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Baryon spectrum from superconformal quantum mechanics and its light-front holographic embedding.

Authors :
Téramond, Guy F. de
Dosch, Hans Günter
Brodsky, Stanley J.
Source :
Physical Review D: Particles, Fields, Gravitation & Cosmology. Feb2015, Vol. 91 Issue 4-B, p045040-1-045040-14. 14p.
Publication Year :
2015

Abstract

We describe the observed light-baryon spectrum by extending superconformal quantum mechanics to the light front and its embedding in AdS space. This procedure uniquely determines the confinement potential for arbitrary half-integer spin. To this end, we show that fermionic wave equations in AdS space are dual to light-front supersymmetric quantum-mechanical bound-state equations in physical space-time. The specific breaking of conformal invariance explains hadronic properties common to light mesons and baryons, such as the observed mass pattern in the radial and orbital excitations, from the spectrum generating algebra. The holographic embedding in AdS also explains distinctive and systematic features, such as the spin-J degeneracy for states with the same orbital angular momentum, observed in the light-baryon spectrum. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
24700010
Volume :
91
Issue :
4-B
Database :
Academic Search Index
Journal :
Physical Review D: Particles, Fields, Gravitation & Cosmology
Publication Type :
Periodical
Accession number :
102129881
Full Text :
https://doi.org/10.1103/PhysRevD.91.045040