Measurement of spin correlation in $t\bar{t}$ production using dilepton final states - INSPIRE

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Measurement of spin correlation in $t\bar{t}$ production using dilepton final states

D0

Collaboration

•

Victor Mukhamedovich Abazov
(
- Dubna, JINR
)

Mar, 2011

10 pages

Published in:

Phys.Lett.B 702 (2011) 16-23

e-Print:

1103.1871 [hep-ex]

DOI:

10.1016/j.physletb.2011.05.077

PDG: Spin Correlation in

{{\mathit t}}{{\overline{\mathit t}}}

{{\mathit p}}{{\overline{\mathit p}}}

Report number:

FERMILAB-PUB-11-052-E

Experiments:

FNAL-E-0823

View in:

reference search76 citations

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Abstract: (Elsevier)

We measure the correlation between the spin of the top quark and the spin of the anti-top quark in tt¯→W+bW−b¯→ℓ+νbℓ−ν¯b¯ final states produced in pp¯ collisions at a center of mass energy s=1.96 TeV , where ℓ is an electron or muon. The data correspond to an integrated luminosity of 5.4 fb −1 and were collected with the D0 detector at the Fermilab Tevatron collider. The correlation is extracted from the angles of the two leptons in the t and t¯ rest frames, yielding a correlation strength C=0.10−0.45+0.45 , in agreement with the NLO QCD prediction within two standard deviations, but also in agreement with the no correlation hypothesis.

Note:

Long author list - awaiting processing •
10 pages, 3 figures, submitted to PLB

14.65.Ha
12.38.Qk
13.85.Qk
Top quark
Spin
QCD
spin: correlation: measured
top: pair production
dilepton: final state
Batavia TEVATRON Coll

References(39)

Figures(0)

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