Skip to main content

Neutrinos, Dark Energy, and Einstein: DESI Maps the Universe’s Secrets




New analysis supports Einstein’s relativity and narrows neutrino mass ranges, hinting at evolving dark energy.

Gravity, the fundamental force sculpting the universe, has shaped tiny variations in matter from the early cosmos into the vast networks of galaxies we see today. Using data from the Dark Energy Spectroscopic Instrument (DESI), scientists have traced the evolution of these cosmic structures over the past 11 billion years. This research represents the most precise large-scale test of gravity ever conducted, offering unprecedented insights into the universe’s formation and behavior.

Researcher Héctor Gil Marín, from the Faculty of Physics and the Institute of Cosmos Sciences of the University of Barcelona (ICCUB), has co-led this new analysis and says that “these data allow us to study how fast the largest structures of the Universe have formed, to put limits to Einstein’s General Relativity theory at cosmological scales much larger than those of the solar system.” The researcher, who is also a member of the Institute for Space Studies of Catalonia (IEEC), adds that “for now, the results fit perfectly with the predictions of Einstein’s General Relativity theory.”

The study also provides a new upper limit on the mass of neutrinos, whose only elementary particles have not yet had their masses measured. Previous experiments revealed that the sum of the masses of the three types of neutrinos should be at least 0.059 eV/c2 (for comparison, that of the electron is 511 000 eV/c2). The DESI results indicate that this sum should be less than 0.071 eV/c2, which leaves a very narrow window for the possible values of the neutrino masses.

The DESI collaboration has presented the new results in several scientific papers available in the arXiv repository. The complex analysis of the data used nearly six million galaxies and quasars located at distances ranging from one to eleven billion light-years from Earth

The results presented today are an in-depth analysis of data from the first year of DESI, which in April presented the largest 3D map of the Universe ever made and found some hints that dark energy may be changing over time. The results published then focused on a particular property of the spatial distribution of galaxies, known as baryon acoustic oscillations (BAOs). This new analysis incorporates all the information contained in the shape of the power spectrum and extends the scope of the above to extract more information from the data, allowing the distribution of galaxies and matter to be measured on different spatial scales. The study has required months of work and additional checks. As in the previous case, they have used a blind analysis technique that hides the results until the end, to mitigate any bias.

Eusebio Sánchez, a researcher at the Research Center for Energy, Environment and Technology (CIEMAT) who has collaborated in the analysis of the data, says that “the results obtained with the first year of DESI data are stunning.” And he clarifies that “this is only the beginning, the project is taking more data that will allow us to improve our current knowledge of gravity and dark energy.”

Website: International Research Awards on High Energy Physics and Computational Science.

#HighEnergyPhysics#ParticlePhysics#QuantumPhysics#AstroparticlePhysics#ColliderPhysics#HiggsBoson#LHC#QuantumFieldTheory#NeutrinoPhysics#PhysicsResearch#ComputationalScience#DataScience#ScientificComputing#NumericalMethods#HighPerformanceComputing#MachineLearningInScience#BigData#AlgorithmDevelopment#SimulationScience#ParallelComputing

Visit Our Website : hep-conferences.sciencefather.com
Nomination Link : https://hep-conferences.sciencefather.com/award-nomination/?ecategory=Awards&rcategory=Awardee
Registration Link : hep-conferences.sciencefather.com/award-registration/
Member Link : hep-conferences.sciencefather.com/conference-membership/?ecategory=Membership&rcategory=Member
Awards-Winners : hep-conferences.sciencefather.com/awards-winners/
Contact us : contact@sciencefather.com


Get Connected Here:
==================
Social Media Link
Twitter : x.com/Psciencefather
Pinterest : in.pinterest.com/physicsresearchorganisation
Blog : physicscience23.blogspot.com
Instagram : www.instagram.com/victoriaanisa1
YouTube :www.youtube.com/channel/UCzqmZ9z40uRjiPSr9XdEwMA

Comments

Post a Comment

Popular posts from this blog

Physicists observe a new form of magnetism for the first time

MIT physicists have demonstrated a new form of magnetism that could one day be harnessed to build faster, denser, and less power-hungry " spintronic " memory chips. The new magnetic state is a mash-up of two main forms of magnetism: the ferromagnetism of everyday fridge magnets and compass needles, and antiferromagnetism, in which materials have magnetic properties at the microscale yet are not macroscopically magnetized. Now, the MIT team has demonstrated a new form of magnetism , termed "p-wave magnetism." Physicists have long observed that electrons of atoms in regular ferromagnets share the same orientation of "spin," like so many tiny compasses pointing in the same direction. This spin alignment generates a magnetic field, which gives a ferromagnet its inherent magnetism. Electrons belonging to magnetic atoms in an antiferromagnet also have spin, although these spins alternate, with electrons orbiting neighboring atoms aligning their spins antiparalle...
Post a Comment
Read more

new research in qauntum physics

         VISIT:https: //hep-conferences.sciencefather.com/          N ew research in  qauntum physics.                                                    Alphabet Has a Second, Secretive Quantum Computing Team Recent research in quantum physics includes the development of quantum computers, which are expected to be much more powerful than conventional computers and could revolutionize many aspects of technology, such as artificial intelligence and cryptography. Other research includes the development of quantum sensors for a variety of applications, including medical diagnostics, and the study of quantum entanglement and its potential to enable quantum computing and secure communication. Additionally, research is being conducted into the applications of quantum mechanics in materials science, such as unde...
Post a Comment
Read more

Freezing light? Italian scientists froze fastest thing in universe, here’s how

In a rare occurrence, physics made it possible to control the fastest travelling element - light. Italian scientists have managed to freeze the light, as per reports. A recent study published in a British weekly journal reportedly revealed that light can exhibit ‘ supersolid behavior ’ a unique state of matter that flows without friction while retaining a solid-like structure. The research, led by Antonio Gianfate from CNR Nanotec and Davide Nigro from the University of Pavia, marks a significant step in understanding supersolidity in light. The scientists described their findings as “just the beginning” of this exploration, as per reports. In what can be termed as ‘manipulating photons under controlled quantum conditions ’, the scientists demonstrated that light, too, can exhibit this behaviour. (A photon is a bundle of electromagnetic energy which is massless, and travel at the speed of light) How did scientists freeze light? As we know, freezing involves lowering a liquid’s tempera...
Post a Comment
Read more