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HSG5 Status Update: Analysis and Statistical Treatment Progress

This document outlines the current status of the HSG5 analysis group, including recent developments, approvals, and ongoing work. Highlights include the approval closure on Wednesday last week, comments on the circulated draft, upcoming readings, and presentations. Significant inputs for statistical treatment and analysis are being prepared, along with discussions on boosted analyses and systematic uncertainties. Collaborative efforts are ongoing with multiple experts contributing to handle various aspects of jet energy scale, b-tagging, and paper descriptions.

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HSG5 Status Update: Analysis and Statistical Treatment Progress

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  1. HSG5 Status Paper/note circulation: • Approval closure on Wednesday last week • Circulated on Thursday • Currently getting comments • Reading of draft 1on 24th April • Presentation by Giacinto • Inputs for combination ready • Need to complete description of statistical treatment in support material Internal Note • Note started, but only skeleton: • ATL-COM-2012-416 • ttHworking for 2011 analysis in mid May • In parallel to vector-like quarks • Request E.Board? N.Wermes, V.Martin, T.Golling, M.Corradi for existing VLQ ed.board • Boosted H->bb ? • Pushing to get this going faster… • CMS will have analysis for ICHEP • Boosted Z->bb too far away – MC description very difficult (PyvsHwg, LO vs NLO, etc) • But trigger for 2012 ok for now • Walking technicolor analysis could be done quickly from ZH analysis • But may be better in H->ZZ->llqq 2012 MC: • … ongoing … • Backgrounds need Z->νν • Dibosons seem to small (and need Z->νν) • Will try to move as much as possible to AFII • But boosted analysis may suffer from this CP involvement • Trigger – several points of contact: • ννbb: Yoshikazu Nagai (CPPM) and Kenji Kiuchi (Tsukuba) • Boosted Z->bb: Luke Lambourne (UCL) • VBF: Eric Ouellette • Jets: • Major systematic uncertainty • Need to: • Move to new JES • Use b-jet semileptonic correction • b-JES?... presentation by D.L.Mateosin HSG5 • Possible involvement in work on b-jet resolution • B-tagging: • Major systematic uncertainty: • Improvement expected from top b-tagging analysis – unknown timescale • Possible involvement through new method using tt (C.Schiavi) Higgs subconveners meeting - 16/4/2012

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