Effective-gluon model description of inclusive meson production in. pi. /sup + -/ p and pp collisions

Journal Article · Thu Sep 01 04:00:00 EDT 1977 · Phys. Rev., D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.16.1369· OSTI ID:5441154

Look, G W; Fischbach, E

The recently introduced effective-gluon (EG) model is applied to inclusive meson production at large transverse momentum (p/sub t)/from ..pi../sup + -/p and pp interactions. In the EG model the dependence of the inclusive differential cross section on p/ sub t/ and center-of-momentum energy ..sqrt..s is characterized by a single universal constant B = 18 GeV/sup 2/; this constant is obtained by fitting to the inclusive data for pp ..-->.. cX with c = ..pi../sup + -/..pi../sup 0/, K/sup + -/p, and p-bar. Since the EG model requires that the inclusive differential cross sections for ..pi../sup + -/p ..-->.. X/should be characterized by the same constant B, the dependence of these cross sections on p/sub t/and ..sqrt..s should follow from the previous analysis of pp ..-->.. cX without the introduction of any additional parameters. The only new information required is the form of the momentum distribution function for partons in the incident pion. Several models for this function are considered and it it shown that all of the alternatives lead to approximately the same predictions. Comparison of theory and experiment indicates that the EG model description of the recent Fermilab data of Donaldson et al. is good to approximately 15--20 % per data point over a range of more than 10/sup 5/ in the magnitude of the inclusive cross section.

• Research Organization: Physics Department, Purdue University, West Lafayette, Indiana 47907
• OSTI ID: 5441154
• Journal Information: Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 16:5; ISSN PRVDA
• Country of Publication: United States
• Language: English

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYON-BARYON INTERACTIONS
BOSONS
COMPOSITE MODELS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
DISTRIBUTION FUNCTIONS
ELECTROMAGNETIC FORM FACTORS
ELEMENTARY PARTICLES
FORM FACTORS
GLUON MODEL
HADRON-HADRON INTERACTIONS
HADRONS
INCLUSIVE INTERACTIONS
INTERACTIONS
ISOSPIN
LIE GROUPS
LINEAR MOMENTUM
MATHEMATICAL MODELS
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MESONS
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PARTICLE PROPERTIES
PARTON MODEL
PION MINUS-PROTON INTERACTIONS
PION PLUS-PROTON INTERACTIONS
PION-NUCLEON INTERACTIONS
PION-PROTON INTERACTIONS
POSTULATED PARTICLES
PROTON-NUCLEON INTERACTIONS
PROTON-PROTON INTERACTIONS
QUARKS
SCATTERING
SU GROUPS
SU-3 GROUPS
SYMMETRY GROUPS
TRANSVERSE MOMENTUM