Measurement of the top quark mass using single top quark events in proton-proton collisions at s=8 TeV

A measurement of the top quark mass is reported in events containing a single top quark produced via the electroweak t channel. The analysis is performed using data from proton-proton collisions collected with the CMS detector at the LHC at a centre-of-mass energy of 8 TeV, corresponding to an integ...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Veröffentlicht in:	The European physical journal. C, Particles and fields Particles and fields, 2017-05, Vol.77 (5), p.1-25
Hauptverfasser:	Marinov, A., Rodozov, M., Chen, G., Puljak, I., Kadija, K., Tiko, A., Stahl Leiton, A. G., Pequegnot, A. L., Sabes, D., Meyer, A., Mukherjee, S., Pook, T., Rieger, M., Sonnenschein, L., Lohmann, W., Marchesini, I., Fink, S., Goldenzweig, P., Rabbertz, K., Topsis-Giotis, I., Tziaferi, E., Bahinipati, S., Chawla, R., Mittal, M., Nandan, S., Paktinat Mehdiabadi, S., Cavallo, F. R., Tosi, N., Calvelli, V., Ragazzi, S., Bacchetta, N., Carlin, R., Salvini, P., Ciangottini, D., Saha, A., Lomtadze, T., Argiro, S., Biino, C., Demaria, N., Casarsa, M., Zanetti, A., Lee, J. S. H., Mejia Guisao, J., Uribe Estrada, C., Bialkowska, H., Gallinaro, M., Malakhov, A., Kuznetsova, E., Kodolova, O., Devetak, D., Alcaraz Maestre, J., Escalante Del Valle, A., Fouz, M. C., Puerta Pelayo, J., Romero, L., Gonzalez Caballero, I., Dobson, M., Pandolfi, F., Pauss, F., Canelli, M. F., Adiguzel, A., Polatoz, A., Harper, S., Bainbridge, R., Davies, G., Zou, D., Kwok, K. H. M., Sagir, S., Tos, K., Wei, H., Wood, J., Amin, N., Dishaw, A., George, C., Golf, F., Banerjee, S., Lykken, J., Rakness, G., Vidal, R., Markowitz, P., Gauthier, L., Zhang, J., Gritsan, A. V., Sanders, S., Ivanov, A., Skhirtladze, N., Eno, S. C., Krajczar, K., Lee, Y.-J., Luckey, P. D., Nourbakhsh, S., Tambe, N., Mucia, N., Duh, Y. t., Walker, M., Libeiro, T., Gurrola, A., Maguire, C., Belknap, D. A., Savin, A.
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomy Astrophysics and Cosmology Elementary Particles Hadrons Heavy Ions Large Hadron Collider Luminosity Mass distribution Measurement Science and Instrumentation Neutrinos Nuclear Energy Nuclear Physics Pair production Particle collisions Physics Physics and Astronomy Protons Quantum Field Theories Quantum Field Theory Quarks Regular Article - Experimental Physics Scientists Solenoids String Theory Uncertainty
Online-Zugang:	Volltext
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A measurement of the top quark mass is reported in events containing a single top quark produced via the electroweak t channel. The analysis is performed using data from proton-proton collisions collected with the CMS detector at the LHC at a centre-of-mass energy of 8 TeV, corresponding to an integrated luminosity of 19.7 fb - 1 . Top quark candidates are reconstructed from their decay to a W boson and a b quark, with the W boson decaying leptonically to a muon and a neutrino. The final state signature and kinematic properties of single top quark events in the t channel are used to enhance the purity of the sample, suppressing the contribution from top quark pair production. A fit to the invariant mass distribution of reconstructed top quark candidates yields a value of the top quark mass of 172.95 ± 0.77 (stat) - 0.93 + 0.97 (syst) GeV . This result is in agreement with the current world average, and represents the first measurement of the top quark mass in event topologies not dominated by top quark pair production, therefore contributing to future averages with partially uncorrelated systematic uncertainties and a largely uncorrelated statistical uncertainty.
ISSN:	1434-6044 1434-6052
DOI:	10.1140/epjc/s10052-017-4912-8