High-Energy Collider Parameters

3 Pages·1998·0.075 MB·English

22.High-energycolliderparameters 1
HIGH-ENERGYCOLLIDERPARAMETERS:e+e− Colliders(I)
Thenumbersherewerereceivedfromrepresentativesofthecollidersin1998(contactC.G.Wohl,LBNL).Manyofthenumbersofcoursechange
withtime,andonlythelatestvalues(orestimates)aregivenhere;thoseinbracketsareforcomingupgrades. Quantitiesare,whereappropriate,
r.m.s.H andV indicatehorizontalandverticaldirections. Parameters forthedefunctSPEAR,DORIS,PETRA,PEP,andTRISTANcolliders
maybefoundinour1996edition(Phys.Rev.D54,1July1996,PartI).
VEPP-2M DA(cid:8)NE (cid:30)FACTORY (cid:28)-CHARM BEPC VEPP-4M
[roundbeams] (Frascati) (Novosibirsk) FACTORY (China) (Novosibirsk)
(Novosibirsk) (Novosibirsk)
Physicsstartdate 1974[1998] 1998 2001 ? 1989 1994
Maximumbeamenergy(GeV) 0.7 0.510 0.55 2.1 2.2 6
[0.55] (0.75max.)
Luminosity(1030 cm−2s−1) 5[100] 135(!540) 2500 10000 10at2GeV 50
Timebetweencollisions((cid:22)s) 0.03 0.0108(!0.0027) 0.007 0.027 0.8 0.6
Crossingangle((cid:22)rad) 0 (cid:6)(1:0to1.5)(cid:2)104 0 0 0 0
Energyspread(units10−3) 0.36 0.40 0.43 0.002{0.7 0.58at2.2GeV 1
Bunchlength(cm) 3 3.0 1 1 (cid:25)5 5
Beamradius(10−6 m) H=V: 300/10 H:2100 35(beamsare 33 H:890 H:1000
[90(round)] V:21 round) V: 37 V: 30
Freespaceatinteraction (cid:6)1 (cid:6)0:46 (cid:6)2 (cid:6)1.5 (cid:6)2.15 (cid:6)2
point(m) ((cid:6)157mradcone)
Luminositylifetime(hr) continuous 2 continuous continuous 7{12 2
Fillingtime(min) continuous 3(toppingup) continuous continuous 30 15
Accelerationperiod(s) | | | | 120 150
Injectionenergy(GeV) 0.2{0.6 0.510 | 2.1 1.55 1.8
[0.2{0.55]
Transverseemittance H=V: 110/1.3 H:1000 H:100{10000 H:660 H:400
(10−9(cid:25)rad-m) [170] V:10 125 V:1{10000 V: 28 V: 20
(cid:12)(cid:3),amplitudefunctionat H=V: 0.45/0.045 H:4:5 H:1:2 H:0:75
0.01 0.01
interactionpoint(m) [0.05] V:0:045 V:0:05 V:0:05
Beam-beamtuneshift H=V: 200/500
percrossing(units10−4) [1000] 400 1000 500 350 500
RFfrequency(MHz) 200 368.25 700 700 199.53 180
Particlesperbunch
2[6.7] 8.9 5 20 20at2GeV 15
(units1010)
Bunches perring 1 30(!120) 11 95 1 2
perspecies
Averagebeamcurrent 50[160] 1313(!5250) 550 1120 40at2GeV 80
perspecies (mA)
Circumferenceorlength(km) 0.018 0.0977 0.047 0.773 0.2404 0.366
Interactionregions 2 2 1 1 2 1
Utilityinsertions 1 2(cid:2)2 1 1 4 1
Magneticlengthofdipole(m) 1 e+: 1.21/0.99 0.8 1.47 1.6 2
e−: 1.21/0.99
Lengthofstandardcell(m) 4.5[9.0] | | 5 6.6 7.2
Phaseadvancepercell(deg) 280[560] | | 60 (cid:25)60 65
Dipolesinring 8 e+: 8(+4wigglers) 22 112 40 78
e−: 8(+4wigglers) +4weak
Quadrupolesinring 20[12] e+=e−: 53/53 22 112 68 150
Peakmagnetic(cid:12)eld(T) 1.8[1.5] 1.2(!1.76)dipoles 1.8 0.13 0.9028 0.6
1.8wigglers at2.8GeV
2 22.High-energycolliderparameters
HIGH-ENERGYCOLLIDERPARAMETERS:e+e− Colliders(II)
The numbers here were received fromrepresentatives of the colliders in 1998. Many of the numbers of course change with time, and onlythe
latest values (or estimates) are given here. Quantities are, where appropriate, r.m.s. H and V indicate horizontal and vertical directions; s.c.
indicatessuperconducting.
