Measurement of top quark polarisation in t-channel single top quark production

dc.contributor.author The CMS collaboration,
dc.contributor.author Khachatryan, V.
dc.contributor.author Sirunyan, A. M.
dc.contributor.author Tumasyan, A.
dc.contributor.author Adam, W.
dc.contributor.author Asilar, E.
dc.contributor.author Bergauer, T.
dc.contributor.author Brandstetter, J.
dc.contributor.author Brondolin, E.
dc.contributor.author Dragicevic, M.
dc.contributor.author Erö, J.
dc.contributor.author Flechl, M.
dc.contributor.author Friedl, M.
dc.contributor.author Frühwirth, R.
dc.contributor.author Ghete, V. M.
dc.contributor.author Hartl, C.
dc.contributor.author Hörmann, N.
dc.contributor.author Hrubec, J.
dc.contributor.author Jeitler, M.
dc.contributor.author Knünz, V.
dc.contributor.author König, A.
dc.contributor.author Krammer, M.
dc.contributor.author Krätschmer, I.
dc.contributor.author Liko, D.
dc.contributor.author Matsushita, T.
dc.contributor.author Mikulec, I.
dc.contributor.author Rabady, D.
dc.contributor.author Rahbaran, B.
dc.contributor.author Rohringer, H.
dc.contributor.author Schieck, J.
dc.contributor.author Schöfbeck, R.
dc.contributor.author Strauss, J.
dc.contributor.author Treberer-Treberspurg, W.
dc.contributor.author Waltenberger, W.
dc.contributor.author Wulz, C. E.
dc.contributor.author Mossolov, V.
dc.contributor.author Shumeiko, N.
dc.contributor.author Suarez Gonzalez, J.
dc.contributor.author Alderweireldt, S.
dc.contributor.author Cornelis, T.
dc.contributor.author De Wolf, E. A.
dc.contributor.author Janssen, X.
dc.contributor.author Knutsson, A.
dc.contributor.author Lauwers, J.
dc.contributor.author Luyckx, S.
dc.contributor.author Van De Klundert, M.
dc.contributor.author Van Haevermaet, H.
dc.contributor.author Van Mechelen, P.
dc.contributor.author Van Remortel, N.
dc.contributor.author Van Spilbeeck, A.
dc.contributor.author Abu Zeid, S.
dc.contributor.author Blekman, F.
dc.contributor.author D’Hondt, J.
dc.contributor.author Daci, N.
dc.contributor.author De Bruyn, I.
dc.contributor.author Deroover, K.
dc.contributor.author Heracleous, N.
dc.contributor.author Keaveney, J.
dc.contributor.author Lowette, S.
dc.contributor.author Moreels, L.
dc.contributor.author Olbrechts, A.
dc.contributor.author Python, Q.
dc.contributor.author Strom, D.
dc.contributor.author Tavernier, S.
dc.contributor.author Van Doninck, W.
dc.contributor.author Van Mulders, P.
dc.contributor.author Van Onsem, G. P.
dc.contributor.author Van Parijs, I.
dc.contributor.author Barria, P.
dc.contributor.author Brun, H.
dc.contributor.author Caillol, C.
dc.contributor.author Clerbaux, B.
dc.contributor.author De Lentdecker, G.
dc.contributor.author Fasanella, G.
dc.contributor.author Favart, L.
dc.contributor.author Grebenyuk, A.
dc.contributor.author Karapostoli, G.
dc.contributor.author Lenzi, T.
dc.contributor.author Léonard, A.
dc.contributor.author Maerschalk, T.
dc.contributor.author Marinov, A.
dc.contributor.author Perniè, L.
dc.contributor.author Randle-conde, A.
dc.contributor.author Seva, T.
dc.contributor.author Vander Velde, C.
dc.contributor.author Vanlaer, P.
dc.contributor.author Yonamine, R.
dc.contributor.author Zenoni, F.
dc.contributor.author Zhang, F.
dc.contributor.author Beernaert, K.
dc.contributor.author Benucci, L.
dc.contributor.author Cimmino, A.
dc.contributor.author Crucy, S.
dc.contributor.author Dobur, D.
dc.contributor.author Fagot, A.
dc.contributor.author Garcia, G.
dc.contributor.author Gul, M.
dc.contributor.author Mccartin, J.
dc.contributor.author Ocampo Rios, A. A.
dc.contributor.author Poyraz, D.
dc.date.accessioned 2022-03-27T06:56:01Z
dc.date.available 2022-03-27T06:56:01Z
dc.date.issued 2016-04-01
dc.description.abstract A 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.
dc.identifier.citation Journal of High Energy Physics. v.2016(4)
dc.identifier.issn 11266708
dc.identifier.uri 10.1007/JHEP04(2016)073
dc.identifier.uri http://link.springer.com/10.1007/JHEP04(2016)073
dc.identifier.uri https://dspace.uohyd.ac.in/handle/1/10584
dc.subject Hadron-Hadron scattering (experiments)
dc.subject Top physics
dc.title Measurement of top quark polarisation in t-channel single top quark production
dc.type Journal. Article
dspace.entity.type
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