Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Additional Subnuclear Structures

Additional Subnuclear Structures

The eukaryotic nucleus is a double membrane-bound organelle that contains nearly all of the cell’s genetic material in the form of chromosomes. It is rightly called the “brain” of the cell as it shoulders the responsibility of responding to various physiological processes, stress, altered metabolic conditions, and other cellular signals.
The nucleus contains many membrane-less subnuclear organelles or nuclear bodies, such as nucleoli, Cajal bodies, speckles, paraspeckles, etc. These nuclear...

Additional Subnuclear Structures

Additional Subnuclear Structures

The eukaryotic nucleus is a double membrane-bound organelle that contains nearly all of the cell’s genetic material in the form of chromosomes. It is rightly called the “brain” of the cell as it shoulders the responsibility of responding to various physiological processes, stress, altered metabolic conditions, and other cellular signals.
The nucleus contains many membrane-less subnuclear organelles or nuclear bodies, such as nucleoli, Cajal bodies, speckles, paraspeckles, etc. These nuclear...

Atomic Nuclei: Nuclear Spin

Atomic Nuclei: Nuclear Spin

All atomic particles possess an intrinsic angular momentum, or 'spin'. Electrons, protons, and neutrons each have a spin value of ½, although protons and neutrons in nuclei may have higher half-integer spins owing to energetic factors.
Atomic nuclei have a net nuclear spin, , which can have an integer or half-integer value. In atomic nuclei, the spins of protons are paired against each other but not with neutrons, and vice versa. Consequently, an even number of protons does not contribute to...

Atomic Nuclei: Nuclear Spin State Overview

Atomic Nuclei: Nuclear Spin State Overview

NMR-active nuclei have energy levels called 'spin states' that are associated with the orientations of their nuclear magnetic moments. In the absence of a magnetic field, the nuclear magnetic moments are randomly oriented, and the spin states are degenerate. When an external magnetic field is applied, the spin states have only 2 + 1 orientations available to them. A proton with = ½ has two available orientations. Similarly, for a quadrupolar nucleus with a nuclear spin value of one, the...

Atomic Nuclei: Nuclear Spin State Population Distribution

Atomic Nuclei: Nuclear Spin State Population Distribution

Near absolute zero temperatures, in the presence of a magnetic field, the majority of nuclei prefer the lower energy spin-up state to the higher energy spin-down state. As temperatures increase, the energy from thermal collisions distributes the spins more equally between the two states. The Boltzmann distribution equation gives the ratio of the number of spins predicted in the spin −½ (N−) and spin +½ (N+) states.

Nuclear Overhauser Enhancement (NOE)

Nuclear Overhauser Enhancement (NOE)

Irradiation of a spin-active nucleus causes an increase or decrease in the signal intensity of neighboring nuclei that are not necessarily chemically bonded or involved in J-coupling. This phenomenon, called the nuclear Overhauser enhancement (NOE), results from through-space interactions between the nuclear spins. The NOE effect decreases with increasing internuclear distance and is generally not observed beyond 4 angstroms. In NOE, dipole-dipole interactions between neighboring spin-active...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Cellulose acetate-based polymer electrolyte for energy storage application with the influence of BaTiO<sub>3</sub> nanofillers on the electrochemical properties: A progression in biopolymer-EDLC technology.

International journal of biological macromolecules·2024

Same author

Adiabatic light guide with S-shaped strips.

The Review of scientific instruments·2024

Same author

New Constraint on the Local Relic Neutrino Background Overdensity with the First KATRIN Data Runs.

Physical review letters·2022

Same author

Proton Compton Scattering from Linearly Polarized Gamma Rays.

Physical review letters·2022

Same author

Bound on 3+1 Active-Sterile Neutrino Mixing from the First Four-Week Science Run of KATRIN.

Physical review letters·2021

Same author

Translation Approach for Dentine Regeneration Using GSK-3 Antagonists.

Journal of dental research·2020

Search research articles

Related Experiment Video

Updated: Jul 17, 2026

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry

Published on: August 12, 2013

Hypernuclear fine structure in (16)(Lambda)O and the LambdaN tensor interaction.

M Ukai¹, S Ajimura, H Akikawa

¹Department of Physics, Tohoku University, Sendai 980-8578, Japan.

Physical Review Letters

|December 17, 2004

Summary

Researchers observed gamma-ray transitions in Lambda-16O, revealing the Lambda-nucleon tensor interaction. This study provides the first experimental evidence for this fundamental nuclear force.

More Related Videos

Measurement and Analysis of Atomic Hydrogen and Diatomic Molecular AlO, C2, CN, and TiO Spectra Following Laser-induced Optical Breakdown

Measurement and Analysis of Atomic Hydrogen and Diatomic Molecular AlO, C₂, CN, and TiO Spectra Following Laser-induced Optical Breakdown

Published on: February 14, 2014

A Novel Technique for Raman Analysis of Highly Radioactive Samples Using Any Standard Micro-Raman Spectrometer

A Novel Technique for Raman Analysis of Highly Radioactive Samples Using Any Standard Micro-Raman Spectrometer

Published on: April 12, 2017

Related Experiment Videos

Last Updated: Jul 17, 2026

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry

The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry

Published on: August 12, 2013

Measurement and Analysis of Atomic Hydrogen and Diatomic Molecular AlO, C2, CN, and TiO Spectra Following Laser-induced Optical Breakdown

Measurement and Analysis of Atomic Hydrogen and Diatomic Molecular AlO, C₂, CN, and TiO Spectra Following Laser-induced Optical Breakdown

Published on: February 14, 2014

A Novel Technique for Raman Analysis of Highly Radioactive Samples Using Any Standard Micro-Raman Spectrometer

A Novel Technique for Raman Analysis of Highly Radioactive Samples Using Any Standard Micro-Raman Spectrometer

Published on: April 12, 2017

Area of Science:

Nuclear Physics
Hypernuclear Physics
Particle Physics

Background:

The Lambda-nucleon (LambdaN) interaction is crucial for understanding hypernuclei.
Experimental data on the LambdaN tensor interaction is scarce.
Previous studies have not directly measured the LambdaN tensor force.

Purpose of the Study:

To experimentally determine the LambdaN tensor interaction strength.
To investigate the properties of Lambda-16O hypernucleus.
To measure gamma-ray transitions in Lambda-16O.

Main Methods:

Utilized the (K-, pi(-)gamma) reaction to produce Lambda-16O.
Observed two gamma-ray transitions from an excited state to ground-state doublet members.
Precisely measured excitation energies and energy spacings.

Main Results:

Observed gamma-ray transitions from the 1(-)(2) state in Lambda-16O.
Determined the ground-state doublet spacing to be 26.4+/-1.6(stat)+/-0.5(syst) keV.
Measured the excitation energy of the 1(-)(2) state as 6561.7+/-1.1(stat)+/-1.7(syst) keV.

Conclusions:

The ground-state doublet spacing indicates a non-zero LambdaN tensor interaction strength.
This is the first experimental measurement of the LambdaN tensor interaction.
Provides crucial data for refining nuclear models of hypernuclei.