Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Interference and Diffraction02:18

Interference and Diffraction

54.6K
Interference is a characteristic phenomenon exhibited by waves. When two electromagnetic waves interact with their peaks and troughs coinciding, a resulting wave with enhanced amplitude is produced. This is known as constructive interference. In this case, the two waves interacting are in phase with each other.
54.6K
Properties of Laplace Transform-II01:16

Properties of Laplace Transform-II

670
Time differentiation, convolution, integration, and periodicity are fundamental concepts in analyzing functions and signals over time. Each concept provides a unique perspective on how functions evolve, interact, and repeat, offering essential tools for various scientific and engineering applications.
Time differentiation involves analyzing the rate of change of a function over time. Mathematically, it is the derivative of a function with respect to time. This concept can be likened to tracking...
670
Interference: Path Lengths01:10

Interference: Path Lengths

2.5K
Consider two sources of sound, that may or may not be in phase, emitting waves at a single frequency, and consider the frequencies to be the same.
Two special sources may be considered when they are in phase. This can be easily achieved by feeding the two sources from the same source. An example would be synchronizing the two speakers by feeding them with the same source, such as the sound waves produced by a tuning fork. This setup ensures that the two sources have the same frequency and are...
2.5K
Interpreting ¹H NMR Signal Splitting: The (n + 1) Rule01:10

Interpreting ¹H NMR Signal Splitting: The (n + 1) Rule

3.2K
In the AX proton spin system, proton A can sense the two spin states of a coupled proton X, resulting in a doublet NMR signal with two peaks of equal (1:1) intensity. When proton A is coupled to two equivalent protons (AX2 spin system), the spin states of each X can be aligned with or against the external field, creating three possible scenarios. This results in a 1:2:1  triplet signal, where the central peak corresponds to the chemical shift of A and is twice as large or intense as the...
3.2K
¹H NMR Signal Multiplicity: Splitting Patterns01:13

¹H NMR Signal Multiplicity: Splitting Patterns

8.5K
When protons A and X are coupled, their nuclear spin energy levels are slightly modified. This is because the energy required to excite proton A to a spin state parallel to proton X is slightly different from the energy required for it to become anti-parallel to spin X. Consequently, there are two possible excitation frequencies for A (A1 and A2), depending on the spin state of X, and vice versa. The mutual nature of coupling implies that the difference between frequencies A1 and A2, indicated...
8.5K
Atomic Nuclei: Larmor Precession Frequency01:11

Atomic Nuclei: Larmor Precession Frequency

3.7K
The earth's gravitational field produces a 'twisting force' perpendicular to the angular momentum of a spinning mass (such as a spinning top) that causes the mass to 'wobble' around the gravitational field axis in a phenomenon called precession. Similarly, the magnetic moment (μ) of a spinning nucleus precesses due to an external magnetic field directed along the z-axis. The precession of the magnetic moment vector about the magnetic field is called Larmor precession,...
3.7K

You might also read

Related Articles

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

Sort by
Same author

Rethinking white matter-tumor interaction: a tractography based analysis of associations between fractional anisotropy and morphometry in the IFOF and arcuate fasciculus.

Journal of neuro-oncology·2026
Same author

Molecular insights into DNA damage response plasticity in glioma stem cells.

Communications biology·2026
Same author

U-Net-based transfer learning for automated tumour segmentation enabling fully automated [<sup>18</sup>F]F-DOPA PET analysis in paediatric gliomas.

Brain informatics·2026
Same author

Editorial: Intraoperative Visualization Techniques and Advanced Imaging in Brain Tumors.

Cancers·2026
Same author

Wider window, easier access: optimizing Leksell Vantage positioning for posterior fossa stereotactic biopsy.

Acta neurochirurgica·2026
Same author

Analysis of Location-Specific Volumetric Cutoffs in Intraparenchymal Hemorrhage: A Case Series of 94 Patients.

World neurosurgery·2025

Related Experiment Video

Updated: Apr 6, 2026

High-Resolution Neutron Spectroscopy to Study Picosecond-Nanosecond Dynamics of Proteins and Hydration Water
08:48

High-Resolution Neutron Spectroscopy to Study Picosecond-Nanosecond Dynamics of Proteins and Hydration Water

Published on: April 28, 2022

2.3K

Periodic Interference Structures in the Timelike Proton Form Factor.

Andrea Bianconi1, Egle Tomasi-Gustafsson2

  • 1Dipartimento di Ingegneria dell' Informazione, Università degli Studi di Brescia and Istituto Nazionale di Fisica Nucleare, Gruppo Collegato di Brescia, I-25133 Brescia, Italy.

Physical Review Letters
|July 22, 2015
PubMed
Summary
This summary is machine-generated.

The proton timelike form factor shows a sinusoidal modulation, indicating an imaginary part from rescattering processes. This suggests significant inelastic interactions in proton-antiproton production.

More Related Videos

Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh
10:42

Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh

Published on: May 3, 2019

7.5K
Proton Transfer and Protein Conformation Dynamics in Photosensitive Proteins by Time-resolved Step-scan Fourier-transform Infrared Spectroscopy
10:03

Proton Transfer and Protein Conformation Dynamics in Photosensitive Proteins by Time-resolved Step-scan Fourier-transform Infrared Spectroscopy

Published on: June 27, 2014

18.5K

Related Experiment Videos

Last Updated: Apr 6, 2026

High-Resolution Neutron Spectroscopy to Study Picosecond-Nanosecond Dynamics of Proteins and Hydration Water
08:48

High-Resolution Neutron Spectroscopy to Study Picosecond-Nanosecond Dynamics of Proteins and Hydration Water

Published on: April 28, 2022

2.3K
Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh
10:42

Preparing an Isotopically Pure 229Th Ion Beam for Studies of 229mTh

Published on: May 3, 2019

7.5K
Proton Transfer and Protein Conformation Dynamics in Photosensitive Proteins by Time-resolved Step-scan Fourier-transform Infrared Spectroscopy
10:03

Proton Transfer and Protein Conformation Dynamics in Photosensitive Proteins by Time-resolved Step-scan Fourier-transform Infrared Spectroscopy

Published on: June 27, 2014

18.5K

Area of Science:

  • Particle Physics
  • Hadron Form Factors
  • Quantum Chromodynamics

Background:

  • The timelike hadron form factor is crucial for understanding particle interactions.
  • The presence of an imaginary part, linked to rescattering, has been theoretically proposed but experimentally elusive.

Purpose of the Study:

  • To investigate the presence and implications of an imaginary part in the proton timelike form factor.
  • To analyze recent, precise BABAR Collaboration data for evidence of rescattering effects.

Main Methods:

  • Analysis of BABAR Collaboration data for the proton timelike form factor.
  • Plotting form factor data as a function of the relative 3-momentum of proton-antiproton pairs.
  • Identifying systematic sinusoidal modulations in the near-threshold region.

Main Results:

  • Evidence found for a sinusoidal modulation in the proton timelike form factor data.
  • The modulation is attributed to rescattering processes occurring at a hadron center-of-mass separation of 0.7-1.5 fm.
  • This indicates a substantial contribution of inelastic processes in proton-antiproton interactions.

Conclusions:

  • The study provides strong evidence for an imaginary part in the proton timelike form factor.
  • Rescattering processes play a significant role in e(+)e(-)→pp reactions, as dictated by unitarity.
  • The findings offer new insights into the complex dynamics of hadron interactions.