Results 41 to 50 of about 166,021,812 (222)

Improved hadronic measurements and spectral sums on the lattice [PDF]

open access: yes, 2008
In this thesis we address several topics of lattice QCD. As a first project we perform calculations of ground and excited states of light mesons. Especially the extraction of the excited states turns out be very difficult.
Hagen, Christian
core   +1 more source

λ and ρ Regge trajectories for the pentaquark $${P}_{cc\overline{c}bb }$$ in the diquark-triquark picture

open access: yesJournal of High Energy Physics
We propose the Regge trajectory relations for the fully heavy pentaquark $${P}_{cc\overline{c}bb }$$ utilizing both diquark and triquark Regge trajectory relations.
He Song   +3 more
doaj   +1 more source

Unintegrated Gluon Distributions as Probability Densities for QCD Dynamical Entropy

open access: yesAstronomische Nachrichten, EarlyView.
ABSTRACT We present a systematic procedure for constructing normalized transverse momentum probability distributions from phenomenological unintegrated gluon distributions (UGDs). These distributions provide the probabilistic foundation of the QCD dynamical entropy formalism and can be employed in the evaluation of other statistical observables.
G. S. Ramos, Magno V. T. Machado
wiley   +1 more source

χ c2 tensor meson transition form factors in the light front approach

open access: yesJournal of High Energy Physics
We continue our work on the light-front formulation of quarkonium γ ∗ γ transition form factors, extending the formalism to J PC = 2++ tensor meson states.
Izabela Babiarz   +3 more
doaj   +1 more source

Generalized Beth–Uhlenbeck Entropy Formula From the Φ‐Derivable Approach

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT We derive a generalized Beth–Uhlenbeck formula for the entropy of a dense fermion system with strong two‐particle correlations, including scattering states and bound states. We work within the Φ‐derivable approach to the thermodynamic potential.
David Blaschke, Gerd Röpke, Gordon Baym
wiley   +1 more source

Deciphering the Properties of Hot and Dense Matter with Hadron-hadron Correlations [PDF]

open access: yesNuclear Physics A, 2007
Two classes of jet correlations in hot and dense matter are explored. Correlations between very high transverse momentum hadrons within a jet sample the gluon density of the medium, where, the minimal modification on the same side as the trigger is consistent with the picture and parameters of partonic energy loss.
openaire   +2 more sources

Radiative transitions of χ cJ → ψγ and χ bj → Υγ

open access: yesJournal of High Energy Physics
In the framework of instantaneous Bethe-Salpeter equation, according to the J PC of quarkonia, we find that their wave functions all contain multiple partial waves, rather than pure waves.
Su-Yan Pei   +3 more
doaj   +1 more source

Perturbative calculations of gravitational form factors at large momentum transfer

open access: yesJournal of High Energy Physics, 2022
We perform a perturbative QCD analysis of the gravitational form factors (GFFs) of nucleon at large momentum transfer. We derive the explicit factorization formula of the GFFs in terms of twist-3 and twist-4 light-cone distribution amplitudes of nucleon.
Xuan-Bo Tong, Jian-Ping Ma, Feng Yuan
doaj   +1 more source

Zero‐Dimensional Perovskite‐Inspired Scintillator‐Based High‐Radiation‐Resistant Radionuclide Analyzer Free From Irreversible Degradation

open access: yesLaser &Photonics Reviews, EarlyView.
A zero‐dimensional perovskite‐inspired scintillator (Cs3Cu2I5) is developed as a high‐radiation‐resilient radionuclide analyzer capable of operating under extreme γ‐ray environments. Even after 200 kGy irradiation, the device fully restores its original spectroscopic performance through simple thermal annealing, demonstrating intrinsic defect ...
Jiwon Seo   +9 more
wiley   +1 more source

Properties of b-flavored hadrons [PDF]

open access: yes, 1983
Experimental progress in the study of b-flavored hadrons is reviewed. The observation of the B meson, properties of hadronic B decays, semi-leptonic B decays, and the B lifetime are discussed.
Jaros, J. A.
core  

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