Results 31 to 40 of about 327,367 (299)

Explaining the Many Threshold Structures in the Heavy-Quark Hadron Spectrum.

open access: yesPhysical Review Letters, 2021
Tremendous progress has been made experimentally in the hadron spectrum containing heavy quarks in the last two decades. It is surprising that many resonant structures are around thresholds of a pair of heavy hadrons.
Xiang-Kun Dong, F. Guo, B. Zou
semanticscholar   +1 more source

d⁎(2380) dibaryon from lattice QCD

open access: yesPhysics Letters B, 2020
The ΔΔ dibaryon resonance d⁎(2380) with (JP,I)=(3+,0) is studied theoretically on the basis of the 3-flavor lattice QCD simulation with heavy pion masses (mπ=679,841 and 1018 MeV). By using the HAL QCD method, the central Δ-Δ potential in the S37 channel
Shinya Gongyo   +8 more
doaj   +1 more source

Quantum simulations of hadron dynamics in the Schwinger model using 112 qubits [PDF]

open access: yesPhysical Review D
Hadron wavepackets are prepared and time evolved in the Schwinger model using 112 qubits of IBM's 133-qubit Heron quantum computer ibm_torino. The initialization of the hadron wavepacket is performed in two steps. First, the vacuum is prepared across the
R. Farrell   +3 more
semanticscholar   +1 more source

Total top-quark pair-production cross section at hadron colliders through O(αS(4)). [PDF]

open access: yesPhysical Review Letters, 2013
We compute the next-to-next-to-leading order (NNLO) quantum chromodynamics (QCD) correction to the total cross section for the reaction gg → tt + X. Together with the partonic channels we computed previously, the result derived in this Letter completes ...
M. Czakon, P. Fiedler, A. Mitov
semanticscholar   +1 more source

Hadron melting and QCD thermodynamics [PDF]

open access: yes, 2013
We study in this paper mechanisms of hadron melting based on the spectral representation of hadronic quantum channels, and examine the hadron width dependence of the pressure.
Jakovac, A.
core   +2 more sources

Resonances in heavy meson–heavy baryon coupled-channel interactions

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
The interactions of $${\bar{D}}^{(*)} \Lambda _c - {\bar{D}}^{(*)}\Sigma _c^{(*)}$$ D ¯ ( ∗ ) Λ c - D ¯ ( ∗ ) Σ c ( ∗ ) are studied within the framework of a dynamical coupled-channel approach.
Zheng-Li Wang   +4 more
doaj   +1 more source

On the scalar $$\varvec{\pi K}$$ π K form factor beyond the elastic region

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
Pion–kaon ( $$\pi K$$ π K ) pairs occur frequently as final states in heavy-particle decays. A consistent treatment of $$\pi K$$ π K scattering and production amplitudes over a wide energy range is therefore mandatory for multiple applications: in ...
L. von Detten   +4 more
doaj   +1 more source

Low energy hadron physics in holographic QCD [PDF]

open access: yes, 2004
We present a holographic dual of four-dimensional, large N_c QCD with massless flavors. This model is constructed by placing N_f probe D8-branes into a D4 background, where supersymmetry is completely broken.
T. Sakai, S. Sugimoto
semanticscholar   +1 more source

Properties of the Spin-flip Amplitude of Hadron Elastic Scattering and Possible Polarization Effects at RHIC [PDF]

open access: yes, 2002
With relation to the RHIC spin program we research the polarization effects in elastic proton-proton scattering at small momentum transfer and in the diffraction dip region.
Selyugin, O. V.
core   +3 more sources

Signatures of Quark-Hadron Phase Transitions in General-Relativistic Neutron-Star Mergers. [PDF]

open access: yesPhysical Review Letters, 2018
Merging binaries of neutron-stars are not only strong sources of gravitational waves, but also have the potential of revealing states of matter at densities and temperatures not accessible in laboratories.
E. Most   +6 more
semanticscholar   +1 more source

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