Top-Quark p(T)-Spectra at LHC and Flavor Independence of z-Scaling

0477388 - ÚJF 2018 RIV FR eng C - Conference Paper (international conference)
Tokarev, M. V. - Zborovský, Imrich
Top-Quark p(T)-Spectra at LHC and Flavor Independence of z-Scaling.
EPJ Web of Conferences. Vol. 141. Les Ulis: E D P Sciences, 2017 - (Yook, I.), č. článku 02006. ISSN 2100-014X.
[46th International Symposium on Multiparticle Dynamics (ISMD). Jeju Island (KR), 29.08.2016-02.09.2016]
R&D Projects: GA MŠMT(CZ) LG15052
Institutional support: RVO:61389005
Keywords : LHC * pp collisions
OECD category: Particles and field physics

New results of analysis of top-quark differential cross sections obtained by the CMS and ATLAS Collaborations in pp collisions at the LHC in the framework of z-scaling approach are presented. The spectra are measured over a wide range of collision energy root s = 7, 8, 13 TeV and transverse momentum p(T) = 30-1000 GeV/c of top-quark using leptonic and jet decay modes. The LHC data on transverse momentum of the top-quark spectra are compared with the Tevatron data obtained by the Dempty set Collaboration in p (p) over bar collisions at root s = 1.96 GeV. Flavour independence of the scaling function psi(z) in pp and p (p) over bar interactions over a wide collision energy range root s = 19 - 13000 GeV is verified. This property of psi(z) was found for different hadrons from pi-meson up to. particle. The flavour independence of psi(z) is used as indication on self-similarity of to p-quark production. A tendency to saturation of psi(z) at low z for top-quark is demonstrated. We anticipate that data on low-and high-p(T) inclusive spectra of top-quark production at LHC energies could be of interest for verification of the self-similarity over a wide range of masses and different flavour content of produced particles.
Permanent Link: http://hdl.handle.net/11104/0273747