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Page 1: Mass (GeV/czimmer.csufresno.edu/~yogao/conf-talk/dpf00.pdf · 2007. 8. 15. · raf Helium Reservoir Muon Chambers Magnet Yoke Superconducting Coil Barrel Shower Detector Drift Chamber

� �� �� � �� � � �� � �� �

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� �� �� � �� � � �� �� � � ! � " � �� �#

$% & ' $ �( ( � ) � �� � ��

* � � � � �+ , , , � �- ./ + , , ,

01 234 56

7 89 :; <= > 8? 9 @

7 ;A BCD E BF =G H I J KLNM HOP QRS M HOP <= > J KLUT H

7 :A <V WXY F V >Z VA W E [\ ]Z F D < EZ F = Z =G ^ I J KL M ^ <= >G ^ I L _a` b cM ^

7 @d BA V ] < EZ F = FY G I J KLe M P fRM

7 : E C > g FY Q RS P Q Rh i V F > C W EZ F = Z =G >A W < g B

7 jA < BC VA kA = E FY l mon K l H Hqp r sat _au b c IG mG n v K r sat _au b c IG HG H v

Page 2: Mass (GeV/czimmer.csufresno.edu/~yogao/conf-talk/dpf00.pdf · 2007. 8. 15. · raf Helium Reservoir Muon Chambers Magnet Yoke Superconducting Coil Barrel Shower Detector Drift Chamber

�� �� �� � � � �� �� � �� � �� � � � � � � � � � �

9.44 9.46

Mass (GeV/c2)

0

5

10

15

20

25

σ (e

+ e- → H

adro

ns)(n

b) ϒ(1S)

10.00 10.020

5

10

15

20

25

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10.34 10.370

5

10

15

20

25

ϒ(3S)

10.54 10.58 10.620

5

10

15

20

25

ϒ(4S)

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� !� � � � � � � � � �" � # � � � � ��$ % & � ' ( � )$

* +,- ' ( � )� � � � � . / ��0 0 21 +3 45 & 687

* � , 9 ' ( � ) ( ��� : 0 0 � � � �� � � "

; <=>? @ABC >D ? EFC GH? ? B IJK L MC G NAD = G NO ? C PQC RB D = E GS =B D C < H AB T GH U= EA HB @

Page 3: Mass (GeV/czimmer.csufresno.edu/~yogao/conf-talk/dpf00.pdf · 2007. 8. 15. · raf Helium Reservoir Muon Chambers Magnet Yoke Superconducting Coil Barrel Shower Detector Drift Chamber

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� �

Helium Reservoir

Muon Chambers

Magnet Yoke

Superconducting CoilBarrel Shower DetectorDrift Chamber

Micro-Beta QuadrupoleVertex DetectorEnd Cap Time of FlightPole Tip Shower DetectorTime of Flight Scintillators

SVX Detector

0 1 2 3 4

Meters

raf

8? 9 @� �� @ W E��� �� i V ��� �

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8? 9 @� � � �� � F ] ��� � � �A d ��

� � _G G c�� �� u � � ���� ���D < gA V :Z ]A V EA >A EA W EF V

8? 9 @� � �� ` � � ��

� �A � : �! P#" ; <= > ; � 8$

; <=>? @ABC >D ? EFC GH? ? B IJK L MC G NAD = G NO ? C PQC RB D = E GS =B D C < H AB T GH U= EA HB @

Page 4: Mass (GeV/czimmer.csufresno.edu/~yogao/conf-talk/dpf00.pdf · 2007. 8. 15. · raf Helium Reservoir Muon Chambers Magnet Yoke Superconducting Coil Barrel Shower Detector Drift Chamber

0 � " �� � � � '� � � � - � � � � � # � �� � � �

� 0 � � � �� � � :� � � � � � � � �

� � F D >A = >A W < g k F >A Y F V BZ = ` kA < BC VA kA = E

� 0 � � � �� � � :� � � � � � � � �

� > >�� �� � k F VA B E < EZ B EZ W B Z = BZ = ` kA < BC VA kA = E

� 0 � � �� ) � �

� 9 < W ED gD Z� A J KLM HOY F V BZ = ` kA < BC VA kA = E

� 0 � � � �� �

� � VA A � �A = � C Z = Z = EA VY A VA = WA

� j < g <D D F � VA BF D C EZ F = FY EXA <= > � T < k d Z � C Z E g

� � V F B B k <= <= > � C Z = = P XA i � i X �� �� �� �

; <=>? @ABC >D ? EFC GH? ? B IJK L MC G NAD = G NO ? C PQC RB D = E GS =B D C < H AB T GH U= EA HB @

Page 5: Mass (GeV/czimmer.csufresno.edu/~yogao/conf-talk/dpf00.pdf · 2007. 8. 15. · raf Helium Reservoir Muon Chambers Magnet Yoke Superconducting Coil Barrel Shower Detector Drift Chamber

