We present a search for like-sign dielectron plus multijet events using 107 pb(-1) of data in p (p) over bar collisions at root s = 1.8 TeV collected in 1992-1995 by the CDF experiment. Finding no events that pass our selection, we set sigma x BR limits on two supersymmetric processes that can produce this experimental signature: gluino-gluino or squark-antisquark production with R-parity violating decays of the charm squark or lightest neutralino via a nonzero lambda'(121) coupling. We compare our results to the next-to-leading order calculations for gluino and squark production cross sections and set lower limits on M((g) over tilde), M((t) over tilde(1)), and M((q) over tilde).
Search for R-parity violating supersymmetry using like-sign dielectrons in p(p)over-bar collisions at root s=1.8 TeV
DELL'ORSO, MAURO;DONATI, SIMONE;PUNZI, GIOVANNI;
1999-01-01
Abstract
We present a search for like-sign dielectron plus multijet events using 107 pb(-1) of data in p (p) over bar collisions at root s = 1.8 TeV collected in 1992-1995 by the CDF experiment. Finding no events that pass our selection, we set sigma x BR limits on two supersymmetric processes that can produce this experimental signature: gluino-gluino or squark-antisquark production with R-parity violating decays of the charm squark or lightest neutralino via a nonzero lambda'(121) coupling. We compare our results to the next-to-leading order calculations for gluino and squark production cross sections and set lower limits on M((g) over tilde), M((t) over tilde(1)), and M((q) over tilde).I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
