's f rf TESLA DESY 1.3 Super Con. TTF, 500MeV 1993-97 SBLC DESY 3.0 SBTA, 400MeV 1992-96 JLC-X KEK 11.4 ATF, 1.54GeV 1992-96 -C 5.7 S-linac, DR NLC SLAC 11.4 NLCTA,540-1028MeV 1993-96 SLAC FFTB, σ y =70nm 1989-93 VLEPP BINP 14 Single bunch BINP,400MeV 1992-97 CLIC CERN 30 2 beam acc. CTF1 1989-95 CTF2, 500MeV 1996-98
Accerelator Physics Linear Collider Workshop Year Workshop Location 1988 LC88 SLAC 1990 LC90 KEK 1991 LC91 Protvino 1992 LC92 Garmisch 1993 LC93 SLAC 1995 LC95 KEK Studies of Particle Physics at Linear Collider Year Study/Workshop Location 1987 SLAC Study Group SLAC La Thuile CLIC Study CERN 1988 SNOWMASS USA(Snowmass) 1989 1-st JLC Workshop KEK 1990 SNOWMASS USA(Snowmass) 2-nd JLC Workshop KEK 1991 LCWS91(EE500 Workshop) Saariselka, Finland 1992 Colliding Beam Workshops U.S.A. 3-rd JLC Workshop KEK 1993 LCWS93 Waikoloa, Hawaii 4-th JLC Workshop KEK 1994 5-th JLC Workshop KEK LC2000 Workshops Europe 1995 LCWS95 Morioka-Appi,Japan 1996.12 6-th JLC Workshop Tokyo univ.
Γ Γ α β κ γ λ γ µ
Luminosity -2-1 cm s 10 34 10 33 5 5 5 h x h MA,tanβ W / Z κ, λ t Mt,Γt,αs, g tth SUSY mo, M, µ t x tth - ttz - ~,χ l ~ + - x WLWL H(~ 0.7 TeV) -1 fb /year 100 10 10 32 0.5 1 2 Ecm TeV 1 1st 2nd