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J/PSI PARTICLE [1 record]
Record 1 - internal organization data 2016-03-07
Record 1, English
Record 1, Subject field(s)
- Atomic Physics
Record 1, Main entry term, English
- psi
1, record 1, English, psi
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- psi particle 1, record 1, English, psi%20particle
correct
- J particle 2, record 1, English, J%20particle
correct
- J 3, record 1, English, J
correct
- J/psi particle 4, record 1, English, J%2Fpsi%20particle
correct, see observation
- J/psi 4, record 1, English, J%2Fpsi
correct, see observation
- psi meson 1, record 1, English, psi%20meson
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
The new particle has a mass of about 3.1 billion electron volts (3.1 GeV). That is more than three times the mass of the proton, making the psi one of the heaviest particles known ... The psi has a spin angular momentum of 1, the integer unit indicating the particle must be a meson. It is electrically neutral, and it has zero strangeness. ... The psi particle also decays through the strong interaction, but it has a lifetime of about [ten to the minus twentieth of a] second, 1,000 times longer than the lifetime of a typical hadron of comparable mass. 1, record 1, English, - psi
Record number: 1, Textual support number: 1 OBS
The new particle was discovered independently and at about the same time by two groups of experimenters ... One group, whose members were from the Massachusetts Institute of Technology and the Brookhaven National Laboratory ... gave it the name J. The other group ... made up of physicists from the Stanford Linear Accelerator Center (SLAC) and the Lawrence Berkeley Laboratory ...[designated] the particle by the Greek letter psi ... 1, record 1, English, - psi
Record number: 1, Textual support number: 2 OBS
The word "psi" must be replaced by the corresponding Greek letter or italicized. 5, record 1, English, - psi
Record 1, French
Record 1, Domaine(s)
- Physique atomique
Record 1, Main entry term, French
- particule psi(3105)
1, record 1, French, particule%20psi%283105%29
correct, see observation
Record 1, Abbreviations, French
Record 1, Synonyms, French
- méson psi (3105) 2, record 1, French, m%C3%A9son%20psi%20%283105%29
correct, see observation
- psi(3105) 2, record 1, French, psi%283105%29
correct, see observation
- psi-3105 2, record 1, French, psi%2D3105
correct, see observation
- psi-3100 2, record 1, French, psi%2D3100
correct, see observation
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
La durée de vie de la particule [psi] (3105) est grande par rapport aux désintégrations fortes usuelles; or, étant donné sa masse élevée, le nombre d'états finals énergétiquement possibles (plusieurs mésons [pi] par exemple) est grand [...] 2, record 1, French, - particule%20psi%283105%29
Record number: 1, Textual support number: 1 OBS
Il se trouve parfois que le terme «psi» tout seul est employé pour désigner cette particule; il s'emploie plus souvent pour désigner la «famille» de particules à laquelle elle appartient. 3, record 1, French, - particule%20psi%283105%29
Record number: 1, Textual support number: 2 OBS
Le mot «psi» doit être remplacé par la lettre grecque correspondante ou être écrit en italique. 3, record 1, French, - particule%20psi%283105%29
Record 1, Spanish
Record 1, Textual support, Spanish
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