Abstract
The exploration of Higgs boson pair production in the 
decay channel requires the experimental capability to identify and reconstruct several different types of final state objects and to use them for the selection of signal-like events. This in turn requires the reconstruction of the 
and 
decays and the usage of their properties to identify the specific signature of signal events and to reject background ones. These selections and techniques globally constitute the “analysis strategy”, the backbone of the 
search to which this chapter is devoted. After introducing the experimental challenges of the 
decay channel, the discussion focuses on the experimental signature of the signal processes under study and on the main background sources, and on the analysis strategy developed. The analysis strategy description is structured in four main parts, corresponding to trigger requirements, object preselections, event categorization, and definition of the signal regions.
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CMS Collaboration, Search for non-resonant Higgs Boson pair production in the \(\rm {b}\overline{b}\)\(\tau ^{+}\tau ^{-}\) final state, CMS Physics Analysis Summary CMS-PAS-HIG-16-012, CERN (2016), https://cds.cern.ch/record/2139324
CMS Collaboration, Search for resonant Higgs Boson pair production in the \(\rm b\overline{b}\)\(\tau ^{+}\tau ^{-}\) final state, CMS Physics Analysis Summary CMS-PAS-HIG-16-013, CERN (2016), https://cds.cern.ch/record/2139315
CMS Collaboration, Search for non-resonant Higgs Boson pair production in the \(\rm {bb}\)\(\tau \tau \) final state, CMS Analysis Note AN-2015/315, CERN (2015). Access restricted to CMS members, http://cms.cern.ch/iCMS/jsp/db_notes/noteInfo.jsp?cmsnoteid=CMS20AN-2015/315
CMS Collaboration, Search for resonant Higgs Boson pair production in the \(\rm {bb}\)\(\tau \tau \) final state, CMS Analysis Note AN-2016/006, CERN (2016). Access restricted to CMS members, http://cms.cern.ch/iCMS/jsp/db_notes/noteInfo.jsp?cmsnoteid=CMS20AN-2016/006
CMS Collaboration, Search for non-resonant Higgs Boson pair production in the bbtautau final state using 2016 data, CMS Physics Analysis Summary CMS-PAS-HIG-16-028, CERN (2016), https://cds.cern.ch/record/2204934
CMS Collaboration, Search for resonant Higgs Boson pair production in the \(\rm b\overline{b}\)\(\tau ^{+}\tau ^{-}\) final state using 2016 data, CMS Physics Analysis Summary CMS-PAS-HIG-16-029, CERN (2016), https://cds.cern.ch/record/2204936
CMS Collaboration, Search for non-resonant Higgs Boson pair production in the \(\rm {bb}\)\(\tau \tau \) final state with 2016 data, CMS Analysis Note AN-2016/232, CERN (2016). Access restricted to CMS members, http://cms.cern.ch/iCMS/jsp/db_notes/noteInfo.jsp?cmsnoteid=CMS20AN-2016/232
CMS Collaboration, Search for resonant Higgs Boson pair production in the \(\rm {bb}\)\(\tau \tau \) final states with 2016 datasets, CMS Analysis Note AN-2016/186, CERN (2016). Access restricted to CMS members, http://cms.cern.ch/iCMS/jsp/db_notes/noteInfo.jsp?cmsnoteid=CMS20AN-2016/186
CMS Collaboration, Search for pair production of Higgs Bosons in the two tau leptons and two bottom quarks final state using proton-proton collisions at \(\sqrt{s} = 13~\rm TeV\), CMS Physics Analysis Summary CMS-PAS-HIG-17-002, CERN (2017), https://cds.cern.ch/record/2256096
CMS Collaboration, Search for Higgs Boson pair production in the \(\rm {bb}\)\(\tau \tau \) final state with the CMS detector at the LHC, CMS Analysis Note AN-2017/007, CERN (2017). Access restricted to CMS members, http://cms.cern.ch/iCMS/jsp/db_notes/noteInfo.jsp?cmsnoteid=CMS20AN-2017/007
