Coalescence between a neutron and a K+ meson

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I think it is simply the coalescence between a neutron and a K+ meson. What are your thoughts?
 
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sounds logical
 

jcsd

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Looking at it's quark content (uudds) it's obvious it has the same quark content as a neutron and a K+ indeed those are the two particles it decays into, I'm not sure how it's formed though.
 
49
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I have read that it is formed when gamma rays are directed at a heavy hydrogen nuclei and what happens next is beyond me
 
499
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It is merely the coalescence of the neutron and the K+ meson. I believe that is what the original article on this read awhile ago.
 
49
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So if the pentaquark particle decays in to a neutron and a K+ meson then it is unstable. Would anyone happen to know its half life?
 
49
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So if the pentaquark particle decays in to a neutron and a K+ meson then it is unstable. Would anyone happen to know its half life?
 

jcsd

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IIRC it's thought to be about 10-20 which is pretty short even for an elementary particle.
 

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