Does B^0 Meson Decay at LHC Rule Out Low-Energy SUSY?

  • Context: Graduate 
  • Thread starter Thread starter AbdulQat
  • Start date Start date
  • Tags Tags
    Decay Lhc Meson
Click For Summary
SUMMARY

The decay of the B^0 meson into two muons at a precision of 3 ppb does not definitively rule out low-energy Supersymmetry (SUSY). Instead, the measurement of the branching ratio for B_s → μ^+μ^- should primarily be interpreted as a validation of the Standard Model (SM). While the SM has successfully passed this test, the uncertainty in the results necessitates further investigation. It is essential to consider that low-energy SUSY may still exist, particularly in specific parameter spaces such as large tan(β).

PREREQUISITES
  • Understanding of B meson decay processes
  • Familiarity with the Standard Model of particle physics
  • Knowledge of Supersymmetry (SUSY) concepts
  • Basic grasp of branching ratios and their significance in particle physics
NEXT STEPS
  • Research the implications of B_s → μ^+μ^- decay on the Standard Model
  • Explore the parameter space of low-energy SUSY, focusing on tan(β)
  • Study recent updates and measurements from the Large Hadron Collider (LHC)
  • Investigate alternative methods for detecting low-energy SUSY beyond B meson decays
USEFUL FOR

Particle physicists, researchers in theoretical physics, and anyone interested in the implications of B meson decay on Supersymmetry and the Standard Model.

AbdulQat
Messages
4
Reaction score
0
Does the decay of B0 meson into two muons at the 3 ppb level,
imply that this test for low-energy SUSY has failed?
 
Physics news on Phys.org
I think that the measurement of the branching ratio for ##B_s\to\mu^+\mu^-## should be seen as a test of the SM rather than of low-energy SUSY. In this context the SM seems to have once again passed this test, although the uncertainty of the result means that we still need to wait for future updates before the real picture becomes clear.

In the context of low-energy SUSY ##B_s\to\mu^+\mu^-## is a good place to find a hint, but only for some particular part of parameter space, e.g. large ##\tan\beta## etc. So the agreement of this single result with the SM expectation doesn't necessarily mean that low-energy SUSY isn't a reality, we may just need to look elsewhere before we find it.
 

Similar threads

Undergrad Decay of the Bs0 meson latest LHC results 7.8 sigma
  • · Replies 2 ·
Replies
2
Views
2K
Graduate What would falsify supersymmetry? LHC Nightmare scenario
  • · Replies 13 ·
Replies
13
Views
4K
Graduate Can B and L Violation Explain Meson to Lepton Decay?
  • · Replies 7 ·
Replies
7
Views
2K
Graduate Hints for lepton flavor violation in B-hadron decays
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad Is SUSY still a possibility with current EDM limits and energy constraints?
  • · Replies 3 ·
Replies
3
Views
3K
Undergrad Is there a fine structure constant running anomaly?
  • · Replies 2 ·
Replies
2
Views
4K
Undergrad LHC run 2, does Supersymmetry worsen hierarchy fine tuning
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Implications of a new 17 Mev vector boson on Higgs, SUSY
  • · Replies 74 ·
3
Replies
74
Views
11K
Undergrad Is Toponium a Reality Despite Top Quark's Rapid Decay?
  • · Replies 9 ·
Replies
9
Views
1K
Undergrad Is there new LHC data on coupling constant running?
  • · Replies 1 ·
Replies
1
Views
3K