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Observation of hard processes in collisions of two quasi-real photons

Authors :
Walter Dr. Hillen
G. Peise
A. Shapira
J. McCardle
D. Lüke
H. Kück
K. Gather
D. Trines
W. Schütte
G. Yekutieli
Fernando Barreiro
G. E. Forden
Giora Mikenberg
R. Beuselinck
W. Wallraff
Philip Bull
H. U. Martyn
D.W. Schmitz
Hermann Kolanoski
V. Mertens
Gl Salmon
J. K. Sedgbeer
R.C.E. Devenish
M. Wollstadt
W. G. Jones
P. J. Dornan
J. Harvey
M. Dittmar
D. Strom
D. Pandoulas
M. Rushton
K. Lübelsmeyer
R. Fohrmann
G. Rudolph
M. Mermikides
D. Revel
T. Kracht
P. L. Woodworth
R. Mir
C. Youngman
B. Löhr
Y. Eisenberg
H. Siebke
A. Ladage
P. Grossmann
W. Braunschweig
T. R. Wyatt
P. Joos
J. Rimkus
B. Foster
C. M. Hawkes
Norbert Wermes
P. Leu
E. Wicklund
H. Kowalsi
Jakita O. Thomas
H. Venkataramania
D. H. Saxon
C. Jenkins
Rj Cashmore
W. Koch
W. A. T. Wan Abdullah
M. G. Bowler
J. Pyrlik
M. Althoff
D. Notz
E. Hilger
D. M. Binnie
U. Kötz
L. Köpke
P. E. L. Clarke
M. Cherney
Ehud Duchovni
G. Poelz
A. Jocksch
K. W. Bell
P. Mättig
D. A. Garbutt
H. G. Sander
R. J. Nowak
H. Hartmann
J. Proudfoot
Ch. Xiao
T. Barklow
Alan Campbell
M. Holder
H. Hultschig
B. H. Wiik
John Hart
Sau Lan Wu
E.E. Ronat
G. Knop
P. Rosskamp
R. Wedemeyer
F. J. Kirschfink
H. M. Fischer
A. Caldwell
Stephen Lloyd
Georg Zobernig
D. K. Hasell
Joseph Izen
D. R. Quarrie
Gy. Wolf
B. Neumann
U. Karshon
E. Lohrmann
Tegid Jones
Hl Krasemann
Source :
Physics Letters B. 138:219-224
Publication Year :
1984
Publisher :
Elsevier BV, 1984.

Abstract

Hard processes in photon-photon collisions are studied using high statistics data without requiring an electron tag. A high yield of hadrons with p t in the range 1.5–3.0 GeV/ c is observed. This yield exceeds the expectation of the Born term by a factor of four.

Details

ISSN :
03702693
Volume :
138
Database :
OpenAIRE
Journal :
Physics Letters B
Accession number :
edsair.doi...........27dd368e1fc44cd1b785aa280067b8bf
Full Text :
https://doi.org/10.1016/0370-2693(84)91904-x