Bloch-Nordsieck regularization of QCD transverse-momentum distributions

Journal Article · Fri Jun 01 00:00:00 EDT 1990 · Physical Review, D (Particles Fields); (USA)

DOI:https://doi.org/10.1103/PhysRevD.41.3360· OSTI ID:6746745

Grau, A ^[1]; Pancheri, G ^[2]; Srivastava, Y N ^[3]

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1. Universitat Autonoma de Barcelona, Grup de Fisica Teorica, 08193 Bellaterra (Spain)
2. Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati, P.O. Box 13, I-00044 Frascati (Italy) University of Palermo, Palermo (Italy)
3. Northeastern University, Boston, MA (USA) University of Perugia, Perugia (Italy)

An expression for transverse-momentum distributions is presented for Drell-Yan-type processes: it is infrared finite, includes soft-gluon summation in the leading-logarithmic approximation and reproduces the first-order perturbative results at large {ital p}{sub {ital T}}. In addition, our expression incorporates soft QCD radiative corrections to that part of the cross section where hard bremsstrahlung dominates. We compute {ital W} transverse-momentum distributions and average values for a set of different energies: {radical}{ital s} =630 GeV, 1.8 TeV, 6 TeV, and 18 TeV.

• OSTI ID: 6746745
• Journal Information: Physical Review, D (Particles Fields); (USA), Vol. 41:11; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
HADRON-HADRON INTERACTIONS
TRANSVERSE MOMENTUM
W MINUS BOSONS
PARTICLE PRODUCTION
W PLUS BOSONS
BREMSSTRAHLUNG
CROSS SECTIONS
DRELL MODEL
GEV RANGE 100-1000
GLUONS
INFRARED DIVERGENCES
JET MODEL
PERTURBATION THEORY
QUANTUM CHROMODYNAMICS
RADIATIVE CORRECTIONS
TEV RANGE 01-10
TEV RANGE 10-100
BOSONS
CORRECTIONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ENERGY RANGE
FIELD THEORIES
GEV RANGE
INTERACTIONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
LINEAR MOMENTUM
MATHEMATICAL MODELS
PARTICLE INTERACTIONS
PARTICLE MODELS
POSTULATED PARTICLES
QUANTUM FIELD THEORY
RADIATIONS
TEV RANGE
645204* - High Energy Physics- Particle Interactions & Properties-Theoretical- Strong Interactions & Properties
645400 - High Energy Physics- Field Theory