Search for Hidden Dimensions in Run I Tevatron Data.pdf

2 Search for Hidden Dimensions in Run I Tevatron Data 0 0 2 S. Hagopian y a Department of Physics, Florida State University, M Tallahassee, Florida, 32312, U.S.A. (on behalf of the DØ and CDF collaborations) 5 1 1 v 8 4 0 5 0 2 0 / x e - We describe the results of four new searches based on data samples from the 1992−1996 p pp Collider run at Fermilab at √s = 1.8 TeV. DØ has searched for resonant slepton production e in the two muon plus two jet channel. Using the R-parity violating (R ) mSUGRA model, h ν˜ and µ˜ masses up to 280 GeV/c2 are excluded. CDF has searched for R scalar top quark : v decays in two tau plus two jet events and set a limit of m 119 GeV/c2 . DØ has searched t1 i for evidence of large extra dimensions in monojet production. Limits are set on MD , the X fundamental mass scale, of 0.68 and 0.63 TeV for n = 4 and 6 dimensions. CDF has interpreted r a a search for new physics in photon + missing energy events as a search for a gravitino and alternatively as a search for effects of graviton production. A gravitino mass limit m3/2 1.17 × 10−5 eV is set. Limits on MD of 0.55, 0.58, and 0.60 TeV for n = 4, 6, and 8 are also determined. 1 Introduction The Standard Model (SM) of particles and forces provides a solid framework for interpreting all the ex