Skip to main content

Results and Discussion

  • Chapter
  • First Online:
Spin Correlations in tt Events from pp Collisions

Part of the book series: Springer Theses ((Springer Theses))

  • 240 Accesses

Abstract

This chapter presents the results of the \(t\bar{t}\) spin correlation analysis. First, the fit results for the eight individual channels are presented for the down-type quark as well as for the \(b\)-quark analyser. The individual channels are fitted without nuisance parameters. As a next step, the channels are combined for both spin analysers and a full combination is performed.

This is a preview of subscription content, log in via an institution to check access.

Access this chapter

Chapter
USD 29.95
Price excludes VAT (USA)
  • Available as PDF
  • Read on any device
  • Instant download
  • Own it forever
eBook
USD 84.99
Price excludes VAT (USA)
  • Available as EPUB and PDF
  • Read on any device
  • Instant download
  • Own it forever
Hardcover Book
USD 109.99
Price excludes VAT (USA)
  • Durable hardcover edition
  • Dispatched in 3 to 5 business days
  • Free shipping worldwide - see info

Tax calculation will be finalised at checkout

Purchases are for personal use only

Institutional subscriptions

Notes

  1. 1.

    A NPs is constrained if its posterior width in smaller than one.

References

  1. G. Cowan et al., Asymptotic formulae for likelihood-based tests of new physics. Eur. Phys. J. C71, 1554 (2011). doi:10.1140/epjc/s10052-011-1554-0

    ADS  Google Scholar 

  2. CMS Collaboration, Measurement of spin correlations in ttbar production, CMS-PAS-TOP-12-004

    Google Scholar 

  3. C.M.S. Collaboration, Measurements of \(t\bar{t}\) spin correlations and top-quark polarization using dilepton final states in pp collisions at \(\sqrt{s} = 7\) TeV. Phys. Rev. Lett. 112, 182001 (2014)

    Article  ADS  Google Scholar 

  4. ATLAS Collaboration, Measurements of spin correlation in top-antitop quark events from proton-proton collisions at \(\sqrt{s}=7\) TeV using the ATLAS detector. Phys. Rev. D90(11), 112016 (2014)

    Google Scholar 

  5. ATLAS Collaboration, Measurement of top-quark pair differential cross-sections in the \(l\)+jets channel in \(pp\) collisions at \(\sqrt{s}=7\) TeV using the ATLAS detector, ATLAS-CONF-2013-099

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Boris Lemmer .

Rights and permissions

Reprints and permissions

Copyright information

© 2015 Springer International Publishing Switzerland

About this chapter

Cite this chapter

Lemmer, B. (2015). Results and Discussion. In: Spin Correlations in tt Events from pp Collisions. Springer Theses. Springer, Cham. https://doi.org/10.1007/978-3-319-18932-1_8

Download citation

Publish with us

Policies and ethics