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&+*%+n= 6?68+:776 3F^%w5(+*%p785 + 19 +*:@3%()&%+:73% 4 %+78785 %+.-0/A7 4A776*@7%(95 %(+*:;%+7b 3 %(9CDT79P@43)0-0/76?%J 4/7);:P%()C@7%p7*e?=)7A72!; +*% s % :) = 6?:Ps %(+L]_^a` P3b % :§m=o1Hq7!

5%()9:>= :,+9;:+90-0/7%mB=)e :CD) 4 /B= :%(+:77%p7 \ % ):TD7 48776?%J =/7)aG31HZ 4A78@Es$%() 4 ->e39+.-0/ :,+*6?:@B=9D8965(+''«= :CD),+9,-0/7%_4 % ),/A='*:%p7 @7% )02134 % ),'*% :C5(4A736$!

0

0.05

0.1

0.15

0.2

0.25

0.3

0.35

0.4

0.45

0.5

0 500 1000 1500 2000 2500 3000 3500 4000N(B → J/Ψ KS)

∆sin

(2β)

js8s +':@4A776 <!q C O N G G R H H 6 G O N * F G & G 3*I6 N

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ZHg <po G)gToTo / 4 ZHg <po

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549W@7+*%9;%p7 /8D8/3%+7\ %-0/9;%'f+*)Ce34877689;)= :;%p7 % );6?%s %p7 9,+.-0/J 47)%(+:77% % )CJ/D8'*6)%(+.-0/7%&47)0-0/8J 4/3),4A776 %(+*:;%();% _78J/D)>@7% ),48776?%p7 =?7 %(+:7 96D8'.-0/7%(9 n= );6?% :12@7+*% +:9 J/D8'*6?%p7A@7%p7=?776%(6%ps$%+79+:7A@ C 3 9 @+*%£J 47) @+*% %(994A776 @7% )0 134 % ),'*% :C5(4A776 % )CJ/D)>@7% ),'+.-0/7% ; := :,+9;:,+fe 5(4 % )6);%+.-0/7%p721 +9:5%(+:7 eTD7 :+:7 4+*% ),'+.-0/7% )jn= );6?% :Cs % :)+*%s?D7 % :§ =<o 9_)6D =/7)78D:6%+78@+*6$!T5%(9,/A='fs9"48N@B= 9$n= )6%(: 9 % -0/B=)7+9,-/ 5(48?% ),' =99+*6 9;%(+:7 4A7A@ %(+:77% /8D8/7%b% :;),+*%s 99+.-/3%()/7%(+*:=6= )=?78:,+*% )%p72!^ +:7 4 % ),'479: @7%(91)CD?:6D77%p79;:)>=/'9 @47),-/@7+*%^ +:7 +*)Ce 4A776w@3%9ln= );6?% :,9m@B= )CJ7+.-0/ : % )CJ/D8'*6?%p72!

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js8s +':@4A776 <?![Y C 0 U G U 8 T6 : N D 6 qF H 8 T6 N

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Halle Süd (ZEUS)

HERA

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Halle NORD (H1)

Halle WEST (HERA-B)

Halle OST (HERMES)

PETRA

HASYLAB

DORIS

Positronen

Protonen

LINAC III

HERA

DORIS

HASYLAB

DESY III

PETRA

DESY II

HERA Halle West

LIN

AC

II

PIA

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PETRA-Füllung

DESY III-Füllung

5 ungefüllteBunche (2x)

0 20 40 60 80 100 120 140 160 180 200 220Bunchnummer

Kickerlücke

Pilotbunche (6x)

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0

10

20

30

40

50

60

70

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3.5 4 4.5 5 5.5 6 6.5 7

Drahtposition [σ]

Tar

gete

ffizi

enz

[%]

C AlCu

Drahtabmessung: 50x500 µm

Kopplung: 0.01

Kollimatorpositionen:

gefüllte Symbole = 7 σ

ungefüllte Symbole = 9 σ

Wechselwirkungsrate [MHz]

Tar

gete

ffizi

enz

[%]

