Yayınlanmış 1 Ocak 2018 | Sürüm v1
Dergi makalesi Açık

Measurement of jet substructure observables in t(t)over-bar events from proton-proton collisions at root s=13 TeV

Oluşturanlar

  • 1. Yerevan Phys Inst, Yerevan, Armenia
  • 2. Inst Hochenergiephys, Vienna, Austria

Açıklama

A measurement of jet substructure observables is presented using t (t) over bar events in the lepton + jets channel from proton-proton collisions at root s = 13 TeV recorded by the CMS experiment at the LHC, corresponding to an integrated luminosity of 35.9 fb(-1). Multiple jet substructure observables are measured for jets identified as bottom, light-quark, and gluon jets, as well as for inclusive jets (no flavor information). The results are unfolded to the particle level and compared to next-to-leading-order predictions from POWHEG interfaced with the parton shower generators PYTHIA 8 and HERWIG 7, as well as from SHERPA 2 and DIRE 2. Avalue of the strong coupling at the Z boson mass, alpha(S)(m(Z)) = 0.115(-0.013)(+0.015), is extracted from the substructure data at leading-order plus leading-log accuracy.

Dosyalar

bib-5d56ea8c-2dfa-4c17-9a0b-1e40841c5e92.txt

Dosyalar (418 Bytes)

Ad Boyut Hepisini indir
md5:14b64a0c6ebbe2a943c0d7ff63653581
418 Bytes Ön İzleme İndir