A hybrid method for determining particle masses at the Large Hadron Collider with fully identified cascade decays

Autor:	Nojiri, M. M., Polesello, G., Tovey, D. R.
Rok vydání:	2007
Předmět:	High Energy Physics - Phenomenology
Zdroj:	JHEP 0805:014,2008
Druh dokumentu:	Working Paper
DOI:	10.1088/1126-6708/2008/05/014
Popis:	A new technique for improving the precision of measurements of SUSY particle masses at the LHC is introduced. The technique involves kinematic fitting of events with two fully identified decay chains. We incorporate both event ETmiss constraints and independent constraints provided by kinematic end-points in experiment invariant mass distributions of SUSY decay products. Incorporation of the event specific information maximises the information used in the fit and is shown to reduce the mass measurement uncertainites by ~30% compared to conventional fitting of experiment end-point constraints for the SPS1a benchmark model. Comment: 10 pages, 2 .eps figures, JHEP3 style
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/0712.2718 Zobrazit plný text záznamu View this record from Arxiv