Signals for minimal supergravity at the CERN Large Hadron Collider: Multijet plus missing energy channel
- Department of Physics Florida State University, Tallahassee, Florida 32306 (United States)
We use ISAJET to perform a detailed study of the missing transverse energy {ital @};sE{sub {ital T}} plus multijet signal expected from superparticle production at the CERN LHC. Our analysis is performed within the framework of the minimal supergravity model with gauge coupling unification and radiative electroweak symmetry breaking. We delineate the region of parameter space where the {ital @};sE{sub {ital T}} supersymmetry signal should be observable at the LHC and compare it to the regions explorable via searches for sleptons and for chargino or neutralino production. We confirm that, given a data sample of 10 fb{sup {minus}1},{ital m}{sub {ital {tilde g}}}{similar_to}1300 GeV can be explored if {ital m}{sub {ital {tilde q}}}{much_gt}{ital m}{sub {ital {tilde g}}}, while {ital m}{sub {ital {tilde g}}}{similar_to}2000 GeV can be probed if {ital m}{sub {ital {tilde q}}}{congruent}{ital m}{sub {ital {tilde g}}}. We further examine what information can be gleaned from scrutinizing this event sample. For instance the multijet multiplicity yields information on whether squark production makes a significant contribution to the observed {ital @};sE{sub {ital T}} sample. Furthermore reconstructing hemispheric masses may yield a measure of {ital m}{sub {ital {tilde g}}} to {similar_to}15--25 % if gluinos are lighter than 700--800 GeV. Finally, for favorable ranges of parameters, by reconstructing masses of tagged {ital b} {bar b} jet pairs, it may be possible to detect Higgs bosons produced via sparticle cascade decay chains.
- DOE Contract Number:
- FG05-87ER40319; AC02-76CH00016; FG03-94ER40833
- OSTI ID:
- 115928
- Journal Information:
- Physical Review, D, Journal Name: Physical Review, D Journal Issue: 5 Vol. 52; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
Similar Records
Precision electroweak tests of the minimal and flipped SU(5) supergravity models
New signals for gluinos and squarks of supergravity at the Fermilab Tevatron collider