CESR KEKB PEP-II SLC LEP
(Cornell) (KEK) (SLAC) (SLAC) (CERN)
Physicsstartdate 1979 1999 1999 1989 1989
e−: 7{12 (9.0nominal) 92in1997
Maximumbeamenergy(GeV) 6 e−(cid:2)e+: 8(cid:2)3:5 e+: 2.5{4(3.1 " ) 50 (100=max. foreseen)
(nominalEcm=10:5GeV)
Luminosity(1030 cm−2s−1) 470at5.3GeV 10000 3000 2.5 24atZ0
50at>90GeV
Timebetweencollisions((cid:22)s) 0.028to0.22 0.002 0.0042 8300 22
Crossingangle((cid:22)rad) (cid:6)2000 (cid:6)11;000 0 0 0
Energyspread(units10−3) 0.6at5.3GeV 0.7 e−=e+: 0.61/0.77 1.2 1.0
Bunchlength(cm) 1.8 0.4 e−=e+: 1.1/1.0 0.1 1.0
Beamradius((cid:22)m) H:500 H:77 H:181 H:1:5 H:200
V: 10 V: 1:9 V: 5:4 V:0:5 V: 8
Freespaceatinteraction (cid:6)2.2((cid:6)0.6 +0:75/−0:58 (cid:6)0:2, (cid:6)2.8 (cid:6)3.5
point(m) toRECquads) (+300/−500)mradcone (cid:6)300mradcone
Luminositylifetime(hr) 3{4 2 2.5 | 20atZ0
10at>90GeV
Fillingtime(min) 10(toppingup) 8(toppingup) 3(toppingup) | 20tosetup
20toaccumulate
Accelerationperiod(s) | | | | 550
Injectionenergy(GeV) 6 e−=e+: 8=3:5 2.5{12 45.64 22
Transverseemittance H:240 H:18 e−: 48(H),1.5(V) H:0:5 H:35
((cid:25)rad-nm) V: 6 V: 0:36 e+: 64(H),2.0(V) V:0:05 V:0:25!1
(cid:12)(cid:3),amplitudefunctionat H:1:0 H:0:33 e−: 0.67(H),0.02 (V) H:0:0025 H:1:5
interactionpoint(m) V:0:018 V:0:01 e+: 0.50(H),0.015(V) V:0:0015 V:0:05
Bepamer-bcreoasmsintgun(eunsihtisft10−4) 420 VH::359200 300 | 500
RFfrequency(MHz) 500 508.887 476 | 352.2
Particlesperbunch 15 e−=e+: 1.3/3.2 e−=e+: 2.7/5.9 4.0 30incollision
(units1010) 60insinglebeam
Bunchesperring
9trainsof2bunches 5120 1658 1 4trainsof1or2
perspecies
Averagebeamcurrent 180 e−=e+: 1100/2600 e−=e+: 995/2161 0.0008 4atZ0
perspecies(mA) 2.5at>90GeV
Beampolarization(%) | | | e−: 80 55
Circumferenceorlength(km) 0.768 3.016 2.2 1.45+1.47 26.66
Interactionregions 1 1 1(2possible) 1 4
Utilityinsertions 3 3 5 | 4
Magneticlengthofdipole(m) 1.6{6.6 e−=e+:5.86/0.915 e−=e+: 5.4/0.45 2.5 11.66/pair
Lengthofstandardcell(m) 16 e−=e+:75.7/76.1 15.2 5.2 79
Phaseadvancepercell(deg) 45{90(no 450 e−=e+: 60/90 108 90/60
standardcell)
Dipolesinring 86 e−=e+:116/112 e−=e+: 192/192 460+440 3280+24inj.
+64weak
Quadrupolesinring 104 e−=e+:452/452 e−=e+: 290/326 | 520+288
+8s.c.
o
Peakmagnetic(cid:12)eld(T) 0:3normal at8 e−=e+:0.25/0.72 e−=e+: 0.18/0.75 0.597 0.135
0:8high(cid:12)eld GeV
22.High-energycolliderparameters 3
HIGH-ENERGYCOLLIDERPARAMETERS:ep,pp,andppColliders
The numbers here were received fromrepresentatives of the colliders in 1998. Many of the numbers of course change with time, and onlythe
latest values(orestimates) aregivenhere. Quantities are,where appropriate,r.m.s.H,V,and,s.c.indicatehorizontalandverticaldirections,
andsuperconducting. TheSSCiskeptforpurposes ofcomparison.
