Results 61 to 70 of about 1,011 (161)

Learning holographic QCD with unflavored meson spectra

open access: yesJournal of High Energy Physics
We develop a data-driven neural network framework to reconstruct the five-dimensional background geometry, the dilaton potential, and the chiral-symmetry-breaking scalar potential of holographic QCD from hadron mass spectra. Framed as an inverse problem,
Mathew Thomas Arun, Ritik Pal
doaj   +1 more source

Probing transverse momentum dependent structures with azimuthal dependence of energy correlators

open access: yesJournal of High Energy Physics
We study the azimuthal angle dependence of the energy-energy correlators $$\langle \mathcal{E}\left({\widehat{n}}_{1}\right)\mathcal{E}\left({\widehat{n}}_{2}\right)\rangle $$ in the back-to-back region for e + e − annihilation and deep inelastic ...
Zhong-Bo Kang   +3 more
doaj   +1 more source

Properties and decays of b-hadrons at D0.

open access: yes, 2012
The Tevatron, with $p\bar{p}$ collisions at $\sqrt{s}=$ \unit{1.96}{\TeV}, can produce all flavours of $b$ hadrons and allows several studies in the $B$ physics sector. This paper presents a selection of recent results on heavy hadron physics using data up to 10.4 fb$^{-1}$ of integrated luminosity collected with the D\O\ detector.
openaire   +2 more sources

Bypassing spin-analyzing power dependence for quantum entanglement at colliders: a case study of Λ Λ ¯ $$ \Lambda \overline{\Lambda} $$

open access: yesJournal of High Energy Physics
We study, as a concrete case study using the Λ → p π − Λ ¯ → p ¯ π + $$ \Lambda \left(\to p{\pi}^{-}\right)\overline{\Lambda}\left(\to \overline{p}{\pi}^{+}\right) $$ system, whether quantum entanglement in fermion pairs produced at colliders can be ...
Junle Pei   +4 more
doaj   +1 more source

The electromagnetic form factors of heavy-light pseudo-scalar and vector mesons

open access: yesJournal of High Energy Physics
We systematically investigate the electromagnetic form factors of heavy-light pseudo-scalar and vector mesons within the Dyson-Schwinger/Bethe-Salpeter equations framework for the first time.
Yin-Zhen Xu
doaj   +1 more source

Inclusive properties of hadronic final states at HERA

open access: yesJournal 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

Assessing the impact of fitting methodology at aN3LO with FPPDF: an open source tool for extracting Parton distribution functions in the Hessian approach

open access: yesJournal of High Energy Physics
We present a new public code, FPPDF, to perform global fits of parton distribution functions (PDFs). The fitting methodology follows that implemented by the MSHT collaboration, namely applying a fixed polynomial parameterisation of the PDFs and Hessian ...
Juan M. Cruz-Martinez   +2 more
doaj   +1 more source

Mechanical properties of proton using flavor-decomposed gravitational form factors

open access: yesJournal 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

Revising the mass of light hybrid mesons: NLO QCD sum rules point to ϕ(2170) as a prime candidate

open access: yesJournal of High Energy Physics
We present a comprehensive next-to-leading order (NLO) QCD sum rule analysis for light hybrid mesons with J PC = 1 −− , incorporating condensates up to dimension-8 and NLO corrections to the perturbative, gluon condensate, and four-quark condensate ...
Shuang-Hong Li   +3 more
doaj   +1 more source

Vector charmonium(-like) states in the energy range of 4.1–4.6 GeV

open access: yesJournal of High Energy Physics
The spectrum of vector charmonium(-like) states in the 4.1–4.6 GeV energy region exhibits a long-standing tension between inclusive and exclusive measurements.
Xiang-Kun Dong   +7 more
doaj   +1 more source

Home - About - Disclaimer - Privacy