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A>CB D - brisbane/fastfiles/QingThesis.pdf · Ad w n Wag lhm X w RTWqS W `IWqUvfFWqW R S - v V W d...

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X � �VI Y ����� U T � �V�����A�

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2540401-001

0.10 0.11 0.12 0.13 0.14 0.15 0.16 0.17M (GeV)

Com

bina

tions

/ M

eV

= 134.3 MeV

= 5.6 MeV= 133.8 MeV

= 5.4 MeV

Both 's in Barrel

1 Barrel, 1 Endcap

p > 0.3 GeV/c0

p > 0.3 GeV/c0

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Slow Control Monitoring

Data Flow Control (Trigger System)

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Si- VERTEX

VME2 Crates

DataMover

TIM

DataMover

DataMover

TIM

RICH

Drift Chamber

VME8 Crates

Fastbus8 Crates TIM

DataMover

TIM

Csi

Fastbus4 Crates

DataMover

TIM

DataMover

TIM

Muon

Trigger

Fastbus2 Crates

VME4 Crates

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0

5

10

15

20

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35

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tag-π +π S0K

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10

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2

4

6

8

10

12

14

16

18

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22

24

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0

5

10

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0K

r E j H&DI%?2*P�� � � R���� ��� e G<P � R���� ��� GSE 1 % #M35K&1 G8GS%<9;% 7C4 E !0K�J5! D #M3L7'.wj D ! H K&1 %WG 4 E;h 354 E !0K P

)4/c2(GeV2missingM

-0.1 0 0.1 0.2

)4

/c2

Eve

nts/

(0.0

05G

eV

0

2

4

6

8

10

12

14

16

18

20

tag-π +π 0SK

r E j H&DS% 2*P��O) � 6 �* & ��� & 3�� 1 E;G 4 DIE # H 4 E !0K�J5! D � R ��� ��� e G<P � R ��� ��� , 3 D 4 E 3 92DI% 79!LK G 4 DSH 7C4 E !LK P"$#&%�GS# 351 % 1 #&E;G 4-!0j D 3 h}E;G�� !0K>4 % � 3 DI9 !�#M357'.�j D ! H K*1 P

������� � � ������ =� �� �������� ��� ����� � � � � � �

)4/c2 (GeVmissingM-0.1 0 0.1 0.20

2

4

6

8

10

12

14

16

18

20

)4/c2 (GeVmissingM-0.1 0 0.1 0.20

2

4

6

8

10

12

14

16

18

20

r E j H&DS% 2*P��.� � r E 4B4"! 6 �* & ��� & 3 � 1 E:G 4 DSE # H 4 E !0K P "$#*% 79!0K>4 E K H&H&h #M3L7'.wj D ! H K&1 E;GB, 3 D 3 h|% 4 %WD �E �<% 1 H&GSE K&ji3 � K&1:! D 1 %<D$, ! 9:= K/! hiE 3 9 J H K&7C4 E !0K P

)4/c2(GeV2missingM

0.1 0.2 0.3 0.4 0.5

)4

/c2

Eve

nts/

(0.0

05G

eV

0

50

100

150

200

250

300

tag-π +π S0K

r E j H&DS%G2*P��L. � �sE;GIGSE K*j h 3 GSG�G"HwH 3 DI% 1 E:G 4 DIE # H 4 E !LK�J5! D � � � � � � X8#&% K !0K % �}E;G�E 1 % K>4 ENUM% 13 G � R���� ��� P � ! 9;E 1 #&E:G 4-!Lj D 3 h E:Gl� !0K>4 % � 3 DS9 ! Y 1/!54 G 3 DI% 1M354{3 YnGS# 3L1 % 1 #&E:G 4"!0j D 3 h E:G#M3L7'.wj D ! H K&1 P

������� � � ������ =� �� �������� ��� ����� � � � � � �

)+π 0

S(K2M

0 1 2 3

)-π

0 S(K2

M

0

0.5

1

1.5

2

2.5

3

-π +π S0K -π +π S0K

)-π 0

S(K2M

0 0.5 1 1.5 2 2.5 30

20

40

60

80

100

120

140

-π +π S0K -π +π S0K

)+π 0

S(K2M

0 1 2 30

20

40

60

80

100

120

140

-π +π S0K -π +π S0K

)-π +π(2M0 1 2 3

0

10

20

30

40

50

60

70

-π +π S0K -π +π S0K

r E j H&DS%C2*P�� : � � R���� ��� � 3 9;E 4 �l,&9 !54�3LK*1 ,&D ! �I% 7<4 E !0K G J5! D � R���� ��� e GWP� � ��� ��� 1M3~463G 3 h|,&9:%LP

������� � � ������ =� �� �������� ��� ����� � � � � � �

)+π 0

L(K2M

0 1 2 3

)-π 0 L

(K2M

0

0.5

1

1.5

2

2.5

3

-π +π L0K -π +π L0K

)-π 0

L(K2M

0 0.5 1 1.5 2 2.5 30

20

40

60

80

100

120

140

160

-π +π L0K -π +π L0K

)+π 0

L(K2M

0 1 2 30

20

40

60

80

100

120

140

-π +π L0K -π +π L0K

)-π +π(2M0 1 2 3

0

10

20

30

40

50

60

70

80

-π +π L0K -π +π L0K

r E j H&DS%C2*P�� � � � � ��� ��� � 3 9:E 4 �l,&9 !L4�3LK&1 ,&D ! �I% 7<4 E !0K G J5! D � R ��� ��� e GWP� � ��� ��� 1M3~463G 3 h|,&9:%LP

������� � � ������ =� �� �������� ��� ����� � � � � � �

)+π 0

S(K2M

0 1 2 3

)-π 0 S

(K2M

0

0.5

1

1.5

2

2.5

3

-π +π S0K -π +π S0K

)+π 0

S(K2M

0 1 2 3

)-π 0 S

(K2M

0

0.5

1

1.5

2

2.5

3

-π +π S0K -π +π S0K

)+π 0

S(K2M

0 1 2 3

)-π 0 S

(K2M

0

0.5

1

1.5

2

2.5

3

-π +π S0K -π +π S0K

)+π 0

S(K2M

0 1 2 3

)-π 0 S

(K2M

0

0.5

1

1.5

2

2.5

3

-π +π S0K -π +π S0K

)+π 0

S(K2M

0 1 2 3

)-π 0 S

(K2M

0

0.5

1

1.5

2

2.5

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-π +π S0K -π +π S0K

)+π 0

S(K2M

0 1 2 3

)-π 0 S

(K2M

0

0.5

1

1.5

2

2.5

3

-π +π S0K -π +π S0K

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GeV

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(K2M

1

2

3

DP efficiency

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0

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2

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