Voltar
Artigo Revisado por pares
BIBTEX RIS

Observation of spin-1 f 1 (1285) in the reaction γγ*→ η 0 </mml:math…

1987; American Physical Society; Volume: 59; Issue: 18 Linguagem: Inglês

10.1103/physrevlett.59.2012

ISSN

1092-0145

Autores

G. Gidal, J. Boyer, F. Butler, D. Cords, G. S. Abrams, D. Amidei, A. Baden, T. Barklow, A. M. Boyarski, P. R. Burchat, D. L. Burke, J. M. Dorfan, G. J. Feldman, L. Gladney, Michael S. Gold, G. Goldhaber, L. Golding, J. S. Haggerty, Gail Hanson, K. Hayes, D. Herrup, R. Hollebeek, W. R. Innes, J. A. Jaros, I. Juricic, J. A. Kadyk, D. Karlen, S. R. Klein, W. T. Ford, R. R. Larsen, B. W. LeClaire, M. E. Levi, N. S. Lockyer, V. Lüth, C. Matteuzzi, M. E. Nelson, R. A. Ong, M. Perl, B. Richter, K. Riles, P.C. Rowson, T. Schaad, H. Schellman, W. B. Schmidke, P. Sheldon, G. H. Trilling, L. De Paula, D. Wood, J. M. Yelton, C. Zaiser,

Tópico(s)

High-Energy Particle Collisions Research

Resumo

We observe both the JPC=1++ f1(1285) and the JPC=0−+ η’(958) in tagged two-photon interactions and the η’(958) in untagged interactions. The measured Q2 dependence and decay distribution support the f1(1285) spin and parity assignment. The radiative width of the f1(1285) is measured as (M2/Q2)Γγγ*=9.4±2.5±1.7 keV, on the assumption of a ρ-pole form factor.Received 18 September 1987DOI:https://doi.org/10.1103/PhysRevLett.59.2012©1987 American Physical Society

Referência(s)