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

Distributions to Estimate Population Parameter01:26

Distributions to Estimate Population Parameter

4.3K
The accurate values of population parameters such as population proportion, population mean, and population standard deviation (or variance) are usually unknown. These are fixed values that can only be estimated from the data collected from the samples. The estimates of each of these parameters are sample proportion, the sample mean, and sample standard deviation (or variance). To obtain the values of these sample statistics, data are required that have particular distribution and central...
4.3K
Maxwell-Boltzmann Distribution: Problem Solving01:20

Maxwell-Boltzmann Distribution: Problem Solving

1.8K
Individual molecules in a gas move in random directions, but a gas containing numerous molecules has a predictable distribution of molecular speeds, which is known as the Maxwell-Boltzmann distribution, f(v).
This distribution function f(v) is defined by saying that the expected number N (v1,v2) of particles with speeds between v1 and v2 is given by
1.8K
Reduced Mass Coordinates: Isolated Two-body Problem01:12

Reduced Mass Coordinates: Isolated Two-body Problem

1.6K
In classical mechanics, the two-body problem is one of the fundamental problems describing the motion of two interacting bodies under gravity or any other central force. When considering the motion of two bodies, one of the most important concepts is the reduced mass coordinates, a quantity that allows the two-body problem to be solved like a single-body problem. In these circumstances, it is assumed that a single body with reduced mass revolves around another body fixed in a position with an...
1.6K
Lenz's Law01:15

Lenz's Law

4.4K
The direction in which the induced emf drives the current around a wire loop can be found through the negative sign. However, it is usually easier to determine this direction with Lenz's law, named in honor of its discoverer, Heinrich Lenz (1804–1865). Lenz's law states that the direction of the induced emf drives the current around a wire loop always to oppose the change in magnetic flux that causes the emf.
If a bar magnet is moved toward a coil such that the magnetic flux...
4.4K
Region of Convergence of Laplace Tarnsform01:20

Region of Convergence of Laplace Tarnsform

750
The Region of Convergence (ROC) is a fundamental concept in signal processing and system analysis, particularly associated with the Laplace transform. The ROC represents an area in the complex plane where the Laplace transform of a given signal converges, determining the transform's applicability and utility.
Consider a decaying exponential signal that begins at a specific time. When deriving its Laplace transform, the time-domain variable is replaced with a complex variable. This...
750
Calibration Curves: Linear Least Squares01:20

Calibration Curves: Linear Least Squares

2.9K
A calibration curve is a plot of the instrument's response against a series of known concentrations of a substance. This curve is used to set the instrument response levels, using the substance and its concentrations as standards. Alternatively, or additionally, an equation is fitted to the calibration curve plot and subsequently used to calculate the unknown concentrations of other samples reliably.
For data that follow a straight line, the standard method for fitting is the linear...
2.9K

You might also read

Related Articles

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

Sort by
Same author

Warm Inflation with the Standard Model.

Physical review letters·2025
Same author

Connecting Cosmic Inflation to Particle Physics with LiteBIRD, CMB-S4, EUCLID, and SKA.

Physical review letters·2024
Same author

Uniting Low-Scale Leptogenesis Mechanisms.

Physical review letters·2021
Same author

Searching for New Long-Lived Particles in Heavy-Ion Collisions at the LHC.

Physical review letters·2020
Same author

Long-lived particles at the energy frontier: the MATHUSLA physics case.

Reports on progress in physics. Physical Society (Great Britain)·2019
Same author

A facility to search for hidden particles at the CERN SPS: the SHiP physics case.

Reports on progress in physics. Physical Society (Great Britain)·2016

Related Experiment Video

Updated: Oct 3, 2025

Setting Limits on Supersymmetry Using Simplified Models
07:46

Setting Limits on Supersymmetry Using Simplified Models

Published on: November 15, 2013

8.7K

Mapping the Viable Parameter Space for Testable Leptogenesis.

Marco Drewes1, Yannis Georis1, Juraj Klaric1,2

  • 1Centre for Cosmology, Particle Physics and Phenomenology, Université catholique de Louvain, Louvain-la-Neuve B-1348, Belgium.

Physical Review Letters
|February 18, 2022
PubMed
Summary

We mapped the conditions for leptogenesis, the process creating matter-antimatter asymmetry, in the type I seesaw model. This study covers a wide range of heavy neutrino masses and mixing angles, extending possibilities for leptogenesis.

More Related Videos

High-throughput Parallel Sequencing to Measure Fitness of Leptospira interrogans Transposon Insertion Mutants During Golden Syrian Hamster Infection
11:50

High-throughput Parallel Sequencing to Measure Fitness of Leptospira interrogans Transposon Insertion Mutants During Golden Syrian Hamster Infection

Published on: December 18, 2017

9.0K
Image-based Lagrangian Particle Tracking in Bed-load Experiments
10:32

Image-based Lagrangian Particle Tracking in Bed-load Experiments

Published on: July 20, 2017

9.1K

Related Experiment Videos

Last Updated: Oct 3, 2025

Setting Limits on Supersymmetry Using Simplified Models
07:46

Setting Limits on Supersymmetry Using Simplified Models

Published on: November 15, 2013

8.7K
High-throughput Parallel Sequencing to Measure Fitness of Leptospira interrogans Transposon Insertion Mutants During Golden Syrian Hamster Infection
11:50

High-throughput Parallel Sequencing to Measure Fitness of Leptospira interrogans Transposon Insertion Mutants During Golden Syrian Hamster Infection

Published on: December 18, 2017

9.0K
Image-based Lagrangian Particle Tracking in Bed-load Experiments
10:32

Image-based Lagrangian Particle Tracking in Bed-load Experiments

Published on: July 20, 2017

9.1K

Area of Science:

  • Particle Physics
  • Cosmology
  • Neutrino Physics

Background:

  • The origin of the matter-antimatter asymmetry in the universe remains a key unsolved problem in physics.
  • Leptogenesis is a leading theoretical mechanism proposed to explain this asymmetry.
  • The type I seesaw model provides a framework for understanding neutrino masses and offers a potential leptogenesis scenario.

Purpose of the Study:

  • To map the parameter space of active-sterile neutrino mixing angles for successful leptogenesis in the type I seesaw model.
  • To investigate leptogenesis via both freeze-in (ARS mechanism) and freeze-out (resonant leptogenesis) of heavy neutrinos.
  • To determine if current experimental bounds allow for viable leptogenesis scenarios.

Main Methods:

  • Analysis of the type I seesaw model with three heavy neutrinos.
  • Calculation of neutrino mixing angle ranges for leptogenesis feasibility.
  • Inclusion of both ARS mechanism and resonant leptogenesis.
  • Consideration of heavy neutrino Majorana masses from 50 MeV to 70 TeV.

Main Results:

  • The study identifies a considerably larger range of mixing angles for feasible leptogenesis compared to models with fewer right-handed neutrinos.
  • Leptogenesis is possible across the entire experimentally accessible mass range for heavy neutrinos.
  • Large mixing angles, potentially detectable at the High-Luminosity Large Hadron Collider (HL-LHC), are identified.

Conclusions:

  • The type I seesaw model with three heavy neutrinos offers a broader parameter space for leptogenesis than previously thought.
  • Experimental searches at the HL-LHC could probe these large mixing angles, providing crucial tests for leptogenesis models.
  • This research advances our understanding of the origin of matter and neutrino masses.