Isolated photon cross section in p&pmacr; collisions at radicals = 1. 8 TeV
We report a new measurement of the cross section for the production of isolated photons with transverse energies ( E(gamma)(T)) above 10 GeV and pseudorapidities |eta|<2.5 in p&pmacr; collisions at sqrt[s] = 1.8 TeV. The results are based on a data sample of 107.6 pb(-1) recorded during 1992-1995 with the D0 detector at the Fermilab Tevatron collider. The background, predominantly from jets which fragment to neutral mesons, was estimated using the longitudinal shower shape of photon candidates in the calorimeter. The measured cross section is in good agreement with the next-to-leading order QCD calculation for E(gamma)(T) greater, similar36 GeV.
Snyder
S
New York University, New York, New York 10003, USA.
Solomon
J
Song
XF
Sorin
V
Sosebee
M
Sotnikova
N
Souza
M
Stanton
NR
Steinbruck
G
Stephens
RW
Stevenson
ML
Stichelbaut
F
Stoker
D
Stolin
V
Stoyanova
DA
Strauss
M
Streets
K
Strovink
M
Stutte
L
Sznajder
A
Tarazi
J
Tartaglia
M
Thomas
TL
Thompson
J
Toback
D
Trippe
TG