� �� � �� �� � � � � �

2030300-004

400

600

800

1000

1200

250

500

750

1000

1250

1500

000 03030 20 10 10 20 20101020

200

Can

did

ates

/ 0.

5

I I

J/ + IJ/ + Iee

[M( + I) IMJ/

] / (M)[M(e+( )e ( ))I IMJ/

] / (M)

II II

( a ) ( b )

� VA k B B EV < X D C = � i X F EF = BY V F k J KL I � m �n <VA >A EA W EA > Z = 8 B� W <D F V Z kA EA V <= > C BA > Z =

Z = ] <V Z <= E k < B B W <D W CD < EZ F =

� _ J KL I � m �n c Z = WVA < BA Bd g `� � � Z EX F C E < > > Z = � k F VA d < W� � V F C = >

; <=>? @ABC >D ? EFC GH? ? B IJK L MC G NAD = G NO ? C PQC RB D = E GS =B D C < H AB T GH U= EA HB @

Page 6: Mass (GeV/czimmer.csufresno.edu/~yogao/conf-talk/dpf00.pdf · 2007. 8. 15. · raf Helium Reservoir Muon Chambers Magnet Yoke Superconducting Coil Barrel Shower Detector Drift Chamber

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0

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( c ) ( d )

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E (G

eV)

Can

d.2.

5 M

eV/c

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0I

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0KsB0 J/0

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eV)

2030300-005

Beam - Constrained B mass (GeV/c2)

0KsC

and.

2.5

MeV

/c2

; <=>? @ABC >D ? EFC GH? ? B IJK L MC G NAD = G NO ? C PQC RB D = E GS =B D C < H AB T GH U= EA HB @

Page 7: Mass (GeV/czimmer.csufresno.edu/~yogao/conf-talk/dpf00.pdf · 2007. 8. 15. · raf Helium Reservoir Muon Chambers Magnet Yoke Superconducting Coil Barrel Shower Detector Drift Chamber

� ( � � � � � � � � ' 0 � � � �� � � � � � � �� ) � � � � " � �� �

" A W < g k F >A :Z � = <D � < W� � V F C = > 9 � WZA = W g _ � c r _� � �n � c

G H I J KL M H �� � �� � �� �

� i > < EA M HO IT mT n � u ` �� � � �� ` �� � � � ` � � � � �� � ����A � M HO IT HT H ` ` �� � � �� � � �� � �� � � u mh �Sn S � � � ����A � G H I Q RS M H �� � �� � � � ` � �� � �� mS � �n S � � � �� u�A � G H I J KL T H � � �� � � ��� � �� u � ` � ` �� `� m H �S Sn H � H � � �� � `

� � � # � � � � � ( � '� # � " � � � � �� 6 6 6 � 6 -

; <=>? @ABC >D ? EFC GH? ? B IJK L MC G NAD = G NO ? C PQC RB D = E GS =B D C < H AB T GH U= EA HB @

Page 8: Mass (GeV/czimmer.csufresno.edu/~yogao/conf-talk/dpf00.pdf · 2007. 8. 15. · raf Helium Reservoir Muon Chambers Magnet Yoke Superconducting Coil Barrel Shower Detector Drift Chamber

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7 E 8? 9 @ P � _LM ^ c W <= d A kA < BC VA > � Z EX u � i VA WZ BZ F =

7� = : E <= > <V > j F >A D � _LM ^ c�� � u �

7 � � � `� )� � BZ = _�� )� � � c��� �� � BZ = _e )� e � c�� !

