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Title: Revisiting Supernova 1987A constraints on dark photons

We revisit constraints on dark photons with masses below ~ 100 MeV from the observations of Supernova 1987A. If dark photons are produced in sufficient quantity, they reduce the amount of energy emitted in the form of neutrinos, in conflict with observations. For the first time, we include the effects of finite temperature and density on the kinetic-mixing parameter,ϵ, in this environment. This causes the constraints on ϵ to weaken with the dark-photon mass below ~ 15 MeV. For large-enough values of ϵ, it is well known that dark photons can be reabsorbed within the supernova. Since the rates of reabsorption processes decrease as the dark-photon energy increases, we point out that dark photons with energies above the Wien peak can escape without scattering, contributing more to energy loss than is possible assuming a blackbody spectrum. Furthermore, we estimate the systematic uncertainties on the cooling bounds by deriving constraints assuming one analytic and four different simulated temperature and density profiles of the proto-neutron star. Finally, we estimate also the systematic uncertainty on the bound by varying the distance across which dark photons must propagate from their point of production to be able to affect the star. Finally, this work clarifiesmore » the bounds from SN1987A on the dark-photon parameter space.« less
Authors:
 [1] ;  [1] ;  [1]
  1. Stony Brook Univ., NY (United States). C.N. Yang Inst. for Theoretical Physics
Publication Date:
Grant/Contract Number:
SC0008061; PHY1316617
Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2017; Journal Issue: 1; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Research Org:
Stony Brook Univ., NY (United States)
Sponsoring Org:
USDOE; National Science Foundation (NSF)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Beyond Standard Model; Thermal Field Theory
OSTI Identifier:
1360795

Chang, Jae Hyeok, Essig, Rouven, and McDermott, Samuel D. Revisiting Supernova 1987A constraints on dark photons. United States: N. p., Web. doi:10.1007/JHEP01(2017)107.
Chang, Jae Hyeok, Essig, Rouven, & McDermott, Samuel D. Revisiting Supernova 1987A constraints on dark photons. United States. doi:10.1007/JHEP01(2017)107.
Chang, Jae Hyeok, Essig, Rouven, and McDermott, Samuel D. 2017. "Revisiting Supernova 1987A constraints on dark photons". United States. doi:10.1007/JHEP01(2017)107. https://www.osti.gov/servlets/purl/1360795.
@article{osti_1360795,
title = {Revisiting Supernova 1987A constraints on dark photons},
author = {Chang, Jae Hyeok and Essig, Rouven and McDermott, Samuel D.},
abstractNote = {We revisit constraints on dark photons with masses below ~ 100 MeV from the observations of Supernova 1987A. If dark photons are produced in sufficient quantity, they reduce the amount of energy emitted in the form of neutrinos, in conflict with observations. For the first time, we include the effects of finite temperature and density on the kinetic-mixing parameter,ϵ, in this environment. This causes the constraints on ϵ to weaken with the dark-photon mass below ~ 15 MeV. For large-enough values of ϵ, it is well known that dark photons can be reabsorbed within the supernova. Since the rates of reabsorption processes decrease as the dark-photon energy increases, we point out that dark photons with energies above the Wien peak can escape without scattering, contributing more to energy loss than is possible assuming a blackbody spectrum. Furthermore, we estimate the systematic uncertainties on the cooling bounds by deriving constraints assuming one analytic and four different simulated temperature and density profiles of the proto-neutron star. Finally, we estimate also the systematic uncertainty on the bound by varying the distance across which dark photons must propagate from their point of production to be able to affect the star. Finally, this work clarifies the bounds from SN1987A on the dark-photon parameter space.},
doi = {10.1007/JHEP01(2017)107},
journal = {Journal of High Energy Physics (Online)},
number = 1,
volume = 2017,
place = {United States},
year = {2017},
month = {1}
}