TY - JOUR
T1 - Nucleosynthesis constraints on the faint vector portal
AU - Fradette, Anthony
AU - Pospelov, Maxim
AU - Pradler, Josef
AU - Ritz, Adam
N1 - Publisher Copyright:
© Owned by the authors, published by EDP Sciences, 2015.
Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.
PY - 2015
Y1 - 2015
N2 - New Abelian U(1)' gauge bosons Vμ can couple to the Standard Model through mixing of the associated field strength tensor Vμν with the one from hypercharge, FY μν. Here we consider early Universe sensitivity to this vector portal and show that the effective mixing parameter with the photon, κ, is being probed for vector masses in the GeV ballpark down to values 10-10 ≤ κ ≤ 10-14 where no terrestrial probes exist. The ensuing constraints are based on a detailed calculation of the vector relic abundance and an in-depth analysis of relevant nucleosynthesis processes.
AB - New Abelian U(1)' gauge bosons Vμ can couple to the Standard Model through mixing of the associated field strength tensor Vμν with the one from hypercharge, FY μν. Here we consider early Universe sensitivity to this vector portal and show that the effective mixing parameter with the photon, κ, is being probed for vector masses in the GeV ballpark down to values 10-10 ≤ κ ≤ 10-14 where no terrestrial probes exist. The ensuing constraints are based on a detailed calculation of the vector relic abundance and an in-depth analysis of relevant nucleosynthesis processes.
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U2 - 10.1051/epjconf/20159601024
DO - 10.1051/epjconf/20159601024
M3 - Conference article
AN - SCOPUS:84978961922
VL - 96
JO - EPJ Web of Conferences
JF - EPJ Web of Conferences
SN - 2101-6275
M1 - 01024
T2 - International Conference Dark Matter, Hadron Physics and Fusion Physics, DHF 2014
Y2 - 24 September 2014 through 26 September 2014
ER -