Production of jets and single particles at large transverse momentum in photon-photon collisions

Journal Article · Thu Mar 01 00:00:00 EST 1979 · Phys. Rev., D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.19.1418· OSTI ID:6206340

Brodsky, S J; DeGrand, T; Gunion, J; Weis, J

Photon-photon collisions will be a copious source of jets and single particles produced with large transverse momentum in e/sup +/e/sup -/ storage rings. These jets and single particles have topological properties which allow them to be easily distinguished from e/sup +/e/sup -/ annihilation events. They arise from several sources: (a) quark exchange in ..gamma gamma.. ..-->.. qq-bar, (b) quantum-chromodynamics (QCD) induced processes such as ..gamma../sub 1/ ..-->.. qq-bar, with qq scattering via vector-gluon exchange, and (c) differential cross sections proportional to p/sub T//sup -6/ and p/sub T//sup -8/ at fixed x/sub T/ = 2p/sub T//..sqrt..s-bar and fixed theta/sub c.m./ characteristic of the constituent-interchange model (CIM) picture. In particular, we predict Edsigma/d/sup 3/p (e/sup +/e/sup -/ ..-->.. e/sup +/e/sup -/ + jet + X) approx. (1 - x/sub T/)/sup 2/p/sub T//sup -6/ nb GeV/sup 4/ for p/sub T/ > 2 GeV/c, characteristic of the CIM subprocess ..gamma..q ..-->.. ..pi..q. Remarkably, the jet-trigger cross sections Edsigma/d/sup 3/p (..gamma gamma.. ..-->.. jet + X) turn out to be asymptotically scale-free and independent of ..cap alpha../sub c/(p/sub T//sup 2/) when perturbative QCD contributions to all orders are included.

• Research Organization: Stanford Linear Accelerator Center, Stanford University, Stanford, California 94305
• OSTI ID: 6206340
• Journal Information: Phys. Rev., D; (United States), Vol. 19:5
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ELECTRON-POSITRON INTERACTIONS
DIFFERENTIAL CROSS SECTIONS
PHOTON-PHOTON INTERACTIONS
ANNIHILATION
CIM MODEL
GLUON MODEL
INELASTIC SCATTERING
JET MODEL
PARTICLE PRODUCTION
QUANTUM CHROMODYNAMICS
QUARK MODEL
STORAGE RINGS
STRUCTURE FUNCTIONS
TRANSVERSE MOMENTUM
BASIC INTERACTIONS
COMPOSITE MODELS
CROSS SECTIONS
ELECTROMAGNETIC INTERACTIONS
FIELD THEORIES
FUNCTIONS
INTERACTIONS
LEPTON-LEPTON INTERACTIONS
LINEAR MOMENTUM
MATHEMATICAL MODELS
PARTICLE INTERACTIONS
PARTICLE MODELS
QUANTUM FIELD THEORY
SCATTERING
645202* - High Energy Physics- Particle Interactions & Properties-Theoretical- Electromagnetic Interactions & Properties
645400 - High Energy Physics- Field Theory