http://www.bbc.com/news/science-environment-33517492

Scientists at the Large Hadron Collider have announced the discovery of a new particle called the pentaquark.

It was first predicted to exist in the 1960s but, much like the Higgs boson particle before it, the pentaquark eluded science for decades until its detection at the LHC.

The discovery, which amounts to a new form of matter, was made by the Hadron Collider’s LHCb experiment.

The findings have been submitted to the journal Physical Review Letters.
-

dv said:

http://www.bbc.com/news/science-environment-33517492

Scientists at the Large Hadron Collider have announced the discovery of a new particle called the pentaquark.

It was first predicted to exist in the 1960s but, much like the Higgs boson particle before it, the pentaquark eluded science for decades until its detection at the LHC.

The discovery, which amounts to a new form of matter, was made by the Hadron Collider’s LHCb experiment.

The findings have been submitted to the journal Physical Review Letters.
-

——

You could post this finding on Wiki..

tauto said:

dv said:

http://www.bbc.com/news/science-environment-33517492

Scientists at the Large Hadron Collider have announced the discovery of a new particle called the pentaquark.

It was first predicted to exist in the 1960s but, much like the Higgs boson particle before it, the pentaquark eluded science for decades until its detection at the LHC.

The discovery, which amounts to a new form of matter, was made by the Hadron Collider’s LHCb experiment.

The findings have been submitted to the journal Physical Review Letters.
-

——

You could post this finding on Wiki..

Someone has

Are there any other particles to discover?

CrazyNeutrino said:

Are there any other particles to discover?

—-

Are you stringing us along?

nice

CrazyNeutrino said:

Are there any other particles to discover?

In the standard model, not many. There are always higher energy “resonance” particles of already known ones, but apart from that there aren’t many left.

There are T mesons “T mesons are hypothetical mesons composed of a top quark and either an up, down, strange or charm antiquark.” These haven’t been found yet. The combination of a top quark and top antiquark is toponium. Baryons (three quark particles) containing the top quark haven’t been found either. These may not exist at all, because the top quark decays so fast that it may not have time to form a meson or baryon.

Some particles containing bottom quarks have and some haven’t yet been seen. And perhaps we don’t even yet have a baryon with three charmed quarks or two charmed and a strange. Not found may include omega baryons with quark combination scc, scb, sbb, ccc,ccb, cbb, bbb.

So, taking the standard model, trusting wikipedia, and ignoring resonances, there may only be 7 subatomic particles not yet found.

dv said:

http://www.bbc.com/news/science-environment-33517492

Scientists at the Large Hadron Collider have announced the discovery of a new particle called the pentaquark.

It was first predicted to exist in the 1960s but, much like the Higgs boson particle before it, the pentaquark eluded science for decades until its detection at the LHC.

The discovery, which amounts to a new form of matter, was made by the Hadron Collider’s LHCb experiment.

The findings have been submitted to the journal Physical Review Letters.
-

There’s a paper on arXiv. http://arxiv.org/pdf/1507.03414.pdf

“The prospect of hadrons with more than the minimal quark content (qq or qqq) was
proposed by Gell-Mann in 1964, followed by a quantitative model for two quarks plus
two antiquarks developed by Jaffe in 1976. The idea was expanded upon by Strottman
in 1979 to include baryons composed of four quarks plus one antiquark; the name
pentaquark was coined by Lipkin. Past claimed observations of pentaquark states have
been shown to be spurious, although there is at least one viable tetraquark candidate,
the Z(4430)+ that has been observed in B0 decays, implying that the
existence of pentaquark baryon states would not be surprising. States that decay into
charmonium may have particularly distinctive signatures.

Evidence for the pentaquark has been seen in decays of the J/ψ particle. … The significances
of the lower mass and higher mass states are 9 and 12 standard deviations, respectively.”

That’s quite a high significance. See link to paper for more details.