Published June 1975
| Version v1
Journal article
The discret charm of particles
Creators
Description
It is shown that the proceeding which caused physicists to introduce a new quantum number, charm, into the theory of elementary particles are the same as those which led to the introduction of isotropic spin, hypercharge, strangeness or colour. Postulated as early as 1964 in the quark model by Glashow and Bjorken, with the charmed quark, it resurfaced in a roundabout way with neutral currents confirmed by neutrino experiments. The stability of the psi mesons discovered at 3.1GeV and 3.7GeV in 1975 would be due to a disintegration into D mesons (charmed mesons) of mass between 1850 and 2050GeV. Mean while Brookhaven seems to have discovered a 2426GeV charmed baryon
Abstract (French)
On montre que la demarche qui a conduit les physiciens a introduire un nouveau nombre quantique, le charme, dans la theorie des particules elementaires est la meme que celle qui leur a fait introduire le spin isotopique, l'hypercharge, l'etrangete ou la couleur, Postule des 1964 dans le modele quark, par Glashow et Bjorken avec le quark charme, il a refait surface par le chemin detourne des courants neutres confirmes par les experiences neutrinos. La stabilite des mesons psi decouverts a 3,1GeV et 3,7GeV en 1975 s'expliquerait par une desintegration en mesons D (mesons charmes) de masse comprise entre 1,850 et 2,050GeV. Il semblerait, en attendant la decouverte du meson charme, que Brookhaven aurait decouvert un baryon charme de 2,426GeVAdditional details
Additional titles
- Original title (French)
- Le charme discret des particules
Publishing Information
- Journal Title
- Sci. Avenir
- Journal Issue
- no. 340
- Series
- Sci. Avenir.
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 7221093
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- CHARM PARTICLES
- Descriptors DEC
- ELEMENTARY PARTICLES; POSTULATED PARTICLES