skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Top Quark Mass Measurement Using a Matrix Element Method with Quasi-Monte Carlo Integration

Conference ·
OSTI ID:940087

We report an updated measurement of the top quark mass obtained from ppbar collisions at sqrt(s) = 1.96 TeV at the Fermilab Tevatron using the CDF II detector. Our measurement uses a matrix element integration method to obtain a signal likelihood, with a neural network used to identify background events and a likelihood cut applied to reduce the effect of badly reconstructed events. We use a 2.7 fb{sup -1} sample and observe 422 events passing all of our cuts. We find m{sub t} = 172.2 +/- 1.0 (stat.) +/- 0.9 (JES) +/- 1.0 (syst.) GeV/c{sup 2}, or m{sub t} = 172.2 +/- 1.7 (total) GeV/c{sup 2}.

Research Organization:
Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-07CH11359
OSTI ID:
940087
Report Number(s):
FERMILAB-CONF-08-468-E; arXiv eprint number arXiv:0810.3739; TRN: US0806997
Resource Relation:
Conference: Presented at 34th International Conference on High Energy Physics (ICHEP 2008), Philadelphia, Pennsylvania, 30 Jul - 5 Aug 2008
Country of Publication:
United States
Language:
English