Quark structure functions of mesons, fragmentation functions, higher-twist effects in QCD, deep inelastic scattering, and the Drell-Yan process. [Constituent binding in hadron wave function cross section azimuthal angular dependence]

Conference · Sun Jul 01 04:00:00 EDT 1979

OSTI ID:5826582

Berger, E L

Inclusion of specific effects associated with constituent binding in hadronic wave functions is shown to lead to important nonscaling, nonfactorizing 1/Q/sup 2/ contributions to cross sections for semi-inclusive deep-inelastic scattering, the Drell-Yan process, and other hard scattering reactions. These 1/Q/sup 2/ higher-twist terms are predicted to be dominant in well defined kinematic regions such as large x and/or large z. They provide angular distributions typical of longitudinally polarized virtual photons and W's, including sin/sup 2/theta terms in meson induced Drell-Yan processes and in e/sup +/e/sup -/ ..-->.. ..pi..X, as well as unusual (1-y) terms in deep-inelastic scattering. Calculations are also presented of the quark structure functions of the pion q/sub ..pi../(x,Q/sup 2/) and for the quark to pion fragmentation function D/sub ..pi..(z,Q/sup 2/). Predictions are made for the azimuthal angle dependence of the cross sections for ..pi..N ..-->.. ..mu.. anti ..mu..X and lN ..-->.. l'..pi..X.

• Research Organization: Stanford Linear Accelerator Center, CA (USA); Argonne National Lab., IL (USA)
• DOE Contract Number: EY-76-C-03-0515
• OSTI ID: 5826582
• Report Number(s): SLAC-PUB-2362; CONF-790642-5
• Country of Publication: United States
• Language: English

Related Subjects

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Baryon No. = 1-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR DISTRIBUTION
ANNIHILATION
BARYON-BARYON INTERACTIONS
BASIC INTERACTIONS
BINDING ENERGY
BOSONS
COMPOSITE MODELS
CROSS SECTIONS
DEEP INELASTIC SCATTERING
DISTRIBUTION
ELECTROMAGNETIC INTERACTIONS
ELECTRON-POSITRON INTERACTIONS
ELEMENTARY PARTICLES
ENERGY
FIELD THEORIES
FUNCTIONS
HADRON-HADRON INTERACTIONS
HADRONS
INCLUSIVE INTERACTIONS
INELASTIC SCATTERING
INTERACTIONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-LEPTON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
LINEAR MOMENTUM
MATHEMATICAL MODELS
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MESONS
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PION-NUCLEON INTERACTIONS
PIONS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MODEL
SCATTERING
SEMI-INCLUSIVE INTERACTIONS
STRUCTURE FUNCTIONS
TRANSVERSE MOMENTUM
VIRTUAL PARTICLES
WAVE FUNCTIONS