Dark light, dark matter, and the misalignment mechanism

Nelson, Ann E.; Scholtz, Jakub

doi:10.1103/physrevd.84.103501

Cited by 338 publications

(435 citation statements)

References 29 publications

(39 reference statements)

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“…[6,7,10,11]) with the 3+1+1 scheme [1,9]. We will lay out some conventions for discussing these models, leaving a more complete discussion of statistical methods and derivation of the oscillation formulae in the 3+1+1 scenario to the appendix.…”

Section: Phenomenology Of Sterile Neutrino Modelsmentioning

confidence: 99%

“…This improves the compatibility of the combined appearance data within the 3+1 framework, but we find that the best fit region shifts considerably to larger mixings and smaller mass splittings, which increases the tension with the null experiments. Second, we explore the phenomenology of, and present constraints on, the "3+1+1" framework of [1,9]. We will examine exactly how and to what extent the fifth neutrino is able to have an effect on the allowed parameter space of the fourth neutrino.…”

Section: Introductionmentioning

confidence: 99%

“…In this paper we consider a simple scheme, proposed in [1], designed to alleviate the tension between the LSND and MB positive signals and the null results from reactor and short baseline experiments. This scenario requires a single light sterile neutrino with mass splitting in the MB and LSND range between 0.1 and 1 eV 2 and a second much heavier (∆m 2 1000 eV 2 ) neutrino whose oscillations are averaged over.…”

Section: Introductionmentioning

confidence: 99%

“…Early results from MB [3,5] suggested that such a 3+1 scheme might not have been compatible with the MB data alone, since the parameters needed to fitν µ →ν e and ν µ → ν e appeared to be different: at high energy the MB anti-neutrino mode favored oscillations and was in better agreement with theν µ →ν e LSND data, while ν µ → ν e data was consistent with a null result. 1 The addition of a second sterile neutrino (the 3+2 scheme) allows for CP violation which can reconcile differences inν µ →ν e and ν µ → ν e . However, this scheme suffers from a similar tension between the null data and the positive signals and does little to ameliorate the difficulties of the 3+1 scheme [6,7].…”

Section: Introductionmentioning

confidence: 99%

“…At the same time, there is a strong tension between the positive signals of LSND and MB and the null results of νe and νµ disappearance experiments. We explore a scenario, first proposed in [1], where the presence of an additional heavy sterile neutrino (with mass well above an eV) can alleviate tension between LSND, MB and the null results of disappearance experiments. We compare and contrast this 3+1+1 scenario with the more standard 3+1 scenario and carry out global fits to all oscillation data including new 2011 MBν data.…”

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confidence: 99%

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Neutrino phenomenology in a3+1+1framework

2012

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Evidence continues to grow in the MiniBooNE (MB) antineutrino mode supporting a low-energy excess compatible with the MB neutrino mode and possibly also confirming the results of the LSND experiment. At least one sterile neutrino is required to explain the anomalies consistent with the observations of other experiments. At the same time, there is a strong tension between the positive signals of LSND and MB and the null results of νe and νµ disappearance experiments. We explore a scenario, first proposed in [1], where the presence of an additional heavy sterile neutrino (with mass well above an eV) can alleviate tension between LSND, MB and the null results of disappearance experiments. We compare and contrast this 3+1+1 scenario with the more standard 3+1 scenario and carry out global fits to all oscillation data including new 2011 MBν data. We find that the tension can be somewhat alleviated and that a phenomenologically viable window for the heavy neutrino, consistent with rare decays and BBN constraints, can be found if the fifth neutrino has a mass of order 0.3 − 10 GeV. We also find, however, that the 2011 MBν data exacerbates the tension with null experiments in both the 3+1 and 3+1+1 models when the lowest energy bins are included, resulting in little improvement in the global fit. We also discuss the implications of an additional neutrino for the reactor and gallium anomalies, and show that an oscillation explanation of the anomalies is disfavored by cosmological considerations, direct searches, and precision electroweak tests.2

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Section: Phenomenology Of Sterile Neutrino Modelsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

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Neutrino phenomenology in a3+1+1framework

2012

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Limits on Dark Photons, Scalars, and Axion‐Electromagnetodynamics with the ORGAN Experiment

et al. 2023

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Axions are a well‐motivated dark matter candidate, with a host of experiments around the world searching for direct evidence of their existence. The ORGAN Experiment is a type of axion detector known as an axion haloscope, which takes the form of a cryogenic resonant cavity embedded in a strong magnetic field. ORGAN recently completed Phase 1a, a scan for axions ≈65 µeV, and placed the most stringent limits to date on the dark matter axion–photon coupling in this region, . It has been shown that axion haloscopes such as ORGAN are automatically sensitive to other kinds of dark matter candidates, such as dark photons, scalar field/dilaton dark matter, and exotic axion–electromagnetic couplings motivated by quantum electromagnetodynamics. The exclusion limits placed on these various dark matter candidates are computed by ORGAN 1a, and sensitivity for some future ORGAN phases are projected. In particular, the dark photon limits are the most sensitive to date in some regions of the parameter space.

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On the Interaction of Massive Photons and Mechanical Oscillators in Cavity Optomechanics: Basic Model and Quantization

Mikki

2023

Annalen der Physik

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This study investigates the theoretical aspects of the interaction between photons with mass and a mechanical oscillator as drawn within the framework of cavity optomechanics. The study employs Proca theory as the mathematical framework to initially describe the dynamics of massive photons in a Fabry‐Perot cavity with a movable mass, both in classical and quantum scenarios. It quantifies the modifications induced by the nonzero photon mass, considering first‐ and second‐order effects, and derives expressions for the amplification of radiation pressure resulting from the presence of nonzero photon mass. Additionally, it derives the Hamiltonian of the quantum optomechanical system, incorporating the effects of photon mass at first and second order. It anticipates that experimental realization of massive optomechanics can be achieved by utilizing Proca material, which is a spatio‐temporally dispersive material that exhibits behavior equivalent to Proca theory in a vacuum, thus enabling the study of the interaction between massive photons and mechanical systems in cavity‐based optomechanical setups (referred to as massive cavity optomechanics). The study presented here caters to a diverse audience with an interest in the analysis and measurement of interactions among massive objects at the quantum scale.

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Dark light, dark matter, and the misalignment mechanism

Cited by 338 publications

References 29 publications

Neutrino phenomenology in a3+1+1framework

Neutrino phenomenology in a3+1+1framework

Limits on Dark Photons, Scalars, and Axion‐Electromagnetodynamics with the ORGAN Experiment

On the Interaction of Massive Photons and Mechanical Oscillators in Cavity Optomechanics: Basic Model and Quantization

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