Results 81 to 90 of about 222,223 (188)

Evaluation of the two lightest quark masses

open access: yesÂderna Fìzika ta Energetika, 2017
Simple relations between the masses of the two lightest up and down quarks were obtained on the basis of the simple physically based model compatible with the present-day theory of strong interactions, i.e. with quantum chromodynamics.
V. A. Babenko, N. M. Petrov
doaj  

On the nature of the N* and Δ resonances via coupled-channel dynamics [PDF]

open access: yesEPJ Web of Conferences
This talk focuses on a recent work aiming at determining the composition of certain N* and Δ resonances, i.e. whether they are compact states formed directly by quarks and gluons, or composite generated from the mesonbaryon interaction.
Wang Yu-Fei
doaj   +1 more source

Prompt and non-prompt J/ψ production cross sections at midrapidity in proton-proton collisions at s $$ \sqrt{\mathrm{s}} $$ = 5.02 and 13 TeV

open access: yesJournal of High Energy Physics, 2022
The production of J/ψ is measured at midrapidity (|y| < 0.9) in proton-proton collisions at s $$ \sqrt{s} $$ = 5.02 and 13 TeV, through the dielectron decay channel, using the ALICE detector at the Large Hadron Collider.
The ALICE collaboration   +1026 more
doaj   +1 more source

Neutrinoloser Doppelbetazerfall: Der Gral der Neutrinophysik

open access: yesPhysik in unserer Zeit, EarlyView.
Die Entschlüsselung der Neutrinoeigenschaften ist auch siebzig Jahre nach ihrer Entdeckung noch nicht abgeschlossen. Es wäre eine spektakuläre Entdeckung, sollten Neutrinos ihre eigenen Antiteilchen sein und sich folglich als Majorana‐Teilchen entpuppen. Mehrere Experimente untersuchen diese Möglichkeit.ZusammenfassungNeutrinos sind besondere Teilchen,
Bernhard Schwingenheuer
wiley   +1 more source

Production of pions, kaons, and protons as a function of the relative transverse activity classifier in pp collisions at s $$ \sqrt{s} $$ = 13 TeV

open access: yesJournal of High Energy Physics, 2023
The production of π ± , K ± , and p ¯ p $$ \left(\overline{\textrm{p}}\right)\textrm{p} $$ is measured in pp collisions at s $$ \sqrt{s} $$ = 13 TeV in different topological regions of the events.
The ALICE collaboration   +1037 more
doaj   +1 more source

Compressible bag model and the phase structure

open access: yes, 2002
The phase structure of hadrons and quark-gluon plasma is investigated by two types of equation of hadron state, namely ideal hadron gas model and the compressible bag model.
Kagiyama, Shigenori   +5 more
core   +2 more sources

Forward rapidity J/ψ production as a function of charged-particle multiplicity in pp collisions at s $$ \sqrt{s} $$ = 5.02 and 13 TeV

open access: yesJournal of High Energy Physics, 2022
The production of J/ψ is measured as a function of charged-particle multiplicity at forward rapidity in proton-proton (pp) collisions at center-of-mass energies s $$ \sqrt{s} $$ = 5.02 and 13 TeV.
The ALICE collaboration   +1026 more
doaj   +1 more source

Nuclear Physics in the Era of Quantum Computing and Quantum Machine Learning

open access: yesAdvanced Quantum Technologies, EarlyView.
The use of QML in the realm of nuclear physics at low energy is almost nonexistent. Three examples of the use of quantum computing and quantum machine in nuclear physics are presented: the determination of the phase/shape in nuclear models, the calculation of the ground state energy, and the identification of particles in nuclear physics experiments ...
José‐Enrique García‐Ramos   +4 more
wiley   +1 more source

Hadrons in medium

open access: yesPramana, 2006
In these lectures I first give a motivation for investigations of in-medium properties of hadrons. I discuss the relevant symmetries of QCD and how they might affect the observed hadron properties. I then discuss at length the observable consequences of in-medium changes of hadronic properties in reactions with elementary probes, and in particular ...
openaire   +4 more sources

High energy hadron-hadron collisions [PDF]

open access: yes, 1990
Results of a study on high energy collision with the geometrical model are summarized in three parts: (i) the elastic hadron-hadron collision, (ii) the inelastic hadron-hadron collision, and (iii) the e{sup +}e{sup {minus}} annihilation. For elastic collisions, a simple expression for the proton matter distribution is proposed which fits well the ...
openaire   +5 more sources

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