| Preprint | |
| Report number | CERN-TH-7553-95 ; CTP-TAMU-67-94 ; ACT-24-94 ; hep-ph/9501258 ; CERN-TH.7553-95 ; CERN-TH-7553-95 ; ACT-1994-24 ; CTP-TAMU-94-67 |
| Title | R$_{b}$ in supergravity models |
| Author(s) | Wang, Xu (Texas A-M ; HARC, Woodlands) ; Lopez, Jorge L. (Texas A-M ; HARC, Woodlands) ; Nanopoulos, Dimitri V. (Texas A-M ; HARC, Woodlands ; CERN) |
| Affiliation | (Texas A&M Univ. College Station) ; (HARC The Woodlands) ; (CERN) |
| Publication | 1995 |
| Imprint | 10 Jan 1995 |
| Number of pages | 5 |
| Note | 5 pages, LaTeX, 1 figure (included). |
| Subject category | Particle Physics - Phenomenology |
| Abstract | We compute the supersymmetric contribution to $R_{b}\equiv \Gamma (Z\to b{\bar b})/\Gamma (Z\to {\rm hadrons})$ in a variety of supergravity models. We find $R {\rm susy}_b\lsim0.0004$, which does not shift significantly the Standard Model prediction ($R {\rm SM}_b=0.2162$ for $m_t=160\GeV$). An improvement in experimental precision by a factor of four would be required to be sensitive to such an effect. |
| Other source | Inspire |
| Submitted by | me@cryptons.tamu.edu |
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