Abstract
The tau lepton and its reconstruction at CMS are briefly described. This is followed by a summary of the searches for a standard model Higgs boson and neutral Higgs bosons from the minimal supersymmetric extension of the standard model decaying into pairs of tau leptons performed by the CMS Collaboration. The data samples used in these searches were collected during the first running period of the LHC and contain 4.9 fb−1 at \(\sqrt {s}=7\,\text {TeV}\) and 19.7 fb−1 at \(\sqrt {s}=8\,\text {TeV}\).
Highlights
The tau lepton and its reconstruction at CMS are briefly described. This is followed by a summary of the searches for a standard model Higgs boson and neutral Higgs bosons from the minimal supersymmetric extension of the standard model decaying into pairs of tau leptons performed by the CMS Collaboration
The search for a Higgs boson decaying into a pair of tau leptons [8] is conducted targeting all tau decay channels individually for Higgs boson production via gluon fusion as well as vector boson fusion (VBF)
The minimal supersymmetric extension of the standard model (MSSM) predicts two scalar doublets resulting in five physical Higgs bosons: three neutral (h, H and A) and two charged (H±) ones [9, 10]
Summary
The new boson with a mass near 125 GeV discovered by the ATLAS and CMS collaborations [6, 7] fits all SM predictions for a Higgs boson tested so far. These include transverse momenta (pT) of the leptons, their pseudorapidity (η), as well as the (relative) isolation of each lepton. Following this basic selection, topological criteria are applied to reduce specific backgrounds (e.g., W+jets and tt) involving missing transverse energy, and the number of identified b-quark initiated jets. Since the neutrinos from tau decays can not be measured by the detector, a maximum likelihood technique is used to reconstruct the full invariant di-tau mass This method takes both lepton momenta, the missing transverse energy and its covariance matrix into account [8]. Ττ κf CMS, 4.9 fb-1 at 7 TeV, 19.7 fb-1 at 8 TeV μτ , h eτh, τhτh, eμ SM H(125 GeV)→ττ Data - background Bkg. uncertainty
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