Results 101 to 110 of about 1,179 (216)

Properties of hadrons from a non-perturbative approach [PDF]

, 2016
The composition and structure of matter remains a fundamental problem in physics. The closest theory that tries to deal with this problem is the Standard Model of particle physics, which encodes the electromagnetic, weak and strong interactions.
Carrillo Serrano, Manuel Eduardo
core  

Hyperon semileptonic decays in QCD sum rules

Journal of High Energy Physics
We investigate the hyperon semileptonic decays within the framework of QCD sum rules. The flavor SU(3) symmetry breaking effects are analyzed via the relevant form factors and corresponding branching fractions.
Sheng-Qi Zhang, Xuan-Heng Zhang, Cong-Feng Qiao   +2 more
doaj   +1 more source

Inclusive properties of hadronic final states at HERA

Journal of Physics: Conference Series, 2008
Recent results from the H1 and ZEUS collaborations using the hadronic final state in high Q2 Deep-Inelastic Scattering to investigate QCD are presented. Measurements of azimuthal asymmetries, event shapes and the charged particle scaled momentum spectra are compared with next-to-leading order perturbative QCD predictions and with Monte Carlo models.
openaire   +3 more sources

Iso-vector form factors of the delta and nucleon in QCD sum rules

, 2012
Form factors are important non-perturbative properties of hadrons. They give information about the internal structure of the hadrons. In this work, iso-vector axial-vector and iso-vector tensor form factors of the nucleon and the iso-vector axial-vector ...
A. Ozpineci, Özpineci, Altuğ
core   +1 more source

Gravitational form factors of the baryon octet in holographic QCD

Journal of High Energy Physics
The gravitational form factors (GFFs) of the baryon octet, including hyperons, are investigated in a bottom-up holographic QCD model that explicitly incorporates the SU(3) flavor symmetry breaking through the strange quark mass.
Zhibo Liu, Hiroaki Nakajima, Hiroaki Abuki, Akira Watanabe   +3 more
doaj   +1 more source

Lattice QCD in Background Fields [PDF]

, 2009
Electromagnetic properties of hadrons can be computed by lattice simulations of QCD in background fields. We demonstrate new techniques for the investigation of charged hadron properties in electric fields.
William Detmold, Brian Tiburzi, Andre Walker-Loud
core  

Mechanical properties of proton using flavor-decomposed gravitational form factors

Journal of High Energy Physics
We investigate the mechanical properties of the proton by extracting its flavor-decomposed gravitational form factors (GFFs) using Light-Cone QCD sum rules (LCSR).
Zeinab Dehghan, F. Almaksusi, K. Azizi
doaj   +1 more source

b hadron production, spectroscopy and properties at CMS

, 2019
Precise measurements of production and properties of hadrons containing a b quark, performed using data collected by the CMS experiment at the LHC, are reported. These are important to investigate underlying mechanisms in QCD describing heavy quarks. The
Argirò, Stefano
core   +1 more source

On the Energy Budget of Quarks and Hadrons, Their Inconspicuous “Strong Charge”, and the Impact of Coulomb Repulsion on the Charged Ground States

Particles
We review and meta-analyze particle data and properties of hadrons with measured rest masses. The results of our study are summarized as follows. (1) The strong-force suppression of the repulsive Coulomb forces between quarks is sufficient to explain the
Dimitris M. Christodoulou, Demosthenes Kazanas   +1 more
doaj   +1 more source

CP Violation: Differing Binding Energy Levels of Quarks and Antiquarks, and Their Transitions in Λ-Baryons and B-Mesons

Foundations
We consider spontaneous quark transitions between the Λ0 baryon and its resonant states, and (anti)quark transitions between the neutral kaon K0 and the two heavy ηq-mesons (q = c, b).
Dimitris M. Christodoulou, Demosthenes Kazanas   +1 more
doaj   +1 more source