Results 31 to 40 of about 1,795,647 (249)

A new picture of quantum tunneling in the real-time path integral from Lefschetz thimble calculations

open access: yesJournal of High Energy Physics, 2023
It is well known that quantum tunneling can be described by instantons in the imaginary-time path integral formalism. However, its description in the real-time path integral formalism has been elusive. Here we establish a statement that quantum tunneling
Jun Nishimura   +2 more
doaj   +1 more source

Instanton-induced effects in interquark forces, light-front wave functions and formfactors [PDF]

open access: yesEPJ Web of Conferences, 2022
Exclusive processes are traditionally described by perturbative hard blocks and “distribution amplitudes" (DAs), matrix elements of operators of various chiral structure and twist. One paper (with I.Zahed) calculate instanton contribution to hard blocks,
Shuryak Edward
doaj   +1 more source

Fluctuations of conserved charges in hydrodynamics and molecular dynamics [PDF]

open access: yesEPJ Web of Conferences, 2023
We present an overview of recent theoretical results on fluctuations of conserved charges in heavy-ion collisions obtained in relativistic hydrodynamics and molecular dynamics frameworks.
Vovchenko Volodymyr
doaj   +1 more source

Nuclear Symmetry Energy Extracted from Laboratory Experiments [PDF]

open access: yesNuclear Physics News, Vol. 27, No. 4, 7-11 (2017), 2017
Some recent progress and open questions in extracting and understanding the new physics underlying the density dependence of nuclear symmetry energy from laboratory experiments are discussed.
arxiv   +1 more source

Applications of Nuclear Physics [PDF]

open access: yesRep. Prog. Phys. 80 (2017) 026301, 2017
Today the applications of nuclear physics span a very broad range of topics and fields. This review discusses a number of aspects of these applications, including selected topics and concepts in nuclear reactor physics, nuclear fusion, nuclear non-proliferation, nuclear-geophysics, and nuclear medicine.
arxiv   +1 more source

Rho meson decay in the presence of a magnetic field

open access: yesEuropean Physical Journal C: Particles and Fields, 2017
We find a general expression for the one-loop self-energy function of neutral $$\rho $$ ρ -meson due to $$\pi ^+\pi ^-$$ π + π - intermediate state in a background magnetic field.
Aritra Bandyopadhyay, S. Mallik
doaj   +1 more source

Non-perturbatively gauge-fixed compact U(1) lattice gauge theory

open access: yesJournal of High Energy Physics, 2017
An extensive study of the compact U(1) lattice gauge theory with a higher derivative gauge-fixing term and a suitable counter-term has been undertaken to determine the nature of the possible continuum limits for a wide range of the parameters, especially
Asit K. De, Mugdha Sarkar
doaj   +1 more source

RG flows and thermofield-double states in holography

open access: yesJournal of High Energy Physics, 2022
In this article, we consider a Renormalization Group flow of the Thermofield-Double state in a UV-complete description of Holography, by introducing a relevant deformation to the N $$ \mathcal{N} $$ = 4 super Yang-Mills theory at strong coupling. This RG-
Suman Das, Arnab Kundu
doaj   +1 more source

Effective Field Theory for Nuclear Physics [PDF]

open access: yesNucl.Phys. A721 (2003) 94-103, 2003
I review the current status of the application of effective field theory to nuclear physics, and its present implications for nuclear astrophysics.
arxiv   +1 more source

Thermoelectric transport coefficients of quark matter

open access: yesEuropean Physical Journal C: Particles and Fields, 2022
A thermal gradient and/or a chemical potential gradient in a conducting medium can lead to an electric field, an effect known as thermoelectric effect or Seebeck effect.
Aman Abhisek   +3 more
doaj   +1 more source

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