Theoretical particle physics. Progress report, December 1, 1975--November 30, 1976. [Summaries of research activities at Indiana University]
Research can be divided into two categories, the first dealing with the phenomenological treatment of two-body collisions, and the second dealing with symmetry-breaking and charm within the framework of the quark model. A partial-wave amplitude analysis of ..pi../sup +/ proton elastic scattering at incident pion momenta between 1.6 GeV/c and 10 GeV/c has been made. The partial wave amplitudes agree with those at lower momenta and are close to the Regge amplitudes at higher momenta. A number of new ..delta.. resonances are suggested. Also high energy proton-proton scattering was analyzed using Reggeon field theory and a bare pomeron intercept above unity. Furthermore, high energy pion-nucleon charge-exchange data were described by including absorptive corrections to a rho Reggeon exchange. In the second category, meson mass spectra, including predicted masses of charmed mesons, in the quark model using attractive 1/r plus linear confining potentials. The quark model was used to obtain relations among electromagnetic mass splittings of mesons, including charmed mesons, to calculate the pion form factor, and to obtain magnetic moments of baryons. Also restrictions on a quark potential with confinement were discussed in order to obtain linear Regge trajectories. A list of publications is included.
- Research Organization:
- Indiana Univ., Bloomington (USA). Dept. of Physics
- DOE Contract Number:
- E(11-1)-2009-TAS-B
- OSTI ID:
- 7144623
- Report Number(s):
- COO-2009-121; TRN: 76-023264
- Country of Publication:
- United States
- Language:
- English
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CHARM PARTICLES
RESEARCH PROGRAMS
HIGH ENERGY PHYSICS
SYMMETRY BREAKING
ABSORPTION
BARYON RESONANCES
BARYONS
BOUNDARY CONDITIONS
CORRECTIONS
ELASTIC SCATTERING
EXCHANGE INTERACTIONS
FORM FACTORS
GEV RANGE 01-10
LINEAR MOMENTUM
MAGNETIC MOMENTS
MASS
MESON RESONANCES
MESONS
PARTIAL WAVES
PION PLUS-PROTON INTERACTIONS
PION-NUCLEON INTERACTIONS
PIONS
POMERANCHUK PARTICLES
POTENTIAL SCATTERING
PROTON-PROTON INTERACTIONS
QUANTUM FIELD THEORY
QUARK MODEL
REGGE POLES
REGGE TRAJECTORIES
RHO-765 RESONANCES
SCATTERING AMPLITUDES
TWO-BODY PROBLEM
AMPLITUDES
BARYON-BARYON INTERACTIONS
BOSONS
COMPOSITE MODELS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
FIELD THEORIES
GEV RANGE
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
MANY-BODY PROBLEM
MATHEMATICAL MODELS
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
NUCLEON-NUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PROPERTIES
PHYSICS
PION-PROTON INTERACTIONS
POSTULATED PARTICLES
PROTON-NUCLEON INTERACTIONS
PSEUDOSCALAR MESONS
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645204* - High Energy Physics- Particle Interactions & Properties-Theoretical- Strong Interactions & Properties