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B decays to baryonic final states and Ωc0 at Belle
Proceedings of ICHEP 2002, pp. 641–644 S. Bentvelsen, P. de Jong, J. Koch and E. Laenen (Editors)
ELSEVIER
31st INTERNATIONAL CONFERENCE ON HIGH ENERGY PHYSICS AMSTERDAM
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c 2003 Published by Elsevier Science B.V. doi:10.1016/S0920-5632(02)02152-7
40
(a)
−
60
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B0→Λ+cpπ+π-
20 0 10
(c)
(e)
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B0→Λ+cp
2
0 15
−
_ -
(d) B →Λ+cpπ
10 5 0 3
−
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(f) B0→Λ+cp
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(b) B0→Λ+cpπ+π-
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1 5.22
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5.28
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(b) B →Σc pπ
6
(a)
0 20
(b)
10 0 20
(a)
4
10
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(c) B →Σc p
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2.5
2.55
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2.65
2.7
2.75
2.8
2.85
2.9
-0.1
0
∆E (GeV)
0.1
0.2
0 -0.2
-0.1
0
0.1
0.2
∆E (GeV)
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643
2
Events / (5 MeV/c )
dN / dMpp_ (Events / (GeV/c2))
B decays to baryonic final states and W 0c at Belle
Events / 10 MeV
120
30
100
(b) 20
10
5
80 0
3
3.05
3.1
3.15
60 40 20 0 2
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0.2
2
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∆E (GeV)
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(GeV/c )
1 :; , .
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0
3
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(a) 15
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5
0 -0.2
16
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dN / dMpΛ_ (Events / (GeV/c2))
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ELSEVIER
31st INTERNATIONAL CONFERENCE ON HIGH ENERGY PHYSICS AMSTERDAM
" !
! "# $ %%& " ' " " "" " ( ) " (( ( * * ¼
··
´ µ¼
·
·
¼
¼
¼
) , + , + , + ( %/&# , " # 0 $ 1 " # $ 2 3+ , +4 5 3' ' /43 /678 94 3 , + 4 5 + 3:; ': <74 3 , + 4 5 3 7 '74 #
c 2003 Published by Elsevier Science B.V. doi:10.1016/S0920-5632(02)02152-7
40
(a)
−
60
_
B0→Λ+cpπ+π-
20 0 10
(c)
(e)
−
_
B0→Λ+cp
2
0 15
−
_ -
(d) B →Λ+cpπ
10 5 0 3
−
_
(f) B0→Λ+cp
2
1 0 5.2
_
20
_ − B →Λ+cpπ
5
0 3
−
(b) B0→Λ+cpπ+π-
40
Events/0.005GeV
! " # $ %&
%'& $$ ( # ) $ $ " # * " $ # + ¼ ,
- # . /'- # " $
$ #
) $ $ $ $ 31 / => ?'; =>4
@ 3 0 $ '4# A , @$ " + B 3'
Events/0.001GeV/c2
1 5.22
5.24
5.26 2
Mbc, GeV/c
5.28
5.3
0 -0.2
-0.15
-0.1
-0.05
0
0.05
0.1
0.15
0.2
∆E, GeV
0 $ # 334 34 344 1 334 34 344 <" /" '" "
#
¾ 642
R. Chistov
20
Events/(0.01 GeV)
(a) B
10
++ _ →Σc pπ
Events / 0.005 (GeV/c2)
5 0
−0
0_ +
(b) B →Σc pπ
6
(a)
0 20
(b)
10 0 20
(a)
4
10
Events/(0.01 GeV)
−0
2 0
(b) 2
0
(c)
(c) 5
10
4
0 -0.2
2 0
0_
−
(c) B →Σc p
4 2 0 2.4
2.45
2.5
2.55
2.6
2.65
2.7
2.75
2.8
2.85
2.9
-0.1
0
∆E (GeV)
0.1
0.2
0 -0.2
-0.1
0
0.1
0.2
∆E (GeV)
! £
M(Λ+cπ) (GeV/c2)
¼
£ £ ! " # " £ $$% &$' &$( $& $& &$ $& ! # " "
! " ¼
! " ) ! # )% '( # ! # !
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&' $& +', " ' !
* " -. / " ! 0 $& 12&3 0 $& 12&3 " ! +(, ! ( ! # )% '$ # ! # ! * '( &) $& ! 4 " 4 0 " * " -. 5 $% $& 12&3
)$ $& 12&3
6 " 7 8 " - *
643
2
Events / (5 MeV/c )
dN / dMpp_ (Events / (GeV/c2))
B decays to baryonic final states and W 0c at Belle
Events / 10 MeV
120
30
100
(b) 20
10
5
80 0
3
3.05
3.1
3.15
60 40 20 0 2
2.5
10
0.1
0.2
2
4
4.5
!"#$ ¼ # % & % ' % % (# ((# & & % )*+ , - . )%+
20
2
0.0
∆E (GeV)
Events / ( 2.5 MeV/c )
-0.1
3.5
(GeV/c )
1 :; , .
< , , <#
Events / 10 MeV
0
3
Mpp_
(a) 15
10
5
0 -0.2
16
(b)
12 8 4
-0.1
0.0
∆E (GeV)
0.1
0
0.2
5.22
2
5.28
Mbc (GeV/c )
4 #$ #$ (
/
/ - . / . - - 0 . .
/ # / / # - / # 1 & 1 %* & % * , .
/
/ /
/
. / / . / # 1 2 3 / * 4 4 &4 * % 56 7 / - !"87 / # 9 &4 4 & 4 % 56 )%+
. / . . !"87)2+ = - , / . , :. 0 - / ., / # 1' - < / , / , -, / / # / / # - <, /
644
dN / dMpΛ_ (Events / (GeV/c2))
R. Chistov
60 50 40 30 20 10 0
-10
2
2.5
3
MpΛ_
3.5
4
2
4.5
5
(GeV/c )
¼
$6& ($ 7 * 4 5 &%&$ (6' $&" $& ($ * 4 ) ((" $(% $(6 ($ * (&$ $&( ($ * ) 8 ' $% $' ($ ($ 3 8 '%6 ) 3 * . ! ) ) +,-. 7 * * ! ! ! ! ! ! $"' $&" $(
14
12 10 8 6 4 2 0 2.55
2.6
!
2.65
2.7
2.75
2.8
2.85
" ! # ! $%
&$ % & ! ! ! ! $"' $&" $( ) ** ) +,-. */"0 * * ! ! * *)/10
2 3 ) * 4 5 &%% * ) &'" $(
( 9 : ) 3 ; < = 66 &$$& $($$$( & : >* >3 ** +** 3 ; < , 3 (%("$& &$$& % 9 >3 ** +** 3 ; < , 3 ("("$' &$$& 6 9 >3 ** +** 3 -,,- +.C $&' 9 >3 ** +** 3 ; < = 3 $1(($' &$$& " < > +,-. +** 3 +,CA $&D("&3 +,-. $& % 1 9 >3 ** +** 3 -,,- +.C $&%'