What Are Tetraquarks and Why Are They Important?

  • Context: Undergrad 
  • Thread starter Thread starter Kevin McHugh
  • Start date Start date
Click For Summary

Discussion Overview

The discussion centers on tetraquarks, their discovery, and their significance in particle physics. Participants explore the classification of these exotic particles and the implications of their existence within the context of current research and findings.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant requests an explanation of tetraquarks, their discovery, and implications.
  • Another participant references a specific thread about a new tetraquark state announced by Fermilab.
  • A different participant suggests a more detailed analysis from LHCb regarding tetraquarks.
  • One participant notes the renaming of the Y(4140) to X(4140) by the Particle Data Group and seeks clarification on the differences between X, Y, and Z classifications of these particles.
  • A later reply proposes a naming scheme where Z denotes charged states, X represents C even states, and Y indicates C odd states, while expressing uncertainty about the universality of this scheme.

Areas of Agreement / Disagreement

Participants express varying levels of understanding and seek clarification on the classification of tetraquarks, indicating that multiple views and uncertainties remain regarding the naming conventions and implications of these particles.

Contextual Notes

There are limitations in the discussion regarding the universality of the naming scheme for tetraquarks and the specific implications of their existence, which are not fully resolved.

Kevin McHugh
Messages
319
Reaction score
165
I just heard of these, can somebody explain what they are, how they were discovered, and the implications of their existence?
 
Physics news on Phys.org
Or better this from LHCb for a proper analysis (different state).
 
Thanks ZZ, I had not seen that. The DZero link was very informative.
 
I understand that these exotic particles are termed X Y and Z, and that the Y(4140) was recently renamed X(4140) by the Particle Data Group . Can someone explain the difference between X Y and Z please?
 
This paper with figure 2 would suggest Z for charged states, X for C even and Y for C odd states, but I don't know if that naming scheme is used universally, especially as these slides include a neutral Z (slide 11).
 

Similar threads

Undergrad What is the latest discovery in tetraquarks by LHCb?
  • · Replies 4 ·
Replies
4
Views
3K
Graduate CERN fails to confirm Fermilab tetraquark discovery-why?
  • · Replies 5 ·
Replies
5
Views
2K
Graduate CP Violation & Phase: Explained
  • · Replies 5 ·
Replies
5
Views
3K
Undergrad Glueballs Observed For The First Time
  • · Replies 10 ·
Replies
10
Views
5K
High School Are real theories undiscoverable from effective field theories?
  • · Replies 4 ·
Replies
4
Views
3K
Undergrad Antimatter-matter annihilation: significance of opposite charge
  • · Replies 21 ·
Replies
21
Views
5K
Graduate How Does Strong Force Interaction Influence 2s/2as Tetraquark Decay?
  • · Replies 3 ·
Replies
3
Views
5K
Undergrad Is Single Slit Diffraction Explained by the Heisenberg Uncertainty Principle?
  • · Replies 22 ·
Replies
22
Views
3K
Undergrad How Do Positrons Reach Cloud Chambers Without Annihilating?
  • · Replies 5 ·
Replies
5
Views
4K
Undergrad Publications in Particle Physics
  • · Replies 3 ·
Replies
3
Views
2K