Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Scientist of the University of Ghent discovers natural atom antihydrogen

04.03.2005


On February 15, 2005 of the Physics/Einstein Year, the complete story of the discovery of natural atom antihydrogen, started in 1985, was published on-line.



The antihydrogen problem has become a highly mediatic issue, both in the specialized physics and the more general press [1]. A real hype started at the end of 2002 when rivalling CERN-based groups ATHENA and ATRAP both claimed the production of large quantities of artificial antihydrogen. Scientists, wondering about a signature for the presence of this mysterious species antihydrogen, were disappointed as no direct signature whatever was presented. In fact, a spectral identification of antihydrogen is impossible since measuring its spectrum is exactly the goal of ATHENA and ATRAP collaborations.

Strangely, the same media failed to report that on October 21 2002, a paper was published with a signature for the antihydrogen atom in the observed line spectrum of natural H [2], an essential step in the discovery of natural antihydrogen by G. Van hooydonk, science professor at and former Chief-Librarian of the Ghent University. This signature would not make sense if it was not confirming an earlier signature in the band spectrum of natural molecular hydrogen [3]. Both types of complementary signatures for natural antihydrogen, as well as a Mexican hat-type potential [4], were left unnoticed since the time of Bohr.


The information published online is available in print in the 2005 March issue of the European Physical journal D [5]. With its sound theoretical basis, this discovery has drastic repercussions for physics at large and for atomic and molecular physics (chemistry) in particular. According to the referees, the story is fascinating to read. The existence of natural antihydrogen not only flaws the CERN-experiments on artificial antihydrogen [6]; it is also important for the three fundamental symmetries CPT in physics and for Einstein’s WEP. The existence of natural antihydrogen also immediately solves the long standing problem of the so-called matter-antimatter asymmetry of the Universe, where natural hydrogen is the most abundant species [7]. As a matter of fact, in natural stable molecular hydrogen, the amounts of atom hydrogen and of its mirrored counterpart antihydrogen must be exactly the same for old-fashioned stochiometric reasons.

[1] C. Seife, Science 298, 1327 (2002); ibidem 307, 26 (2005) and hundreds of press releases worldwide
[2] G. Van Hooydonk, Phys. Rev. A 66, 044103 (2002)
[3] G. Van Hooydonk, Spectrochim. Acta A 56, 2273 (2000); physics/0003005 (2000)
[4] G. Van Hooydonk, Acta Phys. Hung. A NS 19, 385 (2004), lecture at the Wigner Centennial 2002, Pecs, Hungary; http://quantum.ttk.pte.hu/~wigner/proceedings/papers/w73.pdf
[5] G. Van Hooydonk, Eur. Phys. J D 32, 299 (2005)
[6] G. Van Hooydonk, physics/0505074 (2005)

Guido van Hooydonk | alfa
Further information:
http://www.ugent.be

More articles from Physics and Astronomy:

nachricht Temperature-controlled fiber-optic light source with liquid core
20.06.2018 | Leibniz-Institut für Photonische Technologien e. V.

nachricht New material for splitting water
19.06.2018 | American Institute of Physics

All articles from Physics and Astronomy >>>

The most recent press releases about innovation >>>

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

Im Focus: Temperature-controlled fiber-optic light source with liquid core

In a recent publication in the renowned journal Optica, scientists of Leibniz-Institute of Photonic Technology (Leibniz IPHT) in Jena showed that they can accurately control the optical properties of liquid-core fiber lasers and therefore their spectral band width by temperature and pressure tuning.

Already last year, the researchers provided experimental proof of a new dynamic of hybrid solitons– temporally and spectrally stationary light waves resulting...

Im Focus: Overdosing on Calcium

Nano crystals impact stem cell fate during bone formation

Scientists from the University of Freiburg and the University of Basel identified a master regulator for bone regeneration. Prasad Shastri, Professor of...

Im Focus: AchemAsia 2019 will take place in Shanghai

Moving into its fourth decade, AchemAsia is setting out for new horizons: The International Expo and Innovation Forum for Sustainable Chemical Production will take place from 21-23 May 2019 in Shanghai, China. With an updated event profile, the eleventh edition focusses on topics that are especially relevant for the Chinese process industry, putting a strong emphasis on sustainability and innovation.

Founded in 1989 as a spin-off of ACHEMA to cater to the needs of China’s then developing industry, AchemAsia has since grown into a platform where the latest...

Im Focus: First real-time test of Li-Fi utilization for the industrial Internet of Things

The BMBF-funded OWICELLS project was successfully completed with a final presentation at the BMW plant in Munich. The presentation demonstrated a Li-Fi communication with a mobile robot, while the robot carried out usual production processes (welding, moving and testing parts) in a 5x5m² production cell. The robust, optical wireless transmission is based on spatial diversity; in other words, data is sent and received simultaneously by several LEDs and several photodiodes. The system can transmit data at more than 100 Mbit/s and five milliseconds latency.

Modern production technologies in the automobile industry must become more flexible in order to fulfil individual customer requirements.

Im Focus: Sharp images with flexible fibers

An international team of scientists has discovered a new way to transfer image information through multimodal fibers with almost no distortion - even if the fiber is bent. The results of the study, to which scientist from the Leibniz-Institute of Photonic Technology Jena (Leibniz IPHT) contributed, were published on 6thJune in the highly-cited journal Physical Review Letters.

Endoscopes allow doctors to see into a patient’s body like through a keyhole. Typically, the images are transmitted via a bundle of several hundreds of optical...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Munich conference on asteroid detection, tracking and defense

13.06.2018 | Event News

2nd International Baltic Earth Conference in Denmark: “The Baltic Sea region in Transition”

08.06.2018 | Event News

ISEKI_Food 2018: Conference with Holistic View of Food Production

05.06.2018 | Event News

 
Latest News

Better model of water under extreme conditions could aid understanding of Earth's mantle

21.06.2018 | Earth Sciences

What are the effects of coral reef marine protected areas?

21.06.2018 | Life Sciences

The Janus head of the South Asian monsoon

21.06.2018 | Earth Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>