Electroweak interactions in the nuclear domain

Thesis/Dissertation · Fri Jan 01 04:00:00 EST 1988

OSTI ID:5596027

Pollock, S J

A variety of electroweak interactions with nucleons and nuclei is considered as a means to yield tests of the Standard Model, to provide measurements of hadronic structure, and to serve as a guide to experimental efforts. In Part I, single nucleon elastic electroweak processes are studied. The general formalism is outlined, and formulae are presented for cross section for e{sup {minus}} and {upsilon} neutral current processes, {epsilon} charge-changing events, and parity violation. Means have been found to extract both vector and axial form factors from experiment, at arbitrary q{sup 2}. Numerical predictions are presented for these processes, assuming a set of phenomenological form factors. Low every structure in charge-changing reactions would provide tests of CVC and a measurement of the pseudoscalar form factor. Relations between the processes which yield tests of the Standard Model and provide an experimental means to determine the effects of intrinsic parity violation, isospin breaking, and heavy quark content are presented. Parity violation is discussed as a means to measure sin{sup 2}{theta}{sub 2} in the low energy quark-lepton sector, and to measure the weak form factors of the nucleon. Sources of uncertainity are considered, including poorly known electromagnetic neutron form factors, and axial weak form factors. A means to detect anomalous effective axial isoscalar current is provided and the bounds on extra heavy neutral Z bosons a CEBAF parity experiment would provide are discussed. In Part II, coincidence cross sections are studied. The formalism for electroweak single-particle coincidence experiments is outlined. The general angular distribution for single-nucleon coincidence measurements on a deuterium (spin 1) target is derived.

• Research Organization: Stanford Univ., CA (USA)
• OSTI ID: 5596027
• Country of Publication: United States
• Language: English

Related Subjects

645201* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- General & Scattering Theory
653003 -- Nuclear Theory-- Nuclear Reactions & Scattering
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYON REACTIONS
BARYONS
BASIC INTERACTIONS
BOSONS
CHARGE-EXCHANGE INTERACTIONS
CHARGED-PARTICLE REACTIONS
COINCIDENCE METHODS
COUNTING TECHNIQUES
CROSS SECTIONS
CVC THEORY
DEUTERIUM TARGET
ELASTIC SCATTERING
ELECTROMAGNETIC INTERACTIONS
ELECTRON REACTIONS
ELECTRONS
ELEMENTARY PARTICLES
EQUATIONS
FERMIONS
FIELD THEORIES
FORM FACTORS
GENERAL RELATIVITY THEORY
HADRON REACTIONS
HADRONS
INTERACTIONS
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
INVARIANCE PRINCIPLES
LEPTON REACTIONS
LEPTONS
MASSLESS PARTICLES
MATHEMATICAL MODELS
MATTER
MEAN-FIELD THEORY
NEUTRAL-CURRENT INTERACTIONS
NEUTRINO REACTIONS
NEUTRINOS
NEUTRONS
NUCLEAR MATTER
NUCLEAR REACTIONS
NUCLEI
NUCLEON REACTIONS
NUCLEONS
NUMERICAL SOLUTION
P INVARIANCE
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PROPERTIES
RELATIVITY THEORY
SCATTERING
STANDARD MODEL
STRONG INTERACTIONS
SUM RULES
TARGETS
TESTING
UNIFIED GAUGE MODELS
WEAK INTERACTIONS
Z NEUTRAL BOSONS