Lamb Balance: Proving the Value of Recoil-Lamb Corrections to Energy Levels

  • Thread starter arivero
  • Start date
  • Tags
    Balance
In summary, the conversation discusses the Lamb Balance conjecture, which proposes that when a mass M is increased to be greater than a boson field mass M', there will be a noticeable loss of stability in the more external energy levels. This can be observed through experiments with neutron skins, which occur near the neutron dripline. The first results of this research suggest that the jump in energy levels at certain magic numbers, particularly 175 GeV, could be explained by the existence of a top quark or a beyond standard model boson. The conversation also touches on the role of the W particle and the Higgs in this phenomenon, and speculates on the possibility of a THDM model of symmetry breaking. Further research is needed to fully understand
  • #1
arivero
Gold Member
3,429
140
I am calling "lamb balance" to the conjecture of recoil-lamb corrections to the energy levels between two particles of different mass M, m, when the small particle m has an additional coupling to a boson field of mass M' near to M. The link between M and m can be any coulombian or Yukawian field, in principle.

One expects that when increasing M to be greater than M' the correction increases sharply and the corresponding loss of stability in the more external levels is noticeable.

This way should let you to "weight" the mass of M'.

The Lamb Balance is a conjecture because of two reasons:

-People has not seen the utility of calculating Lamb+Recoil effects in this specific case of a massive field coupled only to one of the particles.

-There are not, as far as I know, quantum experiments able to control the weight of the recoiling particle M.

Lately I speculated that neutron skins (kind of populated halos) could be the appropriate experiment. There, the more external nucleons are far off from the rest of the nucleus, and the momenta exchanged is small. So in this very peculiar case the rest of the nucleus can be considered roughly as a single recoiling particle of mass M_A.

These skins happen near the neutron dripline. So it is reasonable postulate that if the Lamb Balance works, we will notice a change in levels each time that the drip line crosses the value of a massive boson field. In a symmetrical way, and allthough the Coulomb barrier minimises the possibility of proton skins, it was also sensible to consider if the proton drip line presents the same effect.

(Here, one should stop a moment to consider that meson-exchange models of force are not able yet to reproduce accurately the effects needed to calculate nuclear masses. Until ten years ago computational effort could be blamed, but today there are empirical models of force (Skirme etc) that are able to reproduce fairly the spectra of nuclear masses, so calculation is no more an excuse. Besides, these empirical models give us fairly confidence on the location of the drip lines)

The first results of this research have been summarised in figures 1 and 8 of hep-ph/0405076 v2. Figure 8 is more complete, and some small progress could have occurred since I drawn it. Let me to go from the firm points to the more speculative ones:

In the neutron dripline, the jump N=126 happens at a mass of about 175 Gev.
In the proton dripline, the jump P=50 happens at the mass of Z0 boson, and the jump P=82 happens at a mass of about 175 GeV.

In the neutron dripline, the jump N=82 happens at a mass of about 115 GeV, and the jump N=184 happens at the mass of 246 GeV.
In the proton dripline, the jump P=114 happens at the mass of 246 GeV.

First stop to identify these values. 175 GeV is singularised in the standard model as the mass of the Top quark. The very short lived mesons composed from it should also have masses in this range. Another possibility is a beyond standard model boson degenerated in mass with the mass of top.

246 GeV is the vacuum expected value of the higgs *field* in the current electroweak model. No particle is expected there -except if the higgs coupling is unity- in the standard model, but anyway it is a known mass scale coming from the electroweak model.

115 GeV is the mass scale at which an anomalous excess was detected in ALEPH, at CERN, some years ago, and expected to be a neutral boson.

If you have followed me until here, you can have a couple of criticisms:
Does the W particle has a role to play here? What happens with the Higgs at the proton dripline and, for the same token, with the Z0 at the neutron dripline?

