Parity-doubling chiral solitons with vector mesons |
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| Affiliation: | 1. School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China;2. School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China;3. Department of Physics and Engineering Physics, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E2, Canada;4. School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China;5. Research Center for Hadron and CSR Physics, Lanzhou University and Institute of Modern Physics of CAS, Lanzhou 730000, China;6. Collaborative Innovation Center of Quantum Matter, Beijing 100871, China;7. Center of High Energy Physics, Peking University, Beijing 100871, China;1. Physics Department, Center for Theoretical Physics & Institute for Strings, Cosmology, and Astroparticle Physics, Columbia University, New York, NY 10027, USA;2. Theory Center, Thomas Jefferson National Accelerator Facility, 12000 Jefferson Avenue, Newport News, VA 23606, USA;3. Dipartimento di Fisica and INFN, “Sapienza” Università di Roma, P.le A. Moro 2, I-00185 Roma, Italy;4. CERN, Theory Department, Geneva 1211, Switzerland;1. Atominstitut, Technische Universität Wien, Stadionallee 2, A-1020 Wien, Austria;2. Indiana University, Bloomington, IN 47408, USA;3. Center for Exploration of Energy and Matter, Indiana University, Bloomington, IN 47408, USA |
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| Abstract: | We argue the presence of new classical solutions with spontaneous parity violation in chiral soliton models coupled with vector fields. Using a variational method, we find that these solutions become stable minima when a coupling of a fourth-order stabilizing term is larger than a critical value. These form an almost degenerate parity doublet via tunneling effects at the semi-classical level. |
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