Search for violation of Lorentz invariance in top quark pair production and decay - INSPIRE

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Search for violation of Lorentz invariance in top quark pair production and decay

D0

Collaboration

Mar, 2012

7 pages

Published in:

Phys.Rev.Lett. 108 (2012) 261603

e-Print:

1203.6106 [hep-ex]

DOI:

10.1103/PhysRevLett.108.261603

Report number:

FERMILAB-PUB-12-085-E,
IUHET-565

Experiments:

FNAL-E-0823

View in:

reference search67 citations

Citations per year

Abstract: (arXiv)

Using data collected with the D0 detector at the Fermilab Tevatron Collider, corresponding to 5.3 fb

^{-1}

of integrated luminosity, we search for violation of Lorentz invariance by examining the \ttbar production cross section in lepton+jets final states. We quantify this violation using the standard-model extension framework, which predicts a dependence of the \ttbar production cross section on sidereal time as the orientation of the detector changes with the rotation of the Earth. Within this framework, we measure components of the matrices

(c_Q)_{\mu\nu 33}

and

(c_U)_{\mu\nu 33}

containing coefficients used to parametrize violation of Lorentz invariance in the top quark sector. Within uncertainties, these coefficients are found to be consistent with zero.

Note:

7 pages, 2 figures, submitted to Phys. Rev. Lett

11.30.Cp
13.85.Qk
14.65.Ha
violation: Lorentz
top: pair production
top: decay
Batavia TEVATRON Coll
anti-p p: interaction
final state: ((n)jet lepton)
channel cross section: time dependence

References(18)

Figures(3)

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