The second question seems to be answered by recalling the existence of semi-magic numbers. At the proton side of the Higgs, already Klinkenberg noticed a very strong competition between g7/2 and d5/2. At the neutron side of the Z, a semimagic n=64 could be researched. The small role of the Higgs could be simply a indication of a mass of the up quark lower than the one of the down, so the Higgs coupling to protons is weaker than to neutrons after all.

As for the W, it is a peculiar particle because it is the responsible of beta decay, thus it is unclear if the Lamb Balance, as naively built, applies to it.

One could also speculate if the W peculiarity let's it to contribute for magicities a bit below its natural scale, namely the ones of Z=40 (semimagic but very noticeable) and N=50. But for this scale the CERN has also a 2.5 sigma candidate in the closet, namely the 69 GeV excess of hep-ex/0105057, hep-ex/0309056, which has been discarded mainly because it does not decay to leptons as well as SUSY wants, and because it disagrees with current MSSM fashions. With a charged higgs like boson covering these two magic numbers, the role W could reduce simply to small perturbations in levels near its natural area, in hard competition with its usual beta decay; and perhaps some additional contribution to Z=50.

To conclude:

-At different speculation levels, the nuclear lamb balance is able to fit all the magic numbers beyond 28 in neutron and proton drip lines.

-At his highest speculative level, the balance favours a THDM, not MSSM, model of symmetry breaking, where the mass of the charged higgs is smaller than mass of Z0, the mass of the top is degenerated with one of the extant bosons, and another one remains at exactly the value of the vacuum of the current minimal higgs mechanism.

-at progressive speculation levels, the nuclear lamb balance favours both the 115 GeV excess and the 69 GeV excess measured by LEP.

Alejandro.
 

Attachments

  • radio2.jpg
    radio2.jpg
    14 KB · Views: 416
Physics news on Phys.org
  • #2
I have around http://dftuz.unizar.es/~rivero/research/LS9530.pdf [Broken] on this. Enjoy.
 
Last edited by a moderator:

1. What is the Lamb Balance method?

The Lamb Balance is a scientific method used to accurately measure the energy levels of atoms. It involves comparing the recoil energy of an electron emitted by an atom to the energy levels of the atom itself.

2. What is the significance of the Lamb Balance method?

The Lamb Balance method is significant because it allows for precise measurement of energy levels in atoms, which is crucial for understanding atomic structure and behavior. It also helps to validate the theory of quantum electrodynamics, which describes the interactions between charged particles and electromagnetic fields.

3. How does the Lamb Balance method work?

The Lamb Balance method involves using a device called a "Lamb Shift Apparatus" that can measure the energy levels of atoms by comparing the recoil energy of an electron emitted by the atom to a known energy source. This allows for the calculation of the energy levels of the atom itself.

4. What are the benefits of using the Lamb Balance method?

The benefits of using the Lamb Balance method include its high precision and accuracy in measuring energy levels, as well as its ability to validate the principles of quantum electrodynamics. It also allows for the study of atomic structure and behavior in more detail, leading to a better understanding of the fundamental building blocks of matter.

5. What are the potential applications of the Lamb Balance method?

The Lamb Balance method has potential applications in various fields, including fundamental research in physics, precision measurements in metrology, and technological advancements in areas such as atomic clocks and quantum computing. It also has potential for use in developing new materials and technologies based on a deeper understanding of atomic energy levels.

Similar threads

  • High Energy, Nuclear, Particle Physics
Replies
11
Views
1K
  • High Energy, Nuclear, Particle Physics
Replies
2
Views
2K
Replies
1
Views
2K
  • Other Physics Topics
Replies
0
Views
682
  • Beyond the Standard Models
3
Replies
74
Views
9K
  • Beyond the Standard Models
Replies
1
Views
2K
  • High Energy, Nuclear, Particle Physics
Replies
1
Views
696
  • Beyond the Standard Models
2
Replies
39
Views
4K
  • High Energy, Nuclear, Particle Physics
Replies
1
Views
3K
  • Beyond the Standard Models
Replies
18
Views
3K
Back
Top