Top Quark Mass Measurement in the Lepton + Jets Channel Using a Matrix Element Method and \textit{in situ} Jet Energy Calibration - INSPIRE

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Top Quark Mass Measurement in the Lepton + Jets Channel Using a Matrix Element Method and \textit{in situ} Jet Energy Calibration

CDF

Collaboration

Oct, 2010

7 pages

Published in:

Phys.Rev.Lett. 105 (2010) 252001

e-Print:

1010.4582 [hep-ex]

DOI:

10.1103/PhysRevLett.105.252001

PDG:

{{\mathit t}}

-Quark Mass (Direct Measurements)

Report number:

FERMILAB-PUB-10-427-E

Experiments:

FNAL-E-0830

View in:

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Abstract: (arXiv)

A precision measurement of the top quark mass m_t is obtained using a sample of ttbar events from ppbar collisions at the Fermilab Tevatron with the CDF II detector. Selected events require an electron or muon, large missing transverse energy, and exactly four high-energy jets, at least one of which is tagged as coming from a b quark. A likelihood is calculated using a matrix element method with quasi-Monte Carlo integration taking into account finite detector resolution and jet mass effects. The event likelihood is a function of m_t and a parameter DJES to calibrate the jet energy scale /in situ/. Using a total of 1087 events, a value of m_t = 173.0 +/- 1.2 GeV/c^2 is measured.

Note:

7 pages, 3 figures. Edited in response to referee comments and resubmitted to Phys. Rev. Lett

14.65.Ha
top: mass: measured
jet: mass
jet: energy
transverse energy: missing-energy
Batavia TEVATRON Coll
CDF
experimental results
anti-p p: interaction
top: pair production

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