Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New technique for antihydrogen synthesis promises answers to mysteries of antimatter

08.12.2010
Researchers at RIKEN, Japan’s flagship research institution, have successfully devised the world’s first experimental technique for measuring ground-state hyperfine transitions of antihydrogen.

Researchers at RIKEN, Japan’s flagship research institution, have successfully devised the world’s first experimental technique for measuring ground-state hyperfine transitions of antihydrogen. By enabling scientists to test fundamental theories of symmetry and gravity, the new technique promises to shed light on some of the most profound mysteries of our universe.

One of the most puzzling findings to emerge from modern physics, the existence of antimatter is at the heart of some of the most challenging unsolved problems in science. Why is it that the universe today is made up almost exclusively of matter, and not antimatter? The standard model of particle physics, currently our best theory on the subatomic world, fails to provide an answer to this question.

Instead, scientists believe the answer may lie in tiny differences between the properties of matter and antimatter, manifested in violations of a principle known as CPT (charge, parity, time) symmetry. Antihydrogen, made up of an antiproton and a positron, is attractive for testing CPT symmetry given its simple structure. First produced in large quantities at CERN in 2002, antihydrogen was recently trapped for the first time in a widely-reported study by the international ALPHA collaboration, published last month in Nature.

... more about:
»ASACUSA »Alpha »Antihydrogen »CERN »CPT »Letters »RIKEN »Researchers

The new experimental technique, also developed at CERN in a project called ASACUSA, adopts a novel approach for testing CPT in antihydrogen. Whereas ALPHA focused on high-precision laser spectroscopy measurement of 1S-2S electron transitions, ASACUSA uses high-precision microwave spectroscopy to study much smaller hyperfine transitions. The latter approach does not require that atoms be trapped for their properties to be measured, thus making it possible to study an actual beam of antihydrogen.

The new experimental setup, which produces antihydrogen by colliding positrons and antiprotons in a novel “cusp” trap, is an essential precursor to creating such a beam. Initial findings reported in the journal Physical Review Letters indicate that more than 7% of all antiprotons injected into the trap successfully combine to form antihydrogen, suggesting that tests of CPT symmetry are not far away. Together with the studies on trapped antihydrogen, new experiments promise groundbreaking insights into the nature of antimatter, revolutionizing our understanding of matter and the universe.

For more information, please contact:

Dr. Yasunori Yamazaki
Atomic Physics Laboratory
RIKEN Advanced Science Institute
Tel: +81-(0)48-467-9428 / Fax: +81-(0)48-467-8497
Ms. Tomoko Ikawa (PI officer)
Global Relations Office
RIKEN
Tel: +81-(0)48-462-1225 / Fax: +81-(0)48-463-3687
Email: koho@riken.jp
Reference:
Y. Enomoto, N. Kuroda, K. Michishio, C.H. Kim, H. Higaki, Y. Nagata, Y. Kanai, H.A. Torii, M. Corradini, M. Leali, E. Lodi-Rizzini, V. Mascagna, L. Venturelli, N. Zurlo, K. Fujii, M. Ohtsuka, K. Tanaka, H. Imao, Y. Nagashima, Y. Matsuda, B. Juhasz, A. Mohri, and Y. Yamazaki. Synthesis of Cold Antihydrogen in a Cusp Trap. Physical Review Letters (2010).

gro-pr | Research asia research news
Further information:
http://www.riken.jp
http://www.researchsea.com

Further reports about: ASACUSA Alpha Antihydrogen CERN CPT Letters RIKEN Researchers

More articles from Physics and Astronomy:

nachricht Engineering team images tiny quasicrystals as they form
18.08.2017 | Cornell University

nachricht Astrophysicists explain the mysterious behavior of cosmic rays
18.08.2017 | Moscow Institute of Physics and Technology

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: Fizzy soda water could be key to clean manufacture of flat wonder material: Graphene

Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.

As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...

Im Focus: Exotic quantum states made from light: Physicists create optical “wells” for a super-photon

Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.

Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...

Im Focus: Circular RNA linked to brain function

For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.

While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...

Im Focus: RAVAN CubeSat measures Earth's outgoing energy

An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.

The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...

Im Focus: Scientists shine new light on the “other high temperature superconductor”

A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.

Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Call for Papers – ICNFT 2018, 5th International Conference on New Forming Technology

16.08.2017 | Event News

Sustainability is the business model of tomorrow

04.08.2017 | Event News

Clash of Realities 2017: Registration now open. International Conference at TH Köln

26.07.2017 | Event News

 
Latest News

New gene catalog of ocean microbiome reveals surprises

18.08.2017 | Life Sciences

Astrophysicists explain the mysterious behavior of cosmic rays

18.08.2017 | Physics and Astronomy

AI implications: Engineer's model lays groundwork for machine-learning device

18.08.2017 | Information Technology

VideoLinks
B2B-VideoLinks
More VideoLinks >>>