Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2010-06-13
Phys.Rev.D83:118701,2011
Physics
High Energy Physics
High Energy Physics - Experiment
5 pages
Scientific paper
10.1103/PhysRevD.83.118701
We present a comment on the kinematic variable $m_{CT2}$ recently proposed in "Amplification of endpoint structure for new particle mass measurement at the LHC". The variable is designed to be applied to models such as R-parity conserving Supersymmetry (SUSY) when there is pair production of new heavy particles each of which decays to a single massless visible and a massive invisible component. It was proposed in "Amplification of endpoint structure for new particle mass measurement at the LHC" that a measurement of the peak of the $m_{CT2}$ distribution could be used to precisely constrain the masses of the SUSY particles. We show that when Standard Model backgrounds are included in simulations, the sensitivity of the $m_{CT2}$ variable to the SUSY particle masses is more seriously impacted for $m_{CT2}$ than for other previously proposed variables.
Barr Alan J.
Gwenlan Claire
Lester Christopher G.
Young C. J. S.
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