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Phys."],"published-print":{"date-parts":[[2014,1]]},"abstract":"<jats:title>A<jats:sc>bstract<\/jats:sc><\/jats:title><jats:p>The discovery by the ATLAS and CMS experiments of a new boson with mass around 125 GeV and with measured properties compatible with those of a Standard-Model Higgs boson, coupled with the absence of discoveries of phenomena beyond the Standard Model at the TeV scale, has triggered interest in ideas for future Higgs factories. A new circular e<jats:sup>+<\/jats:sup>e<jats:sup>\u2212<\/jats:sup>collider hosted in a 80 to 100 km tunnel, TLEP, is among the most attractive solutions proposed so far. It has a clean experimental environment, produces high luminosity for top-quark, Higgs boson, W and Z studies, accommodates multiple detectors, and can reach energies up to the<jats:inline-formula><jats:tex-math>$$ \\mathrm{t}\\overline{\\mathrm{t}} $$<\/jats:tex-math><\/jats:inline-formula>threshold and beyond. It will enable measurements of the Higgs boson properties and of Electroweak Symmetry-Breaking (EWSB) parameters with unequalled precision, offering exploration of physics beyond the Standard Model in the multi-TeV range. Moreover, being the natural precursor of the VHE-LHC, a 100 TeV hadron machine in the same tunnel, it builds up a long-term vision for particle physics. Altogether, the combination of TLEP and the VHE-LHC offers, for a great cost effectiveness, the best precision and the best search reach of all options presently on the market. This paper presents a first appraisal of the salient features of the TLEP physics potential, to serve as a baseline for a more extensive design study.<\/jats:p>","DOI":"10.1007\/jhep01(2014)164","type":"journal-article","created":{"date-parts":[[2014,2,1]],"date-time":"2014-02-01T02:21:48Z","timestamp":1391221308000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":251,"title":["First look at the physics case of TLEP"],"prefix":"10.1007","volume":"2014","author":[{"name":"The TLEP Design Study Working Group","sequence":"first","affiliation":[]},{"given":"M.","family":"Bicer","sequence":"additional","affiliation":[]},{"given":"H.","family":"Duran Yildiz","sequence":"additional","affiliation":[]},{"given":"I.","family":"Yildiz","sequence":"additional","affiliation":[]},{"given":"G.","family":"Coignet","sequence":"additional","affiliation":[]},{"given":"M.","family":"Delmastro","sequence":"additional","affiliation":[]},{"given":"T.","family":"Alexopoulos","sequence":"additional","affiliation":[]},{"given":"C","family":"Grojean","sequence":"additional","affiliation":[]},{"given":"S.","family":"Antusch","sequence":"additional","affiliation":[]},{"given":"T.","family":"Sen","sequence":"additional","affiliation":[]},{"given":"H.-J.","family":"He","sequence":"additional","affiliation":[]},{"given":"K.","family":"Potamianos","sequence":"additional","affiliation":[]},{"given":"S.","family":"Haug","sequence":"additional","affiliation":[]},{"given":"A.","family":"Moreno","sequence":"additional","affiliation":[]},{"given":"A.","family":"Heister","sequence":"additional","affiliation":[]},{"given":"V.","family":"Sanz","sequence":"additional","affiliation":[]},{"given":"G.","family":"Gomez-Ceballos","sequence":"additional","affiliation":[]},{"given":"M.","family":"Klute","sequence":"additional","affiliation":[]},{"given":"M.","family":"Zanetti","sequence":"additional","affiliation":[]},{"given":"L.-T.","family":"Wang","sequence":"additional","affiliation":[]},{"given":"M.","family":"Dam","sequence":"additional","affiliation":[]},{"given":"C.","family":"Boehm","sequence":"additional","affiliation":[]},{"given":"N.","family":"Glover","sequence":"additional","affiliation":[]},{"given":"F.","family":"Krauss","sequence":"additional","affiliation":[]},{"given":"A.","family":"Lenz","sequence":"additional","affiliation":[]},{"given":"M.","family":"Syphers","sequence":"additional","affiliation":[]},{"given":"C.","family":"Leonidopoulos","sequence":"additional","affiliation":[]},{"given":"V.","family":"Ciulli","sequence":"additional","affiliation":[]},{"given":"P.","family":"Lenzi","sequence":"additional","affiliation":[]},{"given":"G.","family":"Sguazzoni","sequence":"additional","affiliation":[]},{"given":"M.","family":"Antonelli","sequence":"additional","affiliation":[]},{"given":"M.","family":"Boscolo","sequence":"additional","affiliation":[]},{"given":"U.","family":"Dosselli","sequence":"additional","affiliation":[]},{"given":"O.","family":"Frasciello","sequence":"additional","affiliation":[]},{"given":"C.","family":"Milardi","sequence":"additional","affiliation":[]},{"given":"G.","family":"Venanzoni","sequence":"additional","affiliation":[]},{"given":"M.","family":"Zobov","sequence":"additional","affiliation":[]},{"given":"J.","family":"van der Bij","sequence":"additional","affiliation":[]},{"given":"M.","family":"de Gruttola","sequence":"additional","affiliation":[]},{"given":"D.-W.","family":"Kim","sequence":"additional","affiliation":[]},{"given":"M.","family":"Bachtis","sequence":"additional","affiliation":[]},{"given":"A.","family":"Butterworth","sequence":"additional","affiliation":[]},{"given":"C.","family":"Bernet","sequence":"additional","affiliation":[]},{"given":"C.","family":"Botta","sequence":"additional","affiliation":[]},{"given":"F.","family":"Carminati","sequence":"additional","affiliation":[]},{"given":"A.","family":"David","sequence":"additional","affiliation":[]},{"given":"L.","family":"Deniau","sequence":"additional","affiliation":[]},{"given":"D.","family":"d\u2019Enterria","sequence":"additional","affiliation":[]},{"given":"G.","family":"Ganis","sequence":"additional","affiliation":[]},{"given":"B.","family":"Goddard","sequence":"additional","affiliation":[]},{"given":"G.","family":"Giudice","sequence":"additional","affiliation":[]},{"given":"P.","family":"Janot","sequence":"additional","affiliation":[]},{"given":"J. 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