dc.contributor.author | Rosendahl, Peter Lundgaard | eng |
dc.contributor.author | Burgess, Thomas | eng |
dc.contributor.author | Stugu, Bjarne | eng |
dc.date.accessioned | 2013-03-05T11:08:46Z | |
dc.date.available | 2013-03-05T11:08:46Z | |
dc.date.issued | 2012-01-11 | eng |
dc.Published | Journal of High Energy Physics 2012:43 | eng |
dc.identifier.issn | 1029-8479 | en_US |
dc.identifier.uri | https://hdl.handle.net/1956/6380 | |
dc.description.abstract | In 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.language.iso | eng | eng |
dc.publisher | Springer Verlag | en_US |
dc.relation.ispartof | <a href="http://hdl.handle.net/1956/5195" target="blank">Searching for the Higgs Boson in Pairs of Tau Leptons in Data from the ATLAS Experiment</a> | en_US |
dc.rights | Attribution CC BY | eng |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | eng |
dc.title | A method to estimate the boson mass and to optimise sensitivity to helicity correlations of tau+tau final states | en_US |
dc.type | Peer reviewed | |
dc.type | Journal article | |
dc.description.version | publishedVersion | en_US |
dc.identifier.doi | https://doi.org/10.1007/jhep01(2012)043 | |
dc.identifier.cristin | 927660 | |