� � )� � ��� `� )� � WF B _�� )� � � c WF B _e )� e � c

7 ? <V �A � _LM ^ c Z = >Z W < EA B � 9 " i X g BZ W Bd A gF = > EXA : j

� � � F � $ Z � � B >F C d DA E k F >A D � Z EX B iA WZ <D B E < E C BY F V EF i# C <V �

� $ ZA V BP :F = Z P <= > " C P XA i � i X � � � u �

� � _LM ^ c WF CD > d A % _ � � � c

; <=>? @ABC >D ? EFC GH? ? B IJK L MC G NAD = G NO ? C PQC RB D = E GS =B D C < H AB T GH U= EA HB @

Page 9: Mass (GeV/czimmer.csufresno.edu/~yogao/conf-talk/dpf00.pdf · 2007. 8. 15. · raf Helium Reservoir Muon Chambers Magnet Yoke Superconducting Coil Barrel Shower Detector Drift Chamber

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80

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20

15

10

20

40

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Can

did

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/ (1

MeV

/c2 )

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+IB J / K+I +I(2S)KB

+I( a ) ( b )

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G ^ I J KL M ^ � � u `� � ` � � _� ��� � u � � c � _� �� � u � � � �� u c �

G ^ I L _a` b cM ^ � ` � � � � _� ��� � � � c � _� ` � � � � � � �� � c �

; <=>? @ABC >D ? EFC GH? ? B IJK L MC G NAD = G NO ? C PQC RB D = E GS =B D C < H AB T GH U= EA HB @

Page 10: Mass (GeV/czimmer.csufresno.edu/~yogao/conf-talk/dpf00.pdf · 2007. 8. 15. · raf Helium Reservoir Muon Chambers Magnet Yoke Superconducting Coil Barrel Shower Detector Drift Chamber

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I

J/c c

W

s

s

I

s

I

u(d)u(d)

b

K+(K0)

B+(B0)

2031099-001

� ;A # C Z VA B WVA < EZ F = FY <= < > > Z EZ F = <D � � i <Z V _ � �� iF i i Z = � c

� � �� iF i i Z = � X < > d A A = i VA ]Z F C BD g BA <V WXA >Y F V Z =G >A W < g B�� F BZ � = <D X < > d A A = F d BA V ]A > �

� � F � = F � = B EV F = �D g >A W < gZ = � J KLe P J KLM F Ve M VA BF = <= WA B � �G I J KL e M k F B ED Z� A D g �A = C Z =A ��� d F > g >A W < g

; <=>? @ABC >D ? EFC GH? ? B IJK L MC G NAD = G NO ? C PQC RB D = E GS =B D C < H AB T GH U= EA HB @

Page 11: Mass (GeV/czimmer.csufresno.edu/~yogao/conf-talk/dpf00.pdf · 2007. 8. 15. · raf Helium Reservoir Muon Chambers Magnet Yoke Superconducting Coil Barrel Shower Detector Drift Chamber

� �

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5.305.285.265.24

III

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2031099-003

( a )

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( c )

( b )

E (

GeV

)2.5

MeV

/c2

Can

did

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B+ J / K+ B0 J / K0S

Beam - constrained B Mass (GeV / c2)

� & 6 � � � � � � � � " " � � �

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; <=>? @ABC >D ? EFC GH? ? B IJK L MC G NAD = G NO ? C PQC RB D = E GS =B D C < H AB T GH U= EA HB @

Page 12: Mass (GeV/czimmer.csufresno.edu/~yogao/conf-talk/dpf00.pdf · 2007. 8. 15. · raf Helium Reservoir Muon Chambers Magnet Yoke Superconducting Coil Barrel Shower Detector Drift Chamber

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ts / (2

MeV

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8

5.200 5.3005.250M(B+) (GeV/c2)

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M(B0) (GeV/c2)

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c

I

cK+r (B+ ) (10 3)

I 2 log

( /

min)

(d )30

0

10

20

321

Combined

c K0K

c

I

cK0r (B0 ) (10 3)

I 2 log

( /

min)

