Direct photon production by polarized beam and target: Complete next-to-leading order corrections - INSPIRE

DataBETA

Direct photon production by polarized beam and target: Complete next-to-leading order corrections

A.P. Contogouris
(
- McGill U. and
- Athens U.
)
,
B. Kamal
(
- McGill U.
)
,
Z. Merebashvili
(
- McGill U.
)
,
F.V. Tkachov
(
- McGill U.
)

Jun 22, 1993

28 pages

Published in:

Phys.Rev.D 48 (1993) 4092,
Phys.Rev.D 54 (1996) 7081 (erratum)

DOI:

Report number:

MCGILL-93-17

View in:

reference search50 citations

Citations per year

Abstract: (APS)

For large-pT direct photon production by a longitudinally polarized beam and target complete next-to-leading-order corrections [higher-order corrections (HOC's)] are determined. For these, one loop corrections to the basic subprocesses g→q→→γq and q→q¯→→γg, as well as the contributions of g→g→→γqq¯ and q→q→→γqq, are calculated. For p→p→→γ+X, K factors greater than unity and polarized cross sections and asymmetries well measurable are obtained. Certain differences in the regularization procedures and the question of dominance of HOC's by soft, collinear, and virtual gluons are also discussed.

13.88.+e
12.38.Bx
13.85.Qk
p p: interaction
interaction: p p
hard scattering
p: polarized beam
polarized beam: p
p: polarized target
polarized target: p

References(25)

Figures(0)

Radiative Corrections to the Helicity Asymmetries for the Drell-Yan Process in QCD

P. Ratcliffe
(
- SISSA, Trieste
)

- Nucl.Phys.B 223 (1983) 45-60
•
DOI:
- 10.1016/0550-3213(83)90091-3

Axial Anomaly and Sum Rule for Photon Spin Structure Function

- Phys.Lett.B 240 (1990) 200,
- In *Protvino 1989, Spin-89* 79-83
•
DOI:
- 10.1016/0370-2693(90)90433-7

The Role of the Axial Anomaly in Measuring Spin Dependent Parton Distributions

- Phys.Lett.B 214 (1988) 229-236
•
DOI:
- 10.1016/0370-2693(88)91474-8

The Anomalous Gluon Contribution to Polarized Leptoproduction

Guido Altarelli
(
- CERN
)
,
Graham G. Ross
(
- CERN
)

- Phys.Lett.B 212 (1988) 391-396
•
DOI:
- 10.1016/0370-2693(88)91335-4

Probing Gluon Polarization in Hadronic Direct Photon Production

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

- Phys.Rev.D 40 (1989) 778
•
DOI:
- 10.1103/PhysRevD.40.778

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

Spin Dependent Gluon Densities From Large $p_T$ Photon and Dimuon Production

- Z.Phys.C 42 (1989) 493,
- Z.Phys.C 44 (1989) 356 (erratum)
•
DOI:
- 10.1007/BF01548456

Spin Asymmetry in Proton Proton Collisions as a Probe of Sea and Gluon Polarization in a Proton

- Phys.Rev.D 41 (1990) 91
•
DOI:
- 10.1103/PhysRevD.41.91

Polarized protons at RHIC

et al.

- Part.World 3 (1992) 1, 1-12

Single Bremsstrahlung Processes in Gauge Theories

- Phys.Lett.B 103 (1981) 124-128
•
DOI:
- 10.1016/0370-2693(81)90685-7

Multiple Bremsstrahlung in Gauge Theories at High-Energies. 2. Single Bremsstrahlung

et al.

