[chi][sub [ital c]0,][ital c2][r arrow][rho][rho] decays and the [rho] polarization: Massless versus constituent quarks
Journal Article
·
· Physical Review, D (Particles Fields); (United States)
- Dipartimento di Fisica Teorica, Universita di Torino and Istituto Nazionale di Fisica Nucleare, Sezione di Torino, via Pietro Giuria 1, I-10125 Torino (Italy)
- Istituto Nazionale di Fisica Nucleare, Sezione di Cagliari, via Ada Negri 18, I-09127 Cagliari (Italy)
We compute the helicity density matrix of vector mesons produced in the decays [chi][sub [ital c]0,][ital c2][r arrow][ital M][sub 1][ital M2], in the framework of perturbative QCD, allowing for mass corrections. Both the case in which the light quarks inside the final mesons are treated as massless current quarks and the case in which they are seen as constituent massive ones are considered. Explicit results are given for the helicity density matrix of [rho] mesons, [rho]([rho]), showing significant differences between the two cases; the measurement of [rho]([rho]) should then allow a precise evaluation of these mass effects.
- OSTI ID:
- 6876006
- Journal Information:
- Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 47:9; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
Similar Records
[chi][sub [ital c]2][r arrow][rho][rho] decay and the [rho] polarization in inclusive processes: A test of mass effects
{chi}{sub {ital c}2}{r_arrow}{rho}{rho} and the {rho} polarization in massless perturbative QCD: How to test the distribution amplitudes
Semileptonic decays [ital B][r arrow][rho][ital l][nu] and [ital D][r arrow][rho][ital l][nu] and the heavy-quark symmetry
Journal Article
·
Mon Aug 01 00:00:00 EDT 1994
· Physical Review, D (Particles Fields); (United States)
·
OSTI ID:7272754
{chi}{sub {ital c}2}{r_arrow}{rho}{rho} and the {rho} polarization in massless perturbative QCD: How to test the distribution amplitudes
Journal Article
·
Wed May 01 00:00:00 EDT 1996
· Physical Review, D
·
OSTI ID:284089
Semileptonic decays [ital B][r arrow][rho][ital l][nu] and [ital D][r arrow][rho][ital l][nu] and the heavy-quark symmetry
Journal Article
·
Sat May 01 00:00:00 EDT 1993
· Physical Review, D (Particles Fields); (United States)
·
OSTI ID:6612622
Related Subjects
662350* -- Decays of Mesons-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
BOSONS
CHARMONIUM
CHI0-3415 MESONS
CHI2-3555 MESONS
COMPOSITE MODELS
DECAY
DECAY AMPLITUDES
DENSITY MATRIX
ELEMENTARY PARTICLES
FIELD THEORIES
HADRONS
HELICITY
MATHEMATICAL MODELS
MATRICES
MESONS
PARTICLE DECAY
PARTICLE MODELS
PARTICLE PROPERTIES
POLARIZATION
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MODEL
QUARKONIUM
RHO-770 MESONS
SCALAR MESONS
TENSOR MESONS
TRANSITION AMPLITUDES
VECTOR MESONS
WEAK HADRONIC DECAY
WEAK PARTICLE DECAY
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
BOSONS
CHARMONIUM
CHI0-3415 MESONS
CHI2-3555 MESONS
COMPOSITE MODELS
DECAY
DECAY AMPLITUDES
DENSITY MATRIX
ELEMENTARY PARTICLES
FIELD THEORIES
HADRONS
HELICITY
MATHEMATICAL MODELS
MATRICES
MESONS
PARTICLE DECAY
PARTICLE MODELS
PARTICLE PROPERTIES
POLARIZATION
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MODEL
QUARKONIUM
RHO-770 MESONS
SCALAR MESONS
TENSOR MESONS
TRANSITION AMPLITUDES
VECTOR MESONS
WEAK HADRONIC DECAY
WEAK PARTICLE DECAY