3350500-006

�G m _G H c I fRM m _M H c � XA VA fR Ie e IM mM nM mM n <= > fR IM HOM ^T �

� 9 EV < W E BZ � = <D � Z EX k CD EZ � > Z kA = BZ F = k < Z k C k D Z � A D Z X F F > � E

�� � ` � _au � � c BZ � = Z � W <= E BZ � = <D

� r _G m I fRM m c � _ �� � m H �h �n H �h S � �� � � �� ` � c� � �n �

� r _G H I fRM H c � _ �� � m H � � �n H � �h � �� � ` � �� � � c� � �n �

; <=>? @ABC >D ? EFC GH? ? B IJK L MC G NAD = G NO ? C PQC RB D = E GS =B D C < H AB T GH U= EA HB @

Page 13: Mass (GeV/czimmer.csufresno.edu/~yogao/conf-talk/dpf00.pdf · 2007. 8. 15. · raf Helium Reservoir Muon Chambers Magnet Yoke Superconducting Coil Barrel Shower Detector Drift Chamber

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� ! � � � ' � � �� � �� � � # � � �� " # � � � � � " �� �

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; <=>? @ABC >D ? EFC GH? ? B IJK L MC G NAD = G NO ? C PQC RB D = E GS =B D C < H AB T GH U= EA HB @

Page 14: Mass (GeV/czimmer.csufresno.edu/~yogao/conf-talk/dpf00.pdf · 2007. 8. 15. · raf Helium Reservoir Muon Chambers Magnet Yoke Superconducting Coil Barrel Shower Detector Drift Chamber

��

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Page 15: Mass (GeV/czimmer.csufresno.edu/~yogao/conf-talk/dpf00.pdf · 2007. 8. 15. · raf Helium Reservoir Muon Chambers Magnet Yoke Superconducting Coil Barrel Shower Detector Drift Chamber

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� / ��0 � �� � � 1 � & � +

� � # ( � � � ' � �" " � : � ' �� � 0 � � �- . ��

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� ��0 � �� )� ��� , & � � 6, & � 6, � 6 5 & 6 � �

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� ��0 � �� � �� � � � �� � 6, 4 & � 6, � � � 6, & 9 5 & 6 � � � &, 4 5 & 6 � �

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; <=>? @ABC >D ? EFC GH? ? B IJK L MC G NAD = G NO ? C PQC RB D = E GS =B D C < H AB T GH U= EA HB @

Page 16: Mass (GeV/czimmer.csufresno.edu/~yogao/conf-talk/dpf00.pdf · 2007. 8. 15. · raf Helium Reservoir Muon Chambers Magnet Yoke Superconducting Coil Barrel Shower Detector Drift Chamber

��

� �� ��� . � 0 � 0 � � � � �� ��� . � 0 � 0 � �

l� �l � � � r sat _au b c IG �G � vr sat _au b c IG �G � v

7 = g WF k i <V Z BF = FY G m <= >G H V < EA B >A iA = > BF = l mn K l H H <= > Z E B C = WA V E <Z = E g

7 �" � < B BC kA B l mn K l H H � � � XA = D Z B EZ = � t _au b c VA BCD E B

7 � XA F VA EZ W <D i VA > Z W EZ F = B

� � X < BA B i < WA

t _au b c _ B i Z = � � c IG G � \ � � < ]A � � � \ �� � � �� � � � \\ � � ��

�\ � � ��

� _G H c � � _G m c � �� � u � �� � ` jA � � l mon K l H H � �� �� � �� ��

� 8F CD F k d < E EV < W EZ F =

G mG n < E EV < W E � k F VA F ]A VD < i � X Z � XA V V < EA � l mon K l H H� �� � _ iF Z = ED Z� A c

� : C d EDA EZA B <= > WF V VA W EZ F = B�G Y F V kY < W EF V P t _au b c � < ]A Y C = W EZ F =

� l mon K l H H � �� � � �� ��

; <=>? @ABC >D ? EFC GH? ? B IJK L MC G NAD = G NO ? C PQC RB D = E GS =B D C < H AB T GH U= EA HB @

Page 17: Mass (GeV/czimmer.csufresno.edu/~yogao/conf-talk/dpf00.pdf · 2007. 8. 15. · raf Helium Reservoir Muon Chambers Magnet Yoke Superconducting Coil Barrel Shower Detector Drift Chamber

��

� � � � � � � � � � � # � �� � � �� BF B i Z = WF = BA V ]Z = � EV <= BZ EZ F = B�

7 :A k ZDA i EF = Z W >A W < g B � I � � m � �

� _G m I ��� H � m � c � � _G H I ��� n � m � c

l� �l � �

� _G � c

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