Super-leading logarithms in non-global observables in QCD: Fixed order calculation

Keates, James; Seymour, Michael H.

doi:10.1088/1126-6708/2009/04/040

Super-leading logarithms in non-global observables in QCD: Fixed order calculation

James Keates
(
- Manchester U.
)
,
Michael H. Seymour
(
- Manchester U. and
- CERN
)

Feb, 2009

18 pages

Published in:

JHEP 04 (2009) 040

e-Print:

0902.0477 [hep-ph]

DOI:

10.1088/1126-6708/2009/04/040

Report number:

MAN-HEP-2009-7,
CERN-PH-TH-2009-018

View in:

reference search30 citations

Citations per year

Abstract: (arXiv)

Super-leading logarithmic terms have previously been observed in non-global QCD observables. In this paper we re-calculate the first super-leading contribution to the `gaps between jets' cross-section using a diagrammatic fixed order approach. We calculate for the first time the super-leading contribution at fifth order in alpha_s.

QCD
Jets
parton: hard scattering
gluon: emission
approximation: eikonal
quantum chromodynamics
rapidity dependence
Feynman graph: higher-order
strong interaction: coupling constant
jet

References(15)

Figures(0)

Evolution of color exchange in QCD hard scattering

Nikolaos Kidonakis
(
- Edinburgh U.
)
,
Gianluca Oderda
(
- SUNY, Stony Brook
)
,
George F. Sterman
(
- SUNY, Stony Brook
)

- Nucl.Phys.B 531 (1998) 365-402
•
e-Print:
- hep-ph/9803241
•
DOI:
- 10.1016/S0550-3213(98)00441-6

Energy and color flow in dijet rapidity gaps

- Phys.Rev.Lett. 81 (1998) 3591-3594
•
e-Print:
- hep-ph/9806530
•
DOI:
- 10.1103/PhysRevLett.81.3591

Dijet rapidity gaps in photoproduction from perturbative QCD

Gianluca Oderda
(
- SUNY, Stony Brook
)

- Phys.Rev.D 61 (2000) 014004
•
e-Print:
- hep-ph/9903240
•
DOI:
- 10.1103/PhysRevD.61.014004

Energy flow in interjet radiation

Carola F. Berger
(
- SUNY, Stony Brook
)
,
Tibor Kucs
(
- SUNY, Stony Brook
)
,
George F. Sterman
(
- SUNY, Stony Brook and
- Brookhaven
)

- Phys.Rev.D 65 (2002) 094031
•
e-Print:
- hep-ph/0110004
•
DOI:
- 10.1103/PhysRevD.65.094031

The Resummation of interjet energy flow for gaps between jets processes at HERA

R.B. Appleby
(
- Manchester U.
)
,
M.H. Seymour
(
- Manchester U.
)

- JHEP 09 (2003) 056
•
e-Print:
- hep-ph/0308086
•
DOI:
- 10.1088/1126-6708/2003/09/056

Resummation of nonglobal QCD observables

M. Dasgupta
(
- DESY
)
,
G.P. Salam
(
- CERN and
- Paris U., VI-VII
)

- Phys.Lett.B 512 (2001) 323-330
•
e-Print:
- hep-ph/0104277
•
DOI:
- 10.1016/S0370-2693(01)00725-0

Accounting for coherence in interjet E(t) flow: A Case study

Mrinal Dasgupta
(
- DESY
)
,
Gavin P. Salam
(
- Paris U., VI-VII
)

- JHEP 03 (2002) 017
•
e-Print:
- hep-ph/0203009
•
DOI:
- 10.1088/1126-6708/2002/03/017

Super-leading logarithms in non-global observables in QCD

Jeffrey R. Forshaw
(
- Manchester U.
)
,
A. Kyrieleis
(
- Manchester U.
)
,
M.H. Seymour
(
- Manchester U. and
- CERN
)

- JHEP 08 (2006) 059
•
e-Print:
- hep-ph/0604094
•
DOI:
- 10.1088/1126-6708/2006/08/059

Super-leading logarithms in non-global observables in QCD: Colour basis independent calculation

J.R. Forshaw
(
- Manchester U.
)
,
A. Kyrieleis
(
- Manchester U.
)
,
M.H. Seymour
(
- Manchester U. and
- CERN
)

- JHEP 09 (2008) 128
•
e-Print:
- 0808.1269
•
DOI:
- 10.1088/1126-6708/2008/09/128

NONCANCELLING INFRARED DIVERGENCES IN QCD COHERENT STATE

- Nucl.Phys.B 264 (1986) 588-620,
- Florence Univ. - DFF-85-15 (85,REC.AUG.) 56p,
- Nucl. Phys. B264 ( 1986) 588-620 and Florence Univ. - DFF-85-15 (85,REC.AUG.) 56p
•
DOI:
- 10.1016/0550-3213(86)90500-6

Sudakov resummation of multiparton QCD cross-sections

- Phys.Lett.B 575 (2003) 268-278
•
e-Print:
- hep-ph/0307035
•
DOI:
- 10.1016/j.physletb.2003.09.068

Gaps between jets in the high energy limit

Jeffrey R. Forshaw
(
- Manchester U.
)
,
A. Kyrieleis
(
- Manchester U.
)
,
M.H. Seymour
(
- Manchester U.
)

- JHEP 06 (2005) 034
•
e-Print:
- hep-ph/0502086
•
DOI:
- 10.1088/1126-6708/2005/06/034

Soft gluons in Higgs plus two jet production

Jeffrey R. Forshaw
(
- Manchester U.
)
,
Malin Sjodahl
(
- Manchester U.
)

- JHEP 09 (2007) 119
•
e-Print:
- 0705.1504
•
DOI:
- 10.1088/1126-6708/2007/09/119

Automatic Feynman Graph Generation

Paulo Nogueira
(
- Lisbon, IFM
)

- J.Comput.Phys. 105 (1993) 279-289
•
DOI:
- 10.1006/jcph.1993.1074

COLOR: A Computer program for QCD color factor calculations

Jari Hakkinen
(
- Lund U.
)
,
Hamid Kharraziha
(
- Lund U.
)

- Comput.Phys.Commun. 100 (1997) 311-321
•
e-Print:
- hep-ph/9603229
•
DOI:
- 10.1016/S0010-4655(96)00140-3