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CERN Accelerating science

Article
Report number arXiv:0905.1344
Title Accurate Mass Determinations in Decay Chains with Missing Energy: II
Author(s) Cheng, Hsin-Chia (UC, Davis) ; Gunion, John F. (UC, Davis) ; Han, Zhenyu (UC, Davis) ; McElrath, Bob (CERN)
Publication 2009
Imprint 12 May 2009
Number of pages 40 p, 40
Note Comments: 40 pages, 17 figures
In: Phys. Rev. D 80 (2009) 035020
DOI 10.1103/PhysRevD.80.035020
Subject category Particle Physics - Phenomenology
Abstract We discuss kinematic methods for determining the masses of the particles in events at a hadron collider in which a pair of identical particles is produced with each decaying via a series of on-shell intermediate beyond-the-SM (BSM) particles to visible SM particles and an invisible particle (schematically, pp -> ZZ + jets with Z -> Aa -> Bba -> Ccba -> ... -> cba... + N where a,b,c,... are visible SM particles or groups of SM particles, A,B,C,... are on-shell BSM particles and N is invisible). This topology arises in many models including SUSY processes such as squark and gluino pair production and decay. We present the detailed procedure for the case of Z -> 3 visible particles + N and demonstrate that the masses obtained from the kinematic procedure are independent of the model by comparing SUSY to UED.



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 Datensatz erzeugt am 2009-05-12, letzte Änderung am 2023-03-12


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