Unusual initial and final state effects in quantum chromodynamics. Final report, July 15, 1983-July 14, 1986

Technical Report · Tue Jul 01 04:00:00 EDT 1986

OSTI ID:5371610

Nelson, C A

This work was in the area of theoretical high energy and nuclear physics. To avoid the non-cancellation of infrared divergences in hadron-hadron scattering, it was proposed that the partons be identified with nearly degenerate, coherent quark-gluon ''jet'' states. For deep-inelastic lepton-hadron scattering, explicit calculation using the operator product expansion showed that the usual nonsinglet coefficient function follows despite different O(..cap alpha../sub s/) finite parts in F/sub 2//sup NS/ and A/sub n//sup NS/. It was also shown that a ''jet'' based factorization occurs at higher twist, through the general order ..cap alpha../sub s/(..cap alpha../sub s/ log ..omega..)/sup n/ where the soft cutoff ..omega.. characterizes the quark jet, when initial quark jets are used to avoid the non-cancelling infrared divergences. The phi phi symmetry tests for P/CP determination and for discrete symmetry violations were generalized to the generic sequential decay X ..-->.. V/sub 1/V/sub 2/ for X of any spin, with each V ..-->.. 2 or 3 spin-0 bosons, anti ll, or anti qq. The correlation between the decay planes in Higgs boson decays into a W pair (or a Z pair), for example, provides a test of the Higgs bosons' CP eigenvalue, and a sensitive probe of the Higgs coupling. 24 refs. (LEW)

• Research Organization: State Univ. of New York, Binghamton (USA). Dept. of Physics
• DOE Contract Number: AC02-83ER40108
• OSTI ID: 5371610
• Report Number(s): DOE/ER/40108-5; ON: DE86014707
• Country of Publication: United States
• Language: English

Related Subjects

645400* -- High Energy Physics-- Field Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
DECAY
DEEP INELASTIC SCATTERING
ELEMENTARY PARTICLES
FACTORIZATION
FIELD THEORIES
FINAL-STATE INTERACTIONS
HADRON-HADRON INTERACTIONS
HIGGS BOSONS
INELASTIC SCATTERING
INTERACTIONS
JET MODEL
LEPTON-BARYON INTERACTIONS
LEPTON-HADRON INTERACTIONS
LEPTON-NUCLEON INTERACTIONS
MATHEMATICAL MODELS
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTONS
POSTULATED PARTICLES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
SCATTERING
SYMMETRY