{ "id": "1701.03115", "version": "v1", "published": "2017-01-11T19:00:27.000Z", "updated": "2017-01-11T19:00:27.000Z", "title": "The Z boson spin observables as messengers of new physics", "authors": [ "J. A. Aguilar-Saavedra", "J. Bernabéu", "V. A. Mitsou", "A. Segarra" ], "comment": "LaTeX 13 pages", "categories": [ "hep-ph", "hep-ex" ], "abstract": "We demonstrate that the 8 multipole parameters describing the spin state of the $Z$ boson are able to disentangle known $Z$ production mechanisms and signals from new physics at the LHC. They can be extracted from appropriate asymmetries in the angular distribution of lepton pairs from the $Z$ boson decay. The power of this analysis is illustrated by (i) the production of $Z$ boson plus jets; (ii) $Z$ boson plus missing transverse energy; (iii) $W$ and $Z$ bosons originating from the two-body decay of a heavy resonance.", "revisions": [ { "version": "v1", "updated": "2017-01-11T19:00:27.000Z" } ], "analyses": { "keywords": [ "boson spin observables", "messengers", "boson plus missing transverse energy", "boson plus jets", "two-body decay" ], "note": { "typesetting": "LaTeX", "pages": 13, "language": "en", "license": "arXiv", "status": "editable" } } }