Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Mainz physicists provide important component for the Large Hadron Collider at CERN

05.06.2015

Super-fast circuit board to be used for the identification of important particle collisions comes from Mainz

After a two-year operational pause and two months after its restart in April 2015, the Large Hadron Collider (LHC) at the CERN research center is now again recording data at energies as high as never before.


Work on the dipole magnets of the Large Hadron Collider (LHC) during the operational downtime

photo/©: CERN

These high-energy collisions at the world’s largest and most powerful particle accelerator are the beginning of a new era of particle physics and scientists hope that they will provide new insights into the structure of matter and possibly even a fundamental revision of the concepts of physics.

Some 50 researchers from Mainz University will be actively participating in the research at the LHC in the coming years. For the restart, they have contributed an important component.

Following its first startup at the end of 2009, the LHC subsequently gave proof of its enormous performance capabilities, culminating in the discovery of the Higgs boson in the summer of 2012. Two opposing particle beams are accelerated to nearly the speed of light and are then allowed to collide in the 27-kilometer-long tunnel of the accelerator ring, the result of which is the creation of new particles.

After two years of maintenance work, the LHC was cooled down to its operating temperature of minus 271 degrees Celsius earlier this year. Since April 2015, proton beams are circling again to collide at an energy of 13 tera-electron volts (TeV), whereas only 8 TeV was previously achieved.

Because of this increase in collision energy, the scientists expect to generate Higgs bosons more frequently than before. This could open a window to so-called New Physics, which extends beyond the well-known Standard Model. The greater the number of generated Higgs bosons, the more accurately they can be measured and compared with the theoretical expectations.

"It would be even more interesting and important if we observe completely new particles, for example, candidates for dark matter," said Professor Volker Büscher of the Institute of Physics at Mainz University. "We have very high expectations for this increase in energy because it will allow us to hunt for much heavier particles."

Thanks to technical modifications, the LHC is now able to transport more protons than before and it will produce more particle encounters at a rate of about one billion collisions per second. The experiments will generate huge amounts of data to be evaluated. Sophisticated triggers are used to capture only the really important events.

For the ATLAS experiment, the working group from Mainz has developed a new circuit board that automatically decides whether the system, rather like a camera, should record the image of a collision. "The topological trigger developed in Mainz is one of the main components that will ensure even better filtering in the future," explained Adam Kaluza, who is directly involved in this work as a doctoral candidate. The super-fast circuit board looks at 40 million events per second and decides in real time whether each individual event should be stored or not – an enormous technical challenge.

"We are now entering an exciting time that could lead us into completely unknown territory," added Büscher, referring to the new run of the LHC, which will continue until at least 2018. Mainz-based physicists are well placed with regard to the restart thanks to the Cluster of Excellence "Precision Physics, Fundamental Interactions and Structure of Matter" (PRISMA), which provides an excellent framework for taking a leading role in the new research work.

Images:
http://www.uni-mainz.de/bilder_presse/08_physik_etap_lhc_kollisionen_00.jpg
Physicists working in the ATLAS experiment control room. The message on LHC's Page 1 information panel showing that the machine is preparing for stable beams can be seen in the background.
photo/©: Pierre Descombe, CERN 2015

http://www.uni-mainz.de/bilder_presse/08_physik_etap_lhc_neustart_01.jpg
Work on the dipole magnets of the Large Hadron Collider (LHC) during the operational downtime
photo/©: CERN

http://www.uni-mainz.de/bilder_presse/08_physik_etap_lhc_neustart_02.jpg
A member of the ETAP working group at JGU, Christian Kahra, carrying out test measurements with the new circuit board for the ATLAS trigger.
photo/©: ETAP

http://www.uni-mainz.de/bilder_presse/08_physik_etap_lhc_neustart_03.jpg
The module developed in Mainz filters 40 million collision events per second and automatically decides which particle encounters are recorded and which are not.
photo: ETAP

Further information:
Professor Dr. Volker Büscher
Experimental Particle and Astroparticle Physics (ETAP)
Institute of Physics
Johannes Gutenberg University Mainz (JGU)
55099 Mainz, GERMANY
phone +49 6131 39-20399
fax +49 6131 39-25169
e-mail: buescher@uni-mainz.de
http://www.etap.physik.uni-mainz.de/index_ENG.php

Weitere Informationen:

http://www.cern.ch/ ;
http://home.web.cern.ch/topics/large-hadron-collider ;
http://www.atlas.ch/ ;
http://www.fsp101-atlas.de/

Petra Giegerich | idw - Informationsdienst Wissenschaft

More articles from Physics and Astronomy:

nachricht Tracing aromatic molecules in the early universe
23.03.2017 | University of California - Riverside

nachricht New study maps space dust in 3-D
23.03.2017 | DOE/Lawrence Berkeley National Laboratory

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: Giant Magnetic Fields in the Universe

Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.

The results will be published on March 22 in the journal „Astronomy & Astrophysics“.

Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...

Im Focus: Tracing down linear ubiquitination

Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.

Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...

Im Focus: Perovskite edges can be tuned for optoelectronic performance

Layered 2D material improves efficiency for solar cells and LEDs

In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...

Im Focus: Polymer-coated silicon nanosheets as alternative to graphene: A perfect team for nanoelectronics

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...

Im Focus: Researchers Imitate Molecular Crowding in Cells

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

International Land Use Symposium ILUS 2017: Call for Abstracts and Registration open

20.03.2017 | Event News

CONNECT 2017: International congress on connective tissue

14.03.2017 | Event News

ICTM Conference: Turbine Construction between Big Data and Additive Manufacturing

07.03.2017 | Event News

 
Latest News

When Air is in Short Supply - Shedding light on plant stress reactions when oxygen runs short

23.03.2017 | Life Sciences

Researchers use light to remotely control curvature of plastics

23.03.2017 | Power and Electrical Engineering

Sea ice extent sinks to record lows at both poles

23.03.2017 | Earth Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>