Long range forces induced by neutrinos at finite temperature |
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| Affiliation: | 1. Department of Physics, Center for Mathematics and Theoretical Physics, National Central University, Chungli, Taiwan 32001, Republic of China;2. Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, Republic of China;3. Physics Division, National Center for Theoretical Sciences, Hsinchu, Taiwan 30013, Republic of China;1. Department of Physics, H-27, Tokyo Institute of Technology, Meguro, Tokyo 152-8551, Japan;2. Advanced Science Research Center, JAEA, Tokai, Ibaraki 319-1195, Japan;3. Institute of High Energy Physics and Theoretical Physics Center for Science Facilities, Chinese Academy of Sciences, Beijing 100049, China;1. Centre of Excellence in Theoretical and Mathematical Sciences, Siksha ‘O’ Anusandhan, Deemed to be University, Khandagiri Square, Bhubaneswar 751030, India;2. Department of Physics, University of Calcutta, 92 Acharya Prafulla Chandra Road, Kolkata 700009, India;1. Nuclear Physics Institute, 250 68 Řež, Czech Republic;2. Helmholtz-Institut für Strahlen- und Kernphysik (Theorie) and Bethe Center for Theoretical Physics, Universität Bonn, D-53115 Bonn, Germany;3. Institute of Experimental and Applied Physics, Czech Technical University in Prague, Horská 3a/22, 128 00 Praha 2, Czech Republic;4. Institute for Advanced Simulation (IAS-4), Institut für Kernphysik (IKP-3) and Jülich Center for Hadron Physics, Forschungszentrum Jülich, D-52425 Jülich, Germany |
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| Abstract: | We revisit and extend previous work on neutrino mediated long range forces in a background at finite temperature. For Dirac neutrinos, we correct existing results. We also give new results concerning spin-independent as well as spin-dependent long range forces associated to Majorana neutrinos. An interesting outcome of the investigation is that, for both types of neutrinos whether massless or not, the effect of the relic neutrino heat bath is to convert those forces into attractive ones in the supra-millimeter scale while they stay repulsive within the sub-millimeter scale. |
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