HERA SppS TEVATRONy LHC SSC
(DESY) (CERN) (Fermilab) (CERN) (USA)
Physicsstartdate 1992 1981 1987 2005 Terminated
Physicsenddate | 1990 | | |
Particlescollided ep pp pp pp PbPb pp
Maximumbeamenergy e: 0:030 0.315(0.45in 1.0 7.0 2.76TeV/u 20
(TeV) p: 0:82 pulsedmode)
Lu(m10in3o0sictmy−2s−1) 14 6 210 1:0(cid:2)104 0.002 1000
Timebetweencollisions((cid:22)s) 0.096 3.8 0.396 0.025 0.125 0.016678
Crossingangle((cid:22)rad) 0 0 0 (cid:21)200 (cid:20)200 100to200
(135nominal)
Energyspread(units10−3) e: 0:91 0.35 0.09 0.1 0.1 0.055
p: 0:2
Bunchlength(cm) e: 0:83 20 38 7.5 7.5 6.0
p: 8:5
Beamradius(10−6m) e: 280(H);50(V) p: 73(H);36(V) p: 34 16 15 4.8
p: 265(H);50(V) p(cid:22): 55(H);27(V) p(cid:22): 29
Freespaceatinteraction (cid:6)5.8 16 (cid:6)6.5 38 38 (cid:6)20
point(m)
Luminositylifetime(hr) 10 15 7{30 10 6.7 (cid:24)24
Fillingtime(min) e: 60 0.5 30 6 20 72
p: 120
Accelerationperiod(s) e: 200 10 86 1200 1500
p: 1500
Injectionenergy(TeV) e: 0:012 0.026 0.15 0.450 177.4 2
p: 0:040 GeV/u
Tra(1n0s−ve9r(cid:25)seraemd-imtt)ance pe:: 425((HH));;65((VV)) pp(cid:22):: 95 pp(cid:22):: 23::55 0.5 0.5 0.047
(cid:12)(cid:3),amplitudefunctionat e: 1(H);0:7(V) 0.6 (H) 0.35 0.5 0.5 0.5
interactionpoint(m) p: 7(H);0:5(V) 0.15(V)
Bepamer-bcreoasmsintgun(eunsihtisft10−4) pe:: 19102((HH));;3690((VV)) 50 pp(cid:22):: 3978 34 | 138lhoneagdraonnge
RFfrequency(MHz) e: 499:7 100+200 53 400.8 400.8 359.75
p: 208:2=52:05
Particlesperbunch e: 3 p: 15 p: 27 10.5 0.0094 0.8
(units1010) p: 7 p(cid:22): 8 p(cid:22): 7:5
Bunchesperring e: 189 6 36 2835 608 17,424
perspecies p: 180
Averagebeamcurrent e: 40 p: 6 p: 81 536 7.8 71
perspecies(mA) p: 90 p(cid:22): 3 p(cid:22): 22
Circumference(km) 6.336 6.911 6.28 26.659 87.12
Interactionregions inepte:rn2;ale;(cid:12)px:ed1teaarcghe,t 2 2highL 2h+ig1hL 1 4
Utilityinsertions 4 | 4 4 2
Magneticlength e: 9:185 6.26 6.12 14.3 Mostly14.928
ofdipole(m) p: 8:82
Lengthofstandardcell(m) e: 23:5 64 59.5 106.90 180
p: 47
Phaseadvancepercell(deg) e: 60 90 67.8 90 90
p: 90
o
Dipolesinring e: 396 744 774 1232 H:8336 in2rings
p: 416 maindipoles V: 88
Quadrupolesinring e: 580 232 216 692focussing 2084g2rings
p: 280 +96skew
e:C-shaped Htypewith s.c. s.c. s.c.
Magnettype p:s.c.,collared, bent-up cos(cid:18) 2in1 cos(cid:18)
coldiron coilends warmiron coldiron coldiron
Peakmagnetic(cid:12)eld(T) e: 0:274 1.4(2in 4.4 8.3 6.790
p: 4:65 pulsedmode)
psourceaccum. rate(hr−1) | 6(cid:2)1010 20(cid:2)1010 | |
Max. no. pinaccum. ring | 1:2(cid:2)1012 2.6(cid:2)1012 | |
yTEVATRONnumbersarefortheyear2000,whenitagainrunsincollidermode.