E(38) boson
| Composition | Unknown |
|---|---|
| Statistics | Bosonic |
| Status | Under debate |
| Symbol | E38 |
| Discovered | August 2012 (Joint Institute for Nuclear Research) |
| Mass | 38 MeV/c2 |
| Decays into | 2 photons |
| Electric charge | 0 |
| Spin | Unknown |
The E(38) boson (or E38 boson) is a particle with a mass of approximately 38 MeV/c2, whose existence has been claimed to be verified in August 2012 by the Joint Institute for Nuclear Research nuclotron. The discovery has a significance of around 5 sigma.[1]
With a mass of about 38 MeV/c2, the E(38) boson is the lightest nuclear particle known. It is about 3.5 times lighter than the neutral pion, which is the lightest known nuclear particle so far, and about 25 times less heavy than a proton.
The E(38) boson was first mentioned in February 2011.[2] A very clear signal for its existence was reported in February 2012.[3]
Nevertheless, to date, its existence is still under debate.[4]
Theory
The discovery of the E38 particle has been considered not to be predicted by the standard model.[1] One suggestion is that the boson is the higgs boson of the strong interaction.[5] Other models incorporating the E38 boson are being developed.
Criticism
The discovery has been criticized, in particular, questioning why the results are given in the paper with excessive decimal places.[6] Results similar to the ones produced in Dubna have been found by other accelerators, but were not as definitive.[1] A composite structure of the particle has been suggested, but it does not seem satisfactory at this point in time.
References
- ↑ 1.0 1.1 1.2 [http://www.science20.com/crawler_superland/e38_boson_understanding_Dubna_Measurements Joint Institute for Nuclear Research The E(38) Boson - Understanding The Dubna Measurements
- ↑ "First indications of the existence of a 38 MeV light scalar boson", E. van Beveren and G. Rupp (2011)
- ↑ "Material evidence of a 38 MeV boson", E. van Beveren and G. Rupp (2012)
- ↑ "Reply to Comment on Material evidence of a 38 MeV boson", E. van Beveren and G. Rupp (2012)
- ↑ http://cft.fis.uc.pt/eef/stronghiggs.htm
- ↑ My Take On The Would-Be Particle At 38 MeV My Take On The Would-Be Particle At 38 MeV
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