A measurement of the direct photon production cross section at the CERN pp collider

J. Alitti,G. Ambrosini,R. Ansari,Dario Autiero,P. Bareyre,I.A. Bertram,G. Blaylock,P. Bonamy,M. Bonesini,K. Borer,M. Bourliaud,Damir Buskulic,G. Carboni,D. Cavalli,V. Cavasinni,P. Cenci,J.C. Chollet,C. Conta,G. Costa,F. Costantini,Luca Cozzi,A. Cravero,M. Curatolo,A. Dell'Acqua,T Delprete,R.S. DeWolf,L. DiLella,Gary F. Egan,K. Einsweiler,B. Esposito,L. Fayard,Andrea Federspiel,Roberto Ferrari,M. Fraternali,Daniel Froidevaux,G. Fumagalli,J.M. Gaillard,F. Gianotti,O. Gildemeister,Claus Gössling,V.G. Goggi,S. Grünendahl,K. Hara,S. Hellman,J. Hřivnáč,H. Hufnagel,E. Hugentobler,K. Hultqvist,E. Iacopini,J. Incandela,K. Jacobs,P. Jenni,E.-E. Kluge,S. Lami,P. Lariccia,M. Lefebvre,L. Linssen,M. Livan,P. Lubrano,C. Magneville,L. Mandelli,L. Mapelli,M. Mazzanti,K. Meier,B. Merkel,J. Meyer,M. Moniez,R. Moning,M. Morganti,L. Müller,D.J. Munday,F. Nessi-Tedaldi,C. Onions,T. Pal,M A Parker,G. Parrour,F. Pastore,E. Pennacchio,J.M. Pentney,M. Pepe,L. Perini,C. Petridou,P. Petroff,H. Plothow-Besch,G. Polesello,A. Poppleton,K. Pretzl,M. Primavera,M. Punturo,J.P. Repellin,A. Rimoldi,M. Sacchi,P. Scampoli,J. Schacher,V. Simak,S.L. Singh,V. Sondermann,S. Stapnes,A. V. Stirling,C. Talamonti,F. Tondini,S.N. Tovey,E. Tsesmelis,G. Unals,M. Valdata-Nappi,Valerio Vercesi,Anthony Weidberg,P.S. Wells,T O White,D.R. Wood,S.A. Wotton,Henri Zaccone,A. Zylberstejn

A measurement of the direct photon production cross section at the CERN pp collider

1991

J. Alitti
G. Ambrosini
R. Ansari
Dario Autiero
P. Bareyre
I.A. Bertram
G. Blaylock
P. Bonamy
M. Bonesini
K. Borer
M. Bourliaud
Damir Buskulic
G. Carboni
D. Cavalli
V. Cavasinni
P. Cenci
J.C. Chollet
C. Conta
G. Costa
F. Costantini
Luca Cozzi
A. Cravero
M. Curatolo
A. Dell'Acqua
T Delprete
R.S. DeWolf
L. DiLella
Gary F. Egan
K. Einsweiler
B. Esposito
L. Fayard
Andrea Federspiel
Roberto Ferrari
M. Fraternali
Daniel Froidevaux
G. Fumagalli
J.M. Gaillard
F. Gianotti
O. Gildemeister
Claus Gössling
V.G. Goggi
S. Grünendahl
K. Hara
S. Hellman
J. Hřivnáč
H. Hufnagel
E. Hugentobler
K. Hultqvist
E. Iacopini
J. Incandela
K. Jacobs
P. Jenni
E.-E. Kluge
S. Lami
P. Lariccia
M. Lefebvre
L. Linssen
M. Livan
P. Lubrano
C. Magneville
L. Mandelli
L. Mapelli
M. Mazzanti
K. Meier
B. Merkel
J. Meyer
M. Moniez
R. Moning
M. Morganti
L. Müller
D.J. Munday
F. Nessi-Tedaldi
C. Onions
T. Pal
M A Parker
G. Parrour
F. Pastore
E. Pennacchio
J.M. Pentney
M. Pepe
L. Perini
C. Petridou
P. Petroff
H. Plothow-Besch
G. Polesello
A. Poppleton
K. Pretzl
M. Primavera
M. Punturo
J.P. Repellin
A. Rimoldi
M. Sacchi
P. Scampoli
J. Schacher
V. Simak
S.L. Singh
V. Sondermann
S. Stapnes
A. V. Stirling
C. Talamonti
F. Tondini
S.N. Tovey
E. Tsesmelis
G. Unals
M. Valdata-Nappi
Valerio Vercesi
Anthony Weidberg
P.S. Wells
T O White
D.R. Wood
S.A. Wotton
Henri Zaccone
A. Zylberstejn

Abstract A measurement of the inclusive cross-section for production of direct photons in pp collisions at a centre of mass energy of 630 GeV is presented as a function of the photon transverse momentum. The data correspond to a total integrated luminosity of 7.4 pb −1 . The results support predictions from QCD theory.

Keywords:

Quantum electrodynamics
Collider
Large Hadron Collider
Quantum chromodynamics
Center of mass
Nuclear physics
Particle physics
Photon
Luminosity
Physics
Momentum
transverse momentum

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