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The electroweak sector in superstring models
Institution:1. Integrated Circuits Design Laboratory, Department of Electrical Engineering, Amirkabir University of Technology (Tehran Polytechnic), P.O. 15875-4413, Tehran, Iran;2. Department of Electrical Engineering, Yazd University, Yazd, Iran;1. Department of Biology, York Biomedical Research Institute, University of York, York, United Kingdom;15. Integration Center of Traditional Chinese and Modern Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan;p. School of Post‑Baccalaureate Chinese Medicine, College of Medicine, Tzu Chi University, Buddhist Tzu Chi Medical Foundation, Hualien, 97004, Taiwan;1. Rocky Mountain Regional Brain Injury System, Craig Hospital, Englewood, CO;2. Traumatic Brain Injury Model Systems National Statistical and Data Center, Englewood, CO;3. Rusk Institute for Rehabilitation Medicine, New York University Langone School of Medicine, New York, NY;4. University of Washington, Seattle, WA;5. Moss Rehabilitation Research Institute, Elkins Park, PA;6. Santa Clara Valley Medical Center, Rehabilitation Research Center, San Jose, CA;7. Department of Physical Medicine and Rehabilitation, Indiana University, Indianapolis, IN;8. Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Harvard Medical School, Boston, MA;9. Department of Speech-Language Pathology and Audiology, Northeastern University, Boston, MA;10. The Institute for Rehabilitation and Research Memorial Hermann, Houston, TX;11. Baylor College of Medicine, Houston, TX
Abstract:Phenomenological constraints on the extra low-mass neutral gauge boson Z′ of present superstring models are presented and shown to imply a very fine tuning of the parameters involved in the Higgs potential.
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