Published April 1999
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Off-diagonal helicity density matrix elements for vector mesons produced in polarized e+e- processes
- 1. Torino Univ. (Italy). Dipt. di Fisica Teorica
- 2. Lund Univ. (Sweden). Dept. of Theoretical Physics
- 3. Centro Brasileiro de Pesquisas Fisicas (CBPF), Rio de Janeiro, RJ (Brazil)
- 4. Istituto Nazionale di Fisica Nucleare, Cagliari (Italy)
- 5. Instituto de Fisica Teorica (IFT), Sao Paulo, SP (Brazil)
Description
Final state q q-bar interactions give origin to non zero values of the off-diagonal element ρ1,-1 of the helicity density matrix of vector mesons produced in e+ e- annihilations, as confirmed by recent OPAL data on φ, D* and K*'s. New predictions are given for ρ1,-1 of several mesons produced at large xE and small pT - i.e. collinear with the parent jet - in the annihilation of polarized 3+ and 3-, the results depend strongly on the elementary dynamics and allow further non trivial tests of the standard model. (author)
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Additional details
Publishing Information
- Imprint Pagination
- 23 p.
- ISSN
- 0029-3865
- Report number
- CBPF-NF--012/99
INIS
- Country of Publication
- Brazil
- Country of Input or Organization
- Brazil
- INIS RN
- 30055981
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- ANNIHILATION; ELECTRON-POSITRON INTERACTIONS; ELEMENTARY PARTICLES; HELICITY; PARTICLE INTERACTIONS; PARTICLE PROPERTIES; QUARK-ANTIQUARK INTERACTIONS; VECTOR MESONS
- Descriptors DEC
- BOSONS; ELEMENTARY PARTICLES; HADRONS; INTERACTIONS; LEPTON-LEPTON INTERACTIONS; MESONS; PARTICLE INTERACTIONS; PARTICLE PROPERTIES
Optional Information
- Notes
- 8 refs., 6 figs.
- Secondary number(s)
- DFTT--19/99; INFNCA-TH--9905; HEP-PH--9904205