Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


Chemical reaction between matter and antimatter realized for the first time: it brings about the formation of protonium

Matter and antimatter particles run into each other and they annihilate into a small flash of energy: it happened at the first light of the Universe and it happens every day in the particles accelerators throughout the world.

The international collaboration Athena, that involves Genoa, Pavia and Brescia Infn researchers, has yet been able to induce for the first time a chemical reaction between matter and antimatter that produced protonium: it is formed of one hydrogen ion and one anti-hydrogen ion, that is to say a proton and an antiproton. The result has been published today Friday, October 13, by Physical Review Letters.

The Athena experiment, an “antimatter factory” is fitted out at Cern, in Geneva and it produced for the first time in 2002 an antimatter “cloud”, formed of some thousands of anti-hydrogen atoms. The result was published by Nature review. Nevertheless, researchers pointed out a strange structure that appeared in the distribution of annihilation positions of the antimatter. “Athena stopped taking data at the end of 2004, but the analysis of the data gathered up that moment went on and the research published today is one of the result of this activity. It explains exactly that, at that time, “mysterious” structure, says Evandro Lodi Rizzini, who coordinated this analysis and who belongs to Infn associated group of Brescia.

Atoms of anti-hydrogen in Athena were created making come in contact anti-protons and anti-electrons in a high vacuum environment. In these conditions about 10.000-100.000 hydrogen molecules per a cube centimetre remain, versus the many thousands milliard and milliard molecules that would be present in a no vacuum environment. “Probably, exactly these remaining molecules are responsible for the observed phenomenon. We believe in fact that the anti-electrons, which were put in the vacuum room, caused the ionization of some hydrogen molecules, by removing an electron from them. These ionized molecules (H2+) have been then attracted by the antiprotons, which can be considered in this case anti-hydrogen ions. The chemical reaction that produced the protonium derived exactly from this process” goes on Evandro Lodi Rizzini.

... more about:
»Antimatter »Hydrogen »anti-hydrogen »protonium

Production of protonium was in the past already observed, but in different conditions. This is the first time that this simple and symmetric structure of matter and anti-matter - that looks like a hydrogen atom and an anti-hydrogen one - is produced through a chemical reaction. This result opens a course for the realization of high-efficiency protonium sources. We will be able to study in details fundamental characteristics of this structure, in particular the energy levels, in order to compare them with the theoretical models.

Barbara Gallavotti | alfa
Further information:

Further reports about: Antimatter Hydrogen anti-hydrogen protonium

More articles from Life Sciences:

nachricht Make way for the mini flying machines
21.03.2018 | American Chemical Society

nachricht New 4-D printer could reshape the world we live in
21.03.2018 | American Chemical Society

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Researchers at Fraunhofer monitor re-entry of Chinese space station Tiangong-1

In just a few weeks from now, the Chinese space station Tiangong-1 will re-enter the Earth's atmosphere where it will to a large extent burn up. It is possible that some debris will reach the Earth's surface. Tiangong-1 is orbiting the Earth uncontrolled at a speed of approx. 29,000 km/h.Currently the prognosis relating to the time of impact currently lies within a window of several days. The scientists at Fraunhofer FHR have already been monitoring Tiangong-1 for a number of weeks with their TIRA system, one of the most powerful space observation radars in the world, with a view to supporting the German Space Situational Awareness Center and the ESA with their re-entry forecasts.

Following the loss of radio contact with Tiangong-1 in 2016 and due to the low orbital height, it is now inevitable that the Chinese space station will...

Im Focus: Alliance „OLED Licht Forum“ – Key partner for OLED lighting solutions

Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP, provider of research and development services for OLED lighting solutions, announces the founding of the “OLED Licht Forum” and presents latest OLED design and lighting solutions during light+building, from March 18th – 23rd, 2018 in Frankfurt a.M./Germany, at booth no. F91 in Hall 4.0.

They are united in their passion for OLED (organic light emitting diodes) lighting with all of its unique facets and application possibilities. Thus experts in...

Im Focus: Mars' oceans formed early, possibly aided by massive volcanic eruptions

Oceans formed before Tharsis and evolved together, shaping climate history of Mars

A new scenario seeking to explain how Mars' putative oceans came and went over the last 4 billion years implies that the oceans formed several hundred million...

Im Focus: Tiny implants for cells are functional in vivo

For the first time, an interdisciplinary team from the University of Basel has succeeded in integrating artificial organelles into the cells of live zebrafish embryos. This innovative approach using artificial organelles as cellular implants offers new potential in treating a range of diseases, as the authors report in an article published in Nature Communications.

In the cells of higher organisms, organelles such as the nucleus or mitochondria perform a range of complex functions necessary for life. In the networks of...

Im Focus: Locomotion control with photopigments

Researchers from Göttingen University discover additional function of opsins

Animal photoreceptors capture light with photopigments. Researchers from the University of Göttingen have now discovered that these photopigments fulfill an...

All Focus news of the innovation-report >>>



Industry & Economy
Event News

Virtual reality conference comes to Reutlingen

19.03.2018 | Event News

Ultrafast Wireless and Chip Design at the DATE Conference in Dresden

16.03.2018 | Event News

International Tinnitus Conference of the Tinnitus Research Initiative in Regensburg

13.03.2018 | Event News

Latest News

TRAPPIST-1 planets provide clues to the nature of habitable worlds

21.03.2018 | Physics and Astronomy

The search for dark matter widens

21.03.2018 | Materials Sciences

Natural enemies reduce pesticide use

21.03.2018 | Life Sciences

Science & Research
Overview of more VideoLinks >>>