Hadronic superpartners from superconformal and supersymmetric algebra (2018)
- Authors:
- Autor USP: NIELSEN, MARINA - IF
- Unidade: IF
- Subjects: CROMODINÂMICA QUÂNTICA; SUPERSIMETRIA
- Language: Português
- Abstract: Through the embedding of superconformal quantum mechanics into AdS space, it is possible to construct an e®ective supersymmetric QCD light-front Hamiltonian for hadrons, which includes a spin-spin interaction between the hadronic constituents. A speci¯c breaking of conformal symmetry determines a unique e®ective quark-con¯ning potential for light hadrons, as well as remarkable connections between the meson, baryon, and tetraquark spectra. The pion is massless in the chiral limit and has no supersymmetric partner. The excitation spectra of relativistic light-quark meson, baryon and tetraquark bound states lie on linear Regge trajectories with identical slopes in the radial and orbital quantum numbers. Although heavy quark masses strongly break conformal symmetry, supersymmetry and the holographic embedding of semiclassical light-front dynamics still holds. Therefore, the basic underlying supersymmetric mechanism, which transforms meson- baryon and baryon-tetraquark wave functions into each other, can also be applied to the double-heavy sector; one can then successfully relate the masses of the double-heavy mesons to double-heavy baryons and tetraquarks. The dependence of the con¯ning potential on the hadron mass scale agrees completely with the one derived in heavy light systems from heavy quark symmetry. We also make predictions for higher excitations of the charmonium and bottomonium states. In particular, the remarkable equality of the Regge slopes in the orbital angular momentum, L, and the principal quantum number, n, is predicted to remain valid. We also show that all the observed hadrons can be related through this e®ective supersymmetric QCD, and that it can be used to identify the structure of the new charmonium states.
- Imprenta:
- Source:
- Título do periódico: Resumos
- Conference titles: Brazilian Meeting on Nuclear Physics
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ABNT
NIELSEN, Marina e BRODSKY, S. J. Hadronic superpartners from superconformal and supersymmetric algebra. 2018, Anais.. São Paulo: Instituto de Física, Universidade de São Paulo, 2018. Disponível em: https://sec.sbfisica.org.br/eventos/rtfnb/xli/programa/trabalhos.asp?sesId=4. Acesso em: 24 abr. 2024. -
APA
Nielsen, M., & Brodsky, S. J. (2018). Hadronic superpartners from superconformal and supersymmetric algebra. In Resumos. São Paulo: Instituto de Física, Universidade de São Paulo. Recuperado de https://sec.sbfisica.org.br/eventos/rtfnb/xli/programa/trabalhos.asp?sesId=4 -
NLM
Nielsen M, Brodsky SJ. Hadronic superpartners from superconformal and supersymmetric algebra [Internet]. Resumos. 2018 ;[citado 2024 abr. 24 ] Available from: https://sec.sbfisica.org.br/eventos/rtfnb/xli/programa/trabalhos.asp?sesId=4 -
Vancouver
Nielsen M, Brodsky SJ. Hadronic superpartners from superconformal and supersymmetric algebra [Internet]. Resumos. 2018 ;[citado 2024 abr. 24 ] Available from: https://sec.sbfisica.org.br/eventos/rtfnb/xli/programa/trabalhos.asp?sesId=4 - Qcd sum rules for 'SIGMA' hyperons in nuclear matter
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