Mirror dark matter and electronic recoil events in XENON1T

Zu, Lei; Yuan, Guan-Wen; Liu, Feng; Fan, Yi-Zhong

doi:10.1016/j.nuclphysb.2021.115369

Cited by 18 publications

(6 citation statements)

References 16 publications

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“…The possibility of exotic solar neutrino interactions, induced by a light mediator, has also been considered by several authors [52][53][54][55][56], as well as a variety of mechanism that could boost a light Dark Matter candidate [50,[56][57][58][59][60][61][62][63], with some consensus around models with two states split by only a few keV. Finally, the possibility of a nonthermal Hidden photon Dark Matter [64][65][66], of photons emitted by Dark Matter [67][68][69], mirror symmetry [70] or U(1)-2HDM [71] have been considered.…”

Section: Discussionmentioning

confidence: 99%

XENON1T solar axion and the Higgs boson emerging from the dark

et al. 2020

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In a recent letter we proposed a new non-thermal mechanism of Dark Matter production based on vacuum misalignment, where both the Higgs boson and a very light pseudo-scalar η emerge from the Dark sector. In this letter, we identify the parameter space in a composite scenario where the light pseudo-scalar can be produced in the sun and explain the XENON1T excess in electron recoil data. The model's Dark Matter candidate has a mass around 50 TeV and out of range for Direct Detection. Testable predictions include Gravitational waves at frequencies in the Hz range from a cosmological phase transition, an exotic decay Z → γ + inv. with rates 4 ÷ 16 • 10 −12 testable at a future Tera-Z collider, and an enhancement by 17 ÷ 40% of the branching ratio KL → π 0 + inv., not enough to explain the KOTO anomaly. All these predictions may be confirmed by future experiments.

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Section: Discussionmentioning

confidence: 99%

XENON1T solar axion and the Higgs boson emerging from the dark

et al. 2020

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“…In this work, we only consider the kinetic mixing term, which has already been related to many astronomical and cosmological observations [14,31,32]. With this mixing, where is a constant of approximately ∼10 −10 to explain the small scale structure [14], the solar system could capture enough mirror particles to form the P9 in history.…”

Section: Mirror Planet In Solar Systemmentioning

confidence: 99%

The Possibility of Mirror Planet as Planet Nine in the Solar System

Wang

Tang

et al. 2022

Universe

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A series of dynamical anomalies in the orbits of distant trans-Neptunian objects points to a new celestial body (usually named Planet Nine) in the solar system. In this draft, we point out that a mirror planet captured from the outer solar system or formed in the solar system is also a possible candidate. The introduction of the mirror matter model is due to an unbroken parity symmetry and is a potential explanation for dark matter. This mirror planet has null or fainter electromagnetic counterparts with a smaller optical radius and might be explored through gravitational effects.

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“…While this work was being completed, the Xenon1T experiment reported an excess of a few-keV electronic recoil events [167], which admits a variety of DM interpretations. It is interesting to note that mirror electrons within the MTH model might be able to account for such an excess [168], due to their higher velocity in the mirror plasma relative to mirror nuclei. However, we defer a careful study of this possibility for future work.…”

Section: Jhep11(2021)198mentioning

confidence: 99%

Direct detection of mirror matter in Twin Higgs models

Chacko

Curtin

Geller

et al. 2021

J. High Energ. Phys.

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We explore the possibility of discovering the mirror baryons and electrons of the Mirror Twin Higgs model in direct detection experiments, in a scenario in which these particles constitute a subcomponent of the observed DM. We consider a framework in which the mirror fermions are sub-nano-charged, as a consequence of kinetic mixing between the photon and its mirror counterpart. We consider both nuclear recoil and electron recoil experiments. The event rates depend on the fraction of mirror DM that is ionized, and also on its distribution in the galaxy. Since mirror DM is dissipative, at the location of the Earth it may be in the form of a halo or may have collapsed into a disk, depending on the cooling rate. For a given mirror DM abundance we determine the expected event rates in direct detection experiments for the limiting cases of an ionized halo, an ionized disk, an atomic halo and an atomic disk. We find that by taking advantage of the complementarity of the different experiments, it may be possible to establish not just the multi-component nature of mirror dark matter, but also its distribution in the galaxy. In addition, a study of the recoil energies may be able to determine the masses and charges of the constituents of the mirror sector. By showing that the mass and charge of mirror helium are integer multiples of those of mirror hydrogen, these experiments have the potential to distinguish the mirror nature of the theory. We also carefully consider mirror plasma screening effects, showing that the capture of mirror dark matter particles in the Earth has at most a modest effect on direct detection signals.

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Mirror dark matter and electronic recoil events in XENON1T

Cited by 18 publications

References 16 publications

XENON1T solar axion and the Higgs boson emerging from the dark

XENON1T solar axion and the Higgs boson emerging from the dark

The Possibility of Mirror Planet as Planet Nine in the Solar System

Direct detection of mirror matter in Twin Higgs models

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