P or CP determination by sequential decays: V1V2 modes with decays into l-bar/sub A/l/sub B/ and/or q-bar/sub A/q/sub B/

Journal Article · Wed Jan 01 04:00:00 EST 1986 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.33.80· OSTI ID:6278840

Dell'Aquila, J R; Nelson, C A

For application at modern colliders, the phiphi symmetry tests are generalized to the generic sequential decay X V1V2 where at least one of the vector bosons decays into a lepton and an antilepton, or a quark and an antiquark. The general decay correlation function I(theta1,theta2,phi) and its integrated distributions are simultaneously characterized in convenient 's, US 's, and el's which are simple triquadratic functions of the three sets of helicity amplitudes. From a JJ, UPSILONUPSILON, or ZZ mode the parity eta/sub P/ or the CP eigenvalue el/sub C/P of X can always be determined if the decay is respectively P or CP invariant, as can (-)/sup J/ of X except in certain circumstances. From a W W mode, el/sub C/P can always be determined. For modes such as phiJ, JUPSILON, and phiZ, JZ, eta/sub P/(-)/sup J/, or el/sub C/P(-)/sup J/ can be determined provided certain amplitudes do not accidentally vanish. Generalization to the gZ and gg decay channels, g = gluon jet, is discussed.

• Research Organization: Department of Physics, State University of New York at Binghamton, Binghamton, New York 13901
• DOE Contract Number: AC02-83ER40108
• OSTI ID: 6278840
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 33:1; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645302* -- High Energy Physics-- Particle Invariance Principles & Symmetries-- Applications to Electromagnetic & Weak Interactions-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BEAMS
BOSONS
COLLIDING BEAMS
CP INVARIANCE
DECAY
ELEMENTARY PARTICLES
GLUONS
HADRONS
HELICITY
INTERMEDIATE BOSONS
INTERMEDIATE VECTOR BOSONS
INVARIANCE PRINCIPLES
MESONS
P INVARIANCE
PARTICLE PROPERTIES
POSTULATED PARTICLES
QUARKS
TESTING