Invariant integration in 2. -->. 3 processes in quantum chromodynamics

Journal Article · Sun Oct 31 23:00:00 EST 1982 · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)

OSTI ID:5907946

Duplii, S A; Rekalo, M P

The energy and angular distributions of the quark-antiquark pair QQ-bar (treated as a whole) which is produced in the processes qq-bar..-->..QQ-barg and gq..-->..QQ-barq, where g is the gluon, q = u,d,s are the light quarks, and Q are the heavy quarks, are found to lowest order in a perturbation expansion in the quark-gluon interaction constant. The interference of the two classes of diagrams responsible for QQ-bar pair production by one and two gluons does not vanish (in contrast to quantum electrodynamics). The technique of invariant integration developed in quantum electrodynamics is generalized to the case of quantum chromodynamics. This allows the analytic calculation of all contributions to the differential cross section of the processes qq-bar..-->..QQ-barg and gq..-->..QQ-barq, integrated over the final QQ-bar pair.

• OSTI ID: 5907946
• Journal Information: Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 36:5; ISSN SJNCA
• Country of Publication: United States
• Language: English

Related Subjects

645206* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions
Baryon No. = 1-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR DISTRIBUTION
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
DISTRIBUTION
ELECTRODYNAMICS
FIELD THEORIES
INTERACTIONS
PARTICLE INTERACTIONS
PERTURBATION THEORY
QUANTUM CHROMODYNAMICS
QUANTUM ELECTRODYNAMICS
QUANTUM FIELD THEORY
QUARK-ANTIQUARK INTERACTIONS
QUARK-GLUON INTERACTIONS