Detection of SUSY Signals in Stau Neutralino Co-annihilation Region at the LHC Academic Article uri icon


  • We study the prospects of detecting the signal in the stau neutralino ( 1 - 10 ) coannihilation region at the LHC using tau () leptons. The co-annihilation signal is characterized by the 1 and 10 mass difference (M) to be 5-15 GeV to be consistent with the WMAP measurement of the cold dark matter relic density as well as all other experimental bounds within the minimal supergravity model. Focusing on s from 20 ; 10 decays in g and q production, we consider inclusive cross E sign T +jet+3 production, with two 's above a high E T threshold and a third above a lower threshold. Two observables, the number of opposite-signed pairs minus the number of like-signed pairs and the peak position of the di-tau invariant mass distribution, allow for the simultaneous determination of M and M g . For M= 9 GeV and M g = 850 GeV with 30 fb -1 of data, we can measure M to 15% and MG to 6%. 2007 American Institute of Physics.

published proceedings

  • AIP Conference Proceedings

author list (cited authors)

  • Arnowitt, R., Aurisano, A., Dutta, B., Kamon, T., Kolev, N., Simeon, P., Toback, D., & Wagner, P.

citation count

  • 1

complete list of authors

  • Arnowitt, R||Aurisano, A||Dutta, B||Kamon, T||Kolev, N||Simeon, P||Toback, D||Wagner, P

publication date

  • April 2007


  • AIP  Publisher