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dc.contributor.authorRosendahl, Peter Lundgaardeng
dc.contributor.authorBurgess, Thomaseng
dc.contributor.authorStugu, Bjarneeng
dc.PublishedJournal of High Energy Physics 2012:43eng
dc.description.abstractIn proton-proton collisions at LHC energies, Z0 and low mass Higgs bosons would be produced with high and predominantly longitudinal boost with respect to the beam axis. This note describes a new analysis tool devised to handle this situation in cases when such bosons decay to a pair of τ -leptons. The tool reconstructs the rest frame of the τ+τ− pair by finding the boost that minimises the acollinearity between the visible τ decay products. In most cases this gives a reasonable approximation to the rest frame of the decaying boson. It is shown how the reconstructed rest frame allows for a new method of mass estimation. Also a considerable gain in sensitivity to helicity correlations is obtained by analysing the τ -jets in the reconstructed frame instead of using the laboratory momenta and energies, particularly when both τ -leptons decay hadronically.en_US
dc.publisherSpringer Verlagen_US
dc.relation.ispartof<a href="" target="blank">Searching for the Higgs Boson in Pairs of Tau Leptons in Data from the ATLAS Experiment</a>en_US
dc.rightsAttribution CC BYeng
dc.titleA method to estimate the boson mass and to optimise sensitivity to helicity correlations of tau+tau final statesen_US
dc.typePeer reviewed
dc.typeJournal article

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