Double-charm tetraquark

In this article, we will address the exciting topic of Double-charm tetraquark, which has generated great interest and debate in different areas. From its origins to the present, Double-charm tetraquark has been the subject of study and analysis, which has allowed us to gain a deeper understanding of its characteristics and repercussions on society. Along these lines, we will explore the different aspects related to Double-charm tetraquark, from its impact on the economy to its effects on the social and cultural sphere. In addition, we will examine the various perspectives and opinions that have been expressed about Double-charm tetraquark, with the aim of offering a comprehensive and enriching vision of this controversial topic.

Double-charm tetraquark
Classificationmeson
Composition2 charm quarks
1 up antiquark
1 down antiquark
Statisticsbosonic
Familyhadron
Mass3868±124 MeV/c2[1]
Mean lifetime1.35+0.31
−0.21×10−21 s[1]
Electric charge+1
Spin1+[1]
Isospin0[2]

The double-charm tetraquark (T+
cc, ccud) is a type of long-lived tetraquark that was discovered in 2021 in the LHCb experiment conducted at the Large Hadron Collider.[3][4][2][5] It contains four quarks: two charm quarks, an anti-up and an anti-down quark.[1]

It has a theoretical computed mass of 3868±124 MeV/c2.[1] The discovery showed an exceptionally strong peak, with 20-sigma significance.[6]

It is hypothesized that studying the behavior of the double-charm tetraquark may play a part in explaining the behavior of the strong force.[7] Following the discovery of the T+
cc, researchers now plan experiments to find its double-beauty counterpart Tbb.[8] This tetraquark has been found to have a longer lifespan than most known exotic-matter particles.

References

  1. ^ a b c d e Agaev, S.S.; Azizi, K.; Sundu, H. (February 2022). "Newly observed exotic doubly charmed meson ". Nuclear Physics B. 975: 115650. arXiv:2108.00188. doi:10.1016/j.nuclphysb.2022.115650. S2CID 236772263.
  2. ^ a b Aaij, R.; Abdelmotteleb, A. S. W.; Abellán Beteta, C.; Abudinen Gallego, F. J.; Ackernley, T.; Adeva, B.; Adinolfi, M.; Afsharnia, H.; Agapopoulou, C.; Aidala, C. A.; Aiola, S. (2022-06-16). "Observation of an exotic narrow doubly charmed tetraquark". Nature Physics. 18 (7): 751–754. arXiv:2109.01038. Bibcode:2022NatPh..18..751L. doi:10.1038/s41567-022-01614-y. ISSN 1745-2481. S2CID 237385202.
  3. ^ "What to Know About the Newly Discovered Tetraquark at the Large Hadron Collider". Gizmodo. 2 August 2021. Retrieved 2021-09-27.
  4. ^ "Twice the charm: long-lived exotic particle discovered". CERN. Retrieved 2021-09-29.
  5. ^ Aaij, R.; Abdelmotteleb, A. S. W.; Beteta, C. Abellán; Gallego, F. J. Abudinen; Ackernley, T.; Adeva, B.; Adinolfi, M.; Afsharnia, H.; Agapopoulou, C.; Aidala, C. A.; Aiola, S. (2022-06-16). "Study of the doubly charmed tetraquark T⁺_cc". Nature Communications. 13 (1): 3351. doi:10.1038/s41467-022-30206-w. ISSN 2041-1723. PMC 9203551. PMID 35710739.
  6. ^ "LHCb experiment spots extraordinary double charmed tetraquark". Nikhef. Retrieved 2021-09-27.
  7. ^ Wood, Charlie (2021-09-27). "'Impossible' Particle Discovery Adds Key Piece to the Strong Force Puzzle". Quanta Magazine. Retrieved 2021-09-27.
  8. ^ Turner, Ben (2021-08-05). "New 'doubly charming' particle could help unlock the secrets of how matter is built". livescience.com. Retrieved 2021-09-27.


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