Searches for R-parity-violating supersymmetry at colliders

Authors
Citation
Y. Sirois, Searches for R-parity-violating supersymmetry at colliders, PHYS ATOM N, 63(7), 2000, pp. 1129-1136
Citations number
68
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICS OF ATOMIC NUCLEI
ISSN journal
1063-7788 → ACNP
Volume
63
Issue
7
Year of publication
2000
Pages
1129 - 1136
Database
ISI
SICI code
1063-7788(200007)63:7<1129:SFRSAC>2.0.ZU;2-E
Abstract
The search for R-parity-violating supersymmetry at existing colliders is re viewed with emphasis on the sensitivity to the new Yukawa couplings lambda, lambda' (inducing lepton-number-violating interactions) and lambda" (induc ing baryon-number-violating interactions). One dramatic consequence of the existence any such nonvanishing coupling is the instability of supersymmetr ic matter. The extent to which this affects the sensitivity to other free p arameters of minimal supersymmetric models has been extensively studied at LEP and is briefly reviewed. Given that supersymmetric matter has not been observed yet, and since its existence still cannot be ruled out, we concent rate here on the important question of a possible "discovery" of supersymme try (if it exists) through the R-parity-violating couplings. The case of re sonant production of sleptons via lambda' and squarks via lambda" at the Te vatron, as well as the case of resonant production of sneutrinos at LEP inv olving lambda, is briefly discussed. A particular emphasis is then put on t he case of resonant production of squarks through electron-quark fusion at HERA which involves lambda'. (C) 2000 MAIK "Nauka/Interperiodica".