Applications of template morphing W mass measurements LEP

Applications of template morphing § W mass measurements (LEP, Tevatron) § Systematical uncertainties from shape distortions. • T. Junk’s MCLimit calculator at Tevatron. § Toy MC generation • For fully generated Monte Carlo samples, only a limited set of model points generated Ø Eg. Higgs masses, SUSY points § This talk: implementation and study of new, simple morphing technique. Max Baak, CERN 1

Extraction of SUSY parameters § SUSY parameters sofar extracted by studying (set of) kinematical edge measurements • Relations work best for Linear Collider (w/ small JES and LES uncertainties. ) • Interpretation of measurements assumes (very) specific SUSY particle decay chains. § Inclusive measurements: shapes not studied for SUSY parameter constraints – only normalizations are used. • Difficult to invert shape information into SUSY parameters § Ideal problem for template morphing! Max Baak, CERN 2

Prospects § Extend morph to 4 fit parameters (m. Sugra), now 2. § Include cross-section information in SUSY parameters fit. § SUSY parameters fit is complementary to TILES method, developed by CERN-Susy group. § Take background subtracted, binned New Physics sample, as obtained from TILES, and extract SUSY parameters w/ Poly. Morph. § Roo. Poly. Morph designed to make heavy use of latest Roo. Fit caching technology (Roo. Workspaces) § Should be easy to extend morph upto >1000 templates, w/ several observables. Max Baak, CERN 3