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Atmospheric neutrino challenges
Nuclear Physics B (Proc. Suppl.) 145 (2005) 69–74 www.elsevierphysics.com
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T. Stanev / Nuclear Physics B (Proc. Suppl.) 145 (2005) 69–74
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T. Stanev / Nuclear Physics B (Proc. Suppl.) 145 (2005) 69–74
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T. Stanev / Nuclear Physics B (Proc. Suppl.) 145 (2005) 69–74 x distribution of /-, p-air at 20 GeV
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TARGET FLUKA Eichten et al. Abbott et al. Allaby et al.
1
Flux ratio
xlab dN/dxlab
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T. Stanev / Nuclear Physics B (Proc. Suppl.) 145 (2005) 69–74
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0920-5632/$ – see front matter © 2005 Elsevier B.V. All rights reserved. doi:10.1016/j.nuclphysbps.2005.03.038
& , ! * & *8 , 9& &' ' & ': ' ' ! * * & ( ' '8 ) * ( ) '& #/ ) ' , * & ; * '& 7 & ' ' '& ' < & * , ' * %& &5 '( ' ,% '& ) '& ) ' ' '& & * ( ) '' ( ) ) % * '* 8 & * ' ' ( * * '& * * '* =& ' * '& ( ' ) ' ) '' ) ( * ) # 2 3 9' ) .# 2 3: 6 ) * '* 6 ) & & ( '& ,%> 5 * & ' '& ( ' ,% ' '& 6
70
T. Stanev / Nuclear Physics B (Proc. Suppl.) 145 (2005) 69–74
% ) #*+ ) , ) - . /0 & 1 1 2 & 3 & .4 /0 &
5
F(3D) / F(1D)
4
_ = 30 degrees
3
h = 10 km 20 km 30 km 40 km 50 km
1 " . 4) 70)
, ( 6
(
8 & 5 & 9 2 '( 2 : Æ & , ( 6
Neutrino energy, GeV
! " # $ % & '(
10
> 1.30 1.1 - 1.3
1
1.0 - 1.1 0.9 - 1.0 0.8 - 0.9
0.1 -1
-0.5
0
0.5
1
cos e 2
5 6 /, ; 9
1 0 -1
-0.5
0
0.5
1
cos e
5 6 /, / Æ
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T. Stanev / Nuclear Physics B (Proc. Suppl.) 145 (2005) 69–74
! ! " # $ ! %Æ ! & ' ( ') & ! $ * !
+
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72
T. Stanev / Nuclear Physics B (Proc. Suppl.) 145 (2005) 69–74
lines: new fits points: AGLS
E k2.5 F(Ek ), all nucleons
8000
6000
4000
2000
% % # % # ;!< & =!< % #7 # % # % # #7 * & & 8 &
% & # #7 ) ,#
* # # ( - 23 4* % 9 # >? @ .A 6 &
0
1
10
100
1000
10000
100
kinetic energy Ek , GeV
! " #$ % & # !' (! "
# % ) %* & % # %
% # & ) &* +, % " ## * -./01 23!4*
% 0 5 23(4 #
% & 6 7 # 8 Æ 6 & % 9 % #$ +, % 7" 7 +, %
& (!73!' % & * % % # * %
% 1 & # # 9 ,# +, # ,# * # - 2(:4
+, (! "
% # #
+, # % ##
% # & % #7 # 7 * # # # %
solid: DPMJET 3 long dash: TARGET 2.1 short dash: FLUKA 98 points: Fritiof 1.5
x/m dm/dx
10-1
0
0.2
0.4
0.6
0.8
1
xLab= E/E0
? # 7 # 3 " 7 - 233*34 - 23 4
.A , >? @ # % # * 3(* & 9 # (;* % @ # ) %
3 " 7 & 3( .A # % ,#
9 % % # ) " # % 3(
# # * #& # 7
% 7B!3
% # (!! " # 9 # # AC & # D E
73
T. Stanev / Nuclear Physics B (Proc. Suppl.) 145 (2005) 69–74 x distribution of /-, p-air at 20 GeV
1.1
1
TARGET FLUKA Eichten et al. Abbott et al. Allaby et al.
1
Flux ratio
xlab dN/dxlab
0.8
H/B F/B
1.05
0.6
0.4
0.95 0.9 0.85 0.8 0.75
0.2
0.7 10-1
100
103
102
101
Ei, GeV
0
0.2
0.6
0.4
0.8
1
xlab
! " · # " $ "" %& ! ' ! ()) " " * ! ""
+ " " " " %& , " ! - . /" " " , ! " ' - 0 0 - 1 0 .- 0 .. ! ! " (2 " ) + "" " " ()2 /" 3 " , !"' 4 ! ( 2 (2 ! ( () " ! 2 "" /" ! 5 , " " %& " 4 6 " " " 7 ( ( " " " 4 !' " " ' " "" "" %& 8 () " 9 ( "
6 %& ! ( - . 7 " %& ( 7 2 ' " "" /" :8;+ " < ! ( " , " )2 " " ())) = " , , " " " " " %& () / " " , ' ! ! > " " ! " " %& :8;+ 7 + /" %& !
" & ! ' ())) /" ! " AGLS FLUKA
6m2 = 2.5 10-3 eV2
\µ, cm-2s-1sr-1
0
10
-13
-1
-0.8
-0.4
-0.6
-0.2
0
cos e
> + !
; * " " " < %& " -?¾ @ ))) ¾ . " - " " "
74
T. Stanev / Nuclear Physics B (Proc. Suppl.) 145 (2005) 69–74
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