New stellar constraints on dark photons

Haipeng An; Maxim Pospelov; Josef Pradler

doi:10.1016/j.physletb.2013.07.008

New stellar constraints on dark photons

Haipeng An, Maxim Pospelov, Josef Pradler

Research output: Contribution to journal › Article › peer-review

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Abstract

We consider the stellar production of vector states V within the minimal model of "dark photons". We show that when the Stückelberg mass of the dark vector becomes smaller than plasma frequency, the emission rate is dominated by the production of the longitudinal modes of V, and scales as κ2mV2, where κ and m_V are the mixing angle with the photon and the mass of the dark state. This is in contrast with widespread assertions in the literature that the emission rate decouples as the forth power of the mass. We derive ensuing constraints on the (κ, m_V) parameter space by calculating the cooling rates for the Sun and horizontal branch stars. We find that stellar bounds for m_V<10eV are significantly strengthened, to the extent that all current "light-shining-through-wall" experiments find themselves within deeply excluded regions.

Original language	English (US)
Pages (from-to)	190-195
Number of pages	6
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	725
Issue number	4-5
DOIs	https://doi.org/10.1016/j.physletb.2013.07.008
State	Published - Oct 1 2013
Externally published	Yes

Bibliographical note

Funding Information:
Research at the Perimeter Institute is supported in part by the Government of Canada through NSERC and by the Province of Ontario through MEDT .

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10.1016/j.physletb.2013.07.008

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title = "New stellar constraints on dark photons",

abstract = "We consider the stellar production of vector states V within the minimal model of {"}dark photons{"}. We show that when the St{\"u}ckelberg mass of the dark vector becomes smaller than plasma frequency, the emission rate is dominated by the production of the longitudinal modes of V, and scales as κ2mV2, where κ and mV are the mixing angle with the photon and the mass of the dark state. This is in contrast with widespread assertions in the literature that the emission rate decouples as the forth power of the mass. We derive ensuing constraints on the (κ, mV) parameter space by calculating the cooling rates for the Sun and horizontal branch stars. We find that stellar bounds for mV<10eV are significantly strengthened, to the extent that all current {"}light-shining-through-wall{"} experiments find themselves within deeply excluded regions.",

author = "Haipeng An and Maxim Pospelov and Josef Pradler",

note = "Funding Information: Research at the Perimeter Institute is supported in part by the Government of Canada through NSERC and by the Province of Ontario through MEDT . ",

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doi = "10.1016/j.physletb.2013.07.008",

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T1 - New stellar constraints on dark photons

AU - An, Haipeng

AU - Pospelov, Maxim

AU - Pradler, Josef

N1 - Funding Information: Research at the Perimeter Institute is supported in part by the Government of Canada through NSERC and by the Province of Ontario through MEDT .

PY - 2013/10/1

Y1 - 2013/10/1

N2 - We consider the stellar production of vector states V within the minimal model of "dark photons". We show that when the Stückelberg mass of the dark vector becomes smaller than plasma frequency, the emission rate is dominated by the production of the longitudinal modes of V, and scales as κ2mV2, where κ and mV are the mixing angle with the photon and the mass of the dark state. This is in contrast with widespread assertions in the literature that the emission rate decouples as the forth power of the mass. We derive ensuing constraints on the (κ, mV) parameter space by calculating the cooling rates for the Sun and horizontal branch stars. We find that stellar bounds for mV<10eV are significantly strengthened, to the extent that all current "light-shining-through-wall" experiments find themselves within deeply excluded regions.

AB - We consider the stellar production of vector states V within the minimal model of "dark photons". We show that when the Stückelberg mass of the dark vector becomes smaller than plasma frequency, the emission rate is dominated by the production of the longitudinal modes of V, and scales as κ2mV2, where κ and mV are the mixing angle with the photon and the mass of the dark state. This is in contrast with widespread assertions in the literature that the emission rate decouples as the forth power of the mass. We derive ensuing constraints on the (κ, mV) parameter space by calculating the cooling rates for the Sun and horizontal branch stars. We find that stellar bounds for mV<10eV are significantly strengthened, to the extent that all current "light-shining-through-wall" experiments find themselves within deeply excluded regions.

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SN - 0370-2693

VL - 725

SP - 190

EP - 195

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 4-5

ER -

New stellar constraints on dark photons

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