Kohlenstoff 50µm x 500µm

Aluminium 50µm x 500µm

Kupfer 50µm x 500µm

0

10

20

30

40

50

60

70

0 10 20 30 40 50 60

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Target

elektromagnetischesKalorimeter

Ringbild-Cerenkovzähler

Übergangsstrahlungs-detektor

Innere und äußereSpurkammern

Silizium-StreifenVertexdetektor

THigh-pKammern

y

x

z

strahl

Proton-strahl

Myon Detektor Magnet

Elektronen-

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y

xz

a)

p

Target

Superlage

0.48

m

Targetmechanik

p

Targetzone

2.61 m

HF-Abschirmung

10 mrad

Austrittsfenster

250 mrad

1.06

m

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0.3 mm

2.8 mm

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Detektor

DetektorEreignisrateRechenzeit Reduktionsfaktor

4 s

100 ms

5 ms

1

200

100

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Vetozähler

Flansche

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y

x

z

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Vorwärts-Vetozähler

(1999 II - 2000)

Triggerzählerπ2x ( x [220 - 120] x 10) mm

4x (52 x 52 x 10) mm

Vetozähler4x (300 x 150 x 10) mm8x (90 x 96 x 5) mm

4x (26 x 26 x 10) mm

Teleskopzähler

b) c) d)

a)

Target

TriggerzählerTeleskopzähler(1996 - 1997)

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Übergangsstrahlungs-detektor

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Ringbild-Cerenkovzähler

Vertextank

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Myondetektor

33

33

32

y

xz

Teleskopzähler

Teleskopzähler(1998 - 1999 I)

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Exp. NIM

CAMAC

VME

F1, ALL, BG

TDC-Start

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>>

RS Q >

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&

&

&

ADC-Clear

TDC-Clear

TDC-Start

ADC-Gate

G1(Auslesestart)

InhibitCAMAC-

LAM

TRIG

T

NIM

READYBX

F1

BX-delay

delayBX-

PreBX

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CAMAC-Inh.

READY

Zeitachse

Signal

1BX

TRIG

G1

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>>

RS Q

&

>>

RS Q

&T

I/O

1BX

VME-Stop

NIM

TRIG

PRETRIG

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0.075

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a = 0.06947 ± 0.00004cu = 0.999987 ± 0.000007

χ2/ndF = 1.58

RBX(eff) = (6.35 ± 0.01) MHz

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= 0.81 ± 0.36

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14:08 14:21

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SEPARATRIX

−π π

INSTABILSTABIL,LINEAR

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Separatrix(208 MHz)

208 MHz-System

52 & 208 MHz-System

innere Separatrix

äußere Separatrix(52 & 208 MHz)

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!#"%$& ('*)+,-./#"102 3,45,47698;:=<?>@A)#B), CD:=/#"

10

10 2

0 50 100 150 200 250 300 350 400 450 500FADC-Kanal [24 ns ]

Ein

träg

e

a)

0

50

100

150

200

250

-5 -4 -3 -2 -1 0∆T [µs]

Ein

träg

e

τ1 = 0.476 µs

τ2 = 1.404 µs

τ3 = 3.077 µs

b)

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16:30 17:00 17:30 18:00 18:30 19:00 19:30Zeit [h]

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(208 MHz-System)

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Separatrix

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!#"%$& ('*)+,-./#"102 3,45,47698;:=<?>@A)#B), CD:=/#"

0

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8

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0 2 4 6 8 10 12 14tStrahl [h]

Nak

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1999A (Ep = 920 GeV) 1998 (Ep = 920 GeV) 1997 (Ep = 820 GeV)

Meßreihe 1999: Ep = 820 GeV

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4:12 4:24 4:36 4:48 5:00 5:12 5:24Zeit [h]

RC

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Ep = 820 GeV

tStrahl = 4h 10’

RCB / RWW = (15.6 ± 0.7) %

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c)

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0.8750.9

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1.0251.05

0.6 0.8 1 1.2 1.4 1.6 1.8 2

I DC [m

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-3

-2.95

-2.9

-2.85

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0:36 1:00 1:24 1:48Zeit [h]

no

m. D

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10-1

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19 19.25 19.5 19.75 20 20.25 20.5 20.75 21 21.25

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19:00 19:30 20:00 20:30 21:00Zeit [h]

Dra

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0

0.025

0.05

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0.15

0.175

0.2

100 200 300 400 500 600 700 800FADC-Kanal [24 ns]

λ

0

1

2

3

4

5

6

100 200 300 400 500 600 700 800FADC-Kanal [24 ns]

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"!$#%'&)(*+,-."!0/12+34+36587<;>=?@("A(+CB<."!

0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

1.8

2

100 200 300 400 500 600 700 800FADC-Kanal [24 ns]

λ

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0

1

2

3

4

5

6

7

8

9

100 200 300 400 500 600 700 800FADC-Kanal [24 ns]

λ

:RBQB)>SBJ;@HQN@V%JIC$C$9"@2$9! 43 QL F < F#A,@$B4?#2@$K43 lZ$B#%$9AQ f?*.,.$& ! @,"?#%$&_:L 7E$9";:f43"c^Q;#2$9 @,67E#L A."S _#3:9O]?n%AQ < %"!\#V (4 $9# V%\#%U ' F,%! @,W43E`P?Q%$BQ < 43 ("$& 6`P?Q%$BQ < b:! 5V 4_43"#%U:+4QL_ 5# $ *! ! @,"?#%$&+:C$9?#,@ <S

=8>?6@B)< BQ69B>S;@J;D@I69;oSUJ8B69; O : E83FI=FI;69; ^ A TQ69>HGSD6A88>S;@ J;BZB>?6 O : O]\ TQ6 Y8>SRT6N;=6TBJ8SGSDZB>?6 69838>S;@G698J;@cB69<\R`>?=Aj*FHKV<=>S;@^_X6 KVR 6A8SJ<3=36N;lKGJo*:RTQ6A83=J8 Y@I836N;DY969; m FI8386S>?6A8=36N;xtW;H=6A83@I8J;B69<VN~ UJ8CB)KG< O :=^D_ O]\ TQ6A8>SRT6N;=t6A8@G6%B,6N;<>HGSDKB D UKG;@>?@*MIFIR _*6A=8>?6@B)<3Y9J<3=LKV;B`B69<j*FHKG<3=>S;@\_X6 KVR F>HG m 6A8<EKB,698iF@ou=R KS< A >?=J)KV=>?FEY;69; PEBQ69>,B69;69;[69>S;`6J[Y9>?69;H=6A8X_*6A=8>?6@B B69< O :=^D_ /6A=36 m =FI8<E869BJDYN>?6A83=WW>?8B[FbB6A8<3FI@HKV8E@KG;Y7KVJ<3@I69<SGSD ?FI<<369;`>S<3=%NG:?6A8B>S;@<]WW>?8B[B6A8jXFHKG<3=>S;D@t_*6NKGR F>HG m 6A8EY9J8EQ69>?=W469>?=3698 B,69=38>?6@BQ69; PJR B>?6 O 8D UFDbJ;@ B69<?j*FHKG<3=>S;@ _*6NKGR >S;BJDYN>?6A83=69;i8FI=3F;69;bJ;OY=6A83@I8J;B69< BQ69>SR O I O A O]\ T,698>SR`69;H=Y9J BQ6A@I869;YA69; N KBQ69>>W>?8Bl69>S;w_*6A=8>?6%B< YR`FDBJ<d@I6@W UKED?=VP >S; B69R B>?6Z_X6969>S;H=38 UKGSDH=>?@J;@G6N;qoSUJ8 B)KG< O :=^D_ O&\ TQ6A8>SR`69;H=R[>S;>SR[K <>S;B N

C "!$#%'&)(*+,-."!0/12+34+36587<;>=?@("A(+CB<."!

0

0.25

0.5

0.75

1

200 400 600 800Zeit [24 ns]

λ

0

0.2

0.4

0.6

0.8

200 400 600 800Zeit [24 ns]

0

0.2

0.4

0.6

200 400 600 800Zeit [24 ns]

λ

0

0.2

0.4

0.6

200 400 600 800Zeit [24 ns]

0

0.2

0.4

200 400 600 800Zeit [24 ns]

λ

0

0.2

0.4

200 400 600 800Zeit [24 ns]

00:15 01:20

04:20 05:20

06:20 08:20

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