# Measurement of the top quark mass in $p \bar{p}$ collisions using events with two leptons

### Description

We present a measurement of the top quark mass (m{sub t}) in p{bar p} collisions at {radical}s = 1.96 TeV using t{bar t} events with two leptons (ee, e{mu} or {mu}{mu}) in the final state in 4.3 fb{sup -1} of data collected with the D0 detector at the Fermilab Tevatron collider. We analyze the kinematically underconstrained dilepton events by integrating over the neutrino rapidity distributions. We reduce the dominant systematic uncertainties from jet energy calibration using a correction obtained from t{bar t} {yields} {ell} + jets events. We also correct jets in simulated events to replicate the quark flavor dependence ... continued below

5 pages

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## What

### Description

We present a measurement of the top quark mass (m{sub t}) in p{bar p} collisions at {radical}s = 1.96 TeV using t{bar t} events with two leptons (ee, e{mu} or {mu}{mu}) in the final state in 4.3 fb{sup -1} of data collected with the D0 detector at the Fermilab Tevatron collider. We analyze the kinematically underconstrained dilepton events by integrating over the neutrino rapidity distributions. We reduce the dominant systematic uncertainties from jet energy calibration using a correction obtained from t{bar t} {yields} {ell} + jets events. We also correct jets in simulated events to replicate the quark flavor dependence of the jet response in data. In combination with our previous analysis, we measure m{sub t} = 174.0 {+-} 2.4(stat) {+-} 1.4(syst) GeV.

5 pages

### Source

• Journal Name: Submitted to Phys. Rev. Lett.

### Identifier

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• Report No.: FERMILAB-PUB-12-020-E
• Grant Number: AC02-07CH11359
• Office of Scientific & Technical Information Report Number: 1034128

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## When

### Creation Date

• January 1, 2012

### Added to The UNT Digital Library

• May 19, 2016, 3:16 p.m.

### Description Last Updated

• Aug. 30, 2016, 3:30 p.m.

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Abazov, Victor Mukhamedovich; /Dubna, JINR; Abbott, Braden Keim; U., /Oklahoma; Acharya, Bannanje Sripath; Inst., /Tata et al. Measurement of the top quark mass in $p \bar{p}$ collisions using events with two leptons, article, January 1, 2012; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc843008/: accessed January 21, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.