- Nucl.Phys.B 206 (1982) 61-89
•
DOI:
- 10.1016/0550-3213(82)90489-8

Scalar quark pair production in three jet events

I.S. Avaliani
(
- Tbilisi State U.
)
,
Z.V. Merebashvili
(
- Tbilisi State U.
)
,
L.A. Slepchenko
(
- Tbilisi State U.
)

- Z.Phys.C 50 (1991) 473-476
•
DOI:
- 10.1007/BF01551459

GLUON BREMSSTRAHLUNG K FACTORS IN N=1 SUSY QCD

Ya.Z. Darbaidze
(
- Tbilisi State U.
)
,
V.A. Matveev
(
- Dubna, JINR
)
,
Z.V. Merebashvili
(
- Tbilisi State U.
)
,
L.A. Slepchenko
(
- Tbilisi State U.
)

- Phys.Lett.B 206 (1988) 127-132
•
DOI:
- 10.1016/0370-2693(88)91274-9

One loop corrections for polarized deep inelastic Compton scattering

A.P. Contogouris
(
- McGill U. and
- Athens U.
)
,
S. Papadopoulos
(
- McGill U.
)
,
F.V. Tkachov
(
- McGill U.
)

- Phys.Rev.D 46 (1992) 2846-2853
•
DOI:
- 10.1103/PhysRevD.46.2846

The Axial Current in Dimensional Regularization

Michael S. Chanowitz
(
- LBL, Berkeley
)
,
M. Furman
(
- LBL, Berkeley
)
,
I. Hinchliffe
(
- LBL, Berkeley
)

- Nucl.Phys.B 159 (1979) 225-243
•
DOI:
- 10.1016/0550-3213(79)90333-X

Supersymmetric Dimensional Regularization via Dimensional Reduction

Warren Siegel
(
- Harvard U.
)

- Phys.Lett.B 84 (1979) 193-196
•
DOI:
- 10.1016/0370-2693(79)90282-X

Inconsistency of Supersymmetric Dimensional Regularization

W. Siegel
(
- Princeton, Inst. Advanced Study
)

- Phys.Lett.B 94 (1980) 37-40
•
DOI:
- 10.1016/0370-2693(80)90819-9

Regularization in Low-energy Standard Model Calculations

- Phys.Lett.B 237 (1990) 252-255
•
DOI:
- 10.1016/0370-2693(90)91438-H

Dimensional Regularization and Supersymmetry

L.V. Avdeev
(
- Dubna, JINR
)
,
A.A. Vladimirov
(
- Dubna, JINR
)

- Nucl.Phys.B 219 (1983) 262-276
•
DOI:
- 10.1016/0550-3213(83)90437-6

Prompt Photon Production at Colliders

- Phys.Rev.D 42 (1990) 1440-1449
•
DOI:
- 10.1103/PhysRevD.42.1440

The Dominant Part of Higher Order Corrections in Perturbative {QCD}

- Int.J.Mod.Phys.A 5 (1990) 1951
•
DOI:
- 10.1142/S0217751X9000091X

The Dominant Part of Higher Order Corrections for the Subprocess $q g \to \gamma q$

A.P. Contogouris
(
- McGill U.
)
,
S. Papadopoulos
(
- McGill U.
)

- Mod.Phys.Lett.A 5 (1990) 901
•
DOI:
- 10.1142/S0217732390000998

Conventional versus optimization procedures and the gluon distribution

A.P. Contogouris
(
- Athens U. and
- McGill U.
)
,
S. Papadopoulos
(
- McGill U.
)
,
D. Atwood
(
- McGill U.
)

- Theor.Math.Phys. 87 (1991) 374-385,
- Teor.Mat.Fiz. 87 (1991) 62-75
•
DOI:
- 10.1007/BF01016577

Phenomenology of the Anomalous Gluon Contribution to Polarized Leptoproduction

Guido Altarelli
(
- CERN
)
,
W.James Stirling
(
- Durham U.
)

- Part.World 1 (1989) 2, 40-52

Parton distributions from a global QCD analysis of deep inelastic scattering and lepton pair production

Jorge G. Morfin
(
- Fermilab and
- Barcelona, Autonoma U.
)
,
Wu-Ki Tung
(
- Fermilab and
- IIT, Chicago
)

- Z.Phys.C 52 (1991) 13-30
•
DOI:
- 10.1007/BF01412323