Mass determination in sequential particle decay chains

Abstract

A simple method is proposed for determining the masses of new particles in collider events containing a pair of decay chains (not necessarily identical) of the form Z -> Y+1, Y -> X+2, X -> N+3, where 1,2 and 3 are visible but N is not. Initial study of a possible supersymmetric case suggests that the method can determine the four unknown masses in effectively identical chains with good accuracy from samples of a few tens of events.

11 pages, 3 figures. Mention of application to shorter decay chains and references added

References in corpus (42)

• HERWIG 6.5: an event generator for Hadron Emission Reactions With Interfering Gluons (including supersymmetric processes)
• Measuring masses of semi-invisibly decaying particles pair produced at hadron colliders
• The Snowmass Points and Slopes: Benchmarks for SUSY Searches
• m_T2 : the truth behind the glamour
• Precision SUSY Measurements at LHC
• Measurements of Masses in SUGRA Models at LHC
• Gluino Stransverse Mass
• Measuring superparticle masses at hadron collider using the transverse mass kink
• Measuring sparticle masses in non-universal string inspired models at the LHC
• Using Subsystem MT2 for Complete Mass Determinations in Decay Chains with Missing Energy at Hadron Colliders
• Minimal Kinematic Constraints and MT2
• On measuring the masses of pair-produced semi-invisibly decaying particles at hadron colliders
• Model-Independent Jets plus Missing Energy Searches
• Measurement of SUSY masses via cascade decays for SPS 1a
• Weighing Wimps with Kinks at Colliders: Invisible Particle Mass Measurements from Endpoints
• Implementation of supersymmetric processes in the HERWIG event generator
• Mass Determination in SUSY-like Events with Missing Energy
• Accurate Mass Determinations in Decay Chains with Missing Energy
• A New SUSY mass reconstruction method at the CERN LHC
• Measurement of the Gluino Mass via Cascade Decays for SPS 1a
• M_T2-assisted on-shell reconstruction of missing momenta and its application to spin measurement at the LHC
• Invariant mass distributions in cascade decays
• MTGEN : Mass scale measurements in pair-production at colliders
• Transverse Observables and Mass Determination at Hadron Colliders
• Mass Determination of New States at Hadron Colliders
• \sqrt{s}_min: a global inclusive variable for determining the mass scale of new physics in events with missing energy at hadron colliders
• Measurements in SUGRA Models with Large tan beta at LHC
• Measuring the SUSY Mass Scale at the LHC
• Inclusive transverse mass analysis for squark and gluino mass determination
• Using kinematic boundary lines for particle mass measurements and disambiguation in SUSY-like events with missing energy
• Handling jets + missing E_T channel using inclusive mT2
• The Precision Determination of Invisible-Particle Masses at the LHC
• A short comparison between m_T2 and m_CT
• Accurate Mass Determinations in Decay Chains with Missing Energy: II
• A hybrid method for determining particle masses at the Large Hadron Collider with fully identified cascade decays
• Constrained invariant mass distributions in cascade decays. The shape of the "$m_{qll}$-threshold" and similar distributions
• Supersymmetric particle mass measurement with invariant mass correlations
• Mass Determination in Cascade Decays Using Shape Formulas
• Precision Determination of Invisible-Particle Masses at the CERN LHC: II
• Effects of QCD radiation on inclusive variables for determining the scale of new physics at hadron colliders
• On Measuring Split-SUSY Neutralino and Chargino Masses at the LHC
• A Simple Mass Reconstruction Technique for SUSY particles at the LHC

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