KIT | KIT-Bibliothek | Impressum
Open Access Logo
§
Volltext
URN: urn:nbn:de:swb:90-677737

Precise measurement of the top quark mass in dilepton decays using optimized neutrino weighting

Abazov, V. M.; Abbott, B.; Acharya, B. S.; Adams, M.; Adams, T.; Agnew, J. P.; Alexeev, G. D.; Alkhazov, G.; Alton, A.; Askew, A.; Atkins, S.; Augsten, K.; Avila, C.; Badaud, F.; Bagby, L.; Baldin, B.; Bandurin, D. V.; Banerjee, S.; Barberis, E.; Baringer, P.; ... mehr

Abstract:
We measure the top quark mass in dilepton final states of t¯t events in p¯pcollisions at √s = 1.96 TeV, using data corresponding to an integrated luminosity of 9.7 fb−1 at the Fermilab Tevatron Collider. The analysis features a comprehensive optimization of the neutrino weighting method to minimize the statistical uncertainties. We also improve the calibration of jet energies using the calibration determined in t¯t →lepton + jets events, which reduces the otherwise limiting systematic uncertainty from the jet energy scale. The measured top quark mass is mt = 173.32 ±1.36(stat) ±0.85(syst) GeV.


Zugehörige Institution(en) am KIT Steinbuch Centre for Computing (SCC)
Publikationstyp Zeitschriftenaufsatz
Jahr 2016
Sprache Englisch
Identifikator ISSN: 0370-2693, 1873-2445
KITopen ID: 1000067773
Erschienen in Physics letters / B
Band 752
Seiten 18-26
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft KITopen Landing Page