Superconformal Baryon-Meson Symmetry and Light-Front Holographic QCD
- Institut fuer Theoretische Physik, Heidelberg (Germany)
- Universidad de Costa Rica, San Jose (Costa Rica)
- SLAC National Accelerator Laboratory, Menlo Park, CA (United States)
We construct an effective QCD light-front Hamiltonian for both mesons and baryons in the chiral limit based on the generalized supercharges of a superconformal graded algebra. The superconformal construction is shown to be equivalent to a semi-classical approximation to light-front QCD and its embedding in AdS space. The specific breaking of conformal invariance inside the graded algebra uniquely determines the effective confinement potential. The generalized supercharges connect the baryon and meson spectra to each other in a remarkable manner. In particular, the π/b1 Regge trajectory is identified as the superpartner of the nucleon trajectory. However, the lowest-lying state on this trajectory, the π-meson is massless in the chiral limit and has no supersymmetric partner.
- Research Organization:
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- AC02-76SF00515
- OSTI ID:
- 1168438
- Alternate ID(s):
- OSTI ID: 1177831
- Report Number(s):
- SLAC-PUB-16184; PRVDAQ; arXiv:1501.00959; TRN: US1600834
- Journal Information:
- Physical Review. D, Particles, Fields, Gravitation and Cosmology, Vol. 91, Issue 8; ISSN 1550-7998
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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