In particle physics, heptaquarks are a family of hypothetical composite particles, each consisting of seven quarks or antiquarks of any flavours.1234
Properties
One model predicts that the lowest-energy heptaquark state would be a spin-1/2 or spin-3/2 state of energy roughly 2.5 GeV.5 Another study found that the most stable heptaquark would include three strange quarks and two strange antiquarks.6
References
References
- Issues in Nuclear, High Energy, Plasma, Particle, and Condensed Matter Physics: 2011 Edition. ScholarlyEditions. 2012. p. 606. ISBN 978-1-4649-6365-0. Retrieved 23 June 2020.
- Hadron Spectroscopy. American Institute of Physics. 2003. p. 470. ISBN 978-0-7354-0197-6. Retrieved 23 June 2020.
- Bijker, Roelof; Casten, R.; Frank, Alejandro (2004). Nuclear Physics, Large and Small: International Conference on Microscopic Studies of Collective Phenomena. American Institute of Physics. p. 244. ISBN 978-0-7354-0207-2. Retrieved 23 June 2020.
- Hosaka, Atsushi; Hotta, Tomoaki (2005). Pentaquark04 - Proceedings Of The International Workshop. World Scientific. p. 393. ISBN 978-981-4480-35-2. Retrieved 23 June 2020.
- Nuñez V., M.; Lerma H., S.; Hess, P. O.; Jesgarz, S.; Civitarese, O.; Reboiro, M. (23 August 2004). "Modeling pentaquark and heptaquark states". Physical Review C. 70 (2) 025201. arXiv:nucl-th/0405052. Bibcode:2004PhRvC..70b5201N. doi:10.1103/PhysRevC.70.025201. S2CID 119393500.
- Park, Aaron; Park, Woosung; Lee, Su Houng (30 August 2017). "Heptaquarks with two heavy antiquarks in a simple chromomagnetic model". Physical Review D. 96 (3) 034029. arXiv:1706.10025. Bibcode:2017PhRvD..96c4029P. doi:10.1103/PhysRevD.96.034029. ISSN 2470-0010. S2CID 119445036.