Mass and Spin Measurement with M_T2 and MAOS Momentum

Abstract

We discuss the M_T2-kink method to determine the masses of both the dark matter WIMP and its mother particle produced at the LHC. We then introduce a new kinematic variable, the M_T2-Assisted-On-Shell (MAOS) momentum, that provides a systematic approximation to the invisible particle momenta in hadron collider events producing a pair of invisible particles, and apply it to certain SUSY processes and their UED equivalents to determine the spin of gluino/KK-gluon and of slepton/KK-lepton. An application of the MAOS momentum to the SM Higgs mass measurement is briefly discussed also.

10 pages, 9 figures, Talk given at BSM-LHC, Boston, MA, USA, June 2-4

References in corpus (19)

• Gluino Stransverse Mass
• Measuring superparticle masses at hadron collider using the transverse mass kink
• Using Subsystem MT2 for Complete Mass Determinations in Decay Chains with Missing Energy at Hadron Colliders
• The Gaugino Code
• Accurate Mass Determinations in Decay Chains with Missing Energy
• M_T2-assisted on-shell reconstruction of missing momenta and its application to spin measurement at the LHC
• Precise reconstruction of sparticle masses without ambiguities
• Measuring the Higgs boson mass in dileptonic W-boson decays at hadron colliders
• The Precision Determination of Invisible-Particle Masses at the LHC
• Novel reconstruction technique for New Physics processes with initial state radiation
• Kahler Stabilized, Modular Invariant Heterotic String Models
• Studying Gaugino Mass Unification at the LHC
• Measuring the top quark mass with m_T2 at the LHC
• Reconstructing the Higgs boson in dileptonic W decays at hadron collider
• Dark Matter and LHC: What is the Connection?
• Solving the LHC Inverse Problem with Dark Matter Observations
• Connecting (Supersymmetry) LHC Measurements with High Scale Theories
• Unravelling Strings at the LHC
• The LHC Inverse Problem, Supersymmetry, and the ILC

Cited by in corpus (10)

• Resolving Combinatorial Ambiguities in Dilepton $t\bar{t}$ Event Topologies with Constrained $M_2$ Variables
• Testing Invisible Momentum Ansatze in Missing Energy Events at the LHC
• YAM2: Yet another library for the $M_2$ variables using sequential quadratic programming
• Sparticle masses from transverse mass kinks at the LHC: the case of Yukawa-unified SUSY GUTs
• Two jets and missing $E_T$ signature to determine the spins of the new particles
• MT2-reconstructed invisible momenta as spin analizers, and an application to top polarization
• Constraining new resonant physics with top spin polarisation information
• The Lightest Massive Invisible Particles at the LHC
• Measuring the Mass of Dark Matter at the LHC
• Could $M_{T2}$ be a singularity variable?