Results 21 to 30 of about 19,862 (236)
Hyperfine splittings of heavy quarkonium hybrids [PDF]
Physical Review D, 2023 In the framework of the Born-Oppenheimer Effective Field Theory, the hyperfine structure of heavy quarkonium hybrids at leading order in the 1/m Q expansion is determined by two potentials.
J. Soto, S. Tomàs Valls
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The complex heavy quarkonium potential with the Gribov–Zwanziger action [PDF]
The European Physical Journal C, 2023 Gribov–Zwanziger prescription in Yang–Mills theory improves the infrared dynamics. In this work, we study the static potential of a heavy quark-antiquark pair with the HTL resummed perturbation method within the Gribov–Zwanziger approach at finite ...
Manashi Debnath, R. Ghosh, Najmul Haque
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Quarkonium spin alignment in a vortical medium [PDF]
Physical Review D, 2023 We use a potential model to investigate the phenomenology of quarkonium in a thermal rotating medium, where vorticity and spin density are not necessarily in equilibrium.
Paulo Henrique De Moura +2 more
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Impact of heavy quark and quarkonium data on nuclear gluon PDFs [PDF]
Physical Review D, 2022 A clear understanding of nuclear parton distribution functions (nPDFs) plays a crucial role in the interpretation of collider data taken at the Relativistic Heavy Ion Collider (RHIC), the Large Hadron Collider (LHC) and in the near future at the Electron-
P. Duwentäster +9 more
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Heavy quarkonium dynamics at next-to-leading order in the binding energy over temperature [PDF]
Journal of High Energy Physics, 2022 Using the potential non-relativistic quantum chromodynamics (pNRQCD) effective field theory, we derive a Lindblad equation for the evolution of the heavy-quarkonium reduced density matrix that is accurate to next-to-leading order (NLO) in the ratio of ...
N. Brambilla +6 more
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Entropic force and real-time dynamics of holographic quarkonium in a magnetic field [PDF]
Physical Review D, 2022 We continue the study of a recently constructed holographic QCD model supplemented with magnetic field. We consider the holographic dual of a quark, anti-quark pair and investigate its entropy beyond the deconfinement phase transition in terms of ...
Siddhi Swarupa Jena +3 more
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Quarkonium spectroscopy of the linear plus modified Yukawa potential [PDF]
Physica Scripta, 2022 In this article, the linear plus modified Yukawa potential (LIMYP) is used as the quark-antiquark interaction potential for the approximate analytical bound state solution of the Klein-Gordon equation in three-dimensional space.
K. R. Purohit, Pooja Jakhad, A. Rai
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Two-loop master integrals for pseudo-scalar quarkonium and leptonium production and decay [PDF]
Journal of High Energy Physics, 2022 We compute the master integrals relevant for the two-loop corrections to pseudo-scalar quarkonium and leptonium production and decay. We present both analytic and high-precision numerical results.
S. Abreu +3 more
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QCD analysis of near-threshold photon-proton production of heavy quarkonium [PDF]
Physical Review D, 2021 The near-threshold photo or electroproduction of heavy vector quarkonium off the proton is studied in quantum chromodynamics. Similar to the high-energy limit, the production amplitude can be factorized in terms of gluonic generalized parton ...
Yuxun Guo, X. Ji, Yizhuang Liu
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Indirect constraints on lepton-flavor-violating quarkonium decays [PDF]
Physical Review D, 2022 Within an effective-field-theory framework, we present a model-independent analysis of the potential of discovering new physics by searching for lepton flavour violation in heavy quarkonium decays and, more in general, we study the phenomenology of lepton ...
L. Calibbi +3 more
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