Stories
Slash Boxes
Comments

SoylentNews is people

posted by janrinok on Monday October 19 2015, @03:49PM   Printer-friendly
from the its-come-unstuck dept.

Science Daily is reporting on research [abstract;full paper pay-walled] by Professors Anton Rebhan and Frederic BrĂ¼nner from TU Wien (Vienna) in the search for the exotic particle, made up entirely of gluons -- the "sticky" particles that keep nuclear (quarks) particles together.

According to Science Daily:

For decades, scientists have been looking for so-called "glueballs." Now it seems they have been found at last. A glueball is an exotic particle, made up entirely of gluons -- the "sticky" particles that keep nuclear particles together. Glueballs are unstable and can only be detected indirectly, by analysing their decay. This decay process, however, is not yet fully understood.

Professor Anton Rebhan and Frederic BrĂ¼nner from TU Wien (Vienna) have now employed a new theoretical approach to calculate glueball decay. Their results agree extremely well with data from particle accelerator experiments. This is strong evidence that a resonance called "f0(1710)," which has been found in various experiments, is in fact the long-sought glueball. Further experimental results are to be expected in the next few months.

[...] Gluons can be seen as more complicated versions of the photon. The massless photons are responsible for the forces of electromagnetism, while eight different kinds of gluons play a similar role for the strong nuclear force. However, there is one important difference: gluons themselves are subject to their own force, photons are not. This is why there are no bound states of photons, but a particle that consists only of bound gluons, of pure nuclear force, is in fact possible.

[...] "Our calculations show that it is indeed possible for glueballs to decay predominantly into strange quarks," says Anton Rebhan. Surprisingly, the calculated decay pattern into two lighter particles agrees extremely well with the decay pattern measured for f0(1710). In addition to that, other decays into more than two particles are possible. Their decay rates have been calculated too.

[...] Up until now, these alternative glueball decays have not been measured, but within the next few months, two experiments at the Large Hadron Collider at CERN (TOTEM and LHCb) and one accelerator experiment in Beijing (BESIII) are expected to yield new data.


Original Submission

 
This discussion has been archived. No new comments can be posted.
Display Options Threshold/Breakthrough Mark All as Read Mark All as Unread
The Fine Print: The following comments are owned by whoever posted them. We are not responsible for them in any way.
  • (Score: 2) by NotSanguine on Monday October 19 2015, @11:57PM

    by NotSanguine (285) <NotSanguineNO@SPAMSoylentNews.Org> on Monday October 19 2015, @11:57PM (#252113) Homepage Journal

    It is something interesting, although there's still maybes in there. I'm not convinced there's a need for a byline from janrinok though.

    Its not a subject that's going to get much on-topic discussion even in the best of circumstances, perhaps a "Like" and "Disike" button for logged in users on each story would allow us to express gratitude in a more useful way.

    As I mentioned, submitting this article was to get the info out there to those who might be interested. If you're not, just ignore it. Is this story using bits you had earmarked for something else?

    Would you have been happier if I'd submitted this article [sciencemag.org] instead? I suppose it might connect more widely with the readership. But is that the whole point here? To maintain a narrow focus on articles that will drive page views and comments?

    Is there wide appeal for this article here? Not sure. I suspect many people either are intimidated by the topic or just aren't interested. Nothing forces them to interact with the story. One came out an hour or two before it, and one came out an hour or two after it.

    Even if (and clearly there hasn't been) no substantive discussion takes place, I suspect there will be at least a few people who will read TFA and perhaps some will even have access to read the full paper.

    --
    No, no, you're not thinking; you're just being logical. --Niels Bohr
    Starting Score:    1  point
    Karma-Bonus Modifier   +1  

    Total Score:   2