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Message 1704011 - Posted: 22 Jul 2015, 15:55:21 UTC - in response to Message 1703999.  
Last modified: 22 Jul 2015, 16:05:26 UTC

I kept the paper in my desk not to be confined to a psychiatric asylum.

That's funny Tullio. Max Tegmark used to do the same when he was a graduant student at KTH photo copying a lot of stuff about parallell universes.
http://space.mit.edu/home/tegmark/mathematical.html
https://www.facebook.com/pages/Max-Tegmark/461616050561921
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Message 1705485 - Posted: 27 Jul 2015, 6:09:56 UTC

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Message 1705548 - Posted: 27 Jul 2015, 10:40:22 UTC - in response to Message 1705485.  
Last modified: 27 Jul 2015, 10:40:54 UTC

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Thank's for the link that also gave me this link :)
https://www.kaggle.com/c/flavours-of-physics/data

The LHCb experiment will shed light on why we live in a universe that appears to be composed almost entirely of matter, but no antimatter

In a machine-learning challenge organised by CERN and Yandex Data Factory (a big data-analytics division of Russia’s leading web search provider Yandex), and hosted by the data-science website Kaggle, LHCb physicists invite you to help them investigate a rare phenomenon in particle physics for the chance to win up to $7000. The phenomenon in question? Charged-lepton flavour violation.

In this competition, you are given a list of collision events and their properties. You will then predict whether a τ → 3μ decay happened in this collision. This τ → 3μ is currently assumed by scientists not to happen, and the goal of this competition is to discover τ → 3μ happening more frequently than scientists currently can understand.

It is challenging to design a machine learning problem for something you have never observed before. Scientists at CERN developed the following designs to achieve the goal.
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Message 1706617 - Posted: 30 Jul 2015, 8:22:51 UTC - in response to Message 1703950.  
Last modified: 30 Jul 2015, 8:24:47 UTC

That's odd.. Why would there be a difference in how matter interacts on a quantum scale or astronomical scale, one might ask. Energies interact the same all over our Universe?

Electrons and protons revolve around the atom in their molecule, just as planets revolve around their star and stars revolve around the black hole at the centre of their milkyway. Sounds like a resemblance in my opinion.

well, there aren't...just Quantum physics is too complicated on large scale...
other theories work just well on large scale...

same as Newton laws do well with explaining a Gravity fields...unless we talk about LS or massive Black holes/Neutron stars, etc...

That's odd.. Why would there be a difference in how matter interacts on a quantum scale or astronomical scale, one might ask. Energies interact the same all over our Universe?
Electrons and protons revolve around the atom in their molecule, just as planets revolve around their star and stars revolve around the black hole at the centre of their milkyway. Sounds like a resemblance in my opinion.

There are no difference in how matter interacts on a quantum scale or astronomical scale.
But so far no theory can explain how it works.
Odd is an understatement in the Quantum World.
Einstein didn't understand it.
Richard Feynman once said something like this to his students "If you think you understand quantum mechanics, you don't understand quantum mechanics."
This is probably a paraphrase of the quote attributed to Niels Bohr: "Anyone who is not shocked by quantum theory has not understood it."

Maybe we have to search more in the field of energies then instead of concentrating on baryonic matter.

The "ability of a system to perform work" is a common description of energy.
But you cannot measure energy. Only calculate it when it's a property of objects.
Energy has no fields. If so energy could be detected.

Not exactly true...some energies emanate fields - so we can detect them by their fields! ;)

On similar principle we r searching 4 DM... ;)


non-profit org. Play4Life in Zagreb, Croatia, EU
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Message 1706931 - Posted: 31 Jul 2015, 9:27:38 UTC
Last modified: 31 Jul 2015, 9:28:57 UTC

In the July-August issue of CERN Courier there is an article on the SESAME synchrotron radiation source being built in Jordan as an example of Arab-Israeli-Cyprus-Egypt-Iran-Pakistan-Turkey cooperation under the auspices of UNESCO and CERN. Maybe particle accelerators have some usefulness outside of physics.
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Message 1706968 - Posted: 31 Jul 2015, 13:00:46 UTC - in response to Message 1706931.  
Last modified: 31 Jul 2015, 13:01:03 UTC

• Building scientific and cultural bridges between neighbouring countries, promoting mutual understanding and tolerance through international cooperation, and fostering a regional community of scientific users who will work together at SESAME.

The Members of SESAME are currently Bahrain, Cyprus, Egypt, Iran, Israel, Jordan, Pakistan, the Palestinian Authority and Turkey. The Observer countries are Brazil, China, France, Germany, Greece, Italy, Japan, Kuwait, Portugal, the Russian Federation, Spain, Sweden, Switzerland, the United Kingdom and the United States of America.

http://www.unesco.org/new/en/natural-sciences/science-technology/basic-sciences/international-basic-sciences-programme/sesame/
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Message 1706977 - Posted: 31 Jul 2015, 13:37:58 UTC - in response to Message 1706617.  

Why would there be a difference in how matter interacts on a quantum scale or astronomical scale,


It's the difference between discrete and continuous; macro and micro. Your automobile and an atom of iron. A magnetic field's effect on a battleship and an electron.
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Message 1709478 - Posted: 6 Aug 2015, 21:31:50 UTC

Could that be why matter and not anti-matter dominates?
http://www.nature.com/nature/journal/v524/n7563/full/524008b.html
Only subatomic particles with a left-handed spin decay as a result of one of the fundamental forces, confirming that the Universe has a left-hand bias.

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Message 1709490 - Posted: 6 Aug 2015, 22:06:10 UTC - in response to Message 1709478.  
Last modified: 6 Aug 2015, 22:09:39 UTC

Could that be why matter and not anti-matter dominates?
http://www.nature.com/nature/journal/v524/n7563/full/524008b.html
Only subatomic particles with a left-handed spin decay as a result of one of the fundamental forces, confirming that the Universe has a left-hand bias.

Once it was a war between matter and anti-matter and because nature is not perfect "our" matter won.

That the Universe has a left-hand bias needs to be explained...
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Message 1709533 - Posted: 7 Aug 2015, 0:29:09 UTC - in response to Message 1709490.  

Could that be why matter and not anti-matter dominates?
http://www.nature.com/nature/journal/v524/n7563/full/524008b.html
Only subatomic particles with a left-handed spin decay as a result of one of the fundamental forces, confirming that the Universe has a left-hand bias.

Once it was a war between matter and anti-matter and because nature is not perfect "our" matter won.

That the Universe has a left-hand bias needs to be explained...


If nothing goes right, go left?
We have nothing to fear but fear itself. Apart from pain. And maybe humiliation. And obviously death. And failure. But apart from fear, pain and humiliation, failure and the unknown and death - we have nothing to fear. Who’s with me?
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Message 1709619 - Posted: 7 Aug 2015, 5:50:05 UTC
Last modified: 7 Aug 2015, 5:51:00 UTC

If you are interested there is a CERN Summer Challenge going on at vLHC@home. But you need to have Virtual Box installed on your system.
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Message 1709659 - Posted: 7 Aug 2015, 9:28:12 UTC - in response to Message 1709533.  

Could that be why matter and not anti-matter dominates?
http://www.nature.com/nature/journal/v524/n7563/full/524008b.html
Only subatomic particles with a left-handed spin decay as a result of one of the fundamental forces, confirming that the Universe has a left-hand bias.

Once it was a war between matter and anti-matter and because nature is not perfect "our" matter won.

That the Universe has a left-hand bias needs to be explained...


If nothing goes right, go left?

Hehehe.

To make it worse. In the quantum world particles can spin both left and right at the same time. Superposition.
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Message 1709662 - Posted: 7 Aug 2015, 9:33:35 UTC - in response to Message 1709659.  
Last modified: 7 Aug 2015, 9:34:08 UTC

No, if you measure the spin of a particle it is either one way or another in the case of half integer spin (fermions).A photon can have 4 polarization states since its spin is one.
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Message 1709668 - Posted: 7 Aug 2015, 9:53:56 UTC - in response to Message 1709662.  
Last modified: 7 Aug 2015, 9:58:06 UTC

No, if you measure the spin of a particle it is either one way or another in the case of half integer spin (fermions).A photon can have 4 polarization states since its spin is one.
Tullio

That would mean that is impossible or perhaps useless to build quantum computers.
https://en.wikipedia.org/wiki/Quantum_superposition
Successful experiments involving superpositions of relatively large (by the standards of quantum physics) objects have been performed.[18]
http://physics.stackexchange.com/questions/3309/what-is-the-worlds-biggest-schrodinger-cat
A "cat state" has been achieved with photons.[19]
A beryllium ion has been trapped in a superposed state.[20]
A double slit experiment has been performed with molecules as large as buckyballs.[21][22]
An experiment involving a superconducting quantum interference device ("SQUID") has been linked to theme of the "cat state" thought experiment.[23]
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Message 1709671 - Posted: 7 Aug 2015, 10:05:36 UTC - in response to Message 1709668.  

The Intelligence Advanced Research Projects Agency (I believe it was called DARPA),USA, has called for researchers in quantum computing to submit projects and ask for money. Evidently they still believe in it. A friend of mine, Giuseppe Castagnoli it still working in this field and may be interested., Once I wrote an article with him and it was published in the Italian edition of MIT's Technology Review in 1996. I believe not much progress has been done since then.
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Message 1709672 - Posted: 7 Aug 2015, 10:09:08 UTC - in response to Message 1709671.  
Last modified: 7 Aug 2015, 10:14:05 UTC

The Intelligence Advanced Research Projects Agency (I believe it was called DARPA),USA, has called for researchers in quantum computing to submit projects and ask for money. Evidently they still believe in it. A friend of mine, Giuseppe Castagnoli it still working in this field and may be interested., Once I wrote an article with him and it was published in the Italian edition of MIT's Technology Review in 1996. I believe not much progress has been done since then.
Tullio

New largest number factored on a quantum device is 56,153 :)
http://phys.org/news/2014-11-largest-factored-quantum-device.html
"We're still a far way from outperforming classical computers," Dattani told Phys.org. "The highest RSA number factored on a classical computer was RSA-768, which has 768 bits, and took two years to compute (from 2007 to 2009)."
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Message 1710279 - Posted: 9 Aug 2015, 5:04:45 UTC - in response to Message 1435184.  

my understanding is that antimatter reacts with equal amounts of matter. If that is true the actual damage is quite small.


That may be the case but even a small Atomic explosion will do a lot of damage .

There is enough energy in the head of a mach stick to flatten a city and possibly the Earth .

E = M C squared
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Message 1710311 - Posted: 9 Aug 2015, 8:16:41 UTC

A meson is made up from a quark-antiquark pair. How come they do not annihilate?
Tullio
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Message 1710321 - Posted: 9 Aug 2015, 9:35:21 UTC - in response to Message 1710311.  

A meson is made up from a quark-antiquark pair. How come they do not annihilate?
Tullio


Quarks are strange things .

Like neutrinos
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Message 1710322 - Posted: 9 Aug 2015, 9:40:41 UTC

Tullio maybe Quarks are not matter but elemental bits so we see the same thing as what happens in the Qantum world .

scale , what happens on our scale does not happen on a Quantum scale , a different set of effects are seen
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