Measurement of the mass difference between top quark and antiquark in pp collisions at sqrt(s) = 8 TeV
- Chatrchyan, S.
- Besançon, M.
- Couderc, F.
- Dejardin, M.
- Denegri, D.
- Fabbro, B.
- Faure, J.L.
- Ferri, F.
- Ganjour, S.
- Givernaud, A.
- Gras, P.
- Monchenault, G. Hamel De
- Jarry, P.
- Locci, E.
- Malcles, J.
- Nayak, A.
- Rander, J.
- Rosowsky, A.
- Titov, M.
- Baffioni, S.
- Beaudette, F.
- Busson, P.
- Charlot, C.
- Daci, N.
- Dahms, T.
- Dalchenko, M.
- Dobrzynski, L.
- Florent, A.
- Cassagnac, R. Granier De
- Haguenauer, M.
- Miné, P.
- Mironov, C.
- Naranjo, I.N.
- Nguyen, M.
- Ochando, C.
- Paganini, P.
- Sabes, D.
- Salerno, R.
- Sirois, Y.
- Veelken, C.
- Yilmaz, Y.
- Zabi, A.
- Agram, J.-L.
- Andrea, J.
- Bloch, D.
- Brom, J.-M.
- Chabert, E.C.
- Collard, C.
- Conte, E.
- Drouhin, F.
- Fontaine, J.-C.
- Gelé, D.
- Goerlach, U.
- Goetzmann, C.
- Juillot, P.
- Bihan, A.-C. Le
- Hove, P. Van
- Gadrat, S.
- Beauceron, S.
- Beaupere, N.
- Boudoul, G.
- Brochet, S.
- Chasserat, J.
- Chierici, R.
- Contardo, D.
- Depasse, P.
- Mamouni, H. El
- Fan, J.
- Fay, J.
- Gascon, S.
- Gouzevitch, M.
- Ille, B.
- Kurca, T.
- Lethuillier, M.
- Mirabito, L.
- Perries, S.
- Alvarez, J.D. Ruiz
- Sgandurra, L.
- Sordini, V.
- Donckt, M. Vander
- Verdier, P.
- Viret, S.
- Xiao, H.
DOIAbstract
Submitted to Phys. Lett. B. All figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-12-031/index.html ; see paper for full list of authorsInternational audienceThe invariance of the standard model (SM) under the CPT transformation predicts equality of particle and antiparticle masses. This prediction is tested by measuring the mass difference between the top quark and antiquark (Delta m[t] = m[t] - m[t-bar]) that are produced in pp collisions at a center-of-mass energy of 8 TeV, using events with a muon or an electron and at least four jets in the final state. The analysis is based on data corresponding to an integrated luminosity of 19.6 inverse-femtobarns collected by the CMS exper...
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