Results 1 to 10 of about 466,224 (256)

Search for pair production of up-type vector-like quarks and for four-top-quark events in final states with multiple b-jets with the ATLAS detector [PDF]

open access: yesJournal of High Energy Physics, 2018
A search for pair production of up-type vector-like quarks (T ) with a significant branching ratio into a top quark and either a Standard Model Higgs boson or a Z boson is presented.
M. Aaboud   +499 more
semanticscholar   +1 more source

Several Effects Unexplained by QCD

open access: yesUniverse, 2018
Several new experimental discoveries in high energy proton interactions, yet unexplained by QCD, are discussed in the paper. The increase of the cross sections with increasing energy from ISR to LHC, the correlation between it and the behavior of the ...
Igor M. Dremin
doaj   +1 more source

Parton splitting scales of reclustered large-radius jets in high-energy nuclear collisions

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
We carry out the first theoretical investigation on yields and the hardest parton splitting of large-radius jets reclustered from small radius ( $$R=0.2$$ R = 0.2 ) anti- $$k_t$$ k t jets in Pb + Pb collisions, and confront them with the recent ATLAS ...
Shan-Liang Zhang   +2 more
doaj   +1 more source

Measurements of the Production, Decay and Properties of the Top Quark: A Review [PDF]

open access: yes, 2012
With the full Tevatron Run II and early LHC data samples, the opportunity for furthering our understanding of the properties of the top quark has never been more promising.
A. Abulencia   +117 more
core   +2 more sources

Toward the determination of heavy-quark transport coefficients in quark-gluon plasma [PDF]

open access: yesPhysical Review C, 2018
Several transport models have been employed in recent years to analyze heavy-flavor meson spectra in high-energy heavy-ion collisions. Heavy-quark transport coefficients extracted from these models with their default parameters vary, however, by up to a ...
S. Cao   +18 more
semanticscholar   +1 more source

Jet shape and redistribution of the lost energy from jets in Pb + Pb collisions at the LHC in a multiphase transport model

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
Jet-medium interaction involves two important effects: jet energy loss and medium response. The search for jet-induced medium excitations is one of the hot topics in jet quenching study in relativistic nuclear collisions.
Ao Luo   +4 more
doaj   +1 more source

Meson Mass Decomposition [PDF]

open access: yes, 2014
Hadron masses can be decomposed as a sum of components which are defined through hadronic matrix elements of QCD operators. The components consist of the quark mass term, the quark energy term, the glue energy term and the trace anomaly term.
Jian-Ping Ma   +7 more
core   +4 more sources

Rotating quark-gluon plasma in relativistic heavy ion collisions [PDF]

open access: yes, 2016
We study the rotational collective motion of the quark-gluon plasma in relativistic heavy-ion collisions using the widely adopted a multiphase transport (AMPT) model.
Yin Jiang, Zi-Wei Lin, J. Liao
semanticscholar   +1 more source

Quark scalar, axial, and pseudoscalar charges in the Schwinger-Dyson formalism [PDF]

open access: yes, 2014
We calculate the scalar, axial, and pseudoscalar charges of the quark in the Schwinger-Dyson formalism of Landau gauge QCD. It is found that the dressed quark scalar density of the valence quark is significantly enhanced against the bare quark ...
Doi, Takahiro M.   +3 more
core   +2 more sources

Phase transition from hadronic matter to quark matter [PDF]

open access: yes, 2006
We study the phase transition from nuclear matter to quark matter within the SU(3) quark mean field model and NJL model. The SU(3) quark mean field model is used to give the equation of state for nuclear matter, while the equation of state for color ...
A. G. Williams   +4 more
core   +2 more sources

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