• HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
Tuesday, October 28, 2025
BIOENGINEER.ORG
No Result
View All Result
  • Login
  • HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
        • Lecturer
        • PhD Studentship
        • Postdoc
        • Research Assistant
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
  • HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
        • Lecturer
        • PhD Studentship
        • Postdoc
        • Research Assistant
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
No Result
View All Result
Bioengineer.org
No Result
View All Result
Home NEWS Science News Chemistry

Physicists discover heaviest antimatter hypernucleus to date

by
September 6, 2025
in Chemistry
Reading Time: 2 mins read
0
Antihyperhydrogen-4 created in a heavy-ion collision
Share on FacebookShare on TwitterShare on LinkedinShare on RedditShare on Telegram

Physicists from the STAR Collaboration have observed a new antimatter hypernucleus, antihyperhydrogen-4, for the first time. This is the heaviest antimatter hypernucleus discovered in experiments to date. This study, led by researchers from the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences, was published in Nature on Aug. 21.

Physicists from the STAR Collaboration have observed a new antimatter hypernucleus, antihyperhydrogen-4, for the first time. This is the heaviest antimatter hypernucleus discovered in experiments to date. This study, led by researchers from the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences, was published in Nature on Aug. 21.

Current physics assumes that the properties of matter and antimatter are symmetrical and that equal amounts of matter and antimatter existed at the birth of the universe. However, some mysterious physical mechanism caused the annihilation of most matter and antimatter, with only about one in ten billion matter particles surviving. These particles formed the matter world we see today.

“What caused the difference in quantities of matter and antimatter in the universe? To answer this question, an important approach is to create new antimatter in the laboratory and study its properties,” said Prof. QIU Hao from IMP.

In today’s matter-dominated world, antimatter is extremely rare because it easily annihilates with surrounding matter. Antimatter nuclei and antimatter hypernuclei (nuclei containing hyperons such as Lambda) formed by combining several antibaryons are even more difficult to produce. Since the Dirac equation indicated the existence of antimatter in 1928, scientists have discovered only six types of antimatter (hyper)nuclei over nearly a century.

The newly discovered antihyperhydrogen-4 was produced at the Relativistic Heavy Ion Collider (RHIC) in the United States. RHIC can accelerate heavy ion beams to nearly the speed of light and make them collide. These collisions simulate the conditions of the early universe in the laboratory, producing fireballs with temperatures of several trillion degrees, which contain approximately equal amounts of matter and antimatter. As the fireball rapidly expands and cools, some antimatter escapes annihilation with matter and is detected by the STAR detector.

Antihyperhydrogen-4 is composed of one antiproton, two antineutrons, and one anti-Lambda hyperon. Due to the presence of the unstable anti-Lambda hyperon, antihyperhydrogen-4 decays after traveling merely a few centimeters.

“After analyzing experimental data of approximately 6.6 billion heavy-ion collision events, we reconstructed antihyperhydrogen-4 from its decay products antihelium-4 and π+ meson, and identified a signal of about 16 antihyperhydrogen-4,” said WU Junlin, a PhD student at IMP.

The researchers also measured the lifetime of antihyperhydrogen-4 and found no significant difference compared to that of its corresponding particle hyperhydrogen-4 within the limits of measurement precision, further verifying the symmetry between matter and antimatter properties.

The discovery and study of antihyperhydrogen-4 mark a significant advancement in the exploration of antimatter and the understanding of matter-antimatter symmetry.



Journal

Nature

DOI

10.1038/s41586-024-07823-0

Article Publication Date

21-Aug-2024

Tags: antihyperhydrogen-4antimatter hypernucleusmatter-antimatter symmetryRelativistic Heavy Ion ColliderSTAR Collaboration
Share12Tweet8Share2ShareShareShare2

Related Posts

blank

Thiophene-Doped Fully Conjugated Covalent Organic Frameworks Boost Photocatalytic Hydrogen Peroxide Production Efficiency

October 28, 2025
blank

Climate impacts of biochar and hydrochar differ in boreal grasslands

October 27, 2025

Cracking the Code of ‘Sticky’ Chemistry: A Path to Cleaner, More Efficient Fuels

October 27, 2025

Exploring the Role of Water-Soluble Polymers in Wastewater Treatment

October 27, 2025

POPULAR NEWS

  • Sperm MicroRNAs: Crucial Mediators of Paternal Exercise Capacity Transmission

    1287 shares
    Share 514 Tweet 321
  • Stinkbug Leg Organ Hosts Symbiotic Fungi That Protect Eggs from Parasitic Wasps

    310 shares
    Share 124 Tweet 78
  • ESMO 2025: mRNA COVID Vaccines Enhance Efficacy of Cancer Immunotherapy

    198 shares
    Share 79 Tweet 50
  • New Study Suggests ALS and MS May Stem from Common Environmental Factor

    135 shares
    Share 54 Tweet 34

About

We bring you the latest biotechnology news from best research centers and universities around the world. Check our website.

Follow us

Recent News

Enhancing Nurses’ Seizure Management Through Flipped Learning

Amlodipine Targets Glioma Stem Cells by Degrading EGFR

Smart Hydrogel Boosts Diabetic Foot Regeneration Mechanisms

Subscribe to Blog via Email

Success! An email was just sent to confirm your subscription. Please find the email now and click 'Confirm' to start subscribing.

Join 67 other subscribers
  • Contact Us

Bioengineer.org © Copyright 2023 All Rights Reserved.

Welcome Back!

Login to your account below

Forgotten Password?

Retrieve your password

Please enter your username or email address to reset your password.

Log In
No Result
View All Result
  • Homepages
    • Home Page 1
    • Home Page 2
  • News
  • National
  • Business
  • Health
  • Lifestyle
  • Science

Bioengineer.org © Copyright 2023 All Rights Reserved.