Measurement of direct photon production in p + p collisions at s**(1/2) = 200-GeV - INSPIRE

DataBETA

Measurement of direct photon production in p + p collisions at s**(1/2) = 200-GeV

PHENIX

Collaboration

Sep, 2006

6 pages

Published in:

Phys.Rev.Lett. 98 (2007) 012002

e-Print:

hep-ex/0609031 [hep-ex]

DOI:

10.1103/PhysRevLett.98.012002

Experiments:

BNL-RHIC-PHENIX

View in:

reference search221 citations

Citations per year

Abstract:

Cross sections for mid-rapidity production of direct photons in p+p collisions at the Relativistic Heavy Ion Collider (RHIC) are reported for 3 < p_T < 16 GeV/c. Next-to-leading order (NLO) perturbative QCD (pQCD) describes the data well for p_T > 5 GeV/c, where the uncertainties of the measurement and theory are comparable. We also report on the effect of requiring the photons to be isolated from parton jet energy. The observed fraction of isolated photons is well described by pQCD for p_T > 7 GeV/c.

Note:

330 authors, 6 pages text, 3 figures, one table. Submitted to Phys. Rev. Lett. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html

25.75.Dw
13.85.Qk
p p: colliding beams
p p: inclusive reaction
photon: direct production
quark gluon: Compton scattering
quark antiquark: annihilation
background
differential cross section: transverse momentum
quantum chromodynamics: perturbation theory

References(23)

Figures(0)

QUANTUM CHROMODYNAMIC PREDICTIONS FOR LONGITUDINAL SPIN SPIN ASYMMETRY IN INCLUSIVE DIRECT PHOTON PRODUCTION AT LARGE P(T)

- Phys.Rev.D 26 (1982) 3284-3286,
- Phys. Rev. D26 ( 1982) 3284-3286
•
DOI:
- 10.1103/PhysRevD.26.3284

Prompt Photon Production With a Polarized Deuteron Target

Edmond L. Berger
(
- Argonne
)
,
Jian-wei Qiu
(
- Argonne
)

- Phys.Rev.D 40 (1989) 3128
•
DOI:
- 10.1103/PhysRevD.40.3128

The origin of the highest energy cosmic rays

P.L. Biermann
(
- Bonn, Max Planck Inst., Radioastron.
)

- J.Phys.G 23 (1997) 1-27
•
DOI:
- 10.1088/0954-3899/23/1/002

A Critical phenomenological study of inclusive photon production in hadronic collisions

P. Aurenche
(
- Annecy, LAPTH
)
,
M. Fontannaz
(
- Orsay, LPT
)
,
J.Ph. Guillet
(
- Annecy, LAPTH
)
,
Bernd A. Kniehl
(
- Munich, Max Planck Inst.
)
,
E. Pilon
(
- Annecy, LAPTH
)

et al.

- Eur.Phys.J.C 9 (1999) 107-119
•
e-Print:
- hep-ph/9811382
•
DOI:
- 10.1007/s100529900018

Formation of dense partonic matter in relativistic nucleus-nucleus collisions at RHIC: Experimental evaluation by the PHENIX collaboration

PHENIX

Collaboration

•

K. Adcox
(
- Vanderbilt U.
)

et al.

- Nucl.Phys.A 757 (2005) 184-283
•
e-Print:
- nucl-ex/0410003
•
DOI:
- 10.1016/j.nuclphysa.2005.03.086

Mid-rapidity direct-photon production in $p^+ p$ collisions at $\sqrt{s}$ = 200-GeV

PHENIX

Collaboration

•

S.S. Adler
(
- Brookhaven
)

et al.

- Phys.Rev.D 71 (2005) 071102
•
e-Print:
- hep-ex/0502006
•
DOI:
- 10.1103/PhysRevD.71.071102

PHENIX detector overview

PHENIX

Collaboration

•

K. Adcox

et al.

- Nucl.Instrum.Meth.A 499 (2003) 469-479
•
DOI:
- 10.1016/S0168-9002(02)01950-2

Mid-rapidity neutral pion production in proton proton collisions at $\sqrt{s}$ = 200-GeV

PHENIX

Collaboration

•

S.S. Adler
(
- Brookhaven
)

et al.

- Phys.Rev.Lett. 91 (2003) 241803
•
e-Print:
- hep-ex/0304038
•
DOI:
- 10.1103/PhysRevLett.91.241803

Common suppression pattern of eta and pi0 mesons at high transverse momentum in Au+Au collisions at S(NN)**(1/2) = 200-GeV

PHENIX

Collaboration

•

S.S. Adler
(
- Brookhaven
)

et al.

- Phys.Rev.Lett. 96 (2006) 202301
•
e-Print:
- nucl-ex/0601037
•
DOI:
- 10.1103/PhysRevLett.96.202301

First measurement of the omega-meson production at RHIC by PHENIX

PHENIX

Collaboration

•

V. Ryabov
(
- St. Petersburg, INP
)

for the collaboration.

- Nucl.Phys.A 774 (2006) 735-738
•
e-Print:
- hep-ex/0510017
•
DOI:
- 10.1016/j.nuclphysa.2006.06.126

Measurement of single electrons and implications for charm production in Au+Au collisions at s**(1/2)(NN) = 130-GeV

PHENIX

Collaboration

•

K. Adcox
(
- Vanderbilt U.
)

et al.

- Phys.Rev.Lett. 88 (2002) 192303
•
e-Print:
- nucl-ex/0202002
•
DOI:
- 10.1103/PhysRevLett.88.192303

Centrality dependence of direct photon production in s(NN)**(1/ 2) = 200-GeV Au + Au collisions

PHENIX

Collaboration

•

S.S. Adler
(
- Brookhaven
)

et al.

- Phys.Rev.Lett. 94 (2005) 232301
•
e-Print:
- nucl-ex/0503003
•
DOI:
- 10.1103/PhysRevLett.94.232301

Polarized and unpolarized prompt photon production beyond the leading order

L.E. Gordon
(
- Dortmund U.
)
,
W. Vogelsang
(
- Dortmund U.
)

- Phys.Rev.D 48 (1993) 3136-3159
•
DOI:
- 10.1103/PhysRevD.48.3136

Polarized and unpolarized isolated prompt photon production beyond the leading order

L.E. Gordon
(
- Dortmund U.
)
,
W. Vogelsang
(
- Dortmund U.
)

- Phys.Rev.D 50 (1994) 1901-1916
•
DOI:
- 10.1103/PhysRevD.50.1901

Prompt Photon Production at Large p(T) in QCD Beyond the Leading Order

- Phys.Lett.B 140 (1984) 87-92
•
DOI:
- 10.1016/0370-2693(84)91053-0

Prompt Photon Production at Large p(T) Scheme Invariant QCD Predictions and Comparison with Experiment

- Nucl.Phys.B 297 (1988) 661-696
•
DOI:
- 10.1016/0550-3213(88)90553-6

A Next-to-leading Logarithm Calculation of Direct Photon Production

- Phys.Rev.D 42 (1990) 61-71
•
DOI:
- 10.1103/PhysRevD.42.61

A Calculation of the Direct Photon Plus Jet Cross-Section in the Next-To-Leading Logarithm Approximation

- Phys.Lett.B 234 (1990) 127-131
•
DOI:
- 10.1016/0370-2693(90)92015-B

New generation of parton distributions with uncertainties from global QCD analysis

J. Pumplin
(
- Michigan State U.
)
,
D.R. Stump
(
- Michigan State U.
)
,
J. Huston
(
- Michigan State U.
)
,
H.L. Lai
(
- Michigan State U.
)
,
Pavel M. Nadolsky
(
- Michigan State U.
)

et al.

- JHEP 07 (2002) 012
•
e-Print:
- hep-ph/0201195
•
DOI:
- 10.1088/1126-6708/2002/07/012

Quark and gluon fragmentation functions into photons

- Eur.Phys.J. 2 (1998) 3, 529-537,
- Eur.Phys.J.C 2 (1998) 529-537
•
e-Print:
- hep-ph/9704447
•
DOI:
- 10.1007/s100529800708

Pythia 6.3 physics and manual

e-Print:
- hep-ph/0308153

Elementary amplitudes in the multiple diffraction theory of proton proton and anti-proton proton elastic scattering

Marcio Jose Menon
(
- Pisa U. and
- INFN, Pisa
)

- Phys.Rev.D 48 (1993) 2007-2018,
- Phys.Rev.D 51 (1995) 1427 (erratum)
•
DOI:
- 10.1103/PhysRevD.48.2007

A New critical study of photon production in hadronic collisions

Patrick Aurenche
(
- Annecy, LAPTH
)
,
Michel Fontannaz
(
- Orsay, LPT
)
,
Jean-Philippe Guillet
(
- Annecy, LAPTH
)
,
Eric Pilon
(
- Annecy, LAPTH
)
,
Monique Werlen
(
- Annecy, LAPTH
)

- Phys.Rev.D 73 (2006) 094007
•
e-Print:
- hep-ph/0602133
•
DOI:
- 10.1103/PhysRevD.73.094007