L. Cadamuro, Search and prospects for HH production, CMS Conference Report CMS-CR-2017-126, CERN (2017). To be published in the proceedings of the 52nd Rencontres de Moriond, https://cds.cern.ch/record/2286053
CMS Collaboration, Search for Higgs Boson pair production in events with two bottom quarks and two tau leptons in proton-proton collisions at \(\sqrt{(}s) = 13\) TeV (2017). Submitted to Phys. Lett. B, arXiv:1707.02909
Particle Data Group Collaboration, Review of particle physics. Chin. Phys. C 40, 100001 (2016). https://doi.org/10.1088/1674-1137/40/10/100001
CMS Collaboration, Search for resonant pair production of Higgs Bosons decaying to \(b\bar{b}\) and \(\tau ^+\tau ^-\) in proton-proton collisions at \(\sqrt{s} = 8\) TeV, CMS Physics Analysis Summary CMS-PAS-EXO-15-008, CERN (2015), https://cds.cern.ch/record/2125293
J.H. Friedman, Greedy function approximation: a gradient boosting machine. Ann. Stat. 29, 1189 (2001). https://doi.org/10.1214/aos/1013203451
A. Hoecker et al., TMVA - toolkit for multivariate data analysis. PoS ACAT, 040 (2007), arXiv:physics/0703039
CMS Collaboration, Performance of CMS Muon reconstruction in \(pp\) collision events at \(\sqrt{s}=7\) TeV. JINST 7, P10002 (2012). https://doi.org/10.1088/1748-0221/7/10/P10002, arXiv:1206.4071
CMS Collaboration, Reconstruction and identification of \(\tau \) lepton decays to hadrons and \(\nu _{\tau }\) at CMS. JINST 11, P01019 (2016). https://doi.org/10.1088/1748-0221/11/01/P01019, arXiv:1510.07488
CMS Collaboration, Performance of reconstruction and identification of tau leptons in their decays to hadrons and tau neutrino in LHC Run-2, CMS Physics Analysis Summary CMS-PAS-TAU-16-002, CERN (2016), https://cds.cern.ch/record/2196972
CMS Collaboration, Performance of CMS Muon reconstruction in cosmic-ray events. JINST 5, T03022 (2010). https://doi.org/10.1088/1748-0221/5/03/T03022, arXiv:0911.4994
CMS Collaboration, Search for new physics in same-sign dilepton events in proton-proton collisions at \(\sqrt{s} = 13\,\text{TeV} \). Eur. Phys. J. C 76, 439 (2016). https://doi.org/10.1140/epjc/s10052-016-4261-z, arXiv:1605.03171
CMS Collaboration, Jet algorithms performance in 13 TeV data, CMS Physics Analysis Summary CMS-PAS-JME-16-003, CERN (2017), http://cds.cern.ch/record/2256875
A.J. Larkoski, S. Marzani, G. Soyez, J. Thaler, Soft drop. JHEP 2014, 146 (2014). https://doi.org/10.1007/JHEP05(2014)146, arXiv:1402.2657
J.M. Butterworth, A.R. Davison, M. Rubin, G.P. Salam, Jet substructure as a new Higgs-search channel at the large Hadron collider. Phys. Rev. Lett. 100, 242001 (2008). https://doi.org/10.1103/PhysRevLett.100.242001, arXiv:0802.2470
CMS Collaboration, Identification of b quark jets at the CMS experiment in the LHC run 2, CMS Physics Analysis Summary CMS-PAS-BTV-15-001, CERN (2016), https://cds.cern.ch/record/2138504
L. Bianchini, J. Conway, E.K. Friis, C. Veelken, Reconstruction of the Higgs mass in \(H \rightarrow \tau \tau \) events by dynamical likelihood techniques. J. Phys. Conf. Ser. 513, 022035 (2014). https://doi.org/10.1088/1742-6596/513/2/022035
A. Oliveira, Gravity particles from warped extra dimensions, predictions for LHC (2014), arXiv:1404.0102
CMS Collaboration, Searches for a heavy scalar Boson H decaying to a pair of 125 GeV Higgs Bosons hh or for a heavy pseudoscalar Boson A decaying to Zh, in the final states with \(h \rightarrow \tau \tau \). Phys. Lett. B 755, 217 (2016). https://doi.org/10.1016/j.physletb.2016.01.056, arXiv:1510.01181
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Cadamuro, L. (2018). Event Selection and Categorization. In: Search for Higgs Boson Pair Production in the bb̅ τ+ τ- Decay Channel. Springer Theses. Springer, Cham. https://doi.org/10.1007/978-3-030-04055-0_5
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