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Measurement of the Inclusive Leptonic Asymmetry in Top-Quark Pairs that Decay to Two Charged Leptons at CDF.

DE141151742

Publication Date	2014
Personal Author	Aaltonen, T.; Amerio, S.; Amidei, D.; Anastassov, A.; Annovi, A.; Antos, J.; Apollinari, G.; Toback, D.; Tokar, S.; Tollefson, K.
Page Count	8
Abstract	We measure the inclusive forward-backward asymmetry of the charged-lepton pseudorapidities from top-quark pairs produced in proton-antiproton collisions, and decaying to final states that contain two charged leptons (electrons or muons), using data collected with the Collider Detector at Fermilab. With an integrated luminosity of 9.1 fb (sub -1), the leptonic forward-backward asymmetry, A(sub l)(sup FB), is measured to be 0.072 plus or minus 0.060 and the leptonic pair forward-backward asymmetry, A(sub ll)(sup FB), is measured to be 0.076 plus or minus 0.082, compared with the standard model predictions of A(sub l)(sup FB)=0.038 plus or minus 0.003 and A(sub ll)(sup FB) FB = 0.038 0.003 and A(sub ll)(sup FB)=0.48 plus or minus 0.004, respectively. Additionally, we combine the A(sub l(sup FB)) result with a previous determination from a final state with a single lepton and hadronic jets and obtain A(sub l(sup FB)=0.020(sub plus 0.028 minus 0.026)).
Keywords	Leptons Quarks Asymmetry Decay Electrons Fermilab tevatron Proton-antiproton interactions Measurement
Source Agency	Technical Information Center Oak Ridge Tennessee
NTIS Subject Category	46 - Physics
Corporate Authors	Fermi National Accelerator Lab., Batavia, IL.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	201503
Contract Number	DE-AC02-07CH11359

Measurement of the Inclusive Leptonic Asymmetry in Top-Quark Pairs that Decay to Two Charged Leptons at CDF.

Measurement of the Inclusive Leptonic Asymmetry in Top-Quark Pairs that Decay to Two Charged Leptons at CDF.
DE141151742

Publication Date	2014
Personal Author	Aaltonen, T.; Amerio, S.; Amidei, D.; Anastassov, A.; Annovi, A.; Antos, J.; Apollinari, G.; Toback, D.; Tokar, S.; Tollefson, K.
Page Count	8
Abstract	We measure the inclusive forward-backward asymmetry of the charged-lepton pseudorapidities from top-quark pairs produced in proton-antiproton collisions, and decaying to final states that contain two charged leptons (electrons or muons), using data collected with the Collider Detector at Fermilab. With an integrated luminosity of 9.1 fb (sub -1), the leptonic forward-backward asymmetry, A(sub l)(sup FB), is measured to be 0.072 plus or minus 0.060 and the leptonic pair forward-backward asymmetry, A(sub ll)(sup FB), is measured to be 0.076 plus or minus 0.082, compared with the standard model predictions of A(sub l)(sup FB)=0.038 plus or minus 0.003 and A(sub ll)(sup FB) FB = 0.038 0.003 and A(sub ll)(sup FB)=0.48 plus or minus 0.004, respectively. Additionally, we combine the A(sub l(sup FB)) result with a previous determination from a final state with a single lepton and hadronic jets and obtain A(sub l(sup FB)=0.020(sub plus 0.028 minus 0.026)).
Keywords	Leptons Quarks Asymmetry Decay Electrons Fermilab tevatron Proton-antiproton interactions Measurement
Source Agency	Technical Information Center Oak Ridge Tennessee
NTIS Subject Category	46 - Physics
Corporate Authors	Fermi National Accelerator Lab., Batavia, IL.; Department of Energy, Washington, DC.
Supplemental Notes	Sponsored by Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	201503
Contract Number	DE-AC02-07CH11359