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dc.contributor.authorKhachatryan, Vardan
dc.contributor.authorSirunyan, A.M.
dc.contributor.authorBaarmand, Marc M.
dc.contributor.authorBhopatkar, Vallary
dc.contributor.authorColafranceschi, Stefano
dc.contributor.authorHohlmann, Marcus
dc.contributor.authorKalakhety, Himali
dc.contributor.authorNoonan, Daniel
dc.contributor.authorRoy, Tuhin S.
dc.contributor.authorYumiceva, Francisco
dc.date.accessioned2016-09-22T21:25:54Z
dc.date.available2016-09-22T21:25:54Z
dc.date.issued2016-04-13
dc.identifier.citationThe CMS collaboration, Khachatryan, V., Sirunyan, A. M., Tumasyan, A., Adam, W., Asilar, E., . . . Woods, N. (2016). Measurement of top quark polarisation in t-channel single top quark production. Journal of High Energy Physics, 2016(4) doi:10.1007/JHEP04(2016)073en_US
dc.identifier.urihttp://hdl.handle.net/11141/1055
dc.description.abstractA first measurement of the top quark spin asymmetry, sensitive to the top quark polarisation, in t-channel single top quark production is presented. It is based on a sample of pp collisions at a centre-of-mass energy of 8 TeV corresponding to an integrated luminosity of 19.7 fb−1. A high-purity sample of t-channel single top quark events with an isolated muon is selected. Signal and background components are estimated using a fit to data. A differential cross section measurement, corrected for detector effects, of an angular observable sensitive to the top quark polarisation is performed. The differential distribution is used to extract a top quark spin asymmetry of 0.26±0.03(stat)±0.10(syst), which is compatible with a p-value of 4.6% with the standard model prediction of 0.44.en_US
dc.language.isoen_USen_US
dc.rightsJHEP is an open-access journal funded by SCOAP3 and licensed under CC BY 4.0en_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en_US
dc.titleMeasurement of top quark polarisation in t-channel single top quark productionen_US
dc.typeArticleen_US
dc.identifier.doi10.1007/JHEP04(2016)


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JHEP is an open-access journal funded by SCOAP3 and licensed under CC BY 4.0
Except where otherwise noted, this item's license is described as JHEP is an open-access journal funded by SCOAP3 and licensed under CC BY 4.0