Measurement of the k(T) distribution of particles in jets produced in pp collisions at sqrt(s)=1.96 TeV.
We present a measurement of the transverse momentum with respect to the jet axis (k(t)) of particles in jets produced in pp collisions at sqrt(s)=1.96 TeV. Results are obtained for charged particles in a cone of 0.5 radians around the jet axis in events with dijet invariant masses between 66 and 737 GeV/c(2). The experimental data are compared to theoretical predictions obtained for fragmentation partons within the framework of resummed perturbative QCD using the modified leading log and next-to-modified leading log approximations. The comparison shows that trends in data are successfully described by the theoretical predictions, indicating that the perturbative QCD stage of jet fragmentation is dominant in shaping basic jet characteristics.
Aaltonen
T
T
Institute of Physics, Academia Sinica, Taipei, Taiwan, Republic of China.
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Akimoto
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Alvarez González
B
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Anastassov
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Annovi
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Antos
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Apollinari
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Apresyan
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Arisawa
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Artikov
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Ashmanskas
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W
Attal
A
A
Aurisano
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Azfar
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Azzurri
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Badgett
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Barbaro-Galtieri
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Barnes
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VE
Barnett
B A
BA
Bartsch
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V
Bauer
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Beauchemin
P-H
PH
Bedeschi
F
F
Beecher
D
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Behari
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Bellettini
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Bellinger
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Benjamin
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Beretvas
A
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Bhatti
A
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Binkley
M
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Bisello
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Bizjak
I
I
Blair
R E
RE
Blocker
C
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Blumenfeld
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Bocci
A
A
Bodek
A
A
Boisvert
V
V
Bolla
G
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Bortoletto
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Boudreau
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Boveia
A
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Brau
B
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Bridgeman
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Brigliadori
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Bromberg
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Brubaker
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Budagov
J
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Budd
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HS
Budd
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Burke
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Burkett
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Busetto
G
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Bussey
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Buzatu
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Byrum
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KL
Cabrera
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Calancha
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Campanelli
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Campbell
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Canelli
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Canepa
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Carlsmith
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Carosi
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Carrillo
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Carron
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Casal
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Casarsa
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Castro
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Catastini
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Cauz
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Cavaliere
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Cavalli-Sforza
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Cerri
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Cerrito
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Chang
S H
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Chen
Y C
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Chertok
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Chiarelli
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Chlachidze
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Chlebana
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Cho
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Chokheli
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Chou
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Choudalakis
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Chuang
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Chung
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Chung
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Chwalek
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Ciobanu
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Ciocci
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Clark
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Clark
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Compostella
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Convery
M E
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Conway
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Cordelli
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Cortiana
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Cox
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Cox
D J
DJ
Crescioli
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Cuenca Almenar
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Cuevas
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Culbertson
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Cully
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Dagenhart
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Datta
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Davies
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de Barbaro
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De Cecco
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Deisher
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De Lorenzo
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Dell'orso
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Deluca
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Demortier
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Deng
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Deninno
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Derwent
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di Giovanni
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Dionisi
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Di Ruzza
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Dittmann
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D'Onofrio
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Donati
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Dong
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Donini
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Dorigo
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Dube
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Elagin
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Erbacher
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Errede
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Eusebi
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Fang
H C
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Farrington
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Fedorko
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Feild
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Feindt
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Fernandez
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Ferrazza
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Field
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Flanagan
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Forrest
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Frank
M J
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Franklin
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Furic
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Gallinaro
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Galyardt
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Giakoumopoulou
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Giannetti
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Giokaris
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Giordani
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Giromini
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Giunta
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Giurgiu
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Glagolev
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Glenzinski
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Gold
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Goldschmidt
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Golossanov
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Gomez
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Gomez-Ceballos
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Goncharov
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Goshaw
A T
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Goulianos
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Gresele
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Grinstein
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Grosso-Pilcher
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Grundler
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Guimaraes da Costa
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Gunay-Unalan
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Halkiadakis
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Han
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Happacher
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Hara
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Harper
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R M
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Hartz
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Hatakeyama
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Henderson
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Hill
C S
CS
Hirschbuehl
D
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Hocker
A
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Hou
S
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Houlden
M
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Hsu
S-C
SC
Huffman
B T
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Hughes
R E
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Husemann
U
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Hussein
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Husemann
U
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Huston
J
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Incandela
J
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Introzzi
G
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Iori
M
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Ivanov
A
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James
E
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Jayatilaka
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Jeon
E J
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Jha
M K
MK
Jindariani
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Johnson
W
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Jones
M
M
Joo
K K
KK
Jun
S Y
SY
Jung
J E
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Junk
T R
TR
Kamon
T
T
Kar
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D
Karchin
P E
PE
Kato
Y
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Kephart
R
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Keung
J
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Khotilovich
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Kilminster
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Kim
D H
DH
Kim
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HS
Kim
H W
HW
Kim
J E
JE
Kim
M J
MJ
Kim
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SB
Kim
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SH
Kim
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YK
Kimura
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Kirsch
L
L
Klimenko
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Knuteson
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Ko
B R
BR
Kondo
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K
Kong
D J
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Konigsberg
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J
Korytov
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Kotwal
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AV
Kreps
M
M
Kroll
J
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Krop
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D
Krumnack
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Kruse
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M
Krutelyov
V
V
Kubo
T
T
Kuhr
T
T
Kulkarni
N P
NP
Kurata
M
M
Kwang
S
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Laasanen
A T
AT
Lami
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S
Lammel
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S
Lancaster
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Lander
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Lannon
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Lath
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Latino
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Lazzizzera
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I
Lecompte
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Lee
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SW
Leone
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Lewis
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Lin
C-S
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Linacre
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Lindgren
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Lipeles
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Lister
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Litvintsev
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DO
Liu
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Lockyer
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Loginov
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Loreti
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Lovas
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Lucchesi
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Luci
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Lujan
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Lukens
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Lungu
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Lyons
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Lys
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Lysak
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Macqueen
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Madrak
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Maeshima
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Makhoul
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Maki
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Maksimovic
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P
Malde
S
S
Malik
S
S
Manca
G
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Manousakis-Katsikakis
A
A
Margaroli
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F
Marino
C
C
Marino
C P
CP
Martin
A
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Martin
V
V
Martínez
M
M
Martínez-Ballarín
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R
Maruyama
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T
Mastrandrea
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P
Masubuchi
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T
Mathis
M
M
Mattson
M E
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Mazzanti
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P
McFarland
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McIntyre
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P
McNulty
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Mehta
A
A
Mehtala
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Menzione
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A
Merkel
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P
Mesropian
C
C
Miao
T
T
Miladinovic
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Miller
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Mills
C
C
Milnik
M
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Mitra
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Mitselmakher
G
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Miyake
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Moggi
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Moon
C S
CS
Moore
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R
Morello
M J
MJ
Morlok
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J
Movilla Fernandez
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P
Mülmenstädt
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J
Mukherjee
A
A
Muller
Th
T
Mumford
R
R
Murat
P
P
Mussini
M
M
Nachtman
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J
Nagai
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Y
Nagano
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A
Naganoma
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J
Nakamura
K
K
Nakano
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I
Napier
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A
Necula
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V
Nett
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J
Neu
C
C
Neubauer
M S
MS
Neubauer
S
S
Nielsen
J
J
Nodulman
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L
Norman
M
M
Norniella
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Nurse
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Oakes
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Oh
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Oh
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YD
Oksuzian
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Okusawa
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Orava
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Pagan Griso
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Palencia
E
E
Papadimitriou
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Papaikonomou
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A
Paramonov
A A
AA
Parks
B
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Pashapour
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Patrick
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Pauletta
G
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Paulini
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M
Paus
C
C
Peiffer
T
T
Pellett
D E
DE
Penzo
A
A
Phillips
T J
TJ
Piacentino
G
G
Pianori
E
E
Pinera
L
L
Pitts
K
K
Plager
C
C
Pondrom
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L
Poukhov
O
O
Pounder
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Prakoshyn
F
F
Pronko
A
A
Proudfoot
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J
Ptohos
F
F
Pueschel
E
E
Punzi
G
G
Pursley
J
J
Rademacker
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J
Rahaman
A
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Ramakrishnan
V
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Ranjan
N
N
Redondo
I
I
Renton
P
P
Renz
M
M
Rescigno
M
M
Richter
S
S
Rimondi
F
F
Ristori
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L
Robson
A
A
Rodrigo
T
T
Rodriguez
T
T
Rogers
E
E
Rolli
S
S
Roser
R
R
Rossi
M
M
Rossin
R
R
Roy
P
P
Ruiz
A
A
Russ
J
J
Rusu
V
V
Safonov
A
A
Sakumoto
W K
WK
Saltó
O
O
Santi
L
L
Sarkar
S
S
Sartori
L
L
Sato
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Savoy-Navarro
A
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Schlabach
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Schmidt
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A
Schmidt
E E
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Schmidt
M A
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Schmidt
M P
MP
Schmitt
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Schwarz
T
T
Scodellaro
L
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Scribano
A
A
Scuri
F
F
Sedov
A
A
Seidel
S
S
Seiya
Y
Y
Semenov
A
A
Sexton-Kennedy
L
L
Sforza
F
F
Sfyrla
A
A
Shalhout
S Z
SZ
Shears
T
T
Shepard
P F
PF
Shimojima
M
M
Shiraishi
S
S
Shochet
M
M
Shon
Y
Y
Shreyber
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I
Sidoti
A
A
Sinervo
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P
Sisakyan
A
A
Slaughter
A J
AJ
Slaunwhite
J
J
Sliwa
K
K
Smith
J R
JR
Snider
F D
FD
Snihur
R
R
Soha
A
A
Somalwar
S
S
Sorin
V
V
Spalding
J
J
Spreitzer
T
T
Squillacioti
P
P
Stanitzki
M
M
St Denis
R
R
Stelzer
B
B
Stelzer-Chilton
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O
Stentz
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D
Strologas
J
J
Strycker
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GL
Stuart
D
D
Suh
J S
JS
Sukhanov
A
A
Suslov
I
I
Suzuki
T
T
Taffard
A
A
Takashima
R
R
Takeuchi
Y
Y
Tanaka
R
R
Tecchio
M
M
Teng
P K
PK
Terashi
K
K
Thom
J
J
Thompson
A S
AS
Thompson
G A
GA
Thomson
E
E
Tipton
P
P
Ttito-Guzmán
P
P
Tkaczyk
S
S
Toback
D
D
Tokar
S
S
Tollefson
K
K
Tomura
T
T
Tonelli
D
D
Torre
S
S
Torretta
D
D
Totaro
P
P
Tourneur
S
S
Trovato
M
M
Tsai
S-Y
SY
Tu
Y
Y
Turini
N
N
Ukegawa
F
F
Vallecorsa
S
S
van Remortel
N
N
Varganov
A
A
Vataga
E
E
Vázquez
F
F
Velev
G
G
Vellidis
C
C
Veszpremi
V
V
Vidal
M
M
Vidal
R
R
Vila
I
I
Vilar
R
R
Vine
T
T
Vogel
M
M
Volobouev
I
I
Volpi
G
G
Wagner
P
P
Wagner
R G
RG
Wagner
R L
RL
Wagner
W
W
Wagner-Kuhr
J
J
Wakisaka
T
T
Wallny
R
R
Wang
S M
SM
Warburton
A
A
Waters
D
D
Weinberger
M
M
Weinelt
J
J
Wester
W C
WC
Whitehouse
B
B
Whiteson
D
D
Wicklund
A B
AB
Wicklund
E
E
Wilbur
S
S
Williams
G
G
Williams
H H
HH
Wilson
P
P
Winer
B L
BL
Wittich
P
P
Wolbers
S
S
Wolfe
C
C
Wright
T
T
Wu
X
X
Würthwein
F
F
Wynne
S M
SM
Xie
S
S
Yagil
A
A
Yamamoto
K
K
Yamaoka
J
J
Yang
U K
UK
Yang
Y C
YC
Yao
W M
WM
Yeh
G P
GP
Yoh
J
J
Yorita
K
K
Yoshida
T
T
Yu
G B
GB
Yu
I
I
Yu
S S
SS
Yun
J C
JC
Zanello
L
L
Zanetti
A
A
Zhang
X
X
Zheng
Y
Y
Zucchelli
S
S