What is S = –2 hypernuclei and its nuclear emulation?

i saw thisExperimental status of S = –2 hypernucle
Kazuma NAKAZAWA
Physics Department, Gifu University, Gifu 501-1193, Japan

link

https://journals.jps.jp/doi/pdf/10.7566/JPSCP.17.031001

and i would like to know more

its nuclear emulation

especially

page 3



from page 3

https://journals.jps.jp/doi/pdf/10.7566/JPSCP.17.031001

what is V ? figure 3

by nuclear emulation V has mass 16-17 MeV and decay in to charged particles

kodama said:

View attachment 338041

from page 3

https://journals.jps.jp/doi/pdf/10.7566/JPSCP.17.031001

what is V ? figure 3

by nuclear emulation V has mass 16-17 MeV and decay in to charged particles

Not "V has mass". V has dimension of mass/energy.
Are you asking what is V or what is V₀? These are different things (see equation (2)).
From my reading, V seems to be the actual binding energy of Ξ^-. V₀ is the total potential well depth - counting both the binding energy and zero point energy.

snorkack said:

Not "V has mass". V has dimension of mass/energy.
Are you asking what is V or what is V₀? These are different things (see equation (2)).
From my reading, V seems to be the actual binding energy of Ξ^-. V₀ is the total potential well depth - counting both the binding energy and zero point energy.

but it decay in to 2 in to charged particles-(electron ?)

kodama said:

by nuclear emulation V has mass 16-17 MeV and decay in to charged particles

V is a potential. It's not a particle and it doesn't decay to anything.
##\Xi^-## bound in nuclei decay to other things.

mfb said:

V is a potential. It's not a particle and it doesn't decay to anything.
##\Xi^-## bound in nuclei decay to other things.

is ##\Xi^-## a particle

kodama said:

is ##\Xi^-## a particle

Yes, it is.
Decay to electron is allowed but low probability. For a lone Λ, decay to electron has a branching ratio of 0,083%

snorkack said:

Yes, it is.
Decay to electron is allowed but low probability. For a lone Λ, decay to electron has a branching ratio of 0,083%

the reason I ask

https://www.linkedin.com/posts/robe...r-neutrinos-activity-7112652431959674880-687A

kodama said:

the reason I ask

https://www.linkedin.com/posts/robe...r-neutrinos-activity-7112652431959674880-687A

That I don´t think likely at all.
Late 1940s and 1950s were "particle zoo" period. Scientists had no clue what particles exist, they had not yet spotted the quark model periodicity system, so they had eyes open for any new particles they could see.
If there were any exotic particles, charged and low energy but with such a low formation cross-section that it was missed through 1950s, it is a weird coincidence that one should have been spotted back in 1946 and then none in 1950s.

On the other hand, 17 MeV quite fits the explanation in the article - potential well depth (baryon binding energy in nucleus+the zero point energy) and the binding energies of the stronger bound nuclei (like α) are in that region!

snorkack said:

That I don´t think likely at all.
LIf there were any exotic particles, charged and low energy

*uncharged but decay e+e-

snorkack said:

On the other hand, 17 MeV quite fits the explanation in the article - potential well depth (baryon binding energy in nucleus+the zero point energy) and the binding energies of the stronger bound nuclei (like α) are in that region!

not likely at all but it is possible 17 MeV could be a new unknown fundamental particle a boson?

kodama said:

but it is possible 17 MeV could be a new unknown fundamental particle a boson?

And what answer do you expect?

weirdoguy said:

And what answer do you expect?

not likely at all could suggest a possible exploration

in Bayesian theory

if
arXiv:2311.18632 (hep-ex)
Observation of structures at ∼17 and ∼38 MeV/c2 in the γγ invariant mass spectra in pC, dC, and dCu collisions at plab of a few GeV/c per nucleon
Kh.U. Abraamyan, Ch. Austin, M.I. Baznat, K.K. Gudima, M.A. Kozhin, S.G. Reznikov, A.S. Sorin

is true

and
arXiv:2308.06473 (nucl-ex)
[Submitted on 12 Aug 2023]
Observation of the X17 anomaly in the decay of the Giant Dipole Resonance of 8Be
A.J. Krasznahorkay,
what could be the 17 MeV in
Experimental status of S = –2 hypernucle
Kazuma NAKAZAWA
Physics Department, Gifu University, Gifu 501-1193, Japan

multiple experiment with 17 MeV decay in to e+e-