TY - JOUR
T1 - Constraints on light particles from stellar evolution
AU - Ellis, John
AU - Olive, Keith A.
N1 - Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.
PY - 1983/8/15
Y1 - 1983/8/15
N2 - We examine the constraints imposed on the numbers and interactions of light particles by our understanding of the late stages of stellar evolution, including red giants, carbon-burning stars and cooling neutron stars. We show that these astrophysical considerations restrict the number of neutrino types to be less than 10+2±1. This result complements the standard constraints from cosmological nucleosynthesis, which was unable to exclude numbers of neutrinos between a few thousand and the best particle physics limit of order 105. We also investigate the constraints on supersymmetric theories with a light photino and gravitino, finding that the supersymmetry breaking scale parameter f>O(100GeV) and the selectron masses are >20 to 40 GeV. Finally, we study energy-loss rates by majoron and invisible axion emission.
AB - We examine the constraints imposed on the numbers and interactions of light particles by our understanding of the late stages of stellar evolution, including red giants, carbon-burning stars and cooling neutron stars. We show that these astrophysical considerations restrict the number of neutrino types to be less than 10+2±1. This result complements the standard constraints from cosmological nucleosynthesis, which was unable to exclude numbers of neutrinos between a few thousand and the best particle physics limit of order 105. We also investigate the constraints on supersymmetric theories with a light photino and gravitino, finding that the supersymmetry breaking scale parameter f>O(100GeV) and the selectron masses are >20 to 40 GeV. Finally, we study energy-loss rates by majoron and invisible axion emission.
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U2 - 10.1016/0550-3213(83)90104-9
DO - 10.1016/0550-3213(83)90104-9
M3 - Article
AN - SCOPUS:0000117446
SN - 0550-3213
VL - 223
SP - 252
EP - 268
JO - Nuclear Physics, Section B
JF - Nuclear Physics, Section B
IS - 1
ER -