A search for fractionally charged particles at the CERN intersecting storage rings

Final results of a search for fractionally charged particles at the CERN Intersecting Storage Rings are reported. Several independent scintillation counter, multiwire proportional chamber telescopes simultaneously sampled c.m. production angles from 0 degrees to 90 degrees . The experiment was sensi...

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Detalles Bibliográficos
Autores principales: Fabjan, C W, Caldwell, D O, Gruhn, Charles R, Peak, L S, Rochester, L S, Sauli, Fabio, Stierlin, U, Tirler, R, Winstein, B, Zahniser, D
Lenguaje:eng
Publicado: 1975
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/0550-3213(75)90602-1
http://cds.cern.ch/record/873134
Descripción
Sumario:Final results of a search for fractionally charged particles at the CERN Intersecting Storage Rings are reported. Several independent scintillation counter, multiwire proportional chamber telescopes simultaneously sampled c.m. production angles from 0 degrees to 90 degrees . The experiment was sensitive to particles of electric charge in the range 0.1e< mod Q mod <0.8e, with velocities greater than 0.25c and with masses up to, in principle, 47 GeV/c/sup 2/. No such particles were observed among the products of 1.2*10/sup 10/ proton- proton interactions at s=2830 GeV/sup 2/. The cross section limit for the production of quark-antiquark pairs of charge mod Q mod =/sup 1 ///sub 3/e or /sup 2///sub 3/e in the reaction pp to ppqq, at s=2830 GeV/sup 2/, is sigma <or approximately=8*10/sup -35/ cm/sup 2/ for quark masses up to approximately 20 GeV/c/sup 2/. (30 refs).

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