Measurement of Jet Substructure Observables in t¯t Events From Proton-proton Collisions at ?s=13??TeV

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Küçük Resim

Tarih

2018

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

American Physical Society

Erişim Hakkı

Özet

A measurement of jet substructure observables is presented using t¯t events in the lepton+jetschannel from proton-proton collisions at ?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 PYTHİA 8 and HERWİG 7, as well as from SHERPA 2 and DİRE 2. A value of the strong coupling at the Z boson mass, ?S(mZ)=0.115+0.015?0.013, is extracted from the substructure data at leading-order plus leading-log accuracy.

Açıklama

Anahtar Kelimeler

TOP QUARK, Hadron colliders, Particle decays

Kaynak

WoS Q Değeri

Q1

Scopus Q Değeri

Q1

Cilt

Sayı

Künye

PHYSICAL REVIEW D 98, 092014 (2018)