Weak interactions in nuclear physics

Unlike some models whose relevance to Nature is still a big question mark, Quantum Chromodynamics (QCD) will stay with us forever. QCD, born in 1973, is a very rich theory supposed to describe the widest range of strong interaction phenomena: from nuclear physics to Regge behavior at large E, from color confinement to quark–gluon matter at high densities/temperatures (neutron stars); the vast horizons of the hadronic world: chiral dynamics, glueballs, exotics, light and heavy quarkonia and mixtures thereof, exclusive and inclusive phenomena, interplay between strong forces and weak interactions, etc. Efforts aimed at solving the underlying theory, QCD, continue. In a remarkable entanglement, theoretical constructions of the 1970's and 1990's combine with today's ideas based on holographic description and strong–weak coupling duality, to provide new insights and a deeper understanding.

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Status of Theory and Experiment in Hadronic Parity Violation

International Journal of Modern Physics Conference Series ◽

10.1142/s2010194516600028 ◽

2016 ◽

Vol 40 ◽

pp. 1660002 ◽

Cited By ~ 1

Author(s):

W. M. Snow ◽

M. W. Ahmed ◽

J. D. Bowman ◽

C. Crawford ◽

N. Fomin ◽

...

Keyword(s):

Parity Violation ◽

Nuclear Physics ◽

Bound States ◽

Weak Interactions ◽

Low Energy ◽

Current Status ◽

Theoretical Methods ◽

Low Energy Nuclear Physics ◽

Theory And Experiment ◽

Future Plans

Hadronic parity violation uses quark-quark weak interactions to probe nonperturbative strong interaction dynamics through two nonperturbative QCD scales: [Formula: see text] and the fine-tuned MeV scales of NN bound states in low energy nuclear physics. The current and projected availability of high-intensity neutron and photon sources coupled with ongoing experiments and continuing developments in theoretical methods provide the opportunity to greatly expand our understanding of hadronic parity violation in few-nucleon systems. The current status of these efforts and future plans are discussed.

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Nuclear Spin Responses for Neutrinos in Astroparticle Physics

International Journal of Modern Physics E ◽

10.1142/s0218301397000020 ◽

1997 ◽

Vol 06 (01) ◽

pp. 1-43 ◽

Cited By ~ 20

Author(s):

H. Ejiri

Keyword(s):

Nuclear Spin ◽

Nuclear Physics ◽

Nuclear Reactions ◽

Weak Interactions ◽

Experimental Studies ◽

Weakly Interacting Massive Particles ◽

Standard Theory ◽

Fundamental Particles ◽

Weakly Interacting ◽

Massive Particles

Nuclear spin responses are of vital importance for studies of neutrinos, weakly interacting particles and of weak interactions in nuclei. The physics objectives are concerned with lepton nuclear physics within and beyond the standard theory. Here nuclei, which consist of elementary particles in good quantum (eigen) states, are used as excellent micro-laboratories for studying fundamental particles and interactions. Subjects discussed include neutrinos(ν) and weak interactions, weakly interacting massive particles as candidates for dark matters (DM), and other related problems. Experimental studies of them are made by investigating ultra rare nuclear processes at low background underground laboratories. Nuclear responses relevant to electroweak processes, neutrinos, and weakly interacting massive particles are discussed. Nuclear spin isospin responses associated with axial charged weak currents are investigated by using charge-exchange spin flip nuclear reactions at the RCNP ring cyclotron laboratory.

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Nuclear Processes Related to the Ap Stars and the Heaviest Chemical Elements

International Astronomical Union Colloquium ◽

10.1017/s0252921100080520 ◽

1976 ◽

Vol 32 ◽

pp. 169-182

Author(s):

B. Kuchowicz

Keyword(s):

Nuclear Physics ◽

Nuclear Reactions ◽

Chemical Elements ◽

Fission Products ◽

Abundance Pattern ◽

Isotopic Shifts ◽

Processed Material ◽

R Process ◽

Ap Stars ◽

Nuclear Processes

SummaryIsotopic shifts in the lines of the heavy elements in Ap stars, and the characteristic abundance pattern of these elements point to the fact that we are observing mainly the products of rapid neutron capture. The peculiar A stars may be treated as the show windows for the products of a recent r-process in their neighbourhood. This process can be located either in Supernovae exploding in a binary system in which the present Ap stars were secondaries, or in Supernovae exploding in young clusters. Secondary processes, e.g. spontaneous fission or nuclear reactions with highly abundant fission products, may occur further with the r-processed material in the surface of the Ap stars. The role of these stars to the theory of nucleosynthesis and to nuclear physics is emphasized.

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Two [Ln4] molecular rings folded as compact tetrahedra

Dalton Transactions ◽

10.1039/d0dt01259a ◽

2020 ◽

Vol 49 (21) ◽

pp. 7182-7188

Author(s):

Jorge Salinas-Uber ◽

Leoní A. Barrios ◽

Olivier Roubeau ◽

Guillem Aromí

Keyword(s):

Weak Interactions ◽

Molecular Rings

A new highly photo-switchable ligand furnishes supramolecular tetrahedral nanomagnets with Ln(iii) ions (Ln = Dy, Tb). Intramolecular weak interactions define the conformation of the ligand, quenching the